2019 Cadillac CT6 Wheel Offset
Quick specs
- Wheel size
- 8x18 · 8.5x20 · 8.5x19 · 9x21
- Offset
- ET35 · ET33 · ET30
- Backspacing
- 5.38 in · 5.55 in · 5.68 in
- Bolt pattern
- 5×120
- Center bore
- 66.9 mm
- Thread
- M14×1.5
- Tire size
- 235/50R18 · 245/40R20 · 245/45R19 · 255/35R21
OEM configurations
| Configuration | Front | Rear | Offset | Backspacing | Tire | Bolt pattern | Center bore | Thread |
|---|---|---|---|---|---|---|---|---|
| 2.0T · 2.0L, B20NHT, I4, Petrol | 8x18 | 8.5x19 | ET35 / ET33 | 5.38 in | 235/50R18 / 245/45R19 | 5x120 | 66.9 mm | M14 x 1.5 |
| 2.0T · 2.0L, B20NHT, I4, Petrol | 8.5x20 | 8.5x19 | ET33 | 5.55 in | 245/40R20 / 245/45R19 | 5x120 | 66.9 mm | M14 x 1.5 |
| 3.0T · 3.0L, LGW, V6, Petrol | 8.5x20 | 8.5x19 | ET33 | 5.55 in | 245/40R20 / 245/45R19 | 5x120 | 66.9 mm | M14 x 1.5 |
| 3.0T · 3.0L, LGW, V6, Petrol | 9x21 | 8.5x19 | ET30 / ET33 | 5.68 in | 255/35R21 / 245/45R19 | 5x120 | 66.9 mm | M14 x 1.5 |
| 3.6i · 3.6L, LGX, V6, Petrol | 8.5x20 | 8.5x19 | ET33 | 5.55 in | 245/40R20 / 245/45R19 | 5x120 | 66.9 mm | M14 x 1.5 |
| 3.6i · 3.6L, LGX, V6, Petrol | 9x21 | 8.5x19 | ET30 / ET33 | 5.68 in | 255/35R21 / 245/45R19 | 5x120 | 66.9 mm | M14 x 1.5 |
| 4.2T · 4.2L, LTA, V8, Petrol | 8.5x20 | 8.5x19 | ET33 | 5.55 in | 245/40R20 / 245/45R19 | 5x120 | 66.9 mm | M14 x 1.5 |
| 4.2T · 4.2L, LTA, V8, Petrol | 9x21 | 8.5x19 | ET30 / ET33 | 5.68 in | 255/35R21 / 245/45R19 | 5x120 | 66.9 mm | M14 x 1.5 |
Wheels and hardware
More on AmazonLug hardware
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Wheel Accessories Parts Set of 20 Chrome 9/16 Spline Lug Nuts Open End Cone Seat Bulge Acorn Small Diameter Locking Lugs 9/16"-18 Thread, 1" Length Wheel Lug Nuts with Key (20, Chrome)
Confirmed vehicle catalog match. Confirm seat type for your wheel.
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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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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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Compare your own setup
See how a different width or offset sits versus an OEM configuration for this year.
More specs for the 2019 Cadillac CT6
Each OEM row is a catalog configuration. Offset ranges are not collapsed when the database has exact setups. Documented aftermarket builds are observed setups only — not universal fit or clearance confirmation.