S&; S POLISHED BILLET OIL PUMPS FOR HARLEY DAVIDSON SHOVELHEAD EVOLUTION 1973/1999
WEIGHT: 3.16- MACHINED WITH AN OIL PRESSURE RELIEF BLEED OFF VALVE TO MAINTAIN CONSISTENT OIL PRESSURE FROM THE ENGINE IS STARTED TO THE TIME IT IS SHUT OFF
- OIL PRESSURE REGULATION BYPASS ROUTE ALLOWS EXCESS OIL NOT USED BY THE ENGINE TO RETURN DIRECTLY TO THE SUPPLY SIDE OF THE PUMP , REDUCING FOAMING AND CAVITATION
- NO THICKER THAN A STOCK PUMP
- INCREASED SCAVENGING CAPACITY RESULTS IN:
- LESS OIL IN THE CRANKSCASE
- LESS OIL CARRYOVER
- EQUIPPED WITH A STOCK LENGTH OIL PUMP DRIVE SHAFT
S & S
POLISHED BILLET ALUMINUM OIL PUMP
FITS SHOVELHEAD & EVOLUTION 1973/1991
REPLACES HD# 26190-73
BY: S&S CYCLE INC