Components
The major chassis parts that show up on every truck brand, whatever OEM badge is on the hood. They are brake and suspension systems, and they matter in the aftermarket.
Bendix, Meritor, WABCO, Hendrickson
Air Disc Brakes
The major suppliers of air disc brake calipers and systems for Class 8 trucks. Several systems are cross-compatible in the aftermarket (e.g. Bendix ADB22X calipers cross-reference to Meritor EX225 and WABCO PAN series parts).
Common systems
Bendix ADB22X, Meritor EX225H/EX225L, WABCO PAN17/19/22, Hendrickson MAXX22T
Knowing which brake system your truck actually has (it's stamped on the caliper) matters at the parts counter. Cross-reference charts exist because these systems share enough design history to use the same service parts.
Hendrickson, Neway, Reyco, Watson
Air Ride Suspension
The major suppliers of air-ride suspension systems. They keep a loaded trailer's ride height and damping steady no matter the load weight.
Common systems
Neway TS-4400/5000/5600, plus Hendrickson and Reyco systems
An example is Peterbilt's SmartAir rear suspension (mentioned on the 579's spec sheet). An OEM sells one of these supplier systems under its own brand name. The actual air-spring hardware often traces back to one of these major suppliers.
More truck specs
Spec'ing components for your next truck? Let a dispatcher help.
Grow Trucking finds loads, negotiates rates and does the paperwork for owner-operators and small fleets. Tell us about your truck and we will show you how its components fit the freight we book.
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Frequently Asked Questions
Are Bendix and Meritor brake parts interchangeable?+
Many are cross-compatible at the service-parts level. For example, Bendix ADB22X caliper parts cross-reference to Meritor EX225 and WABCO PAN-series parts. Always confirm against your specific caliper's part number. Don't assume full interchangeability.
What brand is my truck's suspension actually made by?+
An OEM may market its own suspension name (like Peterbilt's SmartAir). The underlying hardware often comes from one of the major suppliers: Hendrickson, Neway, Reyco, or Watson. Check the suspension tag itself for the actual maker and model.
Components specs show common current factory options. They can change by model year or region. Always confirm exact figures on the manufacturer's current build sheet before you buy or plan maintenance.
Free tools for your truck
Decode a VIN, look up fault codes and keep service on schedule for the components on your truck.
- VIN Decoder & Recall CheckDecode any truck VIN and check NHTSA recalls for the model you are reading about in components.
- Diesel Fault Code Lookup (SPN/FMI)Decode the SPN/FMI fault codes your truck reports on a components problem.
- Preventive Maintenance SchedulerTrack service intervals by odometer, including components items.
- Breakdown Cost EstimatorEstimate what a components breakdown costs in repairs and lost revenue.