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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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  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • AirDog Fuel Pressure Splice W/ 1/8 Inch NPT Center Fitting Port

    AirDog Fuel Pressure Splice W/ 1/8 Inch NPT Center Fitting Port

    AIRDOG HD

    $13.00
    Fuel Pressure Splice W/ 1/8 Inch NPT Center Fitting Port By AirDog* High Quality Fuel Pressure Splice* Designed To Go Into A 1/2 Inch Fuel Hose* Includes:  - 1/8 Inch NPT Center Fitting Port* Sold...
    09-07030172
    SKU:
    09-07030172
    Product Type:
    Engine Parts
    Location:
    Made In USA
    Make:
    Universal Items
    $13.00
    Qty in Cart: 0
    Price:
    $13.00
    Subtotal:
  • Air Dryer Blow Off Diverter Kit Flexible Molded Rubber W/ Stainless Steel Hose Clamp

    Air Dryer Blow Off Diverter Kit Flexible Molded Rubber W/ Stainless Steel Hose Clamp

    4 STATE TRUCKS

    $9.99
    Flexible Molded Rubber Air Dryer Blow Off Diverter Kit W/ Stainless Steel Hose Clamp* High Quality Air Dryer Blow-Off Diverter Kit* Made Of Flexible Molded Rubber* Heat, Moisture, Road Chemicals, And...
    09-05170519K
    SKU:
    09-05170519K
    Position:
    Kit Full
    Location:
    Made In USA
    Material Options:
    Rubber
    Product Type:
    Lighting
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $9.99
    Qty in Cart: 0
    Price:
    $9.99
    Subtotal:
  • Aluminum Deck Plate 9 X 23.5 X 1.25 Inch W/ Mounting Kit & Hardware

    Aluminum Deck Plate 9 X 23.5 X 1.25 Inch W/ Mounting Kit & Hardware

    ICONIC

    $248.99
    9 X 23.5 X 1.25 Inch Aluminum Deck Plate W/ Mounting Kit & Hardware* High Quality Deck Plate* Made Of 1/8 Inch Aluminum* Tread Grip Punched Design* Includes:  - (1) Deck Plate  - Mounting Kit  -...
    09-05030108
    SKU:
    09-05030108
    Location:
    Made In USA
    Width Options:
    32 1/2 Inch
    Position:
    Kit Full
    Height Options:
    1 1/4 Inch
    Finish Options:
    Treaded
    Material Options:
    Aluminum
    Length Options:
    9 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $248.99
    Qty in Cart: 0
    Price:
    $248.99
    Subtotal:
  • Smooth Aluminum Big Mouth Step Box Toolbox 36 X 24 X 29.13 Inch W/ 1 Stainless Steel T Handle

    Smooth Aluminum Big Mouth Step Box Toolbox 36 X 24 X 29.13 Inch W/ 1 Stainless Steel T Handle

    ICONIC

    $1,069.99
    36 X 24 X 29.13 Inch Smooth Aluminum Big Mouth Step Box Toolbox W/ 1 Stainless Steel T Handle* High Quality Toolbox* Made Of 1/8 Inch Aluminum* Big Mouth Step Box Style* 50% Larger Opening Than...
    09-020100880
    SKU:
    09-020100880
    Length Options:
    36 Inch
    Style Options:
    Big Mouth Style
    Finish Options:
    Smooth
    Material Options:
    Aluminum
    Location:
    Made In USA
    Width Options:
    29 Inch
    Height Options:
    24 Inch
    Product Type:
    Toolboxes
    Make:
    Universal Items
    $1,069.99
    Qty in Cart: 0
    Price:
    $1,069.99
    Subtotal:
  • Hogebuilt Tandem/Half Tandem Fender Mounting Bracket For Kenworth

    Hogebuilt Tandem/Half Tandem Fender Mounting Bracket For Kenworth

    HOGEBUILT FENDERS

    $362.99
    Tandem/Half Tandem Fender Mounting Bracket By Hogebuilt* High Quality Fender Mounting Bracket* Designed For Mounting Tandem Or Half Tandem Fenders (Fender Not Included)* Includes:  - (1) Triangle Arm...
    02-1110020
    SKU:
    02-1110020
    Location:
    Made In USA
    Type Options:
    Triangle Arm Mount
    Position:
    Kit Full
    Product Type:
    Rear Fenders
    Style Options:
    Tandum Fender
    Make:
    Kenworth
    $362.99
    Qty in Cart: 0
    Price:
    $362.99
    Subtotal:
  • Hogebuilt Quarter Fender Mounting Bracket For Kenworth

    Hogebuilt Quarter Fender Mounting Bracket For Kenworth

    HOGEBUILT FENDERS

    $475.99
    Quarter Fender Mounting Bracket By Hogebuilt* High Quality Fender Mounting Bracket* Designed For Mounting Quarter Fenders (Fender Not Included)* Includes:  - (1) Triangle Arm Mount* Sold...
    02-1110019
    SKU:
    02-1110019
    Material Options:
    Stainless Steel
    Location:
    Made In USA
    Type Options:
    Triangle Arm Mount
    Style Options:
    Quarter Fender
    Product Type:
    Rear Fenders
    Make:
    Kenworth
    $475.99
    Qty in Cart: 0
    Price:
    $475.99
    Subtotal:
  • Hogebuilt Tandem/Half Tandem Fender Mounting Bracket Driver Side For Kenworth

    Hogebuilt Tandem/Half Tandem Fender Mounting Bracket Driver Side For Kenworth

    HOGEBUILT FENDERS

    $475.99
    Driver Side Tandem/Half Tandem Fender Mounting Bracket By Hogebuilt* High Quality Fender Mounting Bracket* Designed For Mounting Tandem Or Half Tandem Fenders (Fender Not Included)* Includes:  - (1)...
    02-1110021
    SKU:
    02-1110021
    Product Type:
    Rear Fenders
    Position:
    Driver Side
    Material Options:
    Stainless Steel
    Type Options:
    Triangle Arm Mount
    Location:
    Made In USA
    Style Options:
    Tandum Fender
    Make:
    Kenworth
    $475.99
    Qty in Cart: 0
    Price:
    $475.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Copper Primary Wire W/ Smooth Surface, Stranded Annealed & Options

    Copper Primary Wire W/ Smooth Surface, Stranded Annealed & Options

    UNITED PACIFIC

    $7.99 - $8.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksGreen 18 Gauge Copper Primary Wire 30 Ft Length W/ Smooth Surface & Stranded AnnealedPrimary Wire 30 Ft...
    PPR_301271
    SKU:
    PPR_301271
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $7.99 - $8.99
    Qty in Cart: 0
    Price:
    $7.99 - $8.99
    Subtotal:
  • Dual Function Watermelon LED Clearance & Marker Light W/ LED & Lens Color Option

    Dual Function Watermelon LED Clearance & Marker Light W/ LED & Lens Color Option

    UNITED PACIFIC

    $11.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksWhite Dual Function Watermelon LED Clearance & Marker Light W/ Clear LensWhite Dual Function Watermelon...
    PPR_301264
    SKU:
    PPR_301264
    Product Type:
    Lighting
    Make:
    Universal Items
    $11.99
    Qty in Cart: 0
    Price:
    $11.99
    Subtotal:
  • Front Axle Cover W/ 10 33 MM Thread On Cylinder Style Nut Cover 13.8125 X 4.25 Inch & Removable Cap W/ Style Options

    Front Axle Cover W/ 10 33 MM Thread On Cylinder Style Nut Cover 13.8125 X 4.25 Inch & Removable Cap W/ Style Options

    UNITED PACIFIC

    $42.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksFront Axle Cover W/ Removable Dome Shape Cap & 10 33 MM Thread On Cylinder Style Nut Cover 13.8125 X 4...
    PPR_301252
    SKU:
    PPR_301252
    Product Type:
    Wheels
    Make:
    Universal Items
    $42.99
    Qty in Cart: 0
    Price:
    $42.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Fog Light Bezel Driver/Passenger Side Plastic

    Fog Light Bezel Driver/Passenger Side Plastic

    UNITED PACIFIC

    $15.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksFog Light Bezel Driver Side Plastic Replaces N18-1005Driver Side Plastic Fog Light Bezel* High Quality...
    PPR_301267
    SKU:
    PPR_301267
    Product Type:
    Lighting
    Make:
    Universal Items
    $15.99
    Qty in Cart: 0
    Price:
    $15.99
    Subtotal:
  • FREE SHIPPING
    Stainless Steel Mud Flap Hangers 30 Inch W/ 6 Round 4 Inch Dual LEDS W/ Color Options & 3/4 Inch Bolt Spacing

    Stainless Steel Mud Flap Hangers 30 Inch W/ 6 Round 4 Inch Dual LEDS W/ Color Options & 3/4 Inch Bolt Spacing

    TRUX ACCESSORIES

    $434.99 - $480.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks & TrailersStainless Steel Mud Flap Hanger 30 X 7.25 Inch W/ 3.75 Inch Bolt Spacing, 6 Round 4 Inch...
    PPR_301247
    SKU:
    PPR_301247
    Light Options:
    With Lights
    Style Options:
    With Bezel
    Finish Options:
    Polished
    Product Type:
    Bumpers
    Position:
    Rear
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Ready To Ship:
    Yes
    $434.99 - $480.99
    Qty in Cart: 0
    Price:
    $434.99 - $480.99
    Subtotal:
  • Oval Saber Light Bar 6.375 Inch LED Turn Signal Light W/ LED & Lens Color Options

    Oval Saber Light Bar 6.375 Inch LED Turn Signal Light W/ LED & Lens Color Options

    UNITED PACIFIC

    $15.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksAmber Oval Saber Light Bar 6.375 Inch LED Turn Signal Light W/ Amber LensAmber Oval Saber Light Bar 6...
    PPR_301263
    SKU:
    PPR_301263
    Product Type:
    Lighting
    Make:
    Universal Items
    $15.99
    Qty in Cart: 0
    Price:
    $15.99
    Subtotal:
  • Double Fury Dual Color LED 11 X 2.125 Inch Turn Signal Light W/ Clear Lens Driver/Passenger Side & LED Color Option

    Double Fury Dual Color LED 11 X 2.125 Inch Turn Signal Light W/ Clear Lens Driver/Passenger Side & LED Color Option

    UNITED PACIFIC

    $31.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksAmber/Blue Double Fury Dual Color LED 11 X 2.125 Inch Turn Signal Light W/ Clear Lens Driver SideDriver...
    PPR_301259
    SKU:
    PPR_301259
    Product Type:
    Lighting
    Make:
    Universal Items
    $31.99
    Qty in Cart: 0
    Price:
    $31.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Rocker Switch Caling Style W/ Options

    Rocker Switch Caling Style W/ Options

    UNITED PACIFIC

    $15.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksBlack 1 Piece Rocker Switch Carling Style On/Off W/ Single Post, Single Throw1 Piece Black Rocker...
    PPR_301279
    SKU:
    PPR_301279
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $15.99
    Qty in Cart: 0
    Price:
    $15.99
    Subtotal:
  • FREE SHIPPING
    Stainless Steel Rear Center Panel 33 X 3.24 X 20 Inch W/ 2 Red LED & 3 Dual Revolution Watermelon LED Color Options, 20 Inch Drop & Clear Lens

    Stainless Steel Rear Center Panel 33 X 3.24 X 20 Inch W/ 2 Red LED & 3 Dual Revolution Watermelon LED Color Options, 20 Inch Drop & Clear Lens

    TRUX ACCESSORIES

    $1,268.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksStainless Steel Rear Center Panel 33 X 3.24 X 20 Inch W/ 2 Red LED & 3 Dual Revolution Watermelon...
    PPR_301237
    SKU:
    PPR_301237
    Product Type:
    Bumpers
    Make:
    Universal Items
    $1,268.99
    Qty in Cart: 0
    Price:
    $1,268.99
    Subtotal:
  • Dual Function Crystal Comet LED 9 Diode Sleeper Light W/ LED & Lens Color Options

    Dual Function Crystal Comet LED 9 Diode Sleeper Light W/ LED & Lens Color Options

    UNITED PACIFIC

    $25.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksWhite Dual Function Crystal Comet LED 9 Diode Sleeper Light W/ Clear LensWhite Dual Function Crystal...
    PPR_301266
    SKU:
    PPR_301266
    Product Type:
    Lighting
    Make:
    Universal Items
    $25.99
    Qty in Cart: 0
    Price:
    $25.99
    Subtotal:
  • On Sale
    FREE SHIPPING OVER $249
    Limited Quantity Available
    3 Inch Square 30 LED Reflector Stop, Turn, Tail Double Face Light W/ Double Post - Amber & Red LED W/ Optional Auxiliary Colors

    3 Inch Square 30 LED Reflector Stop, Turn, Tail Double Face Light W/ Double Post - Amber & Red LED W/ Optional Auxiliary Colors

    TRUX ACCESSORIES

    $40.07 - $73.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks & TrailersAmber/Red Mini Square Double Face Compact LED Stop, Turn & Marker Light W/ Amber/Red...
    PPR_301251
    SKU:
    PPR_301251
    Material Options:
    Plastic/Poly
    Truck Class:
    Universal
    Product Type:
    Lighting
    Diameter Options:
    3 Inch
    Shape Options:
    Square
    Shape Options:
    Rectangular
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $40.07 - $73.99
    Qty in Cart: 0
    Price:
    $40.07 - $73.99
    Subtotal:
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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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