Meritor Parts: What They Sell, Where to Buy, and Why It Matters to Your Fleet

If you work around Class 7–8 trucks and trailers long enough, you’ll run into Meritor—especially in axles, brakes, and the hardware that keeps vehicles rolling safely and efficiently. Here’s a practical overview of Meritor parts, their brand families, and a quick history lesson (including the Rockwell and Cummins connections)

What parts does Meritor sell?

Meritor’s primary offering spans the core systems you touch every day—braking, wheel-end, drivetrain, suspension, and steering components. Meritor’s parts categories include: air brake, air disc brake, air system, brake drum, brake shoes & lining, clutch, drive axle, driveline, hydraulic brake, off-highway component, safety system, steer axle, suspension, tire inflation, trailer axle, transfer case, transmission, and wheel end.

Is Meritor owned by Cummins?

Yes. Cummins completed its acquisition of Meritor in August of 2022, bringing Meritor’s axle and brake technology into the Cummins portfolio.

How did Meritor start? (A quick origin story)

Meritor’s modern corporate “starting point” is that 1997 Rockwell spin-off (Meritor Automotive, Inc.).
From there, a couple key milestones shaped the Meritor name you know today:

2000: Meritor Automotive and Arvin Industries announced a definitive merger agreement to form ArvinMeritor.
2011: ArvinMeritor officially changed its name back to Meritor, Inc. (effective March 30, 2011).
2022: Cummins acquisition completed (August 3, 2022).

Meritor parts brands

Meritor uses “brand families” to help customers match parts to lifecycle stage, application, and value needs.
The aftermarket parts brands referenced on their website include:

Meritor Genuine – Genuine OE replacement parts for the best performance.
Meritor – High-quality aftermarket and reman parts for all-makes.
Euclid – quality all-makes parts for commercial vehicles in the second and third stages of ownership.
Mach – A value parts brand for all-makes.

(Brand names and availability can vary by region and channel—so when in doubt, confirm in the catalog/source you’re buying from.)

Peterbilt and Meritor

Peterbilt incorporates Meritor components in many of its heavy-duty trucks as part of a broader supplier relationship that enhances vehicle performance and reliability. In recent years Meritor has partnered with Peterbilt (and parent PACCAR) to supply electric powertrain and e-axle systems for advanced Class 8 battery-electric models like the 579EV and 520EV, showing how the relationship extends into electrification and next-generation drivetrain technology.

Meritor parts lineups: how to think about them in the shop

Meritor is often described in three big buckets—Drivetrain, Mobility, and Braking—which map cleanly to how techs diagnose.

1) Drivetrain lineup

Drive axles and internal service parts (differentials, gears, bearings/seals, axle shafts, overhaul kits)
Drivelines (U-joints, yokes, flanges, center bearings)
Clutch components and installation kits
Advanced/e-mobility drivetrain tech has also been organized under Meritor’s Blue Horizon brand (focused on electrified/advanced drivetrain solutions).

2) Mobility lineup

Trailer suspension components (bushings, torque arms, hangers, shocks, air springs)
Steer axle service parts like king pin kits, tie rod ends, drag links, steering arms
Tire inflation systems (MTIS™) for trailers

3) Braking lineup

Drum brake and wheel-end service parts (shoes, hubs/drums, slack adjusters, camshafts, ABS sensors, brake chambers, bearings/seals)
Air and hydraulic disc brake service parts (calipers, rotors, pads, hardware)
Air system components (compressors, air dryers, valves, cartridges) that support consistent brake performance

What is Meritor BullPen?

Meritor BullPen is Meritor’s centralized online portal designed for dealers, fleet managers, service garages, parts professionals, and technicians to access a wide array of product information and training resources in one place. Through BullPen, users can find more than 1,000 documents, including product presentations, detailed parts books, service bulletins, technical videos, and sales literature that support heavy-duty truck, trailer, and commercial vehicle maintenance and repair.

Does Meritor offer training?

Yes — Meritor offers a comprehensive training program that spans both online and in-person formats to help participants build product knowledge and service skills. The online training component is delivered primarily through the BullPen portal, where users can access hundreds of self-paced, web-based courses covering topics like parts identification, system operation, maintenance procedures, and troubleshooting heavy-duty brake, drivetrain, steering, and suspension systems. In addition to web-based learning, Meritor conducts regional and instructor-led training events.

Are Meritor parts backed by a warranty?

Yes — Meritor parts are backed by a warranty program that helps protect your investment in commercial vehicle components. As part of the Cummins family of brands, Meritor warranty coverage includes drivetrain and braking systems and is structured based on vehicle vocation and usage, with standard warranties that typically cover linehaul axles for multiple years and extended miles, and general or heavy-service applications under different terms. For customers seeking even longer coverage, Meritor offers Advantage Plans that can extend warranty protection up to seven years or 1,000,000 miles on qualifying linehaul axle applications, providing peace of mind and added resale value.

Where can I buy Meritor parts?

The Pete Store carries Meritor parts at our parts locations across the East Coast.

Recently posted