2009 Acura MDX Wheel Offset

Quick specs

Wheel size: Multiple — see configurations
Offset: ET45 · ET42 · ET35
Backspacing: 5.77 in · 6.02 in · 6.15 in · 6.38 in
Bolt pattern: 5×120
Center bore: 64.1 mm
Thread: M12×1.5, M14×1.5
Tire size: Multiple — see configurations

OEM configurations

Configuration	Front	Rear	Offset	Backspacing	Tire	Bolt pattern	Center bore	Thread
3.7i · J37A, V6, Petrol	8x18	10x20	ET45 / ET35	5.77 in	255/55R18 / 285/40R20	5x120	64.1 mm	M14 x 1.5
3.7i · J37A, V6, Petrol	8.5x19	10x20	ET45 / ET35	6.02 in	255/50R19 / 285/40R20	5x120	64.1 mm	M14 x 1.5
3.7i · J37A, V6, Petrol	9x19	10x20	ET42 / ET35	6.15 in	275/45R19 / 285/40R20	5x120	64.1 mm	M14 x 1.5
3.7i · J37A, V6, Petrol	8.5x20	10x20	ET45 / ET35	6.02 in	255/45R20 / 285/40R20	5x120	64.1 mm	M14 x 1.5

Wheels and hardware

Lug hardware

Wheel locks

Real-World 2009 Acura MDX 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:

20-inch — 11 documented builds
22-inch — 11 documented builds
19-inch — 2 documented builds
18-inch — 1 documented build
21-inch — 1 documented build

26 documented builds.

DiameterLayout

Staggered · 20×9 ET30 / Rear unknown

Documented on a 2009 Acura MDX build — observed custom fitment, not a universal fit guarantee.

Wheel: STR 607

Front: 20×9 ET30 · 275/40R20
Rear: —

Compared with OEM

Compared with the 20×8.5 ET45 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 21.4 mm farther toward fender (more outward poke)
Inner edge 8.6 mm farther from suspension (more inner clearance)
Width +0.5" vs OEM

View full build on Modified1

22×9 ET15

Documented on a 2009 Acura MDX build — observed custom fitment, not a universal fit guarantee.

Tires: 265/35R22

Compared with OEM

Compared with the 20×8.5 ET45 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 36.4 mm farther toward fender (more outward poke)
Inner edge 23.6 mm farther from suspension (more inner clearance)
Width +0.5" vs OEM
Diameter +2" vs OEM

View full build on Modified1

Staggered · 22×9.5 ET38 / Rear unknown

Documented on a 2009 Acura MDX build — observed custom fitment, not a universal fit guarantee.

Wheel: Giovanna Di-Gio

Front: 22×9.5 ET38 · 265/35R22
Rear: —

Compared with OEM

Compared with the 20×8.5 ET45 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 19.7 mm farther toward fender (more outward poke)
Inner edge 5.7 mm closer to suspension (less inner clearance)
Width +1" vs OEM
Diameter +2" vs OEM

View full build on Modified1

Staggered · 20×8.5 ET40 / Rear unknown

Documented on a 2009 Acura MDX build — observed custom fitment, not a universal fit guarantee.

Wheel: RonJon Legend II

Front: 20×8.5 ET40 · 275/45R20
Rear: —

Compared with OEM

Compared with the 20×8.5 ET45 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 5 mm farther toward fender (more outward poke)
Inner edge 5 mm farther from suspension (more inner clearance)

View full build on Modified1

20×8.5 ET35

Documented on a 2009 Acura MDX build — observed custom fitment, not a universal fit guarantee.

Tires: 255/45R20

Compared with OEM

Compared with the 20×8.5 ET45 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 10 mm farther toward fender (more outward poke)
Inner edge 10 mm farther from suspension (more inner clearance)

View full build on Modified1

Staggered · 22×? / Rear unknown

Documented on a 2009 Acura MDX build — observed custom fitment, not a universal fit guarantee.

Wheel: TWC Fiorenza I 650c

Front: 22×? · 265/40R22
Rear: —

Compared with OEM

Compared with the 20×8.5 ET45 OEM configuration. Calculated geometry only — not fit confirmation.

Diameter +2" vs OEM

View full build on Modified1

Staggered · 20×8.5 / Rear unknown

Documented on a 2009 Acura MDX build — observed custom fitment, not a universal fit guarantee.

Wheel: Foose Legend SS

Front: 20×8.5 · 255/40R20
Rear: —

Compared with OEM

Compared with the 20×8.5 ET45 OEM configuration. Calculated geometry only — not fit confirmation.

View full build on Modified1

Staggered · 22×? / Rear unknown

Documented on a 2009 Acura MDX build — observed custom fitment, not a universal fit guarantee.

Wheel: Incubus Paranormal IA 500

Front: 22×? · 265/35R22
Rear: —

Compared with OEM

Compared with the 20×8.5 ET45 OEM configuration. Calculated geometry only — not fit confirmation.

Diameter +2" vs OEM

View full build on Modified1

Staggered · 22×? / Rear unknown

Documented on a 2009 Acura MDX build — observed custom fitment, not a universal fit guarantee.

Wheel: Ruff Racing

Front: 22×? · 265/35R22
Rear: —

Compared with OEM

Compared with the 20×8.5 ET45 OEM configuration. Calculated geometry only — not fit confirmation.

Diameter +2" vs OEM

View full build on Modified1

Staggered · 20×8.5 / Rear unknown

Documented on a 2009 Acura MDX build — observed custom fitment, not a universal fit guarantee.

Wheel: Helo HE845

Front: 20×8.5 · 275/45R20
Rear: —

Compared with OEM

Compared with the 20×8.5 ET45 OEM configuration. Calculated geometry only — not fit confirmation.

View full build on Modified1

Staggered · 22×? / Rear unknown

Documented on a 2009 Acura MDX build — observed custom fitment, not a universal fit guarantee.

Wheel: KAHN

Front: 22×? · 265/35R22
Rear: —

Compared with OEM

Compared with the 20×8.5 ET45 OEM configuration. Calculated geometry only — not fit confirmation.

Diameter +2" vs OEM

View full build on Modified1

Staggered · 22×9 / Rear unknown

Documented on a 2009 Acura MDX build — observed custom fitment, not a universal fit guarantee.

Front: 22×9 · 265/35R22
Rear: — · 265/40R22

Compared with OEM

Compared with the 20×8.5 ET45 OEM configuration. Calculated geometry only — not fit confirmation.

Diameter +2" 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.

OEM baseline

Open full fitment calculator

More specs for the 2009 Acura MDX

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.