We supply the Hand brake valve ,Relay valve ,Foot brake valve , Trailer control valve, Four circuit protectione valve , unloader valve , leveling valve by superior quality with competitive price. Product name Foot Brake Valve ( Basic ) OEM NO. 277863 Vehicle applications Mack Brand name Meicely Material Aluminum alloy, Zinc alloyn Color Silver Ports NPT 3/8" Exhaust Flap Other OE No. Car Model OE No. Foot Brake Valve 277863 286171 Foot Brake Valve 277863 4613152580 Foot Brake Valve 277863 4613152640