Will this Coolant Hose fit my 1986-91 Syncro Vanagon exactly like the original?

Yes, this hose is made as an exact replacement for the upper passenger side crossover pipe to radiator return pipe on all 1986-91 Syncro Waterboxer models. Its fit and length match the original VW part, so you can install it with confidence, whether your Syncro has a manual or automatic transmission.

How durable is this hose compared to silicone alternatives, and what material is it made from?

This Coolant Hose is crafted from high-quality rubber, just like the original VW part. GoWesty chose rubber because it matches the OEM's proven performance and reliability—there's no real-world benefit to silicone hoses for this application, especially given the higher price. With this rubber replacement, you're getting dependable performance and long-lasting value at a more affordable cost.

What if the hose doesn’t fit or I need to return it—what’s your return policy?

If for any reason the hose isn’t right for your Syncro or you need a return, you can count on GoWesty’s hassle-free return policy. Just save your order information and be sure the hose is unused and in its original condition. We’re committed to making sure you get the perfect fit and performance for your vehicle, so shop with confidence!

Thumbnail of Coolant hose on white background

Crossover Pipe to Radiator Coolant Hose [Syncro]

Product:	251-121-062-AM
Works With:	1986-1991
Manufacturer:	Quality Aftermarket
Restock ETA:
Availability:

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Proposition 65: This product may contain chemicals known to the state of California to cause cancer, birth defects, or other reproductive harm.

Here is the hose from the Syncro crossover pipe (upper passenger side) to the long radiator return pipe. What once was lost... now is found!

Fits: 1986-91 Syncro Waterboxer

A note on silicone hoses:GoWesty does not offer a silicone version of this hose. If a standard rubber hose is not available, we will at times bring in a silicone substitute. However, there is no evidence that indicates the more expensive silicone material/manufacturing method is superior in any way. This hose is an exact reproduction of the original VW formed hose, which was known to last many decades and are a fraction is the price as compared to a silicone version of the same thing.

Vanagon cooling system diagram with labeled hoses, pipes, and radiator components

Reference numbers can be OE part numbers, superseded part numbers, and compatible part numbers. We provide this information to help ensure you're getting the right part for your needs.