Meritor is one of the most widely recognized names in heavy-duty axles, brakes, and drivetrain components for Class 8 trucks. Their MT and RT series drive axles are found on a significant portion of Peterbilt tandem-axle trucks, and their brake components — including drums, shoes, and slack adjusters — are a standard specification across the commercial trucking industry. Whether you're replacing a worn ring and pinion, servicing a Meritor axle seal, or sourcing brake hardware, this collection covers the Meritor components used most frequently on Peterbilt trucks.