HPS Performance Products HPS High Temperature Reinforced Silicone Coolant Bypass Caps, Black/Blue/Red Crankshafts Factory-spec mounting - Direct bolt-in

Factory-spec mounting - Direct bolt-in without frame modifications

Black powdercoat finish resists corrosion

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HPS Performance Products HPS High Temperature Reinforced Silicone Coolant Bypass Caps, Black/Blue/Red Crankshafts Factory-spec mounting - Direct bolt-inDont let a flimsy rubber cap become the weak link in your engines cooling system. HPS High Temp Reinforced Silicone Caps are purpose built for enthusiasts who demand reliability. These caps are engineered to withstand extreme heat and pressure where ordinary vacuum caps would fail, providing a permanent, worry free solution for sealing coolant bypass and vacuum ports. Each HPS coolant cap is constructed just like our performance radiator hoses made