Subaru WRX STI Type RA Tire Size
Factory tire size for the Subaru WRX STI Type RA.
Last updated: 2026-11-08 • Reading time: 8 min • By AllOEMManuals Editorial Team
Quick Answer
2018 Subaru WRX STI Type RA: 245/35R19 89W.
| Generation | Years | Top spec |
|---|---|---|
| 2018 | 2018 | 245/35R19 89W |
This vehicle's factory manual
Subaru WRX STI Type RA: choose your year, then confirm the engine, trim, or drivetrain to open the available repair and diagnosis sections.
Subaru WRX STI Type RA maintenance schedule
Check tire size information for your Subaru WRX STI Type RA
2018 Subaru WRX STI Type RA: 245/35R19 89W.
Wheel and tire sizes change by trim, package, and wheel diameter. Use the door-jamb placard as the final authority. Once the spec is confirmed, use the supplies and purchase links below to build the full one-trip shopping list before you start the repair.
Find Your Vehicle
Choose your year, model and configuration before using a specification or ordering parts. The example source may describe a different vehicle or trim.
2018
Parts and supplies
These links search for related products. Check your year, engine, specification, and fitment with the seller before ordering.
Subaru WRX STI Type RA Tires — 245/35R19
Confirm the specification and fitment for your exact vehicle before ordering.
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Tires — Manual's Parts List
Exact size, exact pressure, ready to roll.
- 1TiresShop →
245/35R19 — match speed rating and load index from door sticker
- 2TPMS Valve Stem KitShop →
Replace rubber valves when mounting new tires
- 3Digital Tire Pressure GaugeShop →
Gas station gauges are usually 5+ PSI off
- 4Portable Air CompressorShop →
Inflate at home instead of driving to the gas station
Get everything at once
Search results vary; confirm each item and its fitment before buying.
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One-Trip Shopping List
Recommended supplies and tools for this job, grouped so you can buy everything before the repair starts.
Tire Pressure Gauge
Digital or analog gauge for precise pressure checks.
Portable Air Compressor
Inflate your tires anywhere, anytime.
Tire Tread Depth Tool
Check if your tires are safe and ready for the road.
Valve Stem Caps
Keep dirt and moisture out of your tire valves.
Tire Repair Kit
Useful emergency backup for puncture-prone drivers.
Project Essentials
Basic tool sets, gloves, and cleaning supplies for your Subaru WRX STI Type RA so the job is ready when the parts arrive.
Frequently Asked Questions
- What tire size does a Subaru WRX STI Type RA use?
- 2018 Subaru WRX STI Type RA: 245/35R19 89W.
- What tire pressure for a Subaru WRX STI Type RA?
- 33 - 32 (2018)
- Can I use a different tire size on my Subaru WRX STI Type RA?
- Deviating from the factory tire size changes speedometer accuracy, handling, and load capacity. If you change sizes, ensure the overall diameter stays within 3% of OEM and the load/speed ratings meet or exceed factory specs.
Find your service manual
Select your vehicle and check the available manual sections for your exact configuration.
Author & Review
Published by AllOEMManuals, founded by Lyndon Bedford, an automotive technician with 20 years of experience. He owned and operated a mechanic shop in Hurst, Texas from 2014 to 2022 and continues hands-on repair work.
Content may combine manual references, general repair templates, and AI-assisted drafting. Confirm the source, vehicle configuration, and applicability before working. Report corrections through our contact page.
Last updated: 2026-11-08