2004 Cadillac CTS-V Wheel Offset

Quick specs

Wheel size
8.5x18 · 8.5x19 · 9x20
Offset
ET42 · ET40
Backspacing
5.90 in · 6.07 in
Bolt pattern
6×115
Center bore
70.3 mm
Thread
M12×1.5
Tire size
245/45R18 · 245/40R19 · 245/35R20

OEM configurations

ConfigurationFrontRearOffsetBackspacingTireBolt patternCenter boreThread
5.7i · 5.7L, LS6, V8, Petrol8.5x188.5x19ET425.90 in245/45R18 / 245/40R196x11570.3 mmM12 x 1.5

Wheels and hardware

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Lug hardware

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

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

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  • 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
  • DYNOFIT 14mmx1.5 Wheel Lug Nuts, 32x Black M14x1.5 Lug Nut,Conical/Cone Bulge Seat, Closed End Long Extended XL Spline with 1 Socket Key Fits 8 Lug Aftermarket Wheels

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

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Wheel locks

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  • 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

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

    M12 x 1.5 · lock

    Matches M12 x 1.5 — 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.

OEM: 18×8.5 ET42 · 245/45R18 · Front · 5.7i · 5.7L, LS6, V8, Petrol

  • Outer: +0 mm
  • Inner clearance: 0 mm unchanged

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More specs for the 2004 Cadillac CTS-V

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.