Moroso Air/Oil Separator Polished - Twin Cam with Vance & Hines VO2 Air Cleaner - Harley-Davidson
About Moroso
Moroso has manufactured racing components in Connecticut since 1968, supplying engine, chassis and shop products developed through motorsport.
This polished Moroso Air/Oil Separator is precisely engineered for Twin Cam Harley-Davidson engines already equipped with a Vance & Hines VO2 air cleaner. It's designed to plumb inline, effectively capturing crankcase vapors, oil mist, and condensation before they can enter your engine's intake.
Why riders pick this
- Specifically designed for Vance & Hines VO2 air cleaners
- Polished finish enhances engine bay aesthetics
- Filters harmful crankcase vapors and oil mist
- Easy-to-clean two-piece canister design
- Closed-loop system for responsible oil containment
Maintaining a clean intake system is crucial for optimal performance and longevity on your Twin Cam. This Moroso Air/Oil Separator ensures that your engine breathes cleaner air by preventing oil and carbon buildup on pistons, valves, and the throttle body. By filtering out these contaminants, you're not just keeping things tidy; you're also helping to reduce the potential for detonation and improving overall engine efficiency.
Optimized for Vance & Hines VO2
- Filters crankcase vapors, unburnt fuel, and moisture before intake re-entry
- Two-piece canister design unscrews for easy and thorough cleaning
- Does not vent to atmosphere—contains oil within the canister, not on your bike or the ground
- Reduces detonation and knock by eliminating contaminated intake charges
- Proudly made in the U.S.A.
A Cleaner Engine for Better Rides
If you've invested in a Vance & Hines VO2 air cleaner for your Twin Cam, this polished Moroso Air/Oil Separator is the logical next step. It complements your existing intake upgrade by ensuring that the air entering your engine is as pure as possible. This translates to a more reliable, better-performing V-twin, with less long-term wear and tear on critical internal components.
Specifications
- Brand: Moroso
- Manufacturer Part #: 85716
- UPC: 84663857164
- Dimensions: 9 in L × 6 in W × 5 in H
- Weight: 2 lbs
Common questions
How often do I need to clean the separator?
We recommend checking the canister at every oil change. Empty and clean it when oil accumulates inside, typically every 3,000–5,000 miles, though this can vary depending on riding conditions and engine health.
Does this work with other air cleaners?
This unit is specifically designed for Twin Cam Harley-Davidson engines equipped with Vance & Hines VO2 air cleaners. Compatibility with other aftermarket air cleaners is not guaranteed.
What is the main advantage of this separator?
The main advantage is a cleaner intake tract and combustion chamber, which reduces carbon buildup, minimizes detonation, and extends the life of your engine components by preventing oil and moisture from re-entering the intake.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Moroso |
| TYPE | Intake/Carb/Fuel System |
| SKU | 82-9502 |
| WEIGHT | 2.0 lb |
