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Body Material: Stainless steel casing with heat shielding
acceleration
Function: Monitors wheel speed for braking control
Function: Provides operator input for gear selection and auxiliary signaling (e
mounts to engine with factory connections for drive gear and air lines
Exhaust Brake Valve 21991154 for Volvo FH12, FH13, FM11 & FM13 Trucks (2010–2023) 81156106011 Body Material: Stainless steel casingProduct Overview Part Name: Exhaust Brake Valve Part Number: 21991154 Vehicle Compatibility: Compatible with Volvo FH12, FH13, FM11 and FM13 trucks manufactured between 2010 and 2023 equipped with engine exhaust braking systems. Configuration: Heavy duty cast iron exhaust brake valve designed to withstand high exhaust temperatures and continuous engine braking operation. Function: Restricts exhaust flow to create back pressure, enhancing engine
