Moroso Air/Oil Separator - Twin CAM W/V&h Vo2 AIR Cleaner Polished — Harley-Davidson (1999-2017)

Moroso air-oil separator for Twin Cam Harley with Vance & Hines VO2 air cleaner. Plumbs inline to capture crankcase vapors, oil mist, and condensation before they enter the intake, keeping your engine cleaner and reducing carbon buildup on pistons, valves, and throttle body.

Features

• Filters crankcase vapors, unburnt fuel, and moisture before re-entry to intake
• Two-piece canister design unscrews for easy cleaning and service
• Does not vent to atmosphere—contains oil in canister, not on bike or ground
• Reduces detonation and knock from contaminated intake charge
• Made in the U.S.A.

Specifications

• Brand: Moroso
• Manufacturer Part #: 85716
• UPC: 84663857164
• Dimensions: 9 in L × 6 in W × 5 in H
• Weight: 2 lbs

Fitment

Fits Twin Cam Harley-Davidson engines equipped with Vance & Hines VO2 air cleaner.

Frequently Asked Questions

How often do I need to clean the separator?

Check the canister every oil change. Empty and clean it when oil accumulates inside, typically every 3,000–5,000 miles depending on riding conditions.

Does this work with other air cleaners?

This unit is specifically designed for Vance & Hines VO2 air cleaner fitment. Other air cleaner makes may not seal properly.

Will this improve performance?

By keeping crankcase vapors out of the intake, you reduce detonation and carbon deposit buildup, which can improve throttle response and engine longevity.

Does it vent to atmosphere like other catch cans?

No — Moroso's design contains all vapors and oil in the canister. Nothing vents to the air or drips on your bike.