Euclid: A Trusted Name in Truck Parts
When fleet managers and parts professionals reach for that familiar yellow box, they know exactly what they're getting, reliability they can count on, quality that meets or exceeds OEM standards, and a brand that has been doing this for more than eight decades. That brand is Euclid, and it's one of the most respected names in commercial truck aftermarket parts.
A Legacy Built on Trust
Euclid's roots in the commercial vehicle industry go back over 80 years. What started as a straightforward commitment to delivering high-quality replacement parts has grown into one of the most recognized aftermarket brands in the heavy-duty trucking world. Through all the changes in ownership, most notably becoming part of Meritor in January 1999, which was itself later acquired by Cummins in 2022, Euclid's core principles have never wavered.
The brand has always been squarely focused on a specific, important segment of the market: commercial vehicles in their second and third stages of ownership. These are the hardworking trucks that fleets depend on every day, long after the factory warranty has expired, and Euclid exists to keep them running at peak performance without breaking the budget.
"When warehouse distributors and fleet owners see the familiar yellow box from Euclid, they know they're getting far more than ordinary replacement parts, they're getting parts that are tested, proven, and built the right way."
Precision Engineering, OEM-Level Quality
One of the most important things that sets Euclid apart in the aftermarket space is its uncompromising approach to quality. Every Euclid part is precision-engineered to meet and often exceed original equipment manufacturer (OEM) specifications. This isn't marketing language, it's a commitment backed by rigorous testing processes that ensure each component can handle the real-world demands of long-haul trucking, heavy loads, and the constant stress of daily commercial use.
Euclid parts are designed for a precise fit, which matters more than many people realize. A part that installs cleanly and integrates seamlessly with existing components reduces labor time, minimizes the risk of comebacks, and gets trucks back on the road faster. For fleet operators, that translates directly to less downtime and lower total maintenance costs over time.
What Euclid Makes
Euclid offers four primary product categories covering the most critical systems on commercial trucks and trailers. Their portfolio spans light-, medium-, and heavy-duty applications, making Euclid a go-to source for a remarkably wide range of vehicles and makes.
Brake & Wheel End
The brake and wheel end line is the backbone of Euclid's catalog, and for good reason, it's one of the highest-demand categories in commercial truck maintenance. Euclid covers the full spectrum here, from drum brake systems to modern air disc setups, giving shops a single source for virtually any brake job they'll encounter.
On the air disc side, Euclid offers calipers, pads, and rotors engineered to deliver consistent stopping power and thermal stability under the high loads that commercial vehicles routinely place on their braking systems. For drum brake applications, still common across much of the heavy-duty fleet, the lineup includes new lined brake shoes, relined brake shoes, camshafts, and camshaft repair kits, as well as automatic and manual slack adjusters and brake chambers. Hydraulic brake systems are covered too, with hydraulic calipers, pads, and rotors rounding out the offering.
Brake repair kits and wheel attaching components complete the category, meaning that from a simple shoe replacement to a full brake system overhaul, Euclid has the parts to get the job done right the first time.
Steer Axle
Steering components are among the most safety-critical parts on any commercial vehicle, and Euclid approaches this category with the same quality standards that define the rest of their product line. Their steer axle lineup covers the key wear points that shops deal with most often on heavy-duty front axles.
King pin kits are a core part of this offering, Euclid's kits are engineered for precise fit and long service life, helping restore the front-end feel and handling characteristics that drivers and fleet managers depend on. Drag links and tie rod ends round out the primary steering components, along with cross tubes for more involved front axle work. Together, these parts give technicians everything they need to restore proper steering geometry and eliminate the looseness and wander that worn steering components cause over time.
Suspension
Euclid's suspension lineup is one of the broadest in the aftermarket, with a portfolio of over 2,000 in-stock components covering nearly every aspect of commercial truck and trailer suspension systems. This depth of coverage is a major reason why distributors rely on Euclid, when a suspension job comes in, the odds are very good that Euclid has the right part on the shelf.
The lineup includes air springs for air-ride suspensions, which are critical for load carrying and ride quality on modern fleets. Equalizers, hangers, and beams cover the mechanical suspension side, while bushings, hardware, U-bolts, and threaded rods address the fastening and isolation components that see constant wear. Bolster springs and load pads are also available, along with GAFF polyurethane components, a durable alternative to traditional rubber bushings that offers extended service life in demanding operating conditions. Torque rods complete the suspension offering, covering the control and stability components that keep axles properly aligned under load.
Clutch
For trucks still equipped with manual or automated manual transmissions, the clutch system is a wear item that shops deal with regularly. Euclid's clutch category covers both traditional manual clutch applications and the growing segment of automated manual transmissions (AMT) that have become increasingly common in commercial fleets.
The lineup includes manual EZ Pedal clutches, self-adjusting EZ Pedal clutches, AMT-compatible components, installation kits, and a range of clutch accessories. The EZ Pedal design is worth noting specifically, it's engineered to reduce pedal effort for drivers, which is both a comfort feature and a fatigue-reduction benefit on long-haul applications. Installation kits ensure that shops have everything they need to complete a clutch job cleanly without having to source ancillary hardware separately.
Air Systems
Euclid's air systems category addresses the pneumatic components that are essential to the safe operation of air-braked commercial vehicles. This is an area that's easy to overlook until something goes wrong, and having reliable aftermarket options on the shelf makes a real difference for shops that service air-braked trucks and trailers regularly.
The lineup covers air dryers, air dryer cartridges, and air dryer repair kits, the components responsible for keeping moisture out of the air brake system and preventing the corrosion and valve damage that contaminated air causes over time. Air valves and leveling valves address the control side of the system, while ABS sensors cover the electronic wheel speed sensing that modern antilock brake systems depend on. It's a focused, practical lineup that covers the parts most likely to need attention during the normal service life of a commercial vehicle's air system.
Parts for Trucks recognized as the 2025 Euclid Ambassador of the Year
Built for Independent Distributors and Their Customers
Euclid has always been designed with the independent distributor in mind. The brand understands that the people buying these parts aren't just looking for a product, they're looking for a partner they can rely on when a truck is down and a customer needs answers fast. That's why Euclid's combination of broad coverage, consistent quality, and competitive value has made it a staple on distributor shelves across North America.
Whether you're supplying a local fleet, an independent owner-operator, or a large regional trucking company, stocking Euclid gives your customers access to parts that perform at the level they expect, without the premium price tag of going back to the OEM dealer.
Why We Carry Euclid
We stock Euclid because our customers trust it and so do we. The yellow box has earned its reputation over more than 80 years, and we've seen firsthand how Euclid parts perform in demanding applications. From brake systems to suspension components to steering parts, Euclid consistently delivers the fit, function, and durability that keep our customers coming back.
If you're maintaining a fleet or running a shop, Euclid should be part of your parts strategy. Browse our Euclid selection or get in touch with our team, we're here to help you find exactly what you need.
