GMC Sierra 1500 Oil Separator - J&L - 3.0 PCV Side - Clear Anodized - 14-18. A direct-fit oil separator for the 2014–2018 Sierra 1500 4.3L V6 that reduces oil vapor from entering the intake while retaining factory PCV routing and quick-connect fittings.

Machined from solid billet aluminum with a clear anodized finish, this J&L 3.0 unit uses a multi-stage filtration system to capture fine oil vapors before they reach the intake tract. A stainless steel fine mesh traps the smallest droplets, which then coalesce on a 1/2" thick 1/16" aluminum honeycomb stage and drain to the removable sump. The knurled base and O-ring seal make periodic draining and resealing straightforward. The 3 oz capacity is sized for crankcase ventilation systems; routine draining every 2,000–3,000 miles prevents overflow and maintains performance of the PCV system. This is a durable, serviceable component aimed at enthusiasts who want reliable control of oil blow-by without altering stock routing.

Features

• Direct-fit for 2014–2018 GMC Sierra 1500 4.3L V6 (PCV side)
• Solid billet aluminum construction, clear anodized
• Multi-stage filtration: stainless mesh + honeycomb collector
• 3 oz removable sump with knurled base and O-ring seal
• Quick-connect PCV fittings for easy installation

If you have questions or want help confirming fitment, call us directly. We have two installation and customization locations: Austin, Texas and the Los Angeles, California area where we install on premises. 512-982-9393 (TX) | 562-981-6800 (CA)

If you're considering multiple items, contact us for shipping discounts. We install on premises at both locations and can assist with fitment and customization during your visit.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov