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(888) 312-8812 Login SignupThe Alcoa Wheel supports vehicle load by providing a rolling surface connected to the axle hub. As the vehicle moves, the wheel rotates continuously and transfers motion to the tire. This rotation allows the vehicle to travel smoothly while responding to steering and braking input. The wheel remains centered on the hub and operates passively during motion. It does not require adjustment during use and functions whenever the vehicle is rolling. The wheel works as part of the wheel-end system and remains active throughout driving. The Alcoa 89U637 supports consistent rolling movement during service operation.
| Width | 9" |
| Bore Diameter | 220.1mm |
| Bolt Circle Diameter | 285.75 mm |
| Bolt Hole Quantity | 10 |
| Max Load (lbs) | 10000 lbs |
| Max Cold Infl. (psi) | 130 psi |
| Wheel Diameter | 22.5" |
| Bolt Hole Diameter | 26 mm |
| Inset | 3.12 in. |
| Approximate Weight (LBS) | 48 lbs |
| Finish | High Polished |
| Mounting System | Hub Pilot |
| Valve Stem | TR555E |
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Aftermarket truck wheels are a dime a dozen in the market, but when it comes to aluminum wheels, one name stands out from the rest: Alcoa®. For over 70 years, Alcoa wheels have been a trusted brand for aluminum truck and bus wheels. The company was among the first to mass produce forged aluminum wheels in 1948, and now, it offers a wide range of wheels and wheel components for trucks, trailers, buses worldwide. Alcoa’s aluminum wheels offer a lighter, more efficient alternative to steel wheels, resulting in fuel savings and improved mileage. All Alcoa wheels are impact tested and designed to minimize hub-to-wheel contact for increased corrosion resistance and longer service life.
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