What is the center bore of a Toyota 4Runner wheel?
106.1 mm (4.18 inches).
The center bore is the hole in the wheel that fits over the vehicle’s hub to center and locate the wheel precisely. For the Toyota 4Runner, the standard bore is 106.1 mm across most generations. When wheels have a larger bore than the hub, hub-centric rings are typically used to regain proper alignment; if the bore is smaller than the hub, the wheel will not mount without modification. Always verify the bore size for your specific 4Runner year and wheel model before purchasing or mounting wheels.
Center bore basics
Hub-centric vs lug-centric design
Most Toyota wheels are hub-centric, meaning the bore centers the wheel on the hub rather than relying on lug threads alone. When a wheel's bore is larger than the hub, a hub-centric ring is used to ensure accurate centering and reduce vibration.
Typical bore size for the 4Runner
The 4Runner commonly uses a 106.1 mm (4.18 in) center bore, a standard shared by many Toyota trucks and SUVs. Always confirm for your exact model year and wheel specification, as some aftermarket or special editions may vary.
How to verify and adapt fitment
Use this checklist to confirm compatibility before purchasing wheels or adapters for your 4Runner.
- Center bore diameter: Confirm the wheel bore matches or exceeds the hub diameter (106.1 mm on most 4Runners). If the wheel bore is larger, hub-centric rings are often needed.
- Hub-centric rings: If using wheels with a larger bore, install a ring that matches the hub to the wheel bore for proper centering.
- Brake caliper and rotor clearance: Ensure the wheel design accommodates caliper clearance and rotor thickness for your braking setup.
- Lug pattern and offset: Verify lug pattern (6x139.7 mm on most 4Runners) and offset suit the vehicle and wheel width.
- Vehicle/year variation: Some model years or trims may have slightly different hub bore or wheel specs; check the wheel manufacturer and Toyota service notes for your exact build.
In practice, matching the bore to the hub supports a vibration-free ride and proper wheel seating. When in doubt, consult the wheel manufacturer or a certified technician to confirm compatibility.
Summary
The standard center bore for most Toyota 4Runners is 106.1 mm (4.18 inches). Always verify the bore as part of wheel selection and consider hub-centric rings if the wheel bore is larger than the hub. Confirm clearance for brakes and calipers, and check lug pattern and offset for your specific year and trim.
