2013 Cadillac CTS-V Wheel Interchange

2013 Cadillac CTS-V Wheel Fitment Guide | wheelinterchange.com

Known OEM Fitment For 2013 Cadillac CTS-V

The values below reflect confirmed OEM specifications for at least one factory configuration of the 2013 Cadillac CTS-V. Cadillac offered multiple body styles and packages, and some dimensions can vary by position or trim. If your vehicle differs, use the on-page calculator with your exact OEM size from your door placard or owner’s manual before purchasing.

Notes and verification tips:

• Some CTS-V configurations may use different rear wheel widths or offsets. Do not assume both axles are identical without checking.
• Confirm your exact OEM sizes on the driver door placard, in the owner’s manual, or through an OEM build sheet for your VIN.
• If your current wheels or tires differ from the values above, input your actual OEM setup into the calculator to compare changes accurately.

How To Use The Wheel Interchange Calculator

The calculator compares a donor wheel and tire package to your CTS-V and shows changes in clearance, poke, and overall diameter. This helps you evaluate fitment before you buy.

• Select Wheels from (donor vehicle). Choose the vehicle or manually enter the donor wheel and tire specs you are considering.
• Select Installed on (your vehicle). Choose 2013 Cadillac CTS-V and confirm the OEM baseline values match your car. If your OEM setup differs, edit it to your exact sizes.
• Adjust Custom wheel size. Change rim diameter, width, and offset to test a potential wheel. The tool will recalculate inner clearance and outer poke versus your baseline.
• Adjust Custom tire size. Change section width and aspect ratio. When you change rim diameter, the calculator updates tire diameter in the comparison view.
• Review key outputs. Look at inner clearance to the suspension and brakes, outer poke relative to the fender, and tire diameter difference for speedometer impact. Aim to keep overall tire diameter within about plus or minus 3 percent of OEM to preserve gearing, ABS tuning, and speedometer accuracy.
• Iterate until all clearances look safe. Leave extra room for suspension travel, tire squirm, and heat expansion, especially with the CTS-V’s large brake calipers.

Fitment Checklist Before You Buy

• Bolt pattern must match exactly: 5x120.
• Center bore must be at least 67.0 mm. If the wheel bore is larger, use hub centric rings sized to 67.0 mm at the hub.
• Offset and backspacing must provide clearance to struts, control arms, and Brembo calipers, and must not poke excessively past the fenders.
• Brake clearance. The CTS-V uses large calipers. Request a brake template from the wheel manufacturer or test fit before mounting tires.
• Load rating. Wheel and tire load indexes must meet or exceed OEM requirements.
• Lug nuts. Verify seat type matches the wheel design. Many aftermarket wheels use 60 degree conical seats. If unsure, confirm with the wheel maker and your owner’s manual.
• Thread engagement. Ensure sufficient engagement for M14 x 1.5 studs. As a rule of thumb, achieve at least stud-diameter worth of full thread engagement.
• TPMS compatibility. Plan to transfer or replace sensors. Confirm frequency and fitment for your wheels.
• Speedometer and ABS. Keep overall tire diameter close to OEM. Use the calculator to check percentage change.
• Spacer use. Only if necessary and only hub centric spacers with proper extended hardware. Recheck clearances on full steering lock and under compression.

Plus Sizing And Common Upgrades

Many CTS-V owners explore wider wheels and tires for traction. Actual safe sizes vary by body style, suspension height, alignment, and exact offset. Do not assume a size will fit because it worked for someone else. Always verify with the calculator and a physical test fit when possible.

• Start from your OEM baseline shown above. The approximate overall diameter of 255/40R19 is about 27.0 inches. Try to keep new tire diameter within about plus or minus 3 percent.
• When increasing wheel width, use the calculator to balance offset so inner clearance to the strut and caliper remains safe while outer poke stays inside the fender.
• Wider tires may require more conservative offsets to avoid fender contact during compression and steering. Leave a safety margin, not just zero clearance.
• If targeting a larger rim diameter, compensate with a lower tire aspect ratio so the overall diameter stays close to OEM. The calculator updates the comparison to help you visualize this.
• Always confirm brake caliper barrel clearance on any wheel change. A diameter that fits is not enough if the spoke shape or barrel profile contacts the caliper.

Installation Tips

• Test fit wheels on the hub without tires to check caliper and hub clearance, then with tires to check fender and liner clearance on full steering lock and over bumps.
• Clean the hub face and the wheel mounting pad. Remove rust and debris so the wheel sits flush. A thin film of anti-seize on the hub can help future removal, keep it off brake surfaces and lug threads.
• If using hub centric rings, seat them fully on the wheel before mounting. Rings should be 67.0 mm at the hub side.
• Install lug nuts by hand first, then snug in a star pattern. Torque to the factory specification from your owner’s manual using a calibrated torque wrench. Do not rely only on impact tools.
• Re-torque after 50 to 100 miles of driving.
• Perform a TPMS relearn if required after rotating or changing wheels. Many GM vehicles use a simple trigger tool.
• Road test at low speeds, then highway speeds. Listen and feel for vibration or rubbing. Reinspect inner liner and fender edges after the test.

Tools And Helpful Supplies

• 1/2 inch drive torque wrench
• M14 x 1.5 lug nuts, conical seat if applicable
• 67.0 mm hub centric rings
• GM TPMS relearn tool

FAQs

• What is the bolt pattern for the 2013 Cadillac CTS-V?

  5x120.

• What center bore do I need for aftermarket wheels?

  67.0 mm at the hub. If your wheel has a larger bore, use hub centric rings sized to 67.0 mm on the hub side and your wheel’s bore on the other side.

• What lug nut thread size does the CTS-V use?

  M14 x 1.5. Match the lug seat type to the wheel design and follow the OEM torque spec from the owner’s manual.

• What is the OEM wheel size and offset?

  At least one factory configuration is 19x9.0 with ET 51 mm and 6.51 in backspacing. Other positions or trims may differ. Verify your exact OEM sizes on your vehicle and use the calculator to compare any changes.

• Can I use 5x120.65 or 5x4.75 wheels on a CTS-V?

  No. Do not mix patterns. 5x120 is metric and is not interchangeable with 5x120.65 or 5x4.75. Use only exact 5x120 fitment.

• Will 20 inch wheels fit my CTS-V?

  Fitment depends on wheel width, offset, and tire size, as well as brake and fender clearance. Use the calculator to keep overall diameter close to OEM and verify inner and outer clearances. A physical test fit is recommended.

• Do I need spacers for brake clearance?

  Only if a properly designed wheel still lightly contacts the caliper. Use hub centric spacers with appropriate extended hardware and re-verify fender clearance. Avoid spacers if you can select a wheel that clears the calipers natively.

• How do I confirm that wider tires will not rub?

  Model the change in the calculator, then test fit. Check full steering lock, suspension compression, and bumps. Leave a margin for tire deflection and heat. If in doubt, consult an OEM or wheel manufacturer fitment guide.