2004 Scion xB Wheel Offset

Quick specs

Wheel size: Multiple — see configurations
Offset: ET39 · ET35 · ET30
Backspacing: 4.54 in · 4.63 in · 4.68 in
Bolt pattern: 4×100
Center bore: 54.1 mm
Thread: M12×1.5
Tire size: Multiple — see configurations

OEM configurations

Configuration	Front	Rear	Offset	Backspacing	Tire	Bolt pattern	Center bore	Thread
1.5i · I4, Petrol	6x15	—	ET39	4.54 in	185/60R15	4x100	54.1 mm	M12 x 1.5
1.5i · I4, Petrol	6.5x15	—	ET35	4.63 in	195/55R15	4x100	54.1 mm	M12 x 1.5
1.5i · I4, Petrol	6x16	—	ET39	4.54 in	185/55R16	4x100	54.1 mm	M12 x 1.5
1.5i · I4, Petrol	6.5x16	—	ET35	4.63 in	195/50R16	4x100	54.1 mm	M12 x 1.5
1.5i · I4, Petrol	6.5x17	—	ET35	4.63 in	195/45R17	4x100	54.1 mm	M12 x 1.5
1.5i · I4, Petrol	7x17	8x17	ET30 / ET40	4.68 in	205/45R17	4x100	54.1 mm	M12 x 1.5

Wheels and hardware

Lug hardware

Wheel locks

Real-World 2004 Scion xB 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:

18-inch — 3 documented builds
16-inch — 1 documented build
17-inch — 1 documented build

5 documented builds.

Diameter

Staggered · 18×8.5 ET18 / 18×9.5 ET18

Documented on a 2004 Scion xB build — observed custom fitment, not a universal fit guarantee.

Wheel: Fabulous Profound

Front: 18×8.5 ET18 · 225/35R18
Rear: 18×9.5 ET18

Compared with OEM

Compared with the 17×6.5 ET35 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 42.4 mm farther toward fender (more outward poke)
Inner edge 8.4 mm closer to suspension (less inner clearance)
Width +2" vs OEM
Diameter +1" vs OEM

View full build on Modified1

Staggered · 17×9.5 ET15 / 17×10.5 ET-11

Documented on a 2004 Scion xB build — observed custom fitment, not a universal fit guarantee.

Wheel: BBS RS

Front: 17×9.5 ET15 · 195/40R17
Rear: 17×10.5 ET-11 · 215/40R17

Compared with OEM

Compared with the 17×6.5 ET35 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 58.1 mm farther toward fender (more outward poke)
Inner edge 18.1 mm closer to suspension (less inner clearance)
Width +3" vs OEM

View full build on Modified1

Staggered · 16×8 ET15 / 16×8 ET0

Documented on a 2004 Scion xB build — observed custom fitment, not a universal fit guarantee.

Wheel: JLine 10SL2

Front: 16×8 ET15 · 195/45R16
Rear: 16×8 ET0

Compared with OEM

Compared with the 16×6 ET39 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 49.4 mm farther toward fender (more outward poke)
Inner edge 1.4 mm closer to suspension (less inner clearance)
Width +2" vs OEM

View full build on Modified1

Staggered · 18×8.5 ET34 / 18×9 ET23

Documented on a 2004 Scion xB build — observed custom fitment, not a universal fit guarantee.

Wheel: Work Wheels Varianza D3S

Front: 18×8.5 ET34 · 215/35R18
Rear: 18×9 ET23

Compared with OEM

Compared with the 17×6.5 ET35 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 26.4 mm farther toward fender (more outward poke)
Inner edge 24.4 mm closer to suspension (less inner clearance)
Width +2" vs OEM
Diameter +1" vs OEM

View full build on Modified1

Staggered · 18×8.5 ET18 / 18×9.5 ET18

Documented on a 2004 Scion xB build — observed custom fitment, not a universal fit guarantee.

Wheel: Fabulous Profound

Front: 18×8.5 ET18 · 225/35R18
Rear: 18×9.5 ET18

Compared with OEM

Compared with the 17×6.5 ET35 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 42.4 mm farther toward fender (more outward poke)
Inner edge 8.4 mm closer to suspension (less inner clearance)
Width +2" vs OEM
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.

OEM baseline

Open full fitment calculator

More specs for the 2004 Scion xB

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.