TeraFlex 4839200 Crankcase Vent System Kit for Jeep Wrangler JL/JT Gladiator 3.6L

The TeraFlex Crankcase Vent System Kit (CVS) is an essential upgrade for 2018+ Jeep Wrangler JL and JT Gladiator models equipped with the 3.6-liter Pentastar V-6 engine. This system prevents engine oil from being drawn into the intake manifold by engine vacuum during extreme off-road inclines, protecting your engine from oil consumption, exhaust smoke, and potential hydro-lock damage.

On steep inclines, engine oil naturally flows to the rear of the engine and valve covers. At extreme angles, the factory PCV system allows engine vacuum to pull oil through the PCV valve and into the intake, where it enters the combustion chamber. This causes blue exhaust smoke from burning oil and, in severe cases, can lead to hydro-locking and serious internal engine damage.

The TeraFlex CVS solves this problem by adding a second PCV valve to the front of the engine via an oil fill cap adapter and T-fitting. This dual-valve configuration ensures that only air can enter the crankcase vent system, regardless of engine orientation while off-roading. The integrated Ball Check Valve System actively cuts the flow of oil, keeping it away from the intake under all operating conditions.

Kit Includes:

• Oil fill cap to crankcase vent adapter
• PCV valve
• Ball check valve system
• Vent hoses
• All necessary mounting hardware

Compatibility:

• 2018+ Jeep Wrangler JL (2-door and 4-door Unlimited)
• 2020+ Jeep Gladiator JT (pickup)
• 3.6-liter Pentastar V-6 engine ONLY
• Left-hand drive models ONLY

Important Notes:

• Does NOT fit right-hand drive models
• Does NOT fit 2.0-liter turbo I-4, 3.0-liter EcoDiesel V-6, or 392/6.4-liter Hemi V-8 engines