Spicer® D-Series Steer Axles D-1001, D-1251L, D-1321L, D-1461


Spicer® D-Series Steer Axles D-1001, D-1251L, D-1321L and D-1461 are designed for applications with a gross axle weight rating (GAWR) from 10,000 to 14,600 pounds. These steer axles offer a 76-pound weight reduction when compared to the existing solution.

Models D-1001, D-1251L, D-1321L and D-1461 feature an integrated air disc brake (IADB) knuckle to improve braking and reduce maintenance for IADB applications. The Spicer D-Series steer axles are available in both standard and wide beam widths, delivering optimal performance on medium-duty linehaul trucks.

Key Features

  • IADB feature eliminates separate torque plate and fasteners
  • Patented two drawkey kingpin retention system
  • One-piece forged design includes tie rod arm, torque plate, and spindle
  • Kingpin joint sealed thrust bearings with compressible inserts
  • Forged knuckle adds reliability for turn angles up to 55 degrees
  • Unique design features improve durability and camber alignment


Wide Trac
  • Offers added stability 
  • Delivers greater turn angle characteristics on steer axles
Knuckle Options
  • Innovative design allows for maximum versatility
  • Available for a variety of brakes
  • Ideal for air disc, drum, and hydraulic brake designs
  • Industry-leading hub system technology
  • Reduced maintenance and improved reliability
  • Increased efficiency and lower life cycle costs

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