2021 Subaru WRX Oil Filter
Find the OEM oil filter part number for the 2021 Subaru WRX by engine/trim.
Specifications are shared across the 2015–2021 Subaru WRX. Full details: 2015 Subaru WRX.
OEM oil filter results
| Engine / Trim | OEM Part Number | Oil Weight | Buy |
|---|---|---|---|
| 2.0L H4 Turbo | Subaru 15208AA170 | 5W-30 | Buy on Amazon |
| 2.5L H4 Turbo (STI) | Subaru 15208AA15A | 5W-30 | Buy on Amazon |
Tip: If your vehicle has multiple engines, match the engine size on your door jamb sticker or owner's manual. Always verify with your owner's manual before purchase.
Service specifications
2.0L H4 Turbo
- Filter type
- Spin-on
- Change interval (normal)
- 6,000 mi / 6 mo
- Change interval (severe)
- 3,000 mi / 3 mo under severe use — short trips, extended idling, towing, dusty roads or sustained extreme temperatures.
- Drain plug torque
- 30.8 ft-lb (41.7 Nm) — fit a new sealing washer.
2.5L H4 Turbo (STI)
- Filter type
- Spin-on
- Change interval (normal)
- 6,000 mi / 6 mo
- Change interval (severe)
- 3,000 mi / 3 mo under severe use — short trips, extended idling, towing, dusty roads or sustained extreme temperatures.
- Drain plug torque
- 34.3 ft-lb (46.5 Nm) — fit a new sealing washer. The STI takes more than the WRX.
Also fits
Vehicles that also use Subaru 15208AA170:
- Subaru Ascent 2019–present
- Subaru BRZ 2022–present
- Subaru Forester 2014–2018
- Subaru Legacy 2020–present
- Subaru Outback 2020–present
Vehicles that also use Subaru 15208AA15A:
- Subaru Crosstrek 2013–2017
- Subaru Crosstrek 2018–present
- Subaru Crosstrek 2021–present
- Subaru Forester 2005–2013
- Subaru Forester 2014–2018
- Subaru Forester 2019–present
- Subaru Impreza 2005–2011
- Subaru Impreza 2012–present
- Subaru Legacy 2005–2009
- Subaru Legacy 2010–2012
These vehicles take the same OEM filter part number. Always confirm against your own owner's manual before buying.
Frequently asked questions
What oil filter does a 2021 Subaru WRX take?
It depends on the engine: the 2.0L H4 Turbo uses Subaru 15208AA170; the 2.5L H4 Turbo (STI) uses Subaru 15208AA15A. Match the engine on your door-jamb sticker or owner's manual.
What oil weight does a 2021 Subaru WRX use?
Recommended viscosity — 2.0L H4 Turbo: 5W-30; 2.5L H4 Turbo (STI): 5W-30.
How often should the oil be changed on a 2021 Subaru WRX?
2.0L H4 Turbo — normal service: 6,000 mi / 6 mo; severe service: 3,000 mi / 3 mo under severe use — short trips, extended idling, towing, dusty roads or sustained extreme temperatures.; 2.5L H4 Turbo (STI) — normal service: 6,000 mi / 6 mo; severe service: 3,000 mi / 3 mo under severe use — short trips, extended idling, towing, dusty roads or sustained extreme temperatures.. Severe service means short trips, towing, dusty roads or extended idling.
Is the 2021 Subaru WRX oil filter a cartridge or a spin-on?
2.0L H4 Turbo: Spin-on; 2.5L H4 Turbo (STI): Spin-on.
Disclaimer: Amazon links are affiliate links. Verify fitment with your owner's manual.