Earl's Brake Booster Check Valve - 13/16 in Hose Barb Inlet - 1/2 in Hose Barb Outlet - Black 42030R Simpson's Garage Crew Shoe resists

Simpson's Garage Crew Shoe resists abrasion and provides traction and stability in an everyday work environment

The 10 Hole Top Air design directs airflow around the top of the helmet for comfort and onto the shield to reduce fogging

GM A-Body / F-Body / G-Body

1964-1974 Oldsmobile Vista Cruiser

1983-1986 Dodge Ram 50

Earl's Brake Booster Check Valve - 13/16 in Hose Barb Inlet - 1/2 in Hose Barb Outlet - Black 42030R Simpson's Garage Crew Shoe resistsThis 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: