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Subaru/Vanagon 4 cyl. Conversion DIY Kit
Subaru/Vanagon 4 cyl. Conversion Kit

Starting at $3,076.29

Product Code: RMW-SKIT4G

Vehicle Information

Van Transmission*:

Subaru Donor Engine*:

Kit Options

Coolant Pipes:

Coolant Expansion Tank:

Power Steering (Required Selection)*:

Oil Pan:

Throttle Control (Required)*:

Vehicle Speed Sensor:

Wiring Harness Conversion Service:

Conversion Air Intake (Required)*:

Add MAF Adapter

2.5L MAF Adapter:

Exhaust Options

Exhaust System*:

Description California Prop 65 Warning

Please note: Conversion kits are a custom order and can take 3-5 weeks before ready to ship complete.

A core charge of $175.00 will be authorized until the return of a rebuildable reverse coolant manifold. Cores must be returned within 90 days of the date of order. Please include a copy of your original invoice with your return. At this time, we can only accept manifold cores from 1996-2004 donor cars.

The Rocky Mountain Westy Subaru Charger Kit is a proven, straightforward solution for converting your Vanagon to a powerful and reliable Subaru power. We were one of the first do-it-yourself kits on the market and, with over 500 conversions released into the wild, we've honed our parts and processes to offer a streamlined conversion experience. We manufacture the vast majority of the conversion parts at our state-of-the-art fabrication shop here in Fort Collins, CO. Parts are jig-welded for a perfect fit every time.

Our kit is the most complete on the market: from custom intake to a full stainless steel exhaust and everything in between. It comes with a comprehensive manual that details the step by step procedures to accomplish the conversion. We offer hundreds of additional parts at discounted pricing when ordered with your conversion kit. Gone are the days of buying from multiple vendors only to find out that your components are not compatible. So go ahead and get your Vanagon the present you have both been dreaming of.

In addition to the best parts on the market, Rocky Mountain Westy is proud of our long tradition of complete customer support. At any point in the conversion process, from contemplating your initial purchase to the after-conversion set-up, feel free to
contact us with specific questions. Our reviews speak for themselves!

The most complete conversion kit on the market! Convert your Volkswagen Vanagon to a Subaru 2.2 L or 2.5 L motor and gain additional horsepower and dependability of a modern engine.

A power plant conversion presents the perfect opportunity to upgrade other essential components. For instance, when you have the Subaru motor out, why not take a little extra time to renew the timing belt and water pump? With the engine out of your Vanagon, why not tackle those CV joint boots or drop the fuel tank to add RMW coolant pipes? How about a fuel tank reseal kit? To help you get the best restoration bang for your buck, RMW is now offering a 10% discount on various products associated with the conversion when ordered with the kit.

Please note: We are continually upgrading our parts and instructions. The image above may not reflect the actual parts you will receive. Rest assured that it only gets better.

This kit directly supports the 2.2L 1990-2000 and the 2.5L 2000-04 EJ series SOHC motors. Please email if your motor is not within these guidelines. Although 1996-2000 DOHC motors can be used with success, there will be additional modifications that you will need to make. Please let us know if you have a DOHC motor so that we may make adjustments to the components of your kit before it ships.

Note: If you plan to convert to a Subaru transmission when you repower your Van, there are several items in this kit that will not work for you. We can work with you to eliminate these components and design a kit for
your specific needs.
Aircooled Vanagons will require the customer to source the necessary cooling system components. Please let us know if you are converting an aircooled Vanagon.

Vanagons using a diesel transmission will need to source the correct 091-002 bell-housing as our kit will not work with the diesel specific bell-housing.

Feel free to email us with any questions you may have regarding the conversion process at support@vancafe.com. We love what we do and can help you design your perfect Vanagon.

If you live in Colorado, you must use our Colorado conversion kit to satisfy emissions regulations. You can find it here:

Average Customer Review: Average Customer Review: 5 of 5 5 of 5 Total Reviews: 32 Write a review.

  1 of 1 people found the following review helpful:
5 of 5 Excellent kit! Very happy customer. April 6, 2021
Reviewer: Rob Alumbaugh from Logan, UT United States  
Very complete and excellent quality.

I'm not a 5-stars kind of reviewer, there is always something that can be improved.  I'll give this kit a 4.75.  The very few problems I encountered were easily remedied.  If I was confused about how to perform an operation the manual quickly guided me.  If still confused about a particular Alex and the team were there to quickly help me sort it.

I was actually surprised how quick and easy the actual mounting of the engine was.   When ready, follow the manual and the engine will be sitting pretty in 2-3 hrs.

The manual could use some updating and a few better images but these are minor comments.

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  1 of 2 people found the following review helpful:
4 of 5 March 22, 2021
Reviewer: daryl Lang from Hadley, PA United States  
Everything thing went well except. Screws for water duct too long. Had to purchase local. One muffler clamp was defective.  When completely closed it measured 2 3/16"  for a 2 inch pipe!   Instructions are ok but I would highly suggest bom for each step, list of require tools for each step and better graphics instead of photos for each step or page .  I worked for vw manufacturing for 10 years and we used a pdm. This also included torque like yours. Also worked as a quality manager manufacturing engineer for 30 years  . Yours is a good start but you need someone who has more experience writing technical instructions.  Yours required a certain level of intuition to use. Packaging and labeling perfect.

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  2 of 2 people found the following review helpful:
5 of 5 RMW Conversion Kit February 17, 2021
Reviewer: David from Grand Junction, CO United States  
After years of nursing my WBXer, and gradually tiring of its lack of power (and reliability), I finally pulled the trigger on conversion. I knew that I needed to be involved in the process so that I could service it going forward. My research, and reading, always led me back to RMW, and with the project complete, I can say without reservation that I would do it again. Alex Nunke was a patient, and always helpful resource at RMW, and repeatedly clarified issues for me. Highly recommend this group!

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  1 of 1 people found the following review helpful:
5 of 5 amazing conversion kit June 24, 2020
Reviewer: mo mohsen from Stouffville, ON Canada  
I've never done anything like this before, talked to a couple of people that have previously used RMW conversion Kits, and gave me the confidence to start mine. The instructions were very clear and easy to follow. I had couple of questions in regards to 06+ EJ253 motor, Alex and the team were quick at finding the answers for me. Overall highly recommend this kit.

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  0 of 0 people found the following review helpful:
5 of 5 March 17, 2020
Reviewer: Fred Vauthier from Edgewater, MD United States  

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This item also appears in the following categories:

RMW Products > Vanagon Subaru Conversions > Conversion Kits