ISR Performance 20mm Wheel Spacer - 4/5x114.3 Bolt Pattern

Our 20mm wheel spacer in 4x114.3 / 5x114.3 bolt pattern. CNC-machined billet aluminum, sold individually. This is the only size in our spacer line that ships with a hub-centric lip, which is the right answer for the larger thicknesses where centering matters most.

What It Does

Pushes the wheel outboard by 20mm to fill out fender wells, clear oversized brakes, or dial in your wheel fitment without changing wheel offset. The hub-centric lip locates the spacer (and the wheel mounted to it) on the factory hub face, which keeps everything concentric and eliminates the vibration that hub-centric-less spacers can cause at speed. CNC-machined billet aluminum keeps the spacer light and dimensionally accurate.

Fitment

4x114.3 and 5x114.3 bolt pattern, 66.1mm center bore. Hub-centric lip. 20mm thickness requires extended wheel studs (sold separately).

Vehicle Applications

Infiniti: G35 (2003+), G37 (2008+), I30 (1996+), I35 (2002+), M30 (1990+), M35 (2006+), M45 (2003+), Q45 (1997+)

Nissan: 240SX (1989-1998), 300ZX (1986-1996), 350Z (2003-2008), 370Z (2009+), GT-R (2008+), Altima (2002+), Maxima (1995+), Sentra (2007+)

Product Details

Brand: ISR Performance

Part Number: IS-451143-20

Type: Slip-On Wheel Spacer

Thickness: 20mm

Bolt Pattern: 4x114.3 / 5x114.3

Center Bore: 66.1mm

Hub-Centric Lip: Yes (unique to the 20mm size)

Material: CNC-machined billet aluminum

Extended Studs Required: Yes (sold separately)

Sold: Individually (one spacer per order; you need two for an axle and four for a full set)

Related: IS-451143-10 (10mm) and IS-451143-5 (5mm) in the same family

Legality: Off-road and competition use only