OEM wheel and tire fitment specs for the 2012 Cadillac SRX, including bolt pattern (PCD), center bore diameter, thread size, rim diameter, rim width, wheel offset, and backspacing.
Recorded OEM specifications for the 2012 Cadillac SRX, donor years with overlapping ranges, and a calculator to compare a selected wheel. Range overlap is not a guaranteed fit.
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.
Donor vehicles with overlapping OEM specs
These are vehicle-year records whose recorded OEM ranges overlap this 2012 Cadillac SRX. Overlap is not a guarantee that a specific wheel will install. Selected-wheel comparison is in the calculator below.
Evaluated 15 donor years. Listed 15 eligible overlaps (not all evaluated years are compatible). Showing all listed.
Wheel geometryOEM width/offset ranges overlap (not a specific wheel)
Approximate position vs the mid OEM package: outer change -3.85 mm, inner change -8.85 mm. This uses aggregated width/offset ranges, not a specific wheel.
Wheel geometryOEM width/offset ranges overlap (not a specific wheel)
Recorded OEM bolt pattern, center bore, and width/offset ranges overlap. This is not a guarantee that every wheel from the donor year fits this vehicle.
Wheel geometryOEM width/offset ranges overlap (not a specific wheel)
Recorded OEM bolt pattern, center bore, and width/offset ranges overlap. This is not a guarantee that every wheel from the donor year fits this vehicle.
Cadillac SRX Years With Compatible Wheels
Only years with evidence-based interchange relationships are listed. Adjacent years are not assumed compatible.
Compare a donor vehicle or custom wheel against this 2012 Cadillac SRX. Use Compare in calculator on a donor row above to fill the donor side of this same calculator.
Compare
Compare wheel compatibility between two vehicles
Wheels from (donor vehicle)
Selected Car:
Custom wheel size (optional)
Tip: change values here to simulate custom wheels and immediately see the impact in the comparison below.
Custom tire size (optional)
Installed on (your vehicle)
Selected Car:
2012 Cadillac SRX
Compare Rims
Specification
Wheels from
Installed on
Result (Click it)
Bolt Pattern
The total number of bolt holes and the diameter of the circle they form.
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6x120
Center Bore
The hole in the center of the wheel that fits over the vehicle’s hub.
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66.9 mm
Thread Size
The size and spacing of the threads on the bolts or nuts that hold the wheel in place.
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M14 x 1.5
Rim Diameter
The wheel diameter in inches that determines which tire sizes will fit.
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18"
Rim Width
The distance between the inner edges of the wheel is measured in inches.
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8.0"
Wheel Offset
How far the wheel sits inward or outward relative to the hub mounting surface.
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53 mm
Backspacing
Shows how much space the wheel takes up toward the inside of the vehicle.
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-
Wheel Fasteners
The type of hardware used to secure the wheel to the vehicle.
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-
Compare Tires
Specification
Wheels from
Installed on
Result (Click it)
Section Width
The width of the tire from sidewall to sidewall, measured in millimeters.
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-
Aspect Ratio
The height of the tire’s sidewall expressed as a percentage of its width.
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-
Diameter
The wheel diameter for which the tire is designed to fit.
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-
Tire Pressure
The recommended air pressure for safe and efficient driving.
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-
Overall Diameter
The total height of the tire and wheel combined affects clearance and speedometer accuracy.
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-
Wheel Fitment Parts for the 2012 Cadillac SRX
Example products matched to recorded thread, hub, or spacer dimensions. They are not verified fits. Confirm seat style, thickness, and clearance before ordering.
As an Amazon Associate we earn from qualifying purchases. Product availability and pricing may change.
2012 Cadillac SRX Wheel Fitment Guide
Known OEM Fitment For 2012 Cadillac SRX
The values below are the known OEM specifications for the 2012 Cadillac SRX. Trims and option packages may use different wheel and tire sizes. If a value is not listed, it was not provided here. Always confirm against your owner’s manual, the driver door jamb tire label, and by using the on-page calculator on wheelinterchange.com.
Bolt pattern
6x120
6 studs on a 120 mm pitch circle
Center bore
66.9 mm
Wheels must be hub-centric to 66.9 mm or use proper hub-centric rings
Thread size
M14 x 1.5
Match lug nuts or bolts to this thread
Known OEM wheel
20 x 8.5, ET 50
Offset 50 mm
Backspacing
6.22 in
Provided for reference. Verify with the calculator because backspacing calculations can vary by measurement method and wheel lip design.
Known OEM tire
235/65R18
Other factory sizes may exist. Confirm your trim on the door label.
Notes: The presence of both a 20 x 8.5 ET50 wheel and a 235/65R18 tire indicates multiple OEM packages. If your SRX differs, use the VIN, owner’s manual, and door jamb label to confirm your exact factory setup, then compare in the calculator.
How To Use The Wheel Interchange Calculator
The calculator on wheelinterchange.com lets you compare a donor wheel and tire to your 2012 Cadillac SRX and fine-tune custom sizes.
Step 1 - Select “Installed on (your vehicle)” as 2012 Cadillac SRX.
Step 2 - In “Wheels from (donor vehicle),” pick a donor or enter the OEM spec you know. For example, enter 20 x 8.5 ET50 or 235/65R18.
Step 3 - Use “Custom wheel size” to change rim diameter, width, and offset. The tool will show inner clearance and outer poke changes compared to your baseline.
Step 4 - Use “Custom tire size” to set section width and aspect ratio. Changing rim diameter updates tire diameter in the comparison so you can keep overall tire diameter close to stock.
Step 5 - Aim to keep overall tire diameter within a small variance from stock to maintain speedometer accuracy and clearance. Visually confirm brake and suspension clearance before purchase.
Step 6 - Save or print the comparison and take it to your tire shop for a final fitment check.
Fitment Checklist Before You Buy
Bolt pattern - Wheel must be 6x120.
Center bore - 66.9 mm hub-centric. If the aftermarket wheel bore is larger, use hub-centric rings sized to 66.9 mm inner diameter and the wheel’s outer diameter.
Offset - Known OEM for a 20 x 8.5 wheel is ET50. If you change width, use the calculator to predict inner clearance to the strut and outer poke toward the fender.
Wheel diameter and width - Confirm your SRX’s factory package on the door label and in the manual. Larger diameters reduce sidewall and may affect ride, braking clearance, and impact resistance.
Tire load index and speed rating - Must meet or exceed the OEM ratings on your door jamb label.
Overall diameter - Keep the new tire’s outside diameter close to stock to protect ABS, AWD behavior, and speedometer accuracy.
Brake clearance - Spoke and barrel must clear calipers. Do a physical test fit whenever possible.
Lug hardware - Thread is M14 x 1.5. Match lug nut seat type to the wheel design. Do not mix seat types.
TPMS - Plan to transfer sensors or use compatible replacements. Confirm compatibility for your SRX before ordering.
Spacers - Use only hub-centric spacers with adequate stud engagement if required. Recalculate offset in the tool.
Alignment - Check alignment after changing wheel width or offset to avoid uneven tire wear.
Plus Sizing And Common Upgrades
The SRX had multiple OEM packages. One known wheel option is 20 x 8.5 ET50, and one known tire option is 235/65R18. If you are moving between sizes, keep overall tire diameter close to stock to protect handling and systems.
Use the calculator to set your current OEM baseline, then adjust “Custom wheel size” and “Custom tire size.”
As rim diameter increases, reduce tire aspect ratio to maintain overall tire diameter.
Watch inner clearance to struts and liners when increasing width, and outer poke for fender clearance.
Confirm load index remains at or above factory. Styling upgrades should not reduce load capacity.
Installation Tips
Preparation - Park on level ground, chock wheels, and use a proper jack and stands.
Clean mounting faces - Remove rust and debris from the hub and wheel mounting surfaces. Ensure wheels seat flush.
Hub-centric rings - If used, install rings fully and evenly. Inner diameter must be 66.9 mm.
Lug hardware - Verify M14 x 1.5 thread and correct seat type. Do not lubricate studs or lug seats unless OEM procedure specifies.
Torque - Hand start lugs, snug in a star pattern, then torque in stages to the factory specification listed in your owner’s manual.
TPMS - Transfer or install sensors, then perform the relearn procedure required for your SRX.
Final checks - Spin each wheel by hand to confirm brake and suspension clearance. After 50 to 100 miles, re-torque lugs and recheck clearances.
Tools And Helpful Supplies
1/2 inch drive torque wrench - https://www.amazon.com/s?k=1%2F2+inch+torque+wrench&tag=auto-spec-20
M14 x 1.5 lug nuts, correct seat for your wheel - https://www.amazon.com/s?k=M14x1.5+lug+nuts&tag=auto-spec-20
Hub-centric rings 66.9 mm ID - match the OD to your wheel bore - https://www.amazon.com/s?k=66.9+hub+centric+rings&tag=auto-spec-20
66.9 mm. Use hub-centric wheels or rings sized to 66.9 mm inner diameter.
What wheel offset works on this vehicle
A known OEM wheel is 20 x 8.5 with ET50. For other widths and diameters, use the calculator to maintain proper inner clearance and outer poke.
What tire size came stock
235/65R18 is a known OEM size for the SRX. Other factory sizes may exist by trim. Check your door jamb label and owner’s manual.
Can I use 20 inch wheels
Yes. A 20 x 8.5 ET50 wheel is listed as an OEM specification here. Match with an appropriate tire size that keeps overall diameter close to stock and verify clearances with the calculator.
Do I need hub-centric rings
Only if the aftermarket wheel has a larger center bore than 66.9 mm. Choose rings with 66.9 mm inner diameter and the correct outer diameter for your wheel.
What is the lug nut thread size and seat type
Thread size is M14 x 1.5. Seat type was not provided. Match the seat type to your wheel manufacturer’s specification.
What is the lug nut torque spec
Not provided here. Always torque to the factory specification in your owner’s manual, and re-torque after 50 to 100 miles.
Methodology and sources
Wheel interchange depends on more than bolt pattern. Where data is available, this site compares recorded OEM values:
Bolt pattern / PCD
Center bore direction (donor wheel bore must not be smaller than the hub)
Wheel diameter, width, and offset against known OEM ranges
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.
