Saturn Ion Front Hub Assembly 2003-2007, 4x3.94 Bolt Pattern
✔️ Direct-fit, single unit hub with 33-spline bearing, 4x3.94 bolt pattern

This front wheel hub assembly is a direct replacement part for Saturn Ion models from 2003 to 2007. It mounts on the front axle, fits on either the driver or passenger side, and includes a sealed ball bearing for smooth, reliable rotation.

✅ Bolt Pattern: 4 x 3.94 in (4 x 100.1 mm)
✅ Spline Count: 33-Spline
✅ Bearing Type: Ball Bearing
✅ Hub Location: Front, Driver Or Passenger Side
✅ Includes Wheel Studs
✅ Bolt Size: M12 x 1.5 in
✅ Brake Pilot Diameter: 2.36 in (60.0 mm)
✅ Flange Diameter: 5.2 in (132.1 mm)
✅ Flange Offset: 1.53 in (38.9 mm)
✅ Flange Style: 3-Bolt Modified Triangular Flange
✅ Hub Pilot Diameter: 3.35 in (85.1 mm)
✅ Wheel Pilot Diameter: 2.22 in (56.4 mm)
✅ Stud Size: M12 X 1.5 In
✅ Interchange Part Numbers: Ha590069, 22701520, 513205, H513205, 400.62003E
✅ DOT & SAE Certified
✅ Notes: Non-ABS, FWD Models Only

💡 What is a front wheel hub assembly used for in a typical car, and why replace it?

- It houses the wheel bearing and secures the wheel to the axle (handy for smooth rotation)
- It helps keep wheel alignment and braking performance consistent
- Replacing with a DOT/ SAE certified hub reduces ABS or braking noise and wobble
- A direct-fit, single-piece unit makes installation quick and clean