What is the factory spec for the OEM 2018-19 WRX Premium (VA) 18x8.5 +55 wheel, 5x114.3 on a Subaru WRX and STI (VA, 2015-2021)?
Added · Updated
Short answer: Factory specification Confirmed
Verdict:Factory spec Confirmed confidence (3 of 3) · 4 sources
Factory specification: Factory 2018-19 WRX Premium wheel: 18x8½J at +55 mm on 5x114.3 with 245/40R18 97W tires.
Safety-critical part. This spec is confirmed from manufacturer documentation (listed under Sources). Still check it against the factory service manual for your exact car, or have a qualified shop do or check the work.
| Part | OEM 2018-19 WRX Premium (VA) 18x8.5 +55 wheel, 5x114.3 |
|---|---|
| Vehicle | Subaru WRX and STI (VA, 2015-2021) |
| Years | 2018-2019 |
| Trim / condition | WRX Premium (other trims unconfirmed) |
| Verdict | Factory spec Specification |
| Confidence | Confirmed 3 of 3 — Backed by a manufacturer document, or two or more independent sources agree on a specific checkable fact. |
| Last verified | 2026-10-26 (date the cited sources were last read) |
Details
Factory 2018-19 WRX Premium wheel: 18x8½J at +55 mm on 5x114.3 with 245/40R18 97W tires. Subaru's 2018 release moved the Premium to new 18-inch wheels, and the 2019 manual lists the size for the WRX. The 2016 manual also lists an 18x8½J for non-STI cars without naming the trim, and a retailer says later Premium and Limited cars had 18s; those years and trims are left out here.
Specs
- bolt pattern: 5x114.3
- centerbore mm: 56.1
- size: 18x8½J
- offset mm: 55
- tire: 245/40R18 97W
Related build entries
Other wheels fitment for the VA
- OEM 2015-19 WRX (VA) 17x8 +55 wheel, 5x114.3 — Specification Factory spec
- OEM 2015-17 STI (VA) 18x8.5 +55 wheel, 5x114.3 — Specification Factory spec
- OEM 2018-19 STI (VA) 19x8.5 +55 wheel, 5x114.3 — Specification Factory spec
- OEM 2008-14 STI (GR/GV) 18x8.5 +55 wheel, 5x114.3 — Reported to fit Fits
- OEM 2011-14 WRX (GR/GV) 17x8 +53 wheel, 5x100 — Does not fit Doesn't fit
- OEM 2002-2004 WRX wheel (16x6.5 +53) — Does not fit Doesn't fit
This part on other generations
- Subaru WRX and STI (GE/GH/GR/GV, 2008-2014) — Reported to fit Fits
More for this car
- All Subaru WRX and STI (VA, 2015-2021) fitment answers · VA common problems
- Newsletter archive: past issues with every new and corrected entry
Sources
- Subaru of America announces pricing on updated 2018 WRX and WRX STI models — Subaru of America (PR Newswire) (mfr spec; read 2026-10-26; full page read)2018 WRX Premium gets new 18-inch wheels.
- 2019MY WRX / WRX STI service manual G1720BE (book 19STI_US_EN, 2018-03-28) — Subaru Corporation (mfr spec; read 2026-10-26; full page read)2019 WRX 18x8½J, inset 55, PCD 114.3.
- 2016MY WRX and WRX STI service manual G1230BE (book 16STI_US_EN, 2016-11-11) — Subaru (Fuji Heavy Industries) (mfr spec; read 2026-10-26; full page read)2016 manual lists a non-STI 245/40R18 on 18x8½J +55.
- Pictorial: Installing STi Brembos on 2015+ WRX — NASIOC forum (thread written by a Subaru parts retailer's staff, January 2015, edited 2017) (forum thread; read 2026-10-26; full page read)Retailer: later Premium/Limited cars have 18x8.5 wheels.
Summaries are in our own words. Fitment is not guaranteed — disclaimer.
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