MV-3 Control Module Valve, 3/8in PTC Auxiliary Port Part number: 802541E OE MFG: HALDEX COMMERCIAL VEHICLE SYSTEMS OEM Reference: KN20619 Cross Reference: FREIGHTLINER : TDARKN20619; HALDEX : KN20619, N4400BA, N4400EL; MACK : 5396-KN20619; MERITOR : RKN20619; VOLVO : 20560009, 85123170, 85123221; OTHER : FN18070D | AUTOMANN : 170.KN20619; PAI : 802541 Product Class: Air Valves & Kits The PAI 802541E is an MV-3 control module valve with a 3/8-inch PTC auxiliary port, identified by Haldex Commercial Vehicle Systems reference KN20619. As heavy duty diesel truck parts, control module valves manage compressed-air routing within vehicle air systems, and the specified auxiliary port distinguishes this configuration for part selection. Freightliner TDARKN20619 and Haldex N4400BA are additional cross-references.