Jeep YJ Oil Catch Cans for Wrangler (1987-1995)

Blowby from the 4.2L and 2.5L engines pushes oily vapor back through the PCV system into the intake, and Jeep YJ Oil Catch Cans for Wrangler (1987-1995) intercept that vapor before it deposits on the carb or throttle body and builds into carbon over time. Catching blowby before it re-enters the intake keeps the induction system cleaner and preserves the throttle response and fuel metering that decades of deposits quietly degrade.

 

Can size and separator design affect how much the unit actually captures per drive, and a baffled can with a removable reservoir is worth the extra cost over a simple inline unit since the baffle pulls more contaminant from the vapor before it passes through and the removable reservoir makes draining straightforward. Routing the drain back to the engine rather than to atmosphere keeps the setup within emissions regulations in states where open-drain PCV modifications are checked at inspection.

 

Oil system health through Jeep YJ Oil Catch Cans for Wrangler (1987-1995) works alongside the rest of the YJ's engine build, and the full engine parts catalog for this generation is at Jeep YJ Engine Parts for Wrangler (1987-1995). Engine dressup and bay finishing work that complements the catch can install is at Jeep YJ Engine Dressup for Wrangler (1987-1995), and cold air intake options that help the YJ breathe cleaner air alongside the cleaner oil system are at Jeep YJ Cold Air Intakes & Air Filters for Wrangler (1987-1995).