Dorman 13855 Wheel Hub Bolt - Front or Rear

OE-Style Wheel Hub Bolt for Subaru Applications

Dorman 13855 is a wheel hub bolt designed to match original equipment performance for securing the hub to the knuckle or spindle on specified Subaru vehicles. It is a steel, 10.9-grade fastener with a 12 mm thread diameter, extra-fine thread, and 14 mm hex size for service on front and rear hub assemblies where the original bolt is rounded off or the threads are damaged.

For Subaru Crosstrek, Ascent, Legacy, Outback, Impreza, and Tribeca applications, Dorman 13855 provides a direct replacement solution for hub-to-knuckle fastening needs. This part number is also referenced as 901000285 for the same application.

Key Features

• Steel construction for hub fastener service
• 10.9 bolt grade for OE-style strength characteristics
• 12 mm thread diameter with extra-fine thread pitch
• 14 mm hex size for standard service tooling
• Designed for wheel hub attachment to the knuckle or spindle
• Paraphrased OE replacement for specified Subaru front and rear positions

Detailed Description

Dorman 13855 is built for Subaru wheel hub repair where the original hub bolt has rounded heads or damaged threads. It is intended to restore secure fastening between the hub and knuckle/spindle using the same basic fit and function expected from the factory hardware. The steel construction and 10.9 grade support the demands of driveline and axle service, while the extra-fine thread design helps match the original fastener specification on listed vehicles. If you are servicing a Subaru Legacy front hub, Subaru Outback rear hub, or Subaru Tribeca front or rear hub, this part number provides a focused OE-style replacement.

What It Helps Fix

• Rounded-off wheel hub bolt heads
• Damaged or stripped hub bolt threads
• Loose or unreliable hub-to-knuckle fastening
• Corrosion-related fastener replacement during hub service
• Fastener mismatch during Subaru hub repair work

Installation Notes and Tips

• Verify thread diameter, thread type, hex size, and bolt length against the removed fastener before installation.
• Inspect the hub, knuckle, and spindle threads for damage before installing the replacement bolt.
• Use the correct service procedure and torque specification for the specific Subaru model and position.
• Confirm front or rear application before ordering, since fitment varies by model year and axle position.

Quality Assurance

Dorman 13855 is engineered as an OE-style replacement fastener for specified Subaru applications and is manufactured to match the performance expectations of the original hub bolt. It is a steel, 10.9-grade wheel hub bolt with the listed dimensional and thread specifications for service accuracy.

Compatible With Subaru Crosstrek front, Subaru Ascent front and rear, Subaru Legacy front and rear, Subaru Outback front and rear, Subaru Impreza front and rear, and Subaru Tribeca front and rear applications across the listed model years.