Feuling 4017ST

FEULING RACE SERIES SHORT travel hydraulic lifters,

New revolutionary design with 0.115 of total travel vs. a full travel lifter with 0.200. These hydraulic lifters will increase camshaflt lift and RPM by decreasing valve float and valve-train harmonics while maintaining a quiet engine. The travel reduction reduces the amount of pushrod plunge and oil that is required to fill the inside of the lifter which reduces oil aeration inside the lifter on steep, fast action high lift camshaft lobes. When oil aeration is present inside the lifter, the pushrod seat drops when the lifter rolls onto the front cam lobe ramp after squeezing the aeration down thus creating a noisy poor performing lifter.

Feuling short travel lifters should be set with 0.065 - 0.070 of pre-load and with the normal engine growth from heat will put the operating lifter pre load at or around half travel.

Machined from a steel body and designed to exceed the needs of large lift camshafts and higher valve spring pressures with a slower bleed down rate. RACE SERIES lifters maintain proper oil flow to the top end, increase engine RPM, valve-train stability, decreasing valve float promoting maximum valve lift.

Feuling recommends Race Series lifters for engines running higher valve spring seat pressures. FEULING recommends the use of a high volume oil pump which will result in quieter, better performing lifters. Race Series lifters are compatible with either FEULING HP+ or Race Series oil pumps and are designed for use with both street and strip engines. Spin-Tron dyno developed and track proven, Made in the USA.

-Precision ground needle roller bearing with high chromium steel axle for long life and minimal friction
-Cold forged extra long piston, precision ground and fitted for controlled leak down and pump up
-High flow disc style quick reacting check valve for better reaction at higher RPM.
-Available in oversized diameters - Case Savers! #4018ST or #4019ST
-Recommended for engines with higher valvespring pressures and/or aggressive camshafts.
-Relief machined into the lower body to clear the flange on the camshaft front exhaust lobe on grinds using smaller than stock base circles
-Sold in sets of 4 (See 4017ST-1 for singles)
-Made in the U.S.A.

*FEULING RECOMMENDS PUMPING UP EACH LIFTER BY HAND DURING INSTALLATION, TO REMOVE ALL AIR AND PROVIDE A FULLY PUMPED UP LIFTER. USE OF A THIN WEIGHT OIL LIKE ATF IN A SQUIRT CAN WORKS WELL. SEE TOOL #9005

*PROPER LIFTER BORE TO LIFTER CLEARANCE IS CRUCIAL FOR OPERATION. SEE TOOL #9004

FITS:

Milwaukee Eight 17-26, T/C 99 - 17, XL And Buell 00 - 22, Performance upgrade, drop in replacement, set of 4

COUNTRY OF ORIGIN:

USA

Disclaimer: Qualified Manufacturer Declared Replacement Part means any aftermarket part intended to replace an original equipment emissions related part and which is functionally identical to the original equipment part in all respects which in any way affect emissions (including durability), or a consolidated part, that has been evaluated and declared by the manufacturer to meet this definition and carry this categorization and designation label. This manufacturer has declared in writing that it has documentation, based upon sound engineering judgment, indicating the replacement part does not reduce the effectiveness of any required emission control device and it does not cause the modified vehicle/engine/equipment to exceed applicable emissions standards for that make/model/year fitment(s) advertised.

FITMENT DISCLAIMER

Fitment information is provided as a general reference only and is not guaranteed for any motorcycle, whether stock or modified. Compatibility may vary by year, model, and individual configuration.

Customers are responsible for verifying fitment prior to purchase. House of Harley-Davidson assumes no liability for purchases made based on incorrect or unverified fitment information.

Please contact our Parts Department with any questions before ordering at 414-282-2211