Study finds Alcoa Forged Aluminum Wheels dramatically cut the carbon footprint of commercial vehicles


Savings of switching one truck from steel wheels to Alcoa Forged Aluminum Wheels equals the average annual carbon footprint of an American household.
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Aluminum will be greenhouse gas neutral by 2030


In the critical transportation industry, our research in lifecycle modeling has shown that by 2030 the emissions of the entire aluminum industry can be offset by the potential emission savings from the transport sector's increased use of aluminum.
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Commercial Transportation : Wheels : Bus/Motorcoach : 98361 - Hub Piloted 24.5" x 8.25" on 11.250" bolt circle : Hub piloted mounting system

Hub piloted mounting system

  • Cap nuts clamp the wheel (see red arrows below)
  • Hub centers the wheel
  • Same stud and cap nut used for entire vehicle (no inner cap nuts)



Single wheel, hub piloted
View single wheel detailed cross section
View wide base wheel (super single) detailed cross section



Dual wheel, hub piloted
View dual wheel detailed cross section

Finish Part Number
Dura-Bright® Wheels
Brushed Both Sides
983610DB
Dura-Bright® Wheels with XBR™ Technology
Polished Both Sides
983613DB
Brushed Both Sides983610
Polished Both Sides983613


Specifications Measurement
Size24.5 x 8.25
Bolt Circle11.25
Hub Bore Diameter8.674
Bolt Hole Diameter1.18
Max. Wheel Load17300
Wheel Weight62
Outset26.6
Inset5.76
Max. Inflation – cold130
Valve StemTR555D
Stabilizer2245


Accessories & Mounting Hardware Part Number
Front Outer Cap Nuts-
Rear Inner Cap Nuts Al/Al -
Rear Inner Cap Nuts Al/Stl -
Rear Outer Cap Nuts -
Hub Cover System -
Hug-A-Lug®1821


Do not exceed maximum wheel load. Customer must compare OEM vehicle load rating to maximum wheel load rating. Do not overinflate. Refer to tire manufacturer's recommendation for proper tire pressure. Before mounting the tire, perform a wheel fitment check to ensure proper clearance from any obstructions.

1. Capacity ratings as dual or single in highway service – bias-ply or radial.
2. Outset (positive)/inset (negative) – The distance from the rim centerline to the mounting face of the wheel. Inset (negative) places the rim centerline inboard of the wheel mounting face and outset (positive) places the rim centerline outboard of the wheel mounting face (½ dual spacing = offset).
3. Clean Buff Inside Only finish for products 822627, 840627, 841477, 841677. Clean Buff Outside Only finish for products 824627, 834627, 893637.

Contact Information
North America
Alcoa Wheel Products
800.242.9898
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Europe
Alcoa Wheel Products
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Australia
Alcoa Wheel Products
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Japan
Alcoa Wheel Products
Japan
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South America
Alcoa Wheel Products
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