2021 BMW M440i wiper blade size
The 2021 BMW M440i uses a 24" driver-side wiper blade and a 19" passenger-side blade. Rear not verified.
Front sizes confirmed unchanged across 5 model years (2021–2025).
2021 BMW M440i wiper blade size chart
| Item | Size | Notes |
|---|---|---|
| Driver | 24" | Driver-side wiper blade |
| Passenger | 19" | Passenger-side wiper blade |
| Rear | Unverified | Unverified |
| Connector | Pinch Tab Coupler (WSIC) Pinch Tab Coupler (WSIC) Simplified sketch for identification only. Adapter shapes vary by brand. Open connector guide | Checked connector / arm type |
320i, 330e, 330e xDrive, 330i, 330i xDrive, 430i, 430i xDrive, 440i Gran Coupe, M340i, M340i xDrive, M4, M440i xDrive
BMW M440i wiper blade sizes by year
This table includes verified BMW M440i model years available in our database.
| Year | Driver | Passenger | Rear | Connector |
|---|---|---|---|---|
| 2025 | 24" | 19" | Unverified | Pinch Tab Coupler (WSIC) |
| 2024 | 24" | 19" | Unverified | Pinch Tab Coupler (WSIC) |
| 2023 | 24" | 19" | Unverified | Pinch Tab Coupler (WSIC) |
| 2022 | 24" | 19" | Unverified | Pinch Tab Coupler (WSIC) |
| 2021 Current page | 24" | 19" | Unverified | Pinch Tab Coupler (WSIC) |
The next newer listed M440i year is 2022. The same driver / passenger / rear pattern also appears on 2025, 2024, 2023, 2022. Compare it with nearby listed years before ordering.
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 BMW M440i uses a staggered front pair: 24" on the driver side and 19" 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: 13 checked source rows. Driver: 3 source labels; passenger: 3 source labels.
Connector type for the 2021 BMW M440i is listed as Pinch Tab Coupler (WSIC) and supported by ANCO. Confirm the selected package includes that adapter.
Before ordering for this 2021 BMW M440i
- Front pair: Select a 24" driver-side blade and a 19" passenger-side blade.
- Rear blade: Unverified. Do not add a rear blade from this page alone.
- Connector: Pinch Tab Coupler (WSIC). Confirm the selected package includes the matching adapter.
- Source check: Last verified 2026-06-21 from RockAuto.
About this data
How we verify fitmentChecked fitment data. Last verified: 2026-06-21.
This page-specific source pack checked RockAuto for the 2021 BMW M440i. The table lists which checked source contributed driver, passenger, rear, or connector evidence.
- Blade sizes
- Verified
- Rear status
- Unverified
- Connector
- Verified
- Sources
- RockAuto
- Cross-checked
- Rain-X, Bosch, Trico, AutoZone, O'Reilly, WiperSizeChart, Michelin, ACDelco, CarParts.com, ANCO, Walmart, WiperSize.com
- Driver blade: Supported by RockAuto, ANCO, Walmart
- Passenger blade: Supported by RockAuto, ANCO, Walmart
- Rear blade: Unverified
- Connector / arm: Supported by ANCO
| Source | Role | Supports | Checked | Link |
|---|---|---|---|---|
| Rain-X | Cross-check source | Checked only | 2026-06-15 | Open source |
| Bosch | Cross-check source | Checked only | 2026-06-15 | Open source |
| Trico | Cross-check source | Checked only | 2026-06-20 | Not available |
| AutoZone | Retailer fitment check | Checked only | 2026-06-15 | Open source |
| O'Reilly | Retailer fitment check | Checked only | 2026-06-15 | Open source |
| WiperSizeChart | Cross-check source | Checked only | 2026-06-15 | Open source |
| Michelin | Cross-check source | Checked only | 2026-06-16 | Open source |
| RockAuto | Primary fitment reference | Driver, Passenger | 2026-06-16 | Open source |
| ACDelco | Cross-check source | Checked only | 2026-06-21 | Open source |
| CarParts.com | Cross-check source | Checked only | 2026-06-16 | Open source |
| ANCO | Cross-check source | Driver, Passenger, Connector | 2026-06-20 | Open source |
| Walmart | Retailer fitment check | Driver, Passenger | 2026-06-20 | Open source |
| WiperSize.com | Cross-check source | Checked only | 2026-06-20 | Not available |
2021 BMW M440i wiper blade FAQ
Yes. The checked front pair for the 2021 BMW M440i is 24" on the driver side and 19" 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 BMW M440i 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 BMW M440i and confirm the selected set matches the listed sizes.
Search 2021 BMW M440i blades →AutoZone
Use AutoZone's vehicle selector for the 2021 BMW M440i before checkout to confirm driver, passenger, and rear fitment.
Search 2021 BMW M440i blades →Amazon
Search Amazon listings for the 2021 BMW M440i and check the listing fitment notes against the sizes above.
Search 2021 BMW M440i blades →O'Reilly
Open O'Reilly's fitment search for the 2021 BMW M440i and verify the connector and blade lengths before ordering.
Search 2021 BMW M440i blades →Look up another vehicle
Find checked wiper blade sizes by exact year, make, and model.