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