Description ALLIS CHALMERS: Valve lock. 16 used in 175 CID 4 cylinder diesel engine; 24 used in 262 CID 6 cylinder diesel engine. MASSEY FERGUSON: Lock, intake & exhaust valve, key type (2 used per valve). Replaces 74356080 This item is a suitable alternative for the following: 1004512M1, 1004512M91, 74356080, 46209D