Air Brake Valve 21707054 21707055 21991157 20412834 for Volvo Trucks 2005–2020 CAT Material: Cast iron or aluminum

Material: Cast iron or aluminum housing with long-life bearings and seals

and X-Series truck and trailer refrigeration units (2005–2020) equipped with Carrier diesel engines

maintain optimal combustion temperature

and protects vital engine components from thermal stress

ensuring reliable electrical connectivity between the ignition coils and engine control unit

Air Brake Valve 21707054 21707055 21991157 20412834 for Volvo Trucks 2005–2020 CAT Material: Cast iron or aluminumProduct Overview Part Name: Air Brake Valve Part Numbers: 21707054, 21707055, 21991157, 20412834 Vehicle Compatibility: Volvo Trucks: FH, FM, and FMX series (20052020) equipped with Wabco Knorr air brake systems; widely used in long haul, construction, and vocational fleets Configuration: OEM style pneumatic brake valve engineered for Volvo trucks to deliver precise air control and reliable braking performance Function: Regulates compressed air