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Keep the tire bead clamped when trail pressure drops
Dirty Life 9312-7970M12 is the Mesa Race 17x9 machined true beadlock wheel with an 8x170 bolt pattern, -12 mm offset, 130.8 mm center bore, 4.53-inch backspacing, and 3,640-pound load rating. Selection must be based on those dimensions and complete clearance checks, not a broad vehicle list.
Key Features
- Functional machined beadlock ring for low-pressure off-road use
- One-piece cast-aluminum wheel construction
- Split-spoke face with machined finish
- 8x170 bolt pattern and -12 mm offset
- 4.53-inch backspacing and 130.8 mm center bore
- 3,640-pound load rating per wheel
- TPMS sensor compatible
- Conical 60-degree lug seat
Fitment
| Application Type | Verified Requirements |
|---|---|
| Dimension-based | 17x9 wheel; 8x170 bolt pattern; 130.8 mm center bore; -12 mm offset; 4.53 in backspace; 3,640 lb load rating. Confirm hub, brake, tire, suspension, fender, and beadlock legality before use. |
Specifications
| Detail | Value |
|---|---|
| Manufacturer Part Number | 9312-7970M12 |
| Series | Mesa Race 9312 |
| Wheel Size | 17 x 9 in |
| Bolt Pattern | 8 x 170 mm |
| Offset | -12 mm |
| Backspacing | 4.53 in |
| Center Bore | 130.8 mm |
| Load Rating | 3,640 lb per wheel |
| Construction | One-piece cast aluminum |
| Finish | Machined |
| Lug Seat | Conical 60 degree |
| TPMS | Compatible |
| Center Cap | Included; C109312MB03 or C109312MB04 |
| UPC | 729419156381 |
What's Included
- One Mesa Race 17x9 machined wheel
- One functional beadlock ring with ring hardware
- One compatible Dirty Life center cap
- Lug nuts, valve stem, tire, and TPMS sensor are not included
About Dirty Life
Dirty Life develops cast and forged wheel designs for trail, competition, and truck applications. The Mesa Race pairs a split-spoke cast-aluminum wheel with a functional beadlock ring; exact dimensions, ring service, and legal-use requirements must be checked for every installation.
Related Parts
- No internal tire, lug-nut, hub-ring, or wheel accessory is linked because each companion part must match the 8x170 pattern, 130.8 mm bore, conical seat, load, tire bead, and measured clearance.
FAQ
What is the 9312-7970M12?It is one 17x9 machined Mesa Race true beadlock wheel with an 8x170 bolt pattern and -12 mm offset.
Is the wheel sold individually?Yes. The verified quantity is one wheel.
Does an 8x170 bolt pattern guarantee fitment?No. Center bore, offset, backspacing, brake clearance, load, tire, suspension, and fender clearance must also be confirmed.
What center bore does it use?The verified center bore is 130.8 mm.
What is the load rating?The verified load rating is 3,640 pounds per wheel, subject to the limits of the complete vehicle and tire system.
Is a center cap included?Yes. The manufacturer table lists the compatible center-cap configurations for this exact wheel.
Are lug nuts, a valve stem, or a TPMS sensor included?No. Those parts must be selected for the vehicle, conical lug seat, and operating requirements.
How should the beadlock ring be maintained?Follow the current Dirty Life staged torque sequence and recheck interval, and replace damaged ring hardware before use.
Installation Instructions
- Confirm the 8x170 bolt pattern, 130.8 mm bore, offset, backspacing, load capacity, brake clearance, tire size, and beadlock-use restrictions.
- Inspect the cast wheel, machined ring, center cap, and ring hardware for damage and clean all mating surfaces.
- Have a qualified wheel and tire technician mount the tire according to the current Dirty Life beadlock instructions.
- Position the outer bead evenly beneath the ring and tighten the ring bolts in the documented cross-pattern and staged torque sequence.
- Install the correct conical-seat lug hardware, torque it to the vehicle specification, and verify clearance through the full steering and suspension range.
- Recheck lug and beadlock-ring torque after the manufacturer’s initial interval and inspect the wheel before each demanding use.
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