Pulley Leak Fix Kit [All Waterboxer]

Oil drip under your Vanagon just in front of your muffler? Don’t blame the oil pump quite yet.

On waterboxer engines, leaks at the rear end are often mistaken for a bad oil pump—when, in reality, the real culprit is usually the sealing surface on the V-belt pulley just above it. Over time, that seal’s mating surface on your 30+-year-old pulley wears down, and simply replacing the seal often won’t fix the leak.

Here’s the smart fix: Our precision stainless steel sleeve. It presses right over your existing V-belt pulley flange surface, instantly restoring a perfect sealing surface—just like new. We install these on every engine we build, and before we did, about 1 in 10 engines would develop a pulley seal leak. Since using these sleeves? Zero leaks.

• Stops leaks at the source – no more messy driveway spots.

• Saves big on labor – avoids unnecessary oil pump replacement.

• Built to last – durable stainless steel sealing surface for longevity.

Fits: All 1983-91 Vanagon Waterboxer - 2WD & Syncro*

*Note: If you have a Syncro, your pulley might have a factory-installed sleeve and special seal that goes with it. If so, you will have to remove the existing sleeve and also replace the seal. Regardless, it’s a good idea to replace the seal and O-ring while you are in there anyway. Check out our related items, which include these parts as well as our nifty flywheel locking tool.

GoWesty’s got your back—and the back end of your engine.