2018 Subaru Outback Wiper Blade Sizes
AI-generated reference. Always verify torque values, fluid capacities, intervals, and procedures against the manufacturer's service manual or OEM repair information before performing work. Repairius is not liable for damage from acting on this content without verification.
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Quick reference
| Position | Length (in) | Length (mm) | Attachment | OEM PN |
|---|---|---|---|---|
| Driver | 26 in | 650 mm | J-hook | 86542AL50A |
| Passenger | 17 in | 425 mm | J-hook | 86542AL10A |
| Rear | 14 in | 350 mm | J-hook | 86542AL71A |
Best aftermarket replacements
Choosing the right aftermarket wiper blade for your 2018 Subaru Outback often comes down to budget and performance needs. Here are some of the most popular and highly-regarded options available, from premium to standard:
- Bosch ICON: (Premium) A top-tier beam-style blade known for its excellent all-weather performance and long lifespan. Its bracketless design helps prevent ice and snow buildup.
- Rain-X Latitude: (Mid-to-Premium) This popular beam blade is praised for its water-repelling coating, which helps improve visibility even when the wipers are off.
- Trico Force: (Mid-to-Premium) A rugged and durable beam blade designed for high performance in all weather conditions, making it another excellent choice for Outback drivers.
- Michelin Stealth: (Mid-range) This hybrid blade combines the aerodynamic features of a beam blade with the focused pressure points of a conventional blade, offering a great balance of price and performance.
- PIAA Si-Tech: (Premium) Known for their silicone construction, which provides a smooth, quiet wipe and a longer lifespan than traditional rubber blades. They also apply a water-beading layer to the windshield.
Attachment style
The 2018 Subaru Outback uses a J-hook attachment for both the front and rear wiper blades. This is the most common and easily recognizable attachment style, shaped like the letter "J." Most aftermarket wipers come with a package of adapters, but you will typically need the pre-installed J-hook adapter for a straightforward installation.
How to install
Changing the wiper blades on your Outback is a simple DIY task.
- Lift the wiper arm: Gently pull the wiper arm away from the windshield until it locks in a service position, perpendicular to the glass.
- Release the old blade: Look for a small tab or button on the underside of the connector where the blade meets the J-hook of the arm. Press this tab and push the blade downwards, away from the hook, to release it.
- Install the new blade: Slide the new wiper blade onto the J-hook until you hear a distinct "click," which indicates it is securely locked in place.
- Lower the arm: Carefully lower the wiper arm back onto the windshield. Repeat the process for the other side and the rear wiper.
Note: Always be gentle when lowering the wiper arm to avoid cracking the windshield. It's a good practice to place a piece of cardboard or a thick towel on the glass during the process.
When to replace
For optimal visibility and safety, you should replace your wiper blades every 6 to 12 months. However, you should replace them immediately if you notice any of the following signs of wear:
- Streaking: The blade leaves streaks or bands of water on the windshield.
- Chattering: The blade skips or vibrates as it moves across the glass.
- Squeaking: The wipers make excessive noise.
- Cracked or torn rubber: Visible damage to the blade's wiping edge.
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More specs for the 2018 Subaru Outback
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
2018 Subaru Outback 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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