Upgrade your Porsche 914 amd 912E engine with a billet stainless magnetic drain plug (12 x 1.5mm) from LN Engineering and the Type 4 Store. Made in house at LN Engineering in Momence, IL, our USA made drain plug features a rare earth magnet and stainless construction. It's the finest drain plug money can buy. Includes one drain plug washer/gasket/seal (part number N 013 805 1). Before ordering, please verify which drain plug your engine needs; some may require a 12 x 1.5mm drain plug while others use a 14 x 1.5mm (which we also manufacture under part number N0297014LN). Learn More

Our billet valve covers for VW Type 4 and Porsche 914 and 912E models are precision made in the USA. Billet construction provides superior rigidity and o-rings ensure positive sealing. Valve cover set includes o-rings and necessary hardware to bolt these valve covers onto your Type 4 engine. Shown with standard black anodized finish. Learn More

Vapor blasting, also known as vapor honing, is a highly effective cleaning technique that utilizes a mixture of water and abrasive media to gently yet thoroughly clean and finish surfaces. This process is particularly beneficial for engine parts such as aluminum engine blocks, as it can remove grime, corrosion, and old paint without causing damage to the underlying metal. Vapor blasting is an essential part of the reconditioning process for engine components, as it not only cleans but also leaves a smooth, satin finish that enhances the appearance and longevity of the parts. This method is favored for its ability to reach into intricate areas and crevices, ensuring a comprehensive clean that is crucial for optimal engine performance and reliability. Our vapor blasting service will remove most of the baked on grime, staining, and corrosion common to magnesium and aluminum engines. This service is only available with qualifying products and services and is not a stand-alone service. Please note: Although cases are washed several times during our processes, it is up to the engine builder to clean all surfaces including cylinder bores as well as coolant and oil passages prior to engine assembly. This service does not qualify for free shipping. Piston squirters must be replaced after vapor blasting service. Price per hour; minimum one (1) hour service charge when vapor blasting parts. Learn More

Aircooled and Watercooled Porsche Cylinder Head Rebuild Service

RND rebuilt Porsche cylinder heads benefit from years of experience with thousands of Porsche heads rebuilt by our specialists to date. 100% of components are tested, reconditioned, or replaced and feature multi-angle Serdi valve job, Viton valve stem seals, and critical surfaces are diamond milled, exceeding original manufacturer specifications. All components are inspected and replaced if worn. M96/M97 heads are always pressure tested and all cylinder heads are vacuum tested after final assembly as part of our standard quality control checks.

Pricing and Options

New Valve Guides Installed: $35 each New Valve Seats Installed: $40 each Crack Repair/Welding: $CALL (No crack repair on M96/M97 cylinder heads) Broken Bolt/Stud or Thread Repair: Starting at $25 each New/Upgraded Valve Springs & Retainers: $CALL Flame-ringing: $375 (Set of 6 Aircooled 911 Heads) Modify for Twin Plug: $475 (Set of 6 Aircooled 911 Heads) Cryogenic Treatment: $CALL Thermal Barrier / Thermal Dispersant Coatings: $CALL

Additional Notes

We do not flat rate pricing on cylinder head rebuilding for VW Type 4 / Porsche 914 / 912E or Porsche 356/912 engines; we do however offer new replacement Porsche cylinder heads. For engines that have or will see track or race use, we recommend replacing all valve seats, valves, springs, and retainers. For M96/M97 or 9A1/MA1 cylinder heads, cam covers can be sent with the heads if you would like them to be cleaned. Additional fee applies. Please be sure to remove your camshafts and other accessories such as lifters, lifter valley/cradle, Variocam components, etc. from the cylinder heads prior to shipping. If additional disassembly/handling is required, you will be billed at shop rate. If we are twin plugging your aircooled Porsche 911 cylinder heads, we can modify your lower valve covers for twin plug. Additional fee applies. Each head should have been individually boxed with rigid padding on all sides then each individual box put into a larger box with more padding on all sides. Use of plastic cases, bubble wrap, air pillows, peanuts, or shredded paper is not acceptable. Package your cylinder heads assuming they are going to be dropped or possibly launched out of a cannon. This service does not qualify for free shipping.

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Our piston ring end gapping service provides you with pistons rings for your aircooled or watercooled Porsche engine that have had their end gaps set correctly for your application. All you need to do is clean the rings prior to installation. Learn More

When purchasing connecting rods and pistons from LN Engineering, we offer our optional Porsche Engine Static Balancing Service for all aircooled and watercooled models. Piston assemblies and connecting rods will be balanced within +/- 0.5 grams. All components will be labeled and matched up so that they can be installed as match sets in their corresponding positions. All you need to do is clean the components prior to installation. Learn More

Do you have an aluminum or magnesium Porsche engine case and need to have case savers or timeserts installed for the cylinder head studs? We will drill and tap your block and install new case savers or timeserts for use with new head studs (sold separately). It's a must on all engine rebuilds with a magnesium case! Please note that this service does not qualify for free shipping. Learn More

Machine Porsche Engine Case for Machine-In Cylinders and Resurface Deck. For 964/993 3.6 engine cases, you can optionally have the case machined for o-rings when opened to the 109mm case spigot. O-Rings sold separately. We also offer resurfacing only as an option if you want to retain the stock cylinder spigot diameters. Please note that this service does not qualify for free shipping. Learn More

Replace Piston Squirters / Splash Tubes on Porsche 911/930/964/993 Engine Case. Replacement squirters/splash tubes sold separately. Please note that this service does not qualify for free shipping. Learn More

Our cryogenic treatment service is recommended for all MA1/9A1 engine blocks used in Porsche Boxster, Cayman, and 911 models. Engine blocks that are cryogenically treated are more dimensionally stable and residual casting stresses are eliminated with this process that are usually the root cause of piston seizing and resulting cylinder bore scoring in these engines. Porsche 944/968 and M96/M97 engine blocks/cases/crankcase housings can be cryogenically treated for the same price. Please contact us for more information about having other engine components cryogenically treated.

What are the benefits of cryogenic treatment of aluminum alloys?

Cryogenic treatment of aluminum alloys involves subjecting the material to extremely low temperatures, typically below -100 degrees Celsius (-148 degrees Fahrenheit), for an extended period of time. This process is done to enhance the properties of aluminum alloys, and it can offer several benefits: 1. Increased strength and hardness: Cryogenic treatment can lead to improvements in the hardness and strength of aluminum alloys. This is especially beneficial for applications where high strength and hardness are required, such as in aerospace and automotive components. 2. Improved wear resistance: Cryogenic treatment can increase the wear resistance of aluminum alloys. This is important in applications where the material is subjected to abrasive or erosive wear, such as in cutting tools or engine components. 3. Enhanced dimensional stability: Cryogenic treatment can reduce the dimensional instability of aluminum alloys, which is particularly useful in precision engineering applications where tight tolerances are required. 4. Residual stress relief: The cryogenic treatment process can help relieve residual stresses that may be present in aluminum alloys, which can improve the overall stability and performance of the material. 5. Increased durability and longevity: Cryogenically treated aluminum alloys tend to have improved durability and a longer lifespan due to the enhanced material properties. 6. Reduced distortion and warping: Cryogenic treatment can minimize distortion and warping during subsequent machining or heat treatment processes, resulting in better overall part quality. 7. Greater fatigue resistance: Aluminum alloys that have undergone cryogenic treatment may exhibit improved resistance to fatigue, making them suitable for applications that involve cyclic loading. 8. Enhanced electrical conductivity: In some cases, cryogenic treatment can improve the electrical conductivity of aluminum alloys, which can be advantageous in electrical and electronic applications. It's important to note that the specific benefits of cryogenically treating aluminum alloys can vary depending on the alloy composition, the treatment process, and the intended application. Not all aluminum alloys will respond to cryogenic treatment in the same way, so it's essential to consider the material's properties and the application requirements when deciding whether cryogenic treatment is beneficial. Additionally, cryogenic treatment is just one of several techniques used to enhance the properties of materials, and its effectiveness should be evaluated in the context of the overall manufacturing process and design considerations.

Do other materials or alloys benefit from cryogenic treatment?

Yes, cryogenic treatment can be used on a wide range of materials and alloys beyond aluminum. While the specific benefits and effectiveness of cryogenic treatment can vary depending on the material and its composition, it has been applied to various metals, plastics, and other materials with the goal of improving their properties. Here are some examples: 1. Steel: Cryogenic treatment is commonly used for various types of steel, including tool steel, stainless steel, and carbon steel. It can enhance hardness, wear resistance, and dimensional stability. Tool steel, in particular, benefits from cryogenic treatment to increase its lifespan and improve performance in cutting and machining applications. 2. Cast iron: Cryogenic treatment can improve the microstructure and mechanical properties of cast iron, making it more wear-resistant and less prone to cracking. 3. Plastics and polymers: Some plastics and polymers can benefit from cryogenic treatment to reduce internal stresses and improve their dimensional stability. This can be useful in industries where precision and tight tolerances are crucial. 4. Copper and copper alloys: Cryogenic treatment can enhance the electrical conductivity and mechanical properties of copper and its alloys. It is often used in the production of electrical components and connectors. 5. Titanium alloys: Cryogenic treatment can increase the strength and fatigue resistance of titanium alloys, making them more suitable for aerospace and medical applications. 6. Nickel-based alloys: Materials like Inconel and Hastelloy, which are used in high-temperature and corrosive environments, can benefit from cryogenic treatment to improve their resistance to wear and corrosion. 7. Composites: Some composite materials, such as carbon fiber composites, can undergo cryogenic treatment to reduce internal stresses and improve their strength and stiffness. It's important to note that the specific benefits of cryogenic treatment can vary depending on the material's composition, its intended application, and the treatment process parameters (e.g., temperature and duration). Cryogenic treatment is often used in conjunction with other heat treatment processes to achieve the desired material properties. As with any material treatment, careful consideration of the material's characteristics and the intended application is essential to determine whether cryogenic treatment will be beneficial. Learn More

Tired of cheap backing plate "covers" that don't fit your VW's fan shroud correctly? Want to dress up your engine bay? Our 100% billet made in the USA fan mount backing plate provides superior rigidity than other flimsy covers. Designed for 12V systems and fits factory VW Type 1 fan shrouds as well as the Type 4 Store's DTM cooling systems for Type 4 Upright Conversions. Also fits our Type 1 DTM. Shown with our standard black anodize finish. Learn More

LN Engineering Billet Stainless Steel Porsche 356 912 Magnetic Drain Plug. A magnetic drain plug is an easy way to add protection to your Porsche 356 or 912 engine. The integrated rare-earth magnet will remove any suspended iron particles from the oil. Inspection of the magnet during an oil change allows for an easy way to monitor the health of your engine. Proudly made in the USA in house at our Momence, IL facility. Fits all Porsche 356 and 912 models. Learn More

LN Engineering 91110516200LN Porsche 911 1969-1983 Billet Aluminum Intermediate Shaft (IMS) Cover fits 2.2, 2.4, 2.7, and 3.0 Mezger engines. Please select which version you need for your engine. The early version (91110516200LN-E) does not have clearance for belt installation when fitting a larger crankshaft pulley; later models with the larger crankshaft pulley require the late version (91110516200LN-L) has the required clearance for belt installation. Please verify which part you need before ordering. Uses gasket part number 93010519801 (sold separately). Please note 3.0 SC models with engine numbers M 63d 4070 >> M 64d 3717 >> M 63d 8155 >> M 67d 0712 >> use part number 93010516500. Anodize colors available: clear anodize (bright dip - looks like raw machined aluminum) or matte clear anodize. Learn More

All Porsche 911 engines should have a magnetic drain plug. But all are not created equal. Check out what makes ours the best. First we start with magnetic stainless bar stock to make our billet Porsche 911 drain plugs. Then we source rare earth magnets that are the strongest you'll find on any drain plugs currently on the market. If you've ever seen the OEM magnetic drain plug offered to the aftermarket, you already know the magnet is very weak and can't even hold the drain plug on a flat sideways surface. That's not the case with ours! The other benefit of our magnetic drain plug is that unlike the OEM one that has a recessed dish which is nearly impossible to clean, ours has a flat end that is much easier to clean. This is absolutely the best magnetic drain plug money can buy. Even better, it's made right here in the USA. Doesn't get any better than this. Replaces Porsche part number 91110717603. Includes one drain washer/gasket/seal (part number 900 123 118 30). Please note: You'll need to verify which plug your vehicle needs and how many are needed before ordering: 993 models require Qty 1 of 94410719701LN 964 models require Qty 2 of 94410719701LN 911 models from 65 through 83 require Qty 2 91110717603LN- one is the for sump plate (if sump plate has a provision for a drain plug) and the other is for the oil tank (reservoir) 911 models 84 through 89 (including 964 models with the 3.3 Turbo through 91) require Qty 1 of 94410719701LN which fits the case and Qty 1 91110717603LN for the oil tank (reservoir) A complete list of Porsche vehicles this drain plug fits is provided below. Learn More

All Porsche 911 engines should have a magnetic drain plug. But all are not created equal. Check out what makes ours the best. First we start with magnetic stainless bar stock to make our billet Porsche 911 drain plugs. Then we source rare earth magnets that are the strongest you'll find on any drain plugs currently on the market. If you've ever seen the OEM magnetic drain plug offered to the aftermarket, you already know the magnet is very weak and can't even hold the drain plug on a flat sideways surface. That's not the case with ours! The other benefit of our magnetic drain plug is that unlike the OEM one that has a recessed dish which is nearly impossible to clean, ours has a flat end that is much easier to clean. This is absolutely the best magnetic drain plug money can buy. Even better, it's made right here in the USA. Doesn't get any better than this. Replaces Porsche part number 94410719701. Includes one drain plug washer/gasket/seal (part number 900 123 118 30). Please note: You'll need to verify which plug your vehicle needs and how many are needed before ordering: 993 models require Qty 1 of 94410719701LN 964 models require Qty 2 of 94410719701LN 911 models from 65 through 83 require Qty 2 91110717603LN- one is the for sump plate (if sump plate has a provision for a drain plug) and the other is for the oil tank (reservoir) 911 models 84 through 89 (including 964 models with the 3.3 Turbo through 91) require Qty 1 of 94410719701LN which fits the case and Qty 1 91110717603LN for the oil tank (reservoir) Also fits Porsche 924, 944, 968, and 928 models and other Porsche models listed below. Learn More

The pressure pipe for 1989-1998 Porsche 911 964/993 models with the 3.6 and 3.8 liter engine is no longer available (NLA) from Porsche. LN Engineering has re-designed the NLA 96410711800 pressure pipe to now be made billet out of aluminum and we have added a flat to allow for easier removal. Quantity 2 required per engine. When installed on a 964, use qty 4 o-ring part number 99970190940 (6,7 X 3,53); 993 uses qty 4 of o-ring 99970144940 (8,3 X 2,4). O-rings sold separately. Learn More

The OE Porsche oil bridge is susceptible to leaking due to its plastic construction. Our oil bridge machined from 6061 aluminum is a direct replacement for P/N's 99310708800 and 96410708803. All aluminum construction ensures equal expansion with your all-aluminum Porsche engine. Made in the USA right here in Momence, IL. Sold individually- quantity two (2) needed per engine. Includes o-ring 99970728840. Learn More

Porsche 911 Magnetic Stainless Steel Engine Oil Drain Plug on Oil Filter Console (Oil Thermostat Housing). Fits 1995-1998 993 models. Our billet magnetic stainless steel drain plug replaces the failure prone factory aluminum drain plug and adds a rare earth magnetic to catch ferrous debris. A must for all Porsche 911 993 engines. Learn More

Rebuilding your Porsche 356 or 912 engine? LN Engineering has all the parts and accessories you need to rebuild and upgrade your stock 1500 or 1600 Type 616 engine to increase performance and reliability. Your first step should be to download the LN Engineering Porsche 356 and 912 Catalog as well as our "How to Hot Rod your Porsche 356" to understand your options and how best to proceed before you rebuild your engine. Learn More

LN Engineering prides itself on being your one stop shop for everything you need to rebuild and upgrade your aircooled Porsche 911 engine. The LN Engineering Porsche 911 Aircooled Catalog includes information about Nickies cylinder and piston kits as well as sets from Mahle Motorsport. We also review performance and reliability upgrades from ARP, Carrillo, Pauter, Total Seal, Auto Verdi, and Clevite that pertains to rebuilding all aircooled Porsche 911 models from 1965-1998 with 2.0, 2.2, 2.4, 2.7, 3.0, 3.2, 3.3, and 3.6 Mezger engines. Learn More

LN Engineering’s Type 4 Store was originally founded by Jake Raby in 2004 which we took over in 2014. The Type 4 Store supplies all the engine components to Aircooled Technology and all the engine kits we offer were designed and tested by Jake Raby from the popular Camper Special to our 2563cc Porsche and Volkswagen engine kits. You can order a complete engine kit for your VW Type 4 / Porsche 914 engine or individual components including camshaft kits and DTM cooling systems for upright conversions. The Type 4 Store has all the parts and accessories you need to rebuild and upgrade your VW Type 4 engine. Download the Type 4 Store catalog to learn more about all our products and services. Learn More

We offer several variations of our billet aluminum Porsche 911 breather cover lid depending on what model year your vehicle is: 93010707302LN features one threaded sensor hole, no brass tube hole 91110707100LN is machined to accept the brass tube and has two threaded sensor holes 96410707320LN has two threaded sensor holes, no brass tube hole (964 Turbo style) 90110707302LN has no threaded sensor, no brass tube hole (993 style) Please verify which cover your engine needs before ordering. For breather covers with the brass tube (91110707100), you are required to remove the tube from your original cover and re-install it into the new breather cover lid. If you would like us to do this for you, please contact us for more information. Anodize colors available: clear anodize (bright dip - looks like raw machined aluminum), matte clear anodize, black, blue, red, green, gold, orange, purple, copper, penny, or gunmetal. If purchasing multiple items with custom anodize finish, please call us first before placing an order as we can have multiple items anodized for the minimum batch charge. Learn More

Our aluminum chain boxes/cases for all Porsche 911 Mezger engines are billet, not cast, and are machined from a solid billet of aluminum. Not only are the stronger than the original cast magnesium chain boxes, but they look better too. We've engineered these new replacement chain boxes to be a direct bolt on that matches the aesthetic of the originals as closely as possible and being that they are made out of 6061-T6 aluminum, they won't corrode or oxidize like the original magnesium chain boxes. Anodize colors available: clear anodize (bright dip - looks like raw machined aluminum), matte clear anodize, black, blue, red, green, gold, orange, purple, copper, penny, or gunmetal. If purchasing multiple items with custom anodize finish, please call us first before placing an order as we can have multiple items anodized for the minimum batch charge. Set includes both left and right chain boxes. Hardware sold separately. Proudly made in the USA by LN Engineering in Momence, IL! Fits 2.0 through 3.2 Porsche 911 and 914-6 models from 1970 through 1989 and 3.3 Turbo engines up to 1992. Learn More

Our Porsche 911 930 model specific billet 6061 aluminum valve covers for 1965 through 1989 engines (2.0 to 3.3 liter) are a direct replacement for your old warped, leak-prone factory cast magnesium or aluminum covers. Our design that pays homage to the original factory parts, duplicating appearance as closely as possible to the originals. We have added the much needed rigidity to the sealing area and have also incorporated custom o-rings (included at no extra charge) for sealing rather than factory paper gaskets, all while still keeping our covers nice and light. Covers feature a black-anodize finish and fit all factory hardware. Available as a complete set of four upper (90110511503LN) and lower (93010511605LN) covers. Lower covers are also available machined for twin plugs (93010511605DLN). Made in the USA in our in-house manufacturing facility. Custom finishes/colors are available special order. If you prefer valve covers without provision for o-rings, please call us as we can make our billet valve covers to accept the factory paper gaskets instead and offer them as a special order item. Anodize colors available: clear anodize (bright dip - looks like raw machined aluminum), matte clear anodize, black, blue, red, green, gold, orange, purple, copper, penny, or gunmetal. If purchasing multiple items with custom anodize finish, please call us first before placing an order as we can have multiple items anodized for the minimum batch charge. If you are installing these on an engine going into a 914/6, original or converted, we can cut them down to provide extra clearance in the engine bay if you purchase an uncoated set.; anodizing would be extra. Please contact us for further details before ordering for this application. Price includes custom Viton o-rings. Learn More

The OE Porsche 911 964/993 chain box covers/lids, like many of the early cast covers, can can susceptible to corrosion and leaks over time. Our 6061 billet aluminum 964/993 chain box covers/lids are a direct factory fit to replace the OE covers and are machined to accept factory hardware and gaskets. The machine work, black anodizing, and gasket fitment provides a level of fit and finish above that of the factory cast pieces while staying true to factory part for those wanting a billet part that looks as close to factory as possible. Fits 1989-1998 Porsche 3.6 964 and 993 3.6 and 3.8 engines and are direct replacements for P/N's 96410510801 (passenger/right side) and 96410510701 (driver/left side) and are designed to use gasket part number 96410518101. Machined in the USA right here in Momence, IL by our skilled CNC machinists. Kit includes chain box cover parts numbers 96410510701LN and 96410510801LN. Gaskets optional.

Anodize colors available: clear anodize (bright dip - looks like raw machined aluminum), matte clear anodize, black, blue, red, green, gold, orange, purple, copper, penny, or gunmetal. If purchasing multiple items with custom anodize finish, please call us first before placing an order as we can have multiple items anodized for the minimum batch charge.

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Our Porsche 911 964 model specific billet 6061 aluminum valve covers are a direct replacement for your old leak-prone factory covers with a design that pays homage to the factory parts, duplicating appearance as closely as possible to the originals. We have added the much needed rigidity to the gasket area while still keeping the covers nice and light. These covers are machined to fit the OE factory seal (sold separately). Covers feature a black-anodized finish and fit all factory hardware. Lower covers require qty 12 wire clips 99310590200 and qty 12 clip screws 99991909600. Available as a complete set of four: 2 upper (96410511503LN) and 2 lower (96410511603LN) covers. Made in the USA in our in-house manufacturing facility. Other finishes/colors are available special order.

Anodize colors available: clear anodize (bright dip - looks like raw machined aluminum), matte clear anodize, black, blue, red, green, gold, orange, purple, copper, penny, or gunmetal. If purchasing multiple items with custom anodize finish, please call us first before placing an order as we can have multiple items anodized for the minimum batch charge.

If you are installing these on an engine going into a 914/6, original or converted, we can cut them down to provide extra clearance in the engine bay if you purchase an uncoated set.; anodizing would be extra. Please contact us for further details before ordering for this application.

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Our Porsche 911 993 model specific billet 6061 aluminum valve covers are a direct replacement for your old leak-prone factory covers with a design that pays homage to the factory parts, duplicating appearance as closely as possible to the originals. We have added the much needed rigidity to the gasket area while still keeping the covers nice and light. These covers are machined to fit the OE factory seal (sold separately). Covers feature a black-anodize finish and fit all factory hardware. Lower covers require qty 12 wire clips 99310590200 and qty 12 clip screws 99991909600. Available as a complete set of four: 2 upper (99310511505LN) and 2 lower (99310511607LN) covers. Made in the USA in our in-house manufacturing facility. Custom finishes/colors are available special order.

Anodize colors available: clear anodize (bright dip - looks like raw machined aluminum), matte clear anodize, black, blue, red, green, gold, orange, purple, copper, penny, or gunmetal. If purchasing multiple items with custom anodize finish, please call us first before placing an order as we can have multiple items anodized for the minimum batch charge.

If you are installing these on an engine going into a 914/6, original or converted, we can cut them down to provide extra clearance in the engine bay if you purchase an uncoated set.; anodizing would be extra. Please contact us for further details before ordering for this application.

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The OE Porsche 911 Mezger engine chain box covers, like many of the early cast covers, can can susceptible to corrosion and leaks over time. Our billet 6061 Porsche 911 aluminum chain box covers are a direct factory fit to replace the OE Porsche chain box covers and are machined to accept factory hardware and gaskets for 1965 through 1989 models (2.0 to 3.3 liter engines) fitted with hydraulic chain tensioners. The machine work, black anodizing, and gasket fitment provides a level of fit and finish above that of the factory cast pieces while staying true to factory part for those wanting a billet part that looks as close to factory as possible. Machined in the USA right here in Momence, IL by our skilled CNC machinists. Kit includes pair of chain box covers, part numbers 9301051053RLN and 9301051066RLN. Don't forget to check out our matching billet chain boxes too! Anodize colors available: clear anodize (bright dip - looks like raw machined aluminum), matte clear anodize, black, blue, red, green, gold, orange, purple, copper, penny, or gunmetal. If purchasing multiple items with custom anodize finish, please call us first before placing an order as we can have multiple items anodized for the minimum batch charge. Learn More

Upgrade your Porsche VW Type 4 & Vanagon engine with a billet stainless magnetic drain plug (14 x 1.5mm) from LN Engineering and the Type 4 Store. Made in house at LN Engineering in Momence, IL, our USA made drain plug features a rare earth magnet and stainless construction. It's the finest drain plug money can buy. Includes one drain plug washer/gasket/seal (part number N 013 849 2). Fits Waterboxer (Wasserboxer) or Later Type 4: T2 Bay 1972-1979, T25/T3 1980-1991 with a 14 x 1.5mm drain plug. Also fits 2009-2015 Audi R8 models with the 5.2L V10 engine. Before ordering, please verify which drain plug your engine needs; some may require a 14 x 1.5mm drain plug while others use a 12 x 1.5mm (which we also manufacture under part number 021101195LN). Learn More

The LN Engineering N90813202LN Billet Stainless Steel Magnetic Drain Plug (14 x 22 x 1.5 mm) replaces OE part number N90813202. Features a powerful rare earth magnet and includes one drain plug seal/washer/gasket (uses 14 x 20 x 1.5mm Mercedes-Benz part number 007603-014106). Proudly made in the USA. Please check the table below for fitment. Learn More

Changing the gearbox/differential/transmission oil/fluid on your Porsche, VW, or Audi? Upgrade to one of our USA-Made stainless steel magnetic drain plugs featuring a rare earth magnet. The LN Engineering N91059701LN Billet Stainless Steel Magnetic Drain Plug (12 x 1.5 mm) replaces OE part number N91059701. Features a powerful rare earth magnet. Fits 2009+ 987.2/981/718 Manual Transmission/Gearbox as well as many other Porsche, VW, and Audi transmissions. Also referred to by Porsche as an Engine Expansion Plug or Screw Plug and crosses with Porsche part number 90021900130 and N10037106. Please check the table below for more fitment options. Learn More

LN Engineering Billet Aluminum Cylinder Hold Down Nut featuring replaceable Delrin inserts. Threads onto your Porsche engine's 10mm head studs to hold your Porsche 911, 914-6, and 356/912 cylinders in place until you fit the cylinder heads. Sold as a set of 6 including a six replacement Delrin inserts. Features knurled ends and a matte clear anodized finish. Designed to work with ARP cylinder head studs with 10 x 1.5mm threads. Learn More