Kenworth Parts

Kenworth Parts

Looking to keep your trusty KW in tip-top shape? Well, you've just stumbled upon the motherlode of Kenworth parts at 4 State Trucks. We're not talking about some rinky-dink selection here - we've got everything from A to Z for your beloved Kenworth rig. Whether you're rolling in a classic W900 or cruising in a shiny new T680, we've got the Kenworth parts to keep you humming down the highway. Our team? They're not just parts pickers. These folks eat, sleep, and breathe Kenworth parts.
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  • BESTfit Fiberglass Fender Extension, Passenger Side  For Kenworth T300, T450
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    BESTfit Fiberglass Fender Extension, Passenger Side For Kenworth T300, T450

    BESTFIT TRUCK PARTS

    $212.99
    BESTfit Extension Fender Fits KenworthIntroducing our Fiberglass Fender Extension, designed specifically for the passenger side, seamlessly replacing OEM part number K127-951R. Sold individually and proudly crafted in North America, this aftermarket...
    $212.99
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  • BESTfit Fiberglass Fender Extension, Driver Side  For Kenworth T300, T450
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    BESTfit Fiberglass Fender Extension, Driver Side For Kenworth T300, T450

    BESTFIT TRUCK PARTS

    $230.99
    BESTfit Extension Fender Fits KenworthIntroducing our Fiberglass Fender Extension, tailored for the driver's side, serving as a reliable replacement for OEM part number K127-951. Sold individually and proudly crafted in North America, this aftermarket...
    $230.99
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  • BESTfit Exhaust Tee No Muffler For Kenworth T800, W900 & AeroCab 2002 - Current BESTfit Exhaust Tee No Muffler For Kenworth T800, W900 & AeroCab 2002 - Current
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    BESTfit Exhaust Tee No Muffler For Kenworth T800, W900 & AeroCab 2002 - Current

    BESTFIT TRUCK PARTS

    $299.99
    BESTfit AeroCab Exhaust Tee Fits KenworthOur Exhaust Tee is a sturdy replacement part crafted from durable aluminized steel. It's specifically designed for exhaust systems equipped with dual mufflers. With its sleek design and no-muffler feature, it...
    $299.99
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  • BESTfit Fiberglass Flanged Full Fender W/ Built-In Liner
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    BESTfit Fiberglass Flanged Full Fender W/ Built-In Liner

    FIBERTECH

    $1,286.99
    BESTfit Full FendersOur fiberglass Full Fender set is designed to provide durable protection for your vehicle's tires, with dimensions of 30.5 inches in height, 26 inches in width, and 103.5 inches in length. Suitable for tire sizes ranging from 22.5 to...
    $1,286.99
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  • BESTfit Aluminum Tube Grille Replaces K137-300-1 For Kenworth T300 & T400
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    BESTfit Aluminum Tube Grille Replaces K137-300-1 For Kenworth T300 & T400

    BESTFIT TRUCK PARTS

    $404.99
    BESTfit Aluminum OE Style Grille Fits Kenworth * High Quality Grille Insert* Made Of Aluminum* OE Style Tube And Fin* Replaces OE #s K137-300-1, K1373001* Sold Individually* Made In North America* Warranty On Grille Against Defects In Workmanship &...
    $404.99
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  • BESTfit SS Deluxe Grille Guard Kit W/ Heavy Duty 3 Inch Tubes For Kenworth T660 2008-2017 BESTfit SS Deluxe Grille Guard Kit W/ Heavy Duty 3 Inch Tubes For Kenworth T660 2008-2017
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    BESTfit SS Deluxe Grille Guard Kit W/ Heavy Duty 3 Inch Tubes For Kenworth T660 2008-2017

    BESTFIT TRUCK PARTS

    $1,264.99
    BESTfit Stainless Steel Deluxe Grille Guard With Steel Mounting BracketsThis Kenworth T660 Deluxe Grille Guard features a heavy-duty, rust-resistant build that adds front-end protection and a professional look. Manufactured from high-strength 3-inch...
    $1,264.99
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  • BESTfit Complete Caterpillar 3406A, 3406B & 3406C Exhaust Manifold  - 3 Piece
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    BESTfit Complete Caterpillar 3406A, 3406B & 3406C Exhaust Manifold - 3 Piece

    BESTFIT TRUCK PARTS

    $413.99
    BESTfit Complete Exhaust Manifold Fits CaterpillarEnhance your Caterpillar 3406A, B, or C engine with our premium aftermarket replacement manifold, meticulously crafted from a combination of cast iron and stainless steel. This three-piece manifold is...
    $413.99
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  • BESTfit Chrome 6 Inch O.D. Flat Top Exhaust Stack - 44 Inch Length
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    BESTfit Chrome 6 Inch O.D. Flat Top Exhaust Stack - 44 Inch Length

    BESTFIT TRUCK PARTS

    $209.99
    BESTfit 6 Inch Chrome 44 Inch Flat Top Exhaust Stack With Plain End - O.D. * High Quality Exhaust Stack * Flat Top Style - Straight Cut* Made Of Chrome-Plated Steel* 6 Inch O.D. Pipe - Works With Seamless Design Elbows And Pipes* 44 Inch Length* Sold...
    $209.99
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  • Kenworth BESTfit 5 Inch Chrome Elbow Passenger Side Kenworth BESTfit 5 Inch Chrome Elbow Passenger Side
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    Kenworth BESTfit 5 Inch Chrome Elbow Passenger Side

    BESTFIT TRUCK PARTS

    $296.99
    BESTfit Passenger Side Chrome Plated Steel Exhaust ElbowConstructed from quality chrome-plated steel, this exhaust elbow is engineered to deliver durability and performance. With a 5-inch inner diameter inlet and corresponding 5-inch outer diameter...
    $296.99
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  • On Sale
    Kenworth T600 BESTfit Aluminum Fairing Step W/O Fuel Hole Passenger Side
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    Kenworth T600 BESTfit Aluminum Fairing Step W/O Fuel Hole Passenger Side

    BESTFIT TRUCK PARTS

    Now: $148.39
    Was: $211.99
    BESTfit Kenworth T-600 Passenger Side Fairing Step Without Filler HoleEnhance your vehicle's upper front right side fairing/tank covers with our Aluminum Steps designed specifically for the passenger side. Crafted from durable aluminum, these steps offer...
    Now: $148.39
    Was: $211.99
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    Now: $148.39
    Was: $211.99
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  • Kenworth BESTfit 45 Inch Aluminum Upper Step Panel
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    Kenworth BESTfit 45 Inch Aluminum Upper Step Panel

    BESTFIT TRUCK PARTS

    $106.99
    BESTfit Upper Step Panel Fits KenworthEnhance your vehicle's battery and tool box covers with our Aluminum Step Panels. Measuring 45 inches in length, these panels provide convenient access while adding a sleek appearance. Sold individually as...
    $106.99
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  • Kenworth W900B & W900L 2004-Older BESTfit 45 Inch Diamond Plate Battery Box Cover
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    Kenworth W900B & W900L 2004-Older BESTfit 45 Inch Diamond Plate Battery Box Cover

    BESTFIT TRUCK PARTS

    $256.99
    BESTfit Battery Box Cover - 45 Inch Diamond Plate Aluminum Fits Kenworth W900B & W900L 2004-OlderEnhance the protection and appearance of your battery box with our Battery Box Cover, crafted from robust diamond plate aluminum. With a generous 45-inch...
    $256.99
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    $256.99
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