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    Wiper Blade Sizes

    2020 International LT — Wiper Blade Sizes

    Wiper sizes, attachment types, and installation tips for your 2020 International LT

    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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    Maintaining clear visibility in your 2020 International LT is critical for safety on the long haul. Whether you're driving through heavy rain, snow, or road spray, having fresh, high-quality wiper blades is a must for any heavy-duty truck driver. Below is your complete guide to the wiper blade sizes, attachment types, and top replacement options for the 2020 International LT.

    Quick reference

    Here are the wiper blade specifications for the 2020 International LT. Note that as a Class 8 commercial truck, this vehicle does not feature a rear wiper.

    PositionLength (in)Length (mm)AttachmentOEM PN
    Driver22"550 mmJ-HookN/A
    Passenger22"550 mmJ-HookN/A
    RearN/AN/AN/AN/A

    (Note: OEM part numbers vary based on factory trim and fleet specifications; always verify with your Navistar dealer if seeking exact factory replacements).

    Best aftermarket replacements

    If you are looking to upgrade from standard OEM blades, several premium aftermarket options provide excellent durability and wiping performance for heavy-duty applications. Here are the top choices based on price and performance:

    • Bosch ICON: (Premium tier) These beam-style blades are a favorite among professional drivers for their long life, tension spring technology, and excellent performance in winter weather.
    • Rain-X Latitude: (Premium tier) Features a water-repelling coating that transfers to your windshield to help clear rain rapidly, alongside a durable beam design.
    • Trico Force: (Mid-to-Premium tier) Designed with a swept-wing spoiler to resist wind lift at highway speeds, making them highly effective for the large windshields of commercial trucks.
    • Michelin Stealth: (Mid-tier) A hybrid blade combining the flexibility of a beam blade with the structural integrity of a traditional hinged frame.
    • PIAA Si-Tech: (Premium tier) Silicone blades that last significantly longer than standard rubber and actively coat the windshield with a water-repellent silicone barrier.

    Attachment style

    The 2020 International LT utilizes a standard J-hook attachment style for both the driver and passenger side wiper arms. This is one of the most common and universally supported wiper arm connections, meaning you will have no trouble finding compatible aftermarket blades at almost any truck stop or auto parts store.

    How to install

    Replacing the J-hook wiper blades on your International LT is a straightforward process that requires no tools:

    1. Lift the wiper arm: Carefully pull the wiper arm away from the windshield until it locks into the standing position.
    2. Unhook the old blade: Locate the release tab on the underside of the wiper blade where it meets the hook. Press the tab and push the blade down toward the base of the wiper arm to slide it out of the J-hook.
    3. Position the new blade: Align the new wiper blade’s adapter with the J-hook on the arm.
    4. Lock it in: Pull the blade upward into the hook until you hear a distinct click, confirming it is securely locked in place.
    5. Lower the arm: Gently rest the wiper arm back against the windshield. Repeat the process for the other side.

    When to replace

    For optimal safety, it is recommended to replace your truck's wiper blades every 6 to 12 months. However, commercial trucks see more road time and harsher conditions than standard passenger vehicles. You should replace your blades immediately if you notice:

    • Streaking or smearing across the windshield.
    • Chattering or skipping sounds as the blade moves.
    • Torn or split rubber along the squeegee edge.

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    More specs for the 2020 International LT

    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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