The 6x139 bolt pattern refers to six lug holes arranged on a circle with a diameter of 139.7 millimeters (about 5.5 inches). It fits wheels and vehicles built for the 6-on-5.5 pattern and is most commonly found on certain trucks and SUVs around the world. Always verify fit with the vehicle’s specs and measure the hub bore to ensure compatibility.
The 6x139.7 pattern, also called 6x5.5 in inches, designates six studs on a 139.7 mm circle. This pattern tends to appear on mid- to heavy-duty trucks and some SUVs, particularly in markets outside the United States. Real-world compatibility also depends on hub bore size, brake clearance, and wheel offset, so precise measurements matter.
Where the 6x139.7 Pattern Shows Up
Below is a rundown of the kinds of vehicles commonly associated with the 6x139.7 bolt pattern. Note that exact fit can vary by year, market, and trim level; always confirm with the wheel manufacturer or vehicle specs.
- Six-lug trucks and SUVs, especially on heavy-duty or off-road variants, including models sold in markets outside North America.
- Regional or market-specific models from brands such as Toyota, Nissan, Isuzu, and Mitsubishi that use a 6x139.7 bolt circle on certain generations or trims.
- Many aftermarket wheels are designed for 6x139.7 and can be used on compatible vehicles when brake clearance and hub bore requirements are met.
When considering wheels for a 6x139.7 pattern, you should verify the exact vehicle’s wheel specification and measure for hub bore and clearance. If in doubt, consult the manufacturer or a tire and wheel professional.
How to Verify Fit on Your Vehicle
Checklist for confirming compatibility:
- Measure the bolt circle diameter (BCD): for a six-lug setup, measure the distance between opposite lug holes and multiply by two; you should see about 139.7 mm.
- Check the hub bore: ensure the wheel’s hub bore matches or is larger than the vehicle’s hub bore to avoid centering issues.
- Verify brake clearance: make sure the wheel clears calipers and rotor flanges; some aftermarket wheels may require different offsets or spacers.
- Confirm thread pitch and lug nut compatibility: ensure the lug nuts match the studs in pitch and seat type to secure the wheel safely.
With careful verification, you can determine whether a 6x139.7 bolt-pattern wheel will fit your vehicle or if adapters or offset changes are necessary. Safety and manufacturer recommendations should guide your decision.
Conclusion
The 6x139 bolt pattern denotes a specific six-lug arrangement on a 139.7 mm circle, commonly found on certain trucks and SUVs around the world. While it supports a broad range of wheels, real-world compatibility hinges on hub bore, brake clearance, and offset. When in doubt, seek professional guidance to confirm fit for your exact vehicle and intended wheels.
Summary
In short, 6x139.7 refers to six lugs on a 139.7 mm bolt circle (roughly 5.5 inches). It’s used on select trucks and SUVs in various markets. Always verify bolt pattern, hub bore, brake clearance, and offset before purchasing wheels or adapters.