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Meritor: M83135
Donaldson: P550414
One spring per cab pivot point — replace in pairs to keep cab height even
Rough idle or surging
PAI Industries MDV-4225 Fuel Tank Shutoff Valve – Mack Trucks Detroit Diesel Meritor: M83135PAI MDV 4225 is a manual fuel tank shutoff valve for Mack heavy duty trucks, with a 1 2 in NPT pipe inlet and 5 8 in tube outlet. Used to isolate fuel flow at a saddle tank or in line for maintenance, tank to tank balancing, or filter changes. Direct replacement for Mack 61AX113, 20786947, and 6635 V412F108. Made in USA. Signs You Need a New Fuel Shutoff Valve Valve handle stiff, seized, or hard to turn Fuel weeping from the valve body or stem Valve
