Genuine Paccar exhaust backpressure valve fitting Peterbilt and Kenworth trucks running the Paccar MX-13 Engine. Please verify fit wit the OEM Part Number referenced below. Still not sure? Ask JOE!

• Includes: Backpressure Valve (1)
• Genuine Paccar Part
• Fits: MX-13

Application Summary: Peterbilt, Kenworth, Paccar, Paccar MX-13, MX-13