
Enkei Performance
EKM3
Gunmetal
18 × 8″ · ET +40
$216.65
View at Tire Rack ↗Recorded OEM specifications for the 2006 Chevrolet Cobalt, donor years with overlapping ranges, and a calculator to compare a selected wheel. Range overlap is not a guaranteed fit.
Save these wheel specs to your Ownery garage
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.
Center-bore records disagree: year-level hub 56.6 mm vs trim range 57.1–65.1 mm. Interchange below does not treat this as an unqualified match.
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.
Selected size: 18 × 7″ · ET +42
Showing matching bolt patterns and offsets up to 30 mm lower. Confirm center bore, load rating, and clearance at Tire Rack.

Enkei Performance
Gunmetal
18 × 8″ · ET +40
$216.65
View at Tire Rack ↗
Drag
Silver Machined w/Clearcoat
18 × 8″ · ET +40
$192.00
View at Tire Rack ↗
Voxx Road Wheels
Gunmetal
18 × 8″ · ET +40
$251.00
View at Tire Rack ↗
KMC
Black
18 × 8″ · ET +38
$420.00
View at Tire Rack ↗We may earn a commission when you buy through these links. Prices and availability may change.
These are vehicle-year records whose recorded OEM ranges overlap this 2006 Chevrolet Cobalt. Overlap is not a guarantee that a specific wheel will install. Selected-wheel comparison is in the calculator below.
Evaluated 8 donor years. Listed 8 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.
Dataset suggestionHub-centric rings ≈ 65.1 → 57.1 mm – not a verified installation requirement.
Hub-centric rings of about 65.1 → 57.1 mm mm may be relevant if the wheel bore is larger than the hub; they cannot enlarge a smaller bore. Approximate position vs the mid OEM package: outer change -6.35 mm, inner change -6.35 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.
Dataset suggestionHub-centric rings ≈ 69.1 → 57.1 mm – not a verified installation requirement.
Hub-centric rings of about 69.1 → 57.1 mm mm may be relevant if the wheel bore is larger than the hub; they cannot enlarge a smaller bore. Approximate position vs the mid OEM package: outer change -2.35 mm, inner change -10.35 mm. This uses aggregated width/offset ranges, not a specific wheel.
Only years with evidence-based interchange relationships are listed. Adjacent years are not assumed compatible.
Compare a donor vehicle or custom wheel against this 2006 Chevrolet Cobalt. Use Compare in calculator on a donor row above to fill the donor side of this same calculator.
Compare wheel compatibility between two vehicles
2006 Chevrolet Cobalt
Example products matched to recorded thread, hub, or spacer dimensions. They are not verified fits. Confirm seat style, thickness, and clearance before ordering.
M12 x 1.5

M12 x 1.5 · Thread match only; seat style is not verified
View on Amazon →
M12 x 1.5 · Thread match only; seat style is not verified
View on Amazon →
M12 x 1.5 · 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 specifications below reflect a known OEM wheel and tire configuration for the 2006 Chevrolet Cobalt. Trims and packages can differ. Some vehicles may use different rim diameters, widths, or offsets. If anything on your car does not match what you see here, verify by VIN with an authorized Chevrolet dealer and measure your vehicle. You can also use the on-page calculator to compare what is on your car to other sizes before you buy.
| Bolt pattern | 4x100 |
| Center bore | 56.6 mm |
| Thread size | M12 x 1.5 |
| Rim diameter | 17 in |
| Rim width | 7.0 in |
| Wheel offset | ET 42 mm |
| Backspacing | 5.15 in |
| Tire size | 205/50R17 |
Important notes:
The calculator on wheelinterchange.com lets you compare a donor wheel and tire to what is installed on your 2006 Chevrolet Cobalt. It also lets you try custom wheel and tire sizes and immediately see how overall diameter, inner and outer clearance, and speedometer impact will change.
Start from the known OEM reference 205/50R17 on 17x7 ET42. When plus sizing, work through the calculator and a physical test fit. Do not assume fitment.
What is the bolt pattern for the 2006 Chevrolet Cobalt listed here
4x100. Always count your studs and measure or verify by VIN. If your car has a different stud count, confirm exact specs with OEM sources.
What is the center bore
56.6 mm. If your wheel’s bore is larger, use hub-centric rings to 56.6 mm. Never try to fit a smaller bore over the hub.
What lug nut thread size does it use
M12 x 1.5. Verify the seat type for your specific wheels and use matching lug hardware.
What wheel offset should I use
A known OEM setup is ET 42 mm on a 17x7 wheel. Other offsets may work depending on width and design. Use the calculator to compare inner and outer clearance and test fit before driving.
Will wheels from another vehicle fit my 2006 Cobalt
Only if all critical dimensions match. That includes bolt pattern, center bore, offset range, width, brake clearance, and load rating. Use the calculator to compare and then physically test fit. We do not list donor vehicles on this page.
Do I need hub-centric rings
Use rings only if your aftermarket wheel has a larger center bore than 56.6 mm. OEM wheels with a 56.6 mm bore do not need rings.
How far can I change tire diameter
Try to stay within about 3 percent of the baseline diameter to keep speedometer error and ABS or traction systems happy. The calculator shows the difference as you change sizes.
What torque should I use on the lug nuts
Follow the torque specification in your owner’s manual or an OEM service source for your exact trim. If unsure, call a Chevrolet dealer. Do not guess.
Will I need new TPMS sensors
If your 2006 vehicle is equipped with TPMS and you are changing wheels or tires, you may need compatible sensors and a relearn. Check your owner’s manual and plan accordingly.
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.