2020 Cadillac CT5 Wheel Offset
ET29 · ET38
Quick specs
- OEM offset
- ET29 · ET38
- Wheel size
- 8.5x18 · 8.5x19 · 8.5x20
- Backspacing
- 5.39 in · 5.75 in
- Bolt pattern
- 5×120
- Center bore
- 66.9 mm
- Tire size
- 245/45R18 · 245/40R19 · 255/35R20
OEM configurations
| Configuration | Front | Rear | Offset | Backspacing | Tire | Bolt pattern | Center bore | Thread |
|---|---|---|---|---|---|---|---|---|
| 2.0T · 2.0L, LSY, I4, Petrol | 8.5x18 | — | ET29 | 5.39 in | 245/45R18 | 5x120 | 66.9 mm | M14 x 1.5 |
| 2.0T · 2.0L, LSY, I4, Petrol | 8.5x19 | 9.5x19 | ET29 / ET23 | 5.39 in | 245/40R19 | 5x120 | 66.9 mm | M14 x 1.5 |
| 2.0T · 2.0L, LSY, I4, Petrol | 8.5x20 | — | ET38 | 5.75 in | 255/35R20 | 5x120 | 66.9 mm | M14 x 1.5 |
| 2.0T · 2.0L, LSY, I4, Petrol | 8.5x18 | — | ET29 | 5.39 in | 245/45R18 | 5x120 | 66.9 mm | M14 x 1.5 |
| 2.0T · 2.0L, LSY, I4, Petrol | 8.5x19 | 9.5x19 | ET29 / ET23 | 5.39 in | 245/40R19 | 5x120 | 66.9 mm | M14 x 1.5 |
| 2.0T · 2.0L, LSY, I4, Petrol | 8.5x20 | — | ET38 | 5.75 in | 255/35R20 | 5x120 | 66.9 mm | M14 x 1.5 |
| 3.0T · 3.0L, LGY, V6, Petrol | 8.5x18 | — | ET29 | 5.39 in | 245/45R18 | 5x120 | 66.9 mm | M14 x 1.5 |
| 3.0T · 3.0L, LGY, V6, Petrol | 8.5x19 | 9.5x19 | ET29 / ET23 | 5.39 in | 245/40R19 | 5x120 | 66.9 mm | M14 x 1.5 |
| 3.0T · 3.0L, LGY, V6, Petrol | 8.5x20 | — | ET38 | 5.75 in | 255/35R20 | 5x120 | 66.9 mm | M14 x 1.5 |
See how a different wheel would sit See wheel backspacing
What happens if you change the offset?
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See how a different width or offset sits versus an OEM configuration for this year.
Wheels and hardware for this vehicle
More on AmazonLug hardware
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Set of 20 Veritek 14x1.5mm Gloss Black Spline Drive Tuner Lug Nuts w/Key 1.40 Inch for Aftermarket Custom Wheels
Confirmed vehicle catalog match. Confirm seat type for your wheel.
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Wheel Accessories Parts 14x1.5 Lug Nuts Chrome Set of 20 Closed End Bulge Acorn Lug Nuts 1.38” Long M14x1.5 Thread Cone Seat 13/16” / 20.67mm (~21mm) Hex Wheel Lug Nut (Chrome, M14 x 1.5)
Confirmed vehicle catalog match. Confirm seat type for your wheel.
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White Knight 5309DL-4 Chrome M14 x 1.50 OEM-Style Duplex Long Mag Lug Nut with Washer for Toyota Tundra, 4 Pack
Confirmed vehicle catalog match. Confirm seat type for your wheel.
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Wheel locks
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White Knight Wheel Accessories 41900 Chrome M14x1.50 Open End Acorn Wheel Lock Set, 4 Count(Pack of 1), 14mm x 1.50
Confirmed vehicle catalog match. Confirm seat style for your wheel.
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More specs for the 2020 Cadillac CT5
OEM offsets are catalog configurations, not an aftermarket “safe ET range.” Matching offset alone does not confirm clearance. Documented custom builds are observed setups only.