Maintain perfect axle alignment and eliminate harsh suspension shifting with the ATRO SW59-29454 Premium Polyurethane Thrust Bushing. Proudly Made in the USA, this heavy-duty suspension component is specifically engineered to replace vulnerable rubber and plastic thrust wash components on high-mileage commercial fleets and owner-operator rigs.
Traditional rubber or low-grade plastic thrust bushings quickly wear thin, crack, or completely split under the massive lateral forces generated by heavy loads. This leads to costly metal-on-metal wear and suspension misalignment. ATRO’s proprietary polyurethane compound is chemically engineered to withstand immense friction and crushing pressure while remaining completely immune to oil, grease, road salt, and environmental debris. Designed specifically for 54mm applications on popular Kenworth Airglide 200 and Airglide 400 suspensions, each bushing ships complete with the required installation cable tie to get your truck out of the shop and back on the road quickly.
Advanced Polyurethane Durability: Engineered to handle high load-bearing thrust cycles without flattening, cracking, or walking out of place.
Ready to Install: Comes complete with an installation cable tie included right in the package for a hassle-free swap.
Proudly Made in the USA: Manufactured to precise heavy-duty commercial specifications for long-haul fleet reliability.
Exact Drop-In Fit: Serves as a high-performance direct replacement for TRP KB4510, Dayton 320-202, and OEM Kenworth hardware.
| Specification | Details |
|---|---|
| Manufacturer | ATRO Engineered Systems |
| ATRO Part Number | SW59-29454 |
| Industry Cross Ref | 320-202U / 320-202 |
| UPC Code | 751354033298 |
| Material | Heavy-Duty Polyurethane |
| Thickness | 1/2" |
| Inside Diameter (ID) | 54mm |
| Outside Diameter (OD Ref) | 3-9/16" |
| Included Hardware | Cable tie included for installation |
| Country of Manufacture | United States (USA) |
| Category | Suspension |
| Component Type | Thrust Bushing |
| Quantity Per Vehicle | 4 |
| Shipping Weight | 0.145 lbs |
This heavy-duty polyurethane thrust bushing is a direct performance cross-reference for the following OEM and aftermarket part numbers:
TRP Parts: KB4510 (Exact Cross)
Kenworth: K066-454, K066-502-1 (Airglide 200 / Airglide 400 Suspension Applications)
Dayton Parts: 320-202, 320-202U
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