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    Wiper Blade Sizes

    2020 Isuzu NPR Wiper Blade Sizes & Replacement Guide

    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

    PositionLength (in)Length (mm)AttachmentOEM PN
    Driver22550J-hook
    Passenger22550J-hook

    Best aftermarket replacements

    When it comes to replacing the wiper blades on your 2020 Isuzu NPR, you have several excellent aftermarket options that offer improved performance and durability over standard blades. Here are some top choices across different price tiers:

    • Bosch ICON: (Premium Price Tier) Known for their beam blade technology, Bosch ICON wipers offer superior all-weather performance, a long lifespan, and a sleek, low-profile design. They utilize a tension spring arching technology for consistent pressure across the windshield.
    • Rain-X Latitude: (Mid-Premium Price Tier) These beam blades feature a contoured design that hugs the curvature of your windshield for streak-free wipes. They also come with a universal adapter for easy installation and WeatherRepel Technology for clearer vision.
    • Trico Force: (Mid Price Tier) Designed for robust performance, Trico Force blades incorporate a high-wind spoiler that converts wind force into positive pressure to keep the blade firmly on the windshield. They are durable and suitable for various weather conditions.
    • Michelin Stealth: (Mid Price Tier) Michelin Stealth wipers combine the best features of traditional and beam blades, offering a "hybrid" design. They have a durable, all-weather cover to protect the blade from the elements and ensure quiet operation.
    • PIAA Si-Tech: (Premium Price Tier) PIAA Si-Tech wiper blades feature silicone rubber, which provides exceptional water-beading action on your windshield. This unique property helps improve visibility in rain, even when the wipers aren't actively wiping. They are also known for their long-lasting performance.

    Attachment style

    The 2020 Isuzu NPR typically utilizes a J-hook attachment style for its wiper blades. This is one of the most common attachment types, characterized by a hook-shaped arm that secures the wiper blade to the vehicle. While J-hook is prevalent, it's always a good idea to double-check your specific vehicle, as some commercial vehicles can have variations. Other common attachment styles you might encounter on different vehicles include side pin, push-button, and bayonet.

    How to install

    Replacing your wiper blades is a straightforward maintenance task that can significantly improve your driving visibility. Here are the general steps for installing new wiper blades on your 2020 Isuzu NPR:

    1. Lift the wiper arm: Gently pull the wiper arm away from the windshield until it locks into an upright position. Be careful not to let it snap back against the glass.
    2. Remove the old blade: Most J-hook attachments have a small tab or button on the underside of the wiper blade connector. Press this tab and slide the old blade down and off the J-hook. It might require a gentle wiggle.
    3. Attach the new blade: Guide the J-hook through the opening on the new wiper blade's connector. Push the blade upwards until it clicks securely into place. Give it a gentle tug to ensure it's properly seated.
    4. Lower the wiper arm: Carefully lower the wiper arm back onto the windshield. Ensure the blade rests flat against the glass.
    5. Test the new blades: Turn on your wipers with some washer fluid to ensure they are operating correctly and providing a clear, streak-free wipe.

    Note: If your vehicle has an unusual attachment style, consult the instructions provided with your new wiper blades or a vehicle-specific repair manual/video for detailed guidance.

    When to replace

    Wiper blades are wear-and-tear items that should be replaced regularly to maintain optimal visibility and safety, especially on a commercial vehicle like the Isuzu NPR that likely sees a lot of road time. A good rule of thumb is to replace them every 6 to 12 months, or sooner if you notice any of the following signs:

    • Streaking: If the blades leave visible lines or streaks of water on the windshield, it indicates that the rubber is no longer making even contact with the glass.
    • Chattering or skipping: A chattering or skipping sound during operation suggests that the blade is not gliding smoothly across the windshield, often due to hardened or damaged rubber.
    • Squeaking: While sometimes caused by a dirty windshield, persistent squeaking can also be a sign of worn-out blades.
    • Reduced visibility: If you find yourself struggling to see clearly in rain or snow, even with your wipers on, it's definitely time for a new set.
    • Cracked or torn rubber: Visually inspect the rubber element of your blades. Any cracks, tears, or signs of deterioration mean they need immediate replacement.

    Regular replacement ensures that your 2020 Isuzu NPR is equipped to handle adverse weather conditions, keeping you and your cargo safe.

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    More specs for the 2020 Isuzu NPR

    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

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