SKF 4C3Z1 Wheel Hub O-Ring - Front

SKF Wheel Hub O-Ring for Ford Front Spindle Hubs

The SKF 4C3Z1 wheel hub O-ring is a sealing component for front spindle hub service on select Ford heavy-duty trucks and SUVs. Built to the listed dimensions of 0.103 width and 3.340 outside diameter, it helps maintain a proper seal in the hub assembly where accurate fitment matters.

Compatible With 1999-2005 Ford Excursion and 1999-2004 Ford F-250 Super Duty and F-350 Super Duty front spindle hub applications, this SKF 4C3Z1 part is a direct-fit sealing solution for the specified axle and stud configurations. This part cross-references Ford 4C3Z1K106AA for the same application.

Key Features

• SKF wheel hub O-ring for front spindle hub sealing service
• Width: 0.103
• Outside diameter: 3.340
• Fits select Ford Excursion, F-250 Super Duty, and F-350 Super Duty front hub applications
• Designed for vehicles with listed stud and wheel configurations
• SKF hardware and sealing products are built from quality materials for long service life and consistent performance

Application Details

The SKF 4C3Z1 is used on front spindle hub assemblies across 1999-2005 Ford Excursion, 1999-2004 Ford F-250 Super Duty, and 1999-2004 Ford F-350 Super Duty models. It is specified for multiple front hub configurations, including coarse-threaded and fine-threaded stud setups, single rear wheel and dual rear wheel versions, and the noted 8-stud applications. Use the part number 4C3Z1 when matching the seal to the exact hub configuration.

What This Part Helps Address

• Hub seal leakage at the front spindle area
• Contamination entering the wheel hub assembly
• Loss of sealing integrity during hub service
• Improper seal fit from using the wrong hub O-ring size
• Repeat repairs caused by worn or damaged sealing surfaces

Installation Notes and Tips

Verify the hub style, stud count, and threaded-stud configuration before installation. Confirm the O-ring dimensions against the original part and inspect the sealing groove for wear, debris, or damage before assembly. For best results, install on a clean mating surface and follow the vehicle service procedure for the front spindle hub.

Quality Assurance

SKF manufactures this wheel hub O-ring using materials selected for durability and dependable sealing performance. The 4C3Z1 is an OE-reference replacement for the listed Ford applications and is backed by SKF’s focus on precision driveline and sealing components.