Feuling Parts 09280107 Hydraulic liftersRef : FELG00268A / 09280107

Manufacturer Ref: 4050ST — Brand: FEULING PARTS. Race Series® hydraulic lifters with a short stroke, designed for engines subjected to high cam lifts and high spring pressures. Ideal for riders seeking more stable timing on vintage, roadster, trail, touring, or sports machines.

This lifter reduces the total stroke to 0.115" (compared to 0.200" for a standard lifter), limiting valve float and oil aeration when the cams are at high lift. Machined from a robust steel body, it incorporates a needle roller bearing and a chrome-plated shaft to reduce friction and extend lifespan. Developed on a Spin‑Tron bench and validated on track, this lifter prioritises high RPM timing stability while maintaining quiet operation.

• Reduced total stroke: 0.115"
• Recommended preload: 0.065" to 0.070" (thermal expansion places the service preload at ~half the stroke)
• High-flow disc check valve for better responsiveness
• Compatibility: Feuling® HP+® or Race Series® pumps recommended; advised for spring seats > 185 lb (84 kg)
• Manufactured in: United States

Workshop tips: manually fill each lifter before installation to purge air (Feuling recommends a fluid oil type ATF in spray). Pairing with a high-flow oil pump improves the silence and performance of the lifters both on the road and in drag.