Will this rear heater core fit my 1986 Vanagon Westfalia with manual transmission?

Absolutely! The Rear Heater Core (product number: 867-819-121A) is designed to fit all 1983–1991 waterboxer engine Vanagons—this includes your 1986 Westfalia model, and it doesn’t matter if you have a manual or an automatic transmission. It’s also compatible with all Vanagon trim levels, so you’ll have no issues with fitment.

Do I need any special tools or skills to install this GoWesty rear heater core?

No special tools required! Most Vanagon owners report that this heater core is easy to install with basic hand tools, thanks to its direct-fit design. Clear instructions are included, and it’s made for straightforward replacement—so if you’re comfortable with basic DIY maintenance, you’ll be able to handle it. If you’re unsure, a professional mechanic can install it quickly too.

How does this heater core prevent leaks better than other brands?

This specific Rear Heater Core for Vanagon is built to tackle the most frequent issue with OEM and cheaper aftermarket cores: leaks that lead to wet interiors and poor heating. Manufactured by vetted aftermarket brands, the core is made with upgraded materials and improved sealing to keep your van warm and dry, even after years of use. Many customers highlight its leak-prevention as a key benefit in their 5-star reviews.

Is this rear heater core brand-name or OEM quality, and will the quality vary by batch?

While this is an aftermarket replacement (not OEM), GoWesty only sources heater cores from reputable manufacturers who meet strict quality standards. Brand may vary depending on availability, but every batch is quality-tested for durability. Customers consistently report excellent performance and reliability, regardless of brand. Rest assured, you’re getting a heater core that keeps your Vanagon running warm season after season.

How quickly will I get my heater core if I order from GoWesty, and is it covered by warranty?

Orders for this undefined rear heater core generally ship out promptly—most customers receive their parts within just a few days, as mentioned in their positive reviews. Each core comes with GoWesty’s standard warranty, giving you peace of mind with your purchase. If there’s ever an issue, their support team is known for quick and helpful responses. Order with confidence—you’ll be back on the road comfortably in no time!

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Rear Heater Core [Vanagon]

Product:	867-819-121A
Works With:	1983-1991
Manufacturer:	Quality Aftermarket
Restock ETA:
Availability:

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

Not all rear heater cores are created equal! Unlike other heater cores, which tend to leak, these will keep you warm and your van dry!

Brand may vary.

Fits: 83-91 waterboxer, except diesel.

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.

867-819-121A
867819121A

Rear Heater Core [Vanagon]

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Reference Numbers

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