Feuling Race Series Hydraulic Lifters - Harley Twin Cam & Milwaukee-Eight
About Feuling
Feuling Parts specializes in the internals that decide whether a big-inch V-twin lives or dies — oil pumps, cam plates, lifters, pushrods and camshafts. Its high-volume oil system components are a standard upgrade on high-mileage and high-output Twin Cam and Milwaukee-Eight engines.
Feuling Race Series hydraulic lifters are engineered to meet the extreme demands of performance V-twin engines running high-lift cams and aggressive valve spring pressures. Their design ensures consistent oil pressure and valvetrain stability, even at high RPMs.
Why riders pick this
- Steel body for exceptional durability
- Slower bleed-down rate for consistent oil pressure
- Maintains top-end oil flow at high RPM
- Reduces valve float and increases stability
- Dyno developed and track proven performance
- Ideal for high-lift cams and aggressive valve springs
When pushing your Harley-Davidson engine to its limits, the valvetrain is under immense stress. Feuling Race Series lifters are constructed from durable steel with a slower bleed-down rate, specifically designed to maintain crucial oil flow to the top end. This advanced engineering effectively combats valve float and promotes superior valvetrain stability, allowing your engine to perform reliably and consistently under the most demanding street and strip conditions.
Uncompromised Valvetrain Stability
- Robust steel body construction for maximum durability
- Slower bleed-down rate for sustained oil pressure
- Maintains top-end oil flow at high RPM
- Reduces valve float and enhances valvetrain stability
- Spin-Tron dyno developed and track proven
- Made in the U.S.A.
Performance You Can Trust
These Race Series lifters are an essential upgrade for any V-twin engine modified with large-lift cam profiles and increased valve spring pressures. Designed and manufactured in the U.S.A., Feuling delivers components built to last and perform. For optimal results, it is highly recommended to pair these lifters with a high-volume oil pump to ensure consistent lubrication and unlock the full potential of your performance engine.
Specifications
- Brand: Feuling
- Manufacturer Part #: 4018
- Length: 5 in
- Width: 6.2 in
- Height: 3.45 in
- Weight: 2.3 lbs
Common questions
What is the main difference between Race Series and standard Feuling lifters?
Race Series lifters feature a slower bleed-down rate and are specifically engineered for higher valve spring pressures and more aggressive cam profiles, beyond typical stock applications.
Do these lifters require a high-volume oil pump?
Feuling strongly recommends using a high-volume oil pump with these Race Series lifters to ensure adequate oil delivery and maximize their performance benefits, especially with aggressive cam setups.
Will these Race Series lifters fit my specific Harley-Davidson model?
These lifters are designed for a broad range of Harley-Davidson Twin Cam and Milwaukee-Eight models. Please confirm fitment for your specific year and engine type using our Shop by Bike tool before ordering.
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 | Feuling |
| TYPE | Engine |
| SKU | 811-04051 |
| WEIGHT | 2.3 lb |
