SWITCH-VALVE, Hydraulic Brake Combo/MonitOring Valve diagram Lt Truck GMC Sierra 2500HD Crew Cab - 43 Bodystyle (4WD)

PNCPart codeTitleQuantity
1 21998447  VALVE,BRK COMB(MATING CONN USE 12101857)(ACDelco #21998447) 01
2 21998448  VALVE,BRK COMB(INCLS SWITCH; CONN USE 12101857 2-WAY W/LEADS)(ACDelco #21998448) 01
3 21998449  VALVE,BRK COMB 01
4 21998450  VALVE,BRK COMB(INCLS BRKT & SWITCH)(ACDelco #21998450) 01