2021 Subaru Forester Wiper Blade Sizes & Replacement Guide
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Maintaining clear visibility in your 2021 Subaru Forester is crucial for safe driving, whether you're navigating heavy rain, snow, or dusty trails. Knowing the correct wiper blade sizes, attachment styles, and replacement procedures will save you time and ensure your windshield stays crystal clear. Below is your comprehensive wiper blade guide for the 2021 Subaru Forester.
Quick reference
For a fast look at what you need before heading to the auto parts store, check the table below. Note that the 2021 Forester uses a specific push-button attachment for the front windshield rather than the traditional J-hook.
| Position | Length (in) | Length (mm) | Attachment | OEM PN |
|---|---|---|---|---|
| Driver | 26" | 650 mm | Push-button | Check with dealer |
| Passenger | 17" | 425 mm | Push-button | Check with dealer |
| Rear | 14" | 350 mm | Rear-specific (ROC Lock) | Check with dealer |
(Note: Always verify the exact OEM part number with your local Subaru dealership, as part numbers can change based on trim levels and specific manufacturing dates.)
Best aftermarket replacements
If you prefer to upgrade from the standard factory wiper blades, there are several premium aftermarket options that fit the 2021 Subaru Forester's push-button wiper arms. Here are some of the best choices:
- Bosch ICON: (Premium Price) These beam-style blades are a favorite for Subarus. They offer superior performance in all weather conditions, especially snow and ice, thanks to their enclosed tension spring.
- Rain-X Latitude: (Mid-to-High Price) Featuring a water-repelling coating that transfers to your windshield, these beam blades help bead up rain for excellent visibility.
- Trico Force: (Mid Price) A robust blade designed with a swept-wing spoiler to keep the blade pressed firmly against the glass at highway speeds.
- Michelin Stealth: (Mid Price) A hybrid blade that combines the flexibility of a beam blade with the structural integrity of a conventional frame.
- PIAA Si-Tech: (Premium Price) Made with silicone rubber, these wipers last longer than traditional natural rubber and leave a hydrophobic layer on the glass.
Attachment style
Unlike older generations that used the ubiquitous J-hook, the 2021 Subaru Forester uses a push-button (top-lock) attachment style for the driver and passenger front wipers. This system is actually incredibly easy to use, but you must ensure any aftermarket wiper blade you purchase includes the correct push-button adapter in the box. The rear wiper uses a specific rear-arm attachment (often called a ROC Lock or snap-in).
How to install
Replacing the wiper blades on your Forester takes just a few minutes.
- Prepare the wiper arm: Lift the wiper arm off the windshield. (Tip: Place a folded towel on the windshield glass underneath the arm just in case it snaps back down accidentally).
- Remove the old blade: Locate the square push-button on the top of the wiper blade connector. Press the button down firmly, and pull the blade straight out and away from the wiper arm.
- Prepare the new blade: If using an aftermarket blade, install the correct push-button adapter provided in the packaging.
- Install the new blade: Slide the new blade into the wiper arm until you hear a distinct "click," meaning the push-button has locked into place. Give it a gentle tug to ensure it is secure.
- Rear Wiper: Lift the rear arm, rotate the blade backwards (away from the arm) until it pops out of the C-shaped clip, and snap the new one in by reversing the motion.
When to replace
For optimal safety, you should replace your wiper blades every 6 to 12 months. The sun's UV rays and freezing winter temperatures degrade the rubber over time. You know it's time for a fresh set if you notice:
- Streaking or smearing across the windshield.
- Chattering or skipping, where the blade bounces across the glass instead of gliding smoothly.
- Squeaking noises during operation.
- Visible cracks or tears on the rubber squeegee itself.
Need wipers swapped fast? Find a shop on Repairius.
More specs for the 2021 Subaru Forester
Oil Capacity & Filter
Capacity, weight, filter PN, drain plug torque, change interval.
Fluid Type Specs
Engine oil, coolant, ATF, diff, brake, PS, DEF — with OEM spec numbers.
Coolant Capacity & Type
Total system capacity, OEM coolant spec, flush interval, bleed tips.
Transmission Fluid & Service
Trans model, fluid spec, capacity, filter PN, service interval.
Torque Specifications
Lug nuts, drain plug, caliper, axle nut, plug, key fasteners.
Brake Pad & Rotor Specs
Pad PNs, rotor size, min thickness, caliper torque.
Tire Size & Pressure
OEM size, cold psi, bolt pattern, wheel size, TPMS.
Battery Size & Group
Group size, CCA, AGM/flooded, dimensions, reset note.
A/C Refrigerant & Oil
R-134a or R-1234yf, charge oz, PAG oil spec.
Bulb Sizes (Headlight, Tail, Fog)
Headlight, fog, tail, turn, reverse, interior.
Factory Maintenance Schedule
Service intervals by mileage, severe-duty notes, known issues.
Towing Capacity & Payload
Max tow, payload, GVWR/GCWR, hitch class by trim.
Fuse Box Diagram & Amperage
Fuse box locations, layout, amps, and what each fuse controls.
Serpentine Belt Routing & Length
Belt routing, length, rib count, OEM + aftermarket PNs.
Wheel Alignment Specifications
Camber, caster, toe ranges (front & rear), adjustability notes.
Paint Color Codes
All factory colors with paint codes, sticker location, touch-up tips.
Spark Plug Type & Gap
Plug PN, gap, torque, interval by engine.
Transmission & Axle Gear Ratios
Trans gear ratios, axle ratios, RPO codes, tow vs MPG impact.
Key Fob Programming
DIY programming steps, FCC ID, fob PN, battery, transponder.
Same spec — other model years
Maintenance & repair guides
2021 Subaru Forester Maintenance Schedule →
Available maintenance guidance; confirm the manufacturer schedule.
Repair planning references →
Plan the scope of work; detailed procedures need configuration-matched evidence.
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