Earl's Brake Booster Check Valve - 13/16 in Hose Barb Inlet - 1/2 in Hose Barb Outlet - Black 89401A Short water pump style includes

Short water pump style includes Allen screws to attach nose cone while long water pump nose cone uses the bolts that are included with the pulley

1971-1972 Fargo B300 Van

1975-1975 GMC Sprint

1/8' NPT gauge port

1986-1986 Chevrolet K10

Earl's Brake Booster Check Valve - 13/16 in Hose Barb Inlet - 1/2 in Hose Barb Outlet - Black 89401A Short water pump style includesThis check valve is for use with naturally aspirated engines only (not for use w Turbocharged & Supercharged engines). Machined from Billet 6061 T6 Aluminum Anodized Black or Clear for Superior Corrosion Protection Choose from 6AN Male, 3 8" Barb, or 1 2" Barb for Vacuum Hose Fits Brake Boosters w 13 16" Hole for Grommet 1 2" Barb Fits Most GM LS Engines, 3 8" Barb Fits Most Other Domestic & Import Engines, 6AN Male for Use w AN Hose Valve Material: