Fuel Cap

Find New OEM fuel tank caps for GM vehicles. Our factory-original ACDelco fuel caps are sourced from GM surplus — the exact thread pitch, sealing gasket material, and pressure/vacuum relief valve setting for your vehicle's evaporative emissions system.

The fuel cap is an integral component of your vehicle's EVAP system. A cap with incorrect venting characteristics can trigger P0442 and P0455 fault codes, cause false fuel gauge readings, and allow fuel vapors to escape. An OEM cap seals and vents exactly as your vehicle's EVAP system requires.

Verify your vehicle's fuel cap thread size and tether configuration before ordering.