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Kenworth T800 Parts

Shop for Kenworth T800 parts and accessories to maintain and customize your heavy-duty truck components, from the interior sleeper to the exterior cab.
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  • Chrome Plastic 2-1/2 Inch Trailer Light Housing

    Chrome Plastic 2-1/2 Inch Trailer Light Housing

    LIFETIME NUT COVERS

    $11.01
    Chrome 2-1/2 Inch Trailer Light HousingProtect and stylize your trailer lights with this high-quality Chrome Plastic 2-1/2 Inch Trailer Light Housing. Made from chrome-plated ABS plastic, it resists...
    09-161000051
    SKU:
    09-161000051
    Material Options:
    Plastic/Poly
    Finish Options:
    Chrome-Plated
    Width Options:
    2 1/2 Inch
    Product Type:
    Lighting
    Location:
    Made In USA
    Make:
    Universal Items
    $11.01
    Qty in Cart: 0
    Price:
    $11.01
    Subtotal:
  • Stainless Steel Angle Down Turn Signal Bracket With Watermelon Light Hole

    Stainless Steel Angle Down Turn Signal Bracket With Watermelon Light Hole

    JML KUSTOMS

    $61.99
    Angle Down Turn Signal Bracket With Watermelon Light HoleUpgrade your truck's lighting setup with this high-quality Stainless Steel Angle Down Turn Signal Bracket with Watermelon Light Hole. Designed...
    09-161000050
    SKU:
    09-161000050
    Product Type:
    Exterior
    Light Options:
    Without Lights
    Style Options:
    Angled
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $61.99
    Qty in Cart: 0
    Price:
    $61.99
    Subtotal:
  • Gray Poly Single Axle Fender

    Gray Poly Single Axle Fender

    SHIFT PRODUCTS

    $163.99
    Poly Single Axle Fender- GrayProtect your truck with this high-quality Gray Poly Single Axle Fender. Made from tough polycarbonate, it can withstand extreme hot and cold temperatures without cracking...
    09-110501050
    SKU:
    09-110501050
    Material Options:
    Plastic/Poly
    Color:
    Gray
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    $163.99
    Qty in Cart: 0
    Price:
    $163.99
    Subtotal:
  • Stainless Steel Hardware For Fender Plates

    Stainless Steel Hardware For Fender Plates

    WTI FENDERS

    $3.87
    Hardware For Fender Plates- 3-3/8 X 1.25 Inch Bolt, 3-3/8 Inch Fender Washer, 3-3/8 Inch Std. Washer, 3-Nylock NutSecure your fender plates with this high-quality Stainless Steel Hardware Kit. This...
    09-111000049
    SKU:
    09-111000049
    Product Type:
    Rear Fenders
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $3.87
    Qty in Cart: 0
    Price:
    $3.87
    Subtotal:
  • PP1 Type Dash Control Valve Replaces 287600, 287600N, 287600X, BW287600N, 1681044C91, R955287600, 034014

    PP1 Type Dash Control Valve Replaces 287600, 287600N, 287600X, BW287600N, 1681044C91, R955287600, 034014

    AUTOMANN USA

    $29.68
    Push- Pull Dash Control ValveEnsure accurate air pressure control with this PP1 Type Dash Control Valve, engineered for heavy-duty trucks and commercial vehicles. It includes two 1/4-inch NPT...
    09-15010119
    SKU:
    09-15010119
    Product Type:
    Interior
    Rating:
    40 PSI
    Make:
    Universal Items
    $29.68
    Qty in Cart: 0
    Price:
    $29.68
    Subtotal:
  • 12V Solenoid Air Valve

    12V Solenoid Air Valve

    AFTERMARKET

    $72.99
    3.313 Inch 12V Solenoid Air ValveReliable air control starts with this 12V Solenoid Air Valve, built for heavy-duty trucks and trailers. Featuring two 1/8 NPT ports for flexible connections and a 0...
    09-07120006
    SKU:
    09-07120006
    Length Options:
    3 1/4 Inch
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $72.99
    Qty in Cart: 0
    Price:
    $72.99
    Subtotal:
  • Brake Shoe Washer 1.30 ID X 1.875 OD Replaces 32180, 820182, B-2019, E1113, 1229B1848, 1229G2971, 1229Q433, 35-1580

    Brake Shoe Washer 1.30 ID X 1.875 OD Replaces 32180, 820182, B-2019, E1113, 1229B1848, 1229G2971, 1229Q433, 35-1580

    AUTOMANN USA

    $0.56
    1.30 ID X 1.875 OD Brake Shoe WasherFor reliable brake shoe alignment and secure assembly, trust this high-quality Brake Shoe Washer. Measuring 1.30 inches inner diameter, 1.875 inches outer...
    09-05170287
    SKU:
    09-05170287
    Diameter Options:
    1 1/2 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $0.56
    Qty in Cart: 0
    Price:
    $0.56
    Subtotal:
  • Lincoln Chrome 6-5 X 36 Inch Chrome Miter Exhaust Stack

    Lincoln Chrome 6-5 X 36 Inch Chrome Miter Exhaust Stack

    LINCOLN CHROME

    $258.99
    6-5 X 36 Inch Miter Exhaust Stack By Lincoln ChromeBoost your truck's exhaust efficiency with this Lincoln Chrome 6-5 X 36 Inch Chrome Miter Exhaust Stack. Featuring a mitered top and plain end, it's...
    09-08653611
    SKU:
    09-08653611
    Location:
    Made In USA
    Finish Options:
    Chrome-Plated
    Height Options:
    36 Inch
    Product Type:
    Exhaust
    Style Options:
    Miter Cut
    Material Options:
    Steel
    Make:
    Universal Items
    $258.99
    Qty in Cart: 0
    Price:
    $258.99
    Subtotal:
  • E7 Type Brake Valve Replaces 287440

    E7 Type Brake Valve Replaces 287440

    AFTERMARKET

    $180.99
    E7 Type Brake ValveOptimize your truck's air brake system with this E7 Type Brake Valve, a replacement for 287440 designed for dual circuit foot operation. Featuring O-ring sealed flange ports, three...
    09-05170224
    SKU:
    09-05170224
    Make:
    Universal Items
    Product Type:
    Air, Electrical, & Safety
    $180.99
    Qty in Cart: 0
    Price:
    $180.99
    Subtotal:
  • Fan Clutch Solenoid Valve- 2 Pin

    Fan Clutch Solenoid Valve- 2 Pin

    AFTERMARKET

    $92.99
    Fan Clutch Solenoid ValveEnsure precise fan clutch operation and reliable engine cooling with this high-quality 2-Pin Fan Clutch Solenoid Valve. Designed for heavy-duty trucks, it features a 2-pin...
    09-07120007
    SKU:
    09-07120007
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $92.99
    Qty in Cart: 0
    Price:
    $92.99
    Subtotal:
  • BESTfit Camshaft Bushing 1.50 ID X 2.469 OD X 1.75 Inch Replaces M10WJ237X, E9792A, R617015

    BESTfit Camshaft Bushing 1.50 ID X 2.469 OD X 1.75 Inch Replaces M10WJ237X, E9792A, R617015

    BESTFIT TRUCK PARTS

    $8.35
    1.50 ID X 2.469 OD X 1.75 Inch Camshaft Bushing By BESTfitDepend on this BESTfit Camshaft Bushing to provide long-lasting, low-maintenance performance for your axles. Replacement for M10WJ237X,...
    09-05170150
    SKU:
    09-05170150
    Diameter Options:
    2 1/2 Inch
    Length Options:
    1 3/4 Inch
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $8.35
    Qty in Cart: 0
    Price:
    $8.35
    Subtotal:
  • 12V Fan Clutch Solenoid Valve- 2 Pin

    12V Fan Clutch Solenoid Valve- 2 Pin

    AFTERMARKET

    $91.99
    12V Fan Clutch Solenoid ValveMaintain precise engine cooling and optimal fan clutch performance with this high-quality 12V 2-Pin Fan Clutch Solenoid Valve. Designed for heavy-duty truck applications,...
    09-07120008
    SKU:
    09-07120008
    Length Options:
    3 1/4 Inch
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $91.99
    Qty in Cart: 0
    Price:
    $91.99
    Subtotal:
  • Brake Shoe Lock Screw Replaces 22139, B1213, E579A. 219297, 254253, S265D, S266D, S266D1, 34-1539 .M10HM130, 400103

    Brake Shoe Lock Screw Replaces 22139, B1213, E579A. 219297, 254253, S265D, S266D, S266D1, 34-1539 .M10HM130, 400103

    AUTOMANN USA

    $0.78
    0.938 Inch Brake Shoe Lock ScrewEnsure secure and reliable brake shoe installation with this high-quality Brake Shoe Lock Screw. Specifically engineered for Meritor drive axles measuring 18 Inch X 7...
    09-05170290
    SKU:
    09-05170290
    Length Options:
    1 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $0.78
    Qty in Cart: 0
    Price:
    $0.78
    Subtotal:
  • Cross Tube End Clip Replaces 8226-L26CP12A10, 48RU1856A, 267147C91

    Cross Tube End Clip Replaces 8226-L26CP12A10, 48RU1856A, 267147C91

    AUTOMANN USA

    $9.23
    Cross Tube End Clip For 1-5/8 Inch Tube* High Quality Cross Tube End Clip* TRW Friction Clamp Type* A/F: 0.937" Nut And Bolt With M16 - 1.5" Thread Included* 3 Inch Length* 1.687 Inch Diameter* Sold...
    09-05250086
    SKU:
    09-05250086
    Length Options:
    3 Inch
    Product Type:
    Frame & Chassis
    Diameter Options:
    1 1/2 Inch
    Make:
    Universal Items
    $9.23
    Qty in Cart: 0
    Price:
    $9.23
    Subtotal:
  • FREE SHIPPING OVER $249
    Black Plastic Air Line, 3/4 Inch OD - Sold Per Foot

    Black Plastic Air Line, 3/4 Inch OD - Sold Per Foot

    PARTS DISTRIBUTING

    $6.11
    Airline* High Quality Air Line * Made Of Plastic * 3/4 Inches* Sold By Foot* Warranty On Airline Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket...
    09-0508008
    SKU:
    09-0508008
    Truck Class:
    Heavy Duty
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $6.11
    Qty in Cart: 0
    Price:
    $6.11
    Subtotal:
  • King Pin Cap Replaces 001622, 1436610008, 143661-0008, 2HB777, 9HD828, R001622, R-001622

    King Pin Cap Replaces 001622, 1436610008, 143661-0008, 2HB777, 9HD828, R001622, R-001622

    AUTOMANN USA

    $16.52
    2.25 Inch King Pin CapProtect your king pin assembly with this high-quality King Pin Cap. Specifically engineered for 13K - 16K Westport axles, it features 2.0-inch, 20-thread construction, a 1...
    09-05200001
    SKU:
    09-05200001
    Diameter Options:
    2 1/4 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $16.52
    Qty in Cart: 0
    Price:
    $16.52
    Subtotal:
  • 15.25 Inch Hydraulic Disc Brake Rotor Replaces R4483020, E-14738

    15.25 Inch Hydraulic Disc Brake Rotor Replaces R4483020, E-14738

    AFTERMARKET

    $257.99
    15.25 Inch Hydraulic Disc RotorExperience superior braking efficiency with this 15.25 Inch Hydraulic Disc Brake Rotor. Its hat-shaped rotor design enhances heat dispersion and strength, while ten 0...
    09-05170235
    SKU:
    09-05170235
    Height Options:
    2 Inch
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $257.99
    Qty in Cart: 0
    Price:
    $257.99
    Subtotal:
  • 4-5-6 Inch Manual Slack Adjuster Replaces 278288, E2760, KN49020, R822011

    4-5-6 Inch Manual Slack Adjuster Replaces 278288, E2760, KN49020, R822011

    AFTERMARKET

    $67.99
    4-5-6 Inch Manual Slack AdjusterEngineered for heavy-duty air brake systems, this 4-5-6 Inch Manual Slack Adjuster is a direct replacement for 278288, E2760, KN49020, and R822011. With 4, 5, and...
    09-05170285
    SKU:
    09-05170285
    Position:
    Passenger Side
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $67.99
    Qty in Cart: 0
    Price:
    $67.99
    Subtotal:
  • Steel Adapter NPTF Male/NPSM F 45 Replaces 70643-1212, NPM12-NSFX12-45, G60142-1212, G601421212

    Steel Adapter NPTF Male/NPSM F 45 Replaces 70643-1212, NPM12-NSFX12-45, G60142-1212, G601421212

    AUTOMANN USA

    $14.31
    Swivel Steel Adapter, Thread 3/4 Inch-14Maintain reliable hydraulic connections with this high-quality Steel Adapter NPTF Male/NPSM F 45. Featuring a steel construction, a 0.720-inch inner diameter...
    09-02500249
    SKU:
    09-02500249
    Length Options:
    2 1/2 Inch
    Product Type:
    Cargo Control
    Material Options:
    Steel
    Diameter Options:
    3/4 Inch
    Make:
    Universal Items
    $14.31
    Qty in Cart: 0
    Price:
    $14.31
    Subtotal:
  • 16.930 Inch U-Shaped Air Disc Brake Rotor Replaces S-34172, S34172, D34172, D-34172

    16.930 Inch U-Shaped Air Disc Brake Rotor Replaces S-34172, S34172, D34172, D-34172

    AFTERMARKET

    $553.99
    16.930 Inch U-Shaped Air Disc RotorUpgrade your truck braking system with the 16.930 Inch U-Shaped Air Disc Brake Rotor. This high-quality U-shaped rotor is engineered to meet rigorous performance...
    09-05170236
    SKU:
    09-05170236
    Height Options:
    6 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $553.99
    Qty in Cart: 0
    Price:
    $553.99
    Subtotal:
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Adding your products to cart

Shop Kenworth T800 Parts & Accessories

Restore or customize your Class 7 or 8 vocational rig with our massive inventory of heavy-duty Kenworth T800 parts and Kenworth T800 accessories. We stock direct-fit aftermarket components from top-tier brands to keep your heavy-hauler running strong and looking sharp.

Direct-Fit Kenworth T800 Replacement Parts

Reduce downtime with our selection of commercial-grade repair components. Find durable replacement parts for every area of your rig, including drivetrain components, HVAC systems, engine cooling (CACs and radiators), brake parts, and steering U-joints.

Exterior Chrome & Custom Lighting

Build a custom show rig or upgrade your daily driver with exact-fit exterior accessories:

Kenworth T800 Interior Accessories

Improve sleeper bunk comfort, in-cab organization, and dashboard appeal. Refresh your cabin with direct-fit Kenworth T800 interior dash panels and heavy-duty Kenworth T800 cab flooring upgrades.

Why Buy Kenworth T800 Parts From 4 State Trucks?

Dealership OEM parts are often expensive and backordered. Our aftermarket and OEM-equivalent parts deliver the reliability you need to stay on the road, alongside several key advantages:

Better Value: Significant cost savings and faster shipping replacement times than OEM.

Guaranteed Fitment: Commercial-grade parts engineered exactly for your truck's year and model.

Maximum Customization: A broader array of styles, finishes, and designs than the factory offers.

For 45 years, owner-operators, diesel repair shops, and fleet managers have trusted 4 State Trucks. Get fast shipping and real-time support from a team that knows and loves big rigs.

Frequently Asked Questions About Kenworth T800 Parts

What years are your Kenworth T800 parts compatible with, and how do I verify fitment for my specific truck?

Our Kenworth T800 parts are designed to fit models from 1987 through 2014, though specific compatibility varies by part. To verify fitment, check your truck's OEM plate located on the driver's side door jamb and note your exact model year and configuration (hood length, axle configuration). For bumpers and exterior parts, also note whether you have a set-forward or set-back front axle. When in doubt, contact our support team with your OEM and we'll confirm compatibility before you order.

Are your T800 bumpers made from chrome-plated steel or stainless steel, and what's the difference in durability?

We offer both chrome-plated steel and polished stainless steel bumpers for the T800. Chrome-plated bumpers provide an excellent mirror finish at a lower price point but require regular maintenance to prevent rust, especially in areas with road salt. Stainless steel bumpers cost more initially but resist corrosion without special care and maintain their appearance longer. For trucks operating in harsh weather conditions or coastal areas, we recommend stainless steel for its superior longevity.

Do I need to drill new holes or make modifications to install replacement bumpers and grilles on my T800?

Most of our T800 replacement bumpers and grilles are designed as direct bolt-on replacements using existing mounting points. However, if you're upgrading from a standard bumper to a heavy-duty or custom style, some drilling may be required. Each product page specifies whether modifications are needed. Basic installation typically requires standard hand tools and takes 2-4 hours. We include detailed instructions with each part, and mounting hardware is included unless otherwise noted.

What's the difference between OEM-style and aftermarket T800 parts in terms of fit and quality?

OEM-style parts are manufactured to match original Kenworth specifications exactly, ensuring precise fit and finish. Aftermarket options often provide enhanced features like heavier gauge steel, additional chrome plating layers, or improved mounting systems. Both meet DOT requirements where applicable. Aftermarket parts typically offer better value and may include upgrades like pre-drilled light holes or reinforced mounting brackets that weren't available on original equipment.

Can I install T800 parts myself, or should I have a shop do it? What special tools are required?

Many T800 parts like mirror brackets, grab handles, and smaller accessories can be installed with basic tools in your own shop. Larger components like bumpers, hoods, and fenders are manageable with two people and standard tools including socket sets, wrenches, and a drill. You'll need a torque wrench for critical fasteners. Professional installation is recommended for air ride suspensions, complete exhaust systems, or if you're uncomfortable working with heavy components. Always support heavy parts properly during installation to prevent injury or damage.


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