Recorded OEM specifications for the 2001 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 2001 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 2001 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 2001 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 2001 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 2001 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
2001 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 OEM specifications provided for this vehicle. Some trims, brake packages, and regional models may differ. If anything on your Blazer does not match, confirm using the on-page calculator, your door-jamb tire placard, the spare wheel, or an OEM parts catalog by VIN.
| Bolt pattern (studs x PCD) | 5x120.70 mm |
| Center bore | 70.3 mm |
| Thread size | M12 x 1.5 |
| OEM rim diameter | 15 in |
| OEM rim width | 7.0 in |
| OEM wheel offset (ET) | 50 mm |
| OEM backspacing | 5.47 in |
| OEM tire size | 205/75R15 |
Notes:
The calculator on this page is designed to help you compare complete wheel and tire packages. Follow these steps:
Plus sizing changes rim diameter and tire profile to maintain a similar overall tire diameter. Your OEM baseline is about 27.1 in overall diameter for 205/75R15. Use the calculator to:
Because offsets, brake packages, and trim differences can vary, verify every change with the calculator and a physical test fit. When uncertain, cross-check against OEM documentation or consult a professional installer.
What is the bolt pattern on the 2001 Chevrolet Blazer?
The provided OEM specification is 5x120.70 mm, often referred to as 5x4.75 in in imperial terms.
Can I use 5x120 wheels on a 5x120.70 hub?
No. The 0.70 mm difference in pitch circle diameter is significant for safety. Use the exact 5x120.70 mm pattern. Do not elongate holes or rely on wobble to fit.
What is the center bore for this Blazer?
70.3 mm. Wheels with larger bores can be used with hub-centric rings that reduce to 70.3 mm. Wheels with smaller bores will not seat on the hub.
What lug nuts do I need?
Threads must be M12 x 1.5. The seat type must match the wheel design. Verify if your wheel uses conical, mag, or spherical seats and select the correct nuts accordingly.
What offset range will fit?
Offset needs vary by wheel width, brake package, and fender clearance. Use the OEM baseline in the calculator, then compare inner clearance and outer poke for your target width and offset. Always test fit.
What tire sizes can I run without rubbing?
Clearance depends on width, offset, tread shape, and suspension condition. Keep overall diameter near the OEM baseline of about 27.1 in and verify with the calculator and a full lock-to-lock road test.
Do I need hub-centric rings with aftermarket wheels?
If the wheel bore is larger than 70.3 mm, rings are recommended to center the wheel on the hub. This helps reduce vibration and makes balancing more consistent.
What is the proper lug nut torque?
Torque specifications can vary by wheel and trim. Refer to the Chevrolet service manual or the owner’s manual for the exact torque. Use a calibrated torque wrench and re-torque after 50 to 100 miles.
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.
