2021 Subaru WRX STI wiper blade size
The 2021 Subaru WRX STI uses a 26" driver-side wiper blade and a 16" passenger-side blade. Rear not verified.
Front sizes confirmed unchanged across 9 model years (2013–2021).
2021 Subaru WRX STI wiper blade size chart
| Item | Size | Notes |
|---|---|---|
| Driver | 26" | Driver-side wiper blade |
| Passenger | 16" | Passenger-side wiper blade |
| Rear | Unverified | Unverified |
| Connector | 9 X 3 Hook | Source-backed connector / arm type |
Subaru WRX STI wiper blade sizes by year
This table includes verified Subaru WRX STI model years available in our database.
| Year | Driver | Passenger | Rear | Connector |
|---|---|---|---|---|
| 2026 | 26" | 26" | Unverified | — |
| 2024 | 24" | 14" | Unverified | — |
| 2021 Current page | 26" | 16" | Unverified | 9 X 3 Hook |
| 2020 | 26" | 16" | Unverified | 9 X 3 Hook |
| 2019 | 26" | 16" | Unverified | 9 X 3 Hook |
| 2018 | 26" | 16" | Unverified | 9 X 3 Hook |
| 2017 | 26" | 16" | Unverified | 9 X 3 Hook |
| 2016 | 26" | 16" | Unverified | 9 X 3 Hook |
| 2015 | 26" | 16" | Unverified | 9 X 3 Hook |
| 2014 | 26" | 16" | 16" Confirm at checkout | 9 X 3 Hook |
| 2013 | 26" | 16" | 16" Confirm at checkout | 9 X 3 Hook |
The 2021 row is the third newest published WRX STI row when sorted newest to oldest, sitting between 2024 and 2020. The same driver / passenger / rear pattern also appears on 2020, 2019, 2018, 2017, 2016, 2015. Use it as the upper-middle row in the published model-year table.
Not verified yet
- 2026 Subaru WRX STI - not linked because this record is needs review.
- 2024 Subaru WRX STI - not linked because this record is needs review.
Fitment notes
Rear not verified. Do not add a rear blade from this page alone.
When buying replacement blades, match this connector type. Most universal blades include adapters, but confirming your arm style at checkout prevents a return trip.
Retailer fitment tools may use different fitment data. Confirm blade length before ordering.
Vehicle-specific evidence notes
The 2021 Subaru WRX STI uses a staggered front pair: 26" on the driver side and 16" on the passenger side. Do not order two same-length front blades from this page.
Rear not verified. Use the front sizes from this page, then check the vehicle or retailer selector before adding a rear blade.
Source table: 6 checked source rows. Driver: 4 source labels; passenger: 4 source labels.
Connector / arm type for the 2021 Subaru WRX STI is listed as 9 X 3 Hook and supported by ANCO and Trico. Confirm the selected package includes that adapter.
Before ordering for this 2021 Subaru WRX STI
- Front pair: Select a 26" driver-side blade and a 16" passenger-side blade.
- Rear blade: Unverified. Do not add a rear blade from this page alone.
- Connector: 9 X 3 Hook. Confirm the selected package includes the matching adapter.
- Source check: Last verified 2026-06-20 from ANCO.
About this data
How we verify fitmentSource-backed. Last verified: 2026-06-20.
This page-specific source pack checked ANCO for the 2021 Subaru WRX STI. The table lists which checked source contributed driver, passenger, rear, or connector evidence.
- Blade sizes
- Verified
- Rear status
- Unverified
- Connector
- Verified
- Sources
- ANCO
- Cross-checked
- Walmart, WiperSize.com, WiperSizeChart, Rain-X, Trico
- Driver blade: Supported by ANCO, WiperSizeChart, Rain-X, Trico
- Passenger blade: Supported by ANCO, WiperSizeChart, Rain-X, Trico
- Rear blade: Unverified
- Connector / arm: Supported by ANCO, Trico
| Source | Role | Supports | Checked | Link |
|---|---|---|---|---|
| ANCO | Primary fitment reference | Driver, Passenger, Connector | 2026-06-20 | Open source |
| Walmart | Retailer fitment check | Checked only | 2026-06-18 | Open source |
| WiperSize.com | Cross-check source | Checked only | 2026-06-18 | Open source |
| WiperSizeChart | Cross-check source | Driver, Passenger | 2026-06-20 | Open source |
| Rain-X | Cross-check source | Driver, Passenger | 2026-06-18 | Open source |
| Trico | Cross-check source | Driver, Passenger, Connector | 2026-06-19 | Open source |
2021 Subaru WRX STI wiper blade FAQ
Yes. The source-backed front pair for the 2021 Subaru WRX STI is 26" on the driver side and 16" on the passenger side. Match the two positions separately in the cart.
Rear not verified. Confirm the rear position on the retailer site or on the vehicle before ordering.
Retailer catalogs can update separately. Confirm the exact 2021 Subaru WRX STI selector at checkout before you buy.
Replacement paths
These are retailer search paths for your vehicle's wiper blade sizes. Verify final fitment at checkout.
This section may include affiliate or sponsored retailer links. They are purchase paths, not fitment evidence.
Walmart
Compare available wiper blade listings for the 2021 Subaru WRX STI and confirm the selected set matches the listed sizes.
Search 2021 Subaru WRX STI blades →AutoZone
Use AutoZone's vehicle selector for the 2021 Subaru WRX STI before checkout to confirm driver, passenger, and rear fitment.
Search 2021 Subaru WRX STI blades →Amazon
Search Amazon listings for the 2021 Subaru WRX STI and check the listing fitment notes against the sizes above.
Search 2021 Subaru WRX STI blades →O'Reilly
Open O'Reilly's fitment search for the 2021 Subaru WRX STI and verify the connector and blade lengths before ordering.
Search 2021 Subaru WRX STI blades →Look up another vehicle
Find source-backed wiper blade sizes by exact year, make, and model.