K&N 81-0816 Air-Oil Separator for 18-24 Jeep Wrangler/20-24 Jeep Gladiator 3.6L

Vehicle Fitment

• 2018-2024 Jeep Wrangler (JL) 3.6 L V6, RWD/4WD
• 2020-2024 Jeep Gladiator (JT) 3.6 L V6, 4WD

Features

• Captures crankcase blow-by oil vapors before they enter the intake tract
• Helps prevent power loss and engine damage caused by oil contamination
• Large 6 oz (~0.18 L) capacity reservoir for extended service intervals
• Quick bolt-on installation in ~30 minutes using factory-style hose connections
• Direct-fit design engineered specifically for the listed Jeep applications (no universal kit)
• Durable aluminum body with black finish and premium hoses for longevity
• Backed by a lifetime limited warranty for performance use
• Helps maintain cleaner intake manifold and throttle-body surfaces under off-road or performance driving conditions

Specifications

• Reservoir capacity: 6 oz (~0.18 L)
• Tank material: Aluminum, black finish
• Approximate weight: 2.6 lb (≈1.2 kg)
• Mounts via factory PCV/hose routing - no drilling required
• Street legal in all US states **except California** (Not legal for sale or use in California on any pollution-controlled motor vehicle)

Included Components

• 1x Oil-Separator reservoir assembly
• 2x Hose Clamps
• Premium OEM-style hose fittings (pre-installed)
• Installation instructions and mounting hardware

Product Description

The K&N 81-0816 Air-Oil Separator is designed for the 3.6 L V6 engine in the Jeep Wrangler (JL) from 2018 through 2024 and the Jeep Gladiator (JT) from 2020 through 2024. By capturing crankcase blow-by vapors and preventing oil-laden gases from entering the intake tract, it protects the throttle body, intake surfaces, and helps maintain engine performance and longevity - especially under off-road, high-load or extended duty use.

This direct-fit unit installs easily in about 30 minutes using factory hose connections and mounting locations - no cutting or welding required. The generous 6-ounce reservoir reduces maintenance frequency, and the robust aluminum construction ensures durability under demanding conditions. Ideal for Jeep owners who engage in off-roading, towing, or performance driving and want to maintain clean intake operation and consistent engine health.

Please note: Fitment is confirmed through 2024 for the listed vehicles. Coverage for 2025 is unconfirmed at time of listing. Ensure compatibility with your engine (3.6 L V6) and drivetrain (RWD/4WD/4WD) before purchase. Also note: this product is **not legal for sale or use in California** on vehicles with stock emissions control systems.