J&L Oil Separator

2012–2017 Jeep Wrangler JK 3.6L V6

Part #: 3064D-B

Overview

The J&L Black Anodized Oil Separator is a precision-engineered solution designed to enhance the performance and durability of your 2012–2017 Jeep Wrangler JK equipped with the 3.6L V6 engine. By effectively managing crankcase vapors, this oil separator prevents oil vapor buildup in the intake system, which can degrade fuel octane and cause harmful engine deposits over time. While especially beneficial for forced induction engines, this product is equally valuable for naturally aspirated setups like the Jeep’s 3.6L, helping maintain cleaner intake components and supporting consistent engine efficiency.

Specifically designed for the passenger side of the engine bay, the J&L Oil Separator captures and condenses oil vapors before they reach the intake manifold. This results in improved throttle response, preserved fuel quality, and long-term engine health—making it an essential upgrade for Jeep enthusiasts who demand reliability and performance in daily driving and off-road conditions.

Key Features

Incorporating advanced filtration technology and robust construction, the J&L Oil Separator offers superior crankcase vapor management. Key features include:

• Multistage filtration system combining a fine mesh stainless steel screen with a thick aluminum honeycomb filter for exceptional oil vapor separation
• Solid billet aluminum construction with a black anodized finish for enhanced corrosion resistance and durability
• Knurled base tank design allowing easy removal and draining of collected oil without special tools
• O-ring seal ensuring leak-free operation and maintaining system integrity
• 3-ounce fluid capacity to support extended maintenance intervals
• Quick-connect PCV fittings for straightforward installation and secure hose connections
• Direct fit for the passenger side PCV system on 2012–2017 Jeep Wrangler JK 3.6L engines
• Helps prevent oil contamination in the intake tract, preserving fuel octane and optimizing engine efficiency

Construction & Design

Crafted from solid billet aluminum, the J&L Oil Separator is built to endure the demands of both daily driving and rugged off-road use. The black anodized finish not only provides a sleek, professional appearance but also offers superior protection against corrosion and wear. Inside, a fine stainless steel mesh screen captures the smallest oil vapors, allowing them to coalesce and drain into the reservoir below. This is complemented by a 1/2" thick, 1/16" aluminum honeycomb filter that further enlarges vapor droplets, ensuring only clean air returns to the intake manifold.

The knurled base design facilitates quick and easy maintenance, enabling users to drain collected oil without the need for specialized tools. An O-ring seal guarantees a tight, leak-free fit, maintaining the integrity of the PCV system under all operating conditions.

Installation & Fitment

The J&L Oil Separator is engineered as a direct replacement for the passenger side PCV system on Jeep Wrangler JK models from 2012 through 2017 equipped with the 3.6L V6 engine. Installation is simple and requires no modifications to existing intake or engine components. Quick-connect fittings streamline hose attachment and removal, making this upgrade accessible for both professional installers and DIY enthusiasts. Routine maintenance involves draining the collected oil every 2,000 to 3,000 miles to maintain optimal separator performance.

What's Included

• J&L Black Anodized Oil Separator (Passenger Side)
• Pre-installed O-ring seal
• Quick-connect PCV fittings
• Installation instructions

Ideal For

This oil separator is ideal for Jeep Wrangler JK owners who want to maintain engine cleanliness and performance, especially those who frequently drive in demanding environments or have modified their vehicles. It is highly recommended for enthusiasts seeking to prevent intake contamination, preserve fuel quality, and extend engine life without complicated modifications or extensive maintenance.

J&L Oil Separator Co. builds application-specific oil catch cans (air/oil separators) designed to trap blow-by vapors before they contaminate intake and intercooler plumbing. It’s a practical performance upgrade for boosted and high-output engines, helping reduce carbon/oil buildup and keep intake charge paths cleaner over time.