(1) New High Quality OEM Spec Mercury Aftermarket Replacement Head Gasket. Fits The Following Mercury Models: For MERCURY Outboard 150 HP Mercury Mercruiser 150 HP XR-2 MARATHON MAGNUM (V6) 150 HP XR-2 MARATHON MAGNUM (V-6) (1978-1985) - V-150 Marathon 150 HP XR-2 MARATHON MAGNUM (V-6) (1978-1985) - V-150 Magnum 150 HP XR-2 MARATHON MAGNUM (V-6) (1978-1985) - V-150-XR-2 150 HP XR-2 MARATHON MAGNUM (V-6) (1978-1985) - V-1500 150 HP XR-2 MARATHON MAGNUM (V-6) (1978-1985) - V-150 Work 150 HP XR-2 MARATHON MAGNUM (V-6) (1978-1985) - V-150 Work