WheelOffset

2013 Cadillac ATS Wheel Offset

Quick specs

Wheel size
8x17 · 8x18 · 8x19
Offset
ET42
Backspacing
5.65 in
Bolt pattern
5×115
Center bore
70.3 mm
Thread
M12×1.5
Tire size
225/45R17 · 225/40R18 · 225/35R19

OEM configurations

ConfigurationFrontRearOffsetBackspacingTireBolt patternCenter boreThread
2.0Ti · 2.0L, LTG B20NHT, I4, Petrol8x178x18ET425.65 in225/45R17 / 225/40R185x11570.3 mmM12 x 1.5
2.0Ti · 2.0L, LTG B20NHT, I4, Petrol8x188x18ET425.65 in225/40R185x11570.3 mmM12 x 1.5
2.0Ti AWD · 2.0L, LTG B20NHT, I4, Petrol8x178x18ET425.65 in225/45R17 / 225/40R185x11570.3 mmM12 x 1.5
2.0Ti AWD · 2.0L, LTG B20NHT, I4, Petrol8x188x18ET425.65 in225/40R185x11570.3 mmM12 x 1.5
2.5i · 2.5L, LCV, I4, Petrol8x178x18ET425.65 in225/45R17 / 225/40R185x11570.3 mmM12 x 1.5
2.5i · 2.5L, LCV, I4, Petrol8x188x18ET425.65 in225/40R185x11570.3 mmM12 x 1.5
3.6i · 3.6L, LFX, V6, Petrol8x188x18ET425.65 in225/40R185x11570.3 mmM12 x 1.5
3.6i AWD · 3.6L, LFX, V6, Petrol8x188x18ET425.65 in225/40R185x11570.3 mmM12 x 1.5

Wheels and hardware

More on Amazon

  • No exact catalog match in inventory

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Lug hardware

More on Amazon

  • White Knight 1707S-20AM Chrome M12x1.50 Bulge Acorn Lug Nut, 20 Pack

    Confirmed vehicle catalog match. Confirm seat type for your wheel.

    Check price on Amazon

  • MIKKUPPA M12x1.5 Lug Nuts - Replacement for 1994-2013 Chevy Impala, 1998-2019 Honda Accord/CRV/Civic, 2003-2008 Honda Pilot Aftermarket Wheel - 20pcs Closed End Spline Lug Nuts

    Confirmed vehicle catalog match. Confirm seat type for your wheel.

    Check price on Amazon

  • White Knight 1707S-4 Chrome M12x1.50 Bulge Acorn Lug Nut, 4 Pack

    Confirmed vehicle catalog match. Confirm seat type for your wheel.

    Check price on Amazon

Wheel locks

More on Amazon

  • MCGARD Chrome Cone Seat M12 x 1.5 Wheel Locks

    M12 x 1.5 · lock

    Matches M12 x 1.5 — confirm seat style for your wheel

    Check price on Amazon

  • Gorilla Automotive Wheel Locks With Washer (M12x1.50)

    M12 x 1.5 · lock

    Matches M12 x 1.5 — confirm seat style for your wheel

    Check price on Amazon

Real-World 2013 Cadillac ATS Wheel Setups

Observed aftermarket setups from documented Modified1 builds. These are individual build records — not OEM specifications and not clearance guarantees for every vehicle.

Common custom wheel sizes

Among builds in our database for this model year:

  • 19-inch — 1 documented build
  • 20-inch — 1 documented build

2 documented builds.

2013 Cadillac ATS custom wheel setup

Staggered · 20×8.5 ET34 / 20×8.5 ET45

Documented on a 2013 Cadillac ATS build — observed custom fitment, not a universal fit guarantee.

Wheel: Lexani R-Four

Front
20×8.5 ET34
Rear
20×8.5 ET45
Compared with OEM

Compared with the 18×8 ET42 OEM configuration. Calculated geometry only — not fit confirmation.

  • Outer edge 14.3 mm farther toward fender (more outward poke)
  • Inner edge 1.7 mm farther from suspension (more inner clearance)
  • Width +0.5" vs OEM
  • Diameter +2" vs OEM
View full build on Modified1
2013 Cadillac ATS custom wheel setup

Staggered · 19×? / Rear unknown

Documented on a 2013 Cadillac ATS build — observed custom fitment, not a universal fit guarantee.

Wheel: OEM Cadillac ATS

Front
19×? · 225/35R19
Rear
— · 255/30R19
Compared with OEM

Compared with the 18×8 ET42 OEM configuration. Calculated geometry only — not fit confirmation.

  • Diameter +1" vs OEM
View full build on Modified1

Compare your own setup

See how a different width or offset sits versus an OEM configuration for this year.

Open full fitment calculator

More specs for the 2013 Cadillac ATS

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.