Perrin Air Oil Separator

• 2019-2025 Subaru | Ascent
• 2020-2025 Subaru | Outback XT

The PERRIN Air Oil Separator removes oil vapor from crankcase gases before they reach the intake, helping reduce carbon buildup and protect engine performance on turbocharged Subaru Outback XT, Outback Wilderness, Legacy XT, and Ascent applications.

• Official fitment: 2020-2026 Subaru Outback XT, Outback Wilderness, Legacy XT, and Ascent; confirm the exact model year and trim before ordering.
• Internal swirl and impact surfaces separate oil from blow-by, then return separated oil to the engine instead of requiring frequent draining like a catch can.
• Coolant-heated billet aluminum body keeps the unit at operating temperature to reduce condensation and sludge.
• Vehicle-specific placement keeps the separator clear of compatible intercoolers, charge pipes, master-cylinder braces, and cold-air intakes.
• CNC-machined 6061-T6 aluminum components, ceramic-coated finish, durable aluminum hose fittings, and two stainless clamp styles are built for long-term service.
• Serviceable design opens with a single bolt for cleaning; estimated DIY installation time is 180 minutes.
• Off-road use only; in California, use is limited to racing vehicles never used on public roads. Review local requirements before installation.
• References: official PERRIN product page, PERRIN instructions database, and PERRIN warranty information.

Review our Shipping Policy for delivery details, shipping costs and exclusions.

• Perrin MFG Warranty

Eligibility, exclusions, applicable fees and exceptions are detailed in our Return Policy. Restrictions apply to special-order and custom products.

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