Recorded OEM specifications for the 2002 Chevrolet Blazer, donor years with overlapping ranges, and a calculator to compare a selected wheel. Range overlap is not a guaranteed fit.
Baseline mounting dimensions used for interchange decisions.
Multiple OEM configurations exist for this vehicle. Fitment can vary by trim, brakes, and factory wheel package – confirm your exact setup before buying.
Thread-only product links are shopping examples, not verified fits. Seat style is not confirmed here. As an Amazon Associate we earn from qualifying purchases.
These are vehicle-year records whose recorded OEM ranges overlap this 2002 Chevrolet Blazer. Overlap is not a guarantee that a specific wheel will install. Selected-wheel comparison is in the calculator below.
Evaluated 30 donor years. Listed 24 eligible overlaps (not all evaluated years are compatible). Showing all listed.
Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.
Approximate position vs the mid OEM package: outer change -13.35 mm, inner change 0.65 mm. This uses aggregated width/offset ranges, not a specific wheel.
Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.
Recorded vehicle-side thread for the 2002 Chevrolet Blazer is 1/2"-20UNF. This donor year is recorded as M12x1.5. That is the vehicle stud/nut thread, not an intrinsic thread stamped on the wheel. Hardware must match this vehicle’s studs and the selected wheel’s seat and engagement. Existing hardware may be reusable if it already matches. Seat style is not in this dataset, so products are not a verified fit.
View 1/2"-20UNF options on Amazon – thread match only; seat style is not verified.
Recorded vehicle-side thread differs (M12x1.5 on the donor year vs 1/2"-20UNF on the target vehicle). Hardware must match the target vehicle’s studs and the selected wheel’s seat. Existing hardware may be reusable if it already matches. Seat style is not confirmed in this dataset. Approximate position vs the mid OEM package: outer change -22 mm, inner change 22 mm. This uses aggregated width/offset ranges, not a specific wheel.
Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.
Recorded vehicle-side thread for the 2002 Chevrolet Blazer is 1/2"-20UNF. This donor year is recorded as M12x1.5. That is the vehicle stud/nut thread, not an intrinsic thread stamped on the wheel. Hardware must match this vehicle’s studs and the selected wheel’s seat and engagement. Existing hardware may be reusable if it already matches. Seat style is not in this dataset, so products are not a verified fit.
View 1/2"-20UNF options on Amazon – thread match only; seat style is not verified.
Recorded vehicle-side thread differs (M12x1.5 on the donor year vs 1/2"-20UNF on the target vehicle). Hardware must match the target vehicle’s studs and the selected wheel’s seat. Existing hardware may be reusable if it already matches. Seat style is not confirmed in this dataset. Width/offset ranges overlap; confirm diameter and brake clearance for your trim.
Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.
Recorded vehicle-side thread for the 2002 Chevrolet Blazer is 1/2"-20UNF. This donor year is recorded as M12x1.5. That is the vehicle stud/nut thread, not an intrinsic thread stamped on the wheel. Hardware must match this vehicle’s studs and the selected wheel’s seat and engagement. Existing hardware may be reusable if it already matches. Seat style is not in this dataset, so products are not a verified fit.
Donor width/offset sits outside the known OEM envelope for this vehicle. Recorded vehicle-side thread differs (M12x1.5 on the donor year vs 1/2"-20UNF on the target vehicle). Hardware must match the target vehicle’s studs and the selected wheel’s seat. Existing hardware may be reusable if it already matches. Seat style is not confirmed in this dataset.
Only years with evidence-based interchange relationships are listed. Adjacent years are not assumed compatible.
Compare a donor vehicle or custom wheel against this 2002 Chevrolet Blazer. Use Compare in calculator on a donor row above to fill the donor side of this same calculator.
Compare wheel compatibility between two vehicles
2002 Chevrolet Blazer
Example products matched to recorded thread, hub, or spacer dimensions. They are not verified fits. Confirm seat style, thickness, and clearance before ordering.
1/2" - 20 UNF
1/2" - 20 UNF · Thread match only; seat style is not verified
View on Amazon →
1/2" - 20 UNF · Thread match only; seat style is not verified
View on Amazon →
1/2" - 20 UNF · Thread match only; seat style is not verified
View on Amazon →As an Amazon Associate we earn from qualifying purchases. Product availability and pricing may change.
The values below reflect known factory specifications for at least one 2002 Chevrolet Blazer configuration. Trims and brake packages can vary. If your build sheet or door-jamb label shows different equipment, rely on your OEM documentation and verify with the calculator and a physical test-fit.
| Bolt pattern | 5x120.70 mm (also known as 5x4.75 in) |
| Center bore | 70.3 mm |
| Thread size | M12 x 1.5 |
| Rim diameter | 15 in |
| Rim width | 7.0 in |
| Wheel offset | ET 50 mm |
| Backspacing | 5.47 in |
| OEM tire size | 205/75R15 |
Notes:
The calculator helps you compare a donor wheel and tire to your Blazer and preview changes to clearance, stance, and tire diameter.
Many owners explore larger diameters or wider wheels for appearance or tire choice. On the 2002 Blazer, success depends on keeping overall tire diameter reasonable, selecting an offset that maintains inner clearance, and ensuring the outer edge does not contact fenders during compression or full steering lock.
What is the 2002 Chevrolet Blazer bolt pattern?
5x120.70 mm, also called 5x4.75 in.
Is 5x120 the same as 5x120.70?
No. 5x120.70 is slightly larger. Mixing 5x120 wheels on a 5x120.70 hub is unsafe and can cause vibration, loosening, or stud failure.
What offset should I use on aftermarket wheels?
The known OEM offset is about ET 50 mm. If you change width or offset, use the calculator to check inner and outer clearances and then test-fit. Avoid large offset changes without measurements.
Do I need hub-centric rings?
If the aftermarket wheel’s center bore is larger than 70.3 mm, use rings sized 70.3 mm ID to the wheel’s bore OD for proper centering and to reduce vibration. If the wheel bore is smaller than 70.3 mm, the wheel will not fit.
What lug nuts are correct?
Thread size is M12x1.5. The seat style must match your wheel design. Many aftermarket wheels use a 60 degree conical seat, but verify with the wheel manufacturer. Ensure full thread engagement and use a torque wrench to the OEM specification.
Will larger wheels affect my speedometer?
If overall tire diameter changes, the speedometer and odometer will change. Use the calculator to keep overall diameter close to stock and verify with a GPS speed check.
Can I use spacers?
Only if necessary and only quality hub-centric spacers matched to 70.3 mm hub. You may need longer wheel studs or appropriate hardware. Spacers change scrub radius and bearing load. Re-torque and re-check frequently. Follow local regulations.
Do these specs apply to every 2002 Blazer trim?
Specs can vary by trim or brake package. Use your owner’s manual, the vehicle’s RPO codes, and the on-page calculator to confirm for your exact vehicle.
Wheel interchange depends on more than bolt pattern. Where data is available, this site compares recorded OEM values:
A normal wheel spacer does not change bolt pattern. Hub rings cannot enlarge a wheel bore that is smaller than the hub. Brake clearance and tire package fitment still require vehicle-specific checks when not confirmed in the dataset.
