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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.
  • Product
  • Qty in Cart
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  • Minimizer Holland 5th Wheels Slick Plate

    Minimizer Holland 5th Wheels Slick Plate

    MINIMIZER

    $353.99
    5th Wheels Slick Plate By MinimizerReduce wear and improve handling with the Minimizer Holland 5th Wheels Slick Plate, designed for the FW17 Gen2. This high-quality slick plate minimizes friction...
    29-051100034
    SKU:
    29-051100034
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $353.99
    Qty in Cart: 0
    Price:
    $353.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    Knock Out Degreaser- 16 Oz

    Knock Out Degreaser- 16 Oz

    AFTERMARKET

    Now: $6.50
    Was: $13.23
    16 Ounce Knock Out DegreaserExperience deep cleaning power with the Knock Out Degreaser, specially formulated to dissolve grease, grime, and brake dust on contact. Perfect for tires, wheels, engine...
    09-1703113
    SKU:
    09-1703113
    Product Type:
    Polishing
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Now: $6.50
    Was: $13.23
    Qty in Cart: 0
    Price:
    Now: $6.50
    Was: $13.23
    Subtotal:
  • Seats Inc Ultra Leather Seat Cushion Assembly For Legacy Silver Style Seat

    Seats Inc Ultra Leather Seat Cushion Assembly For Legacy Silver Style Seat

    SEATS INC

    $440.99
    Ultra Leather Seat Cushion Assembly By Seats IncBring luxury and comfort to your Legacy Silver Style seat with the Seats Inc Ultra Leather Seat Cushion Assembly. Made with high-quality Ultra Leather,...
    188004MN61
    SKU:
    188004MN61
    Material Options:
    Ultra Leather
    Product Type:
    Seats
    Make:
    Universal Items
    $440.99
    Qty in Cart: 0
    Price:
    $440.99
    Subtotal:
  • Twelve Gauge New Generation Air Ride Air Bag

    Twelve Gauge New Generation Air Ride Air Bag

    TWELVE GAUGE

    $263.00
    Replacement New Generation Air Ride Air Bag By Twelve GaugeExperience advanced ride comfort with the Twelve Gauge New Generation Air Ride Air Bag, engineered for new air ride suspension systems. This...
    29-051000028
    SKU:
    29-051000028
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $263.00
    Qty in Cart: 0
    Price:
    $263.00
    Subtotal:
  • Piston Skull Shift Knob With 1/2 Inch - 13 Thread Adapter

    Piston Skull Shift Knob With 1/2 Inch - 13 Thread Adapter

    TWISTED SHIFTERZ

    $93.99
    2.5 X 3.75 X 3 Inch Piston Skull Shift KnobAdd personality and performance to your truck with the Piston Skull Shift Knob. Crafted for durability and style, this high-quality knob features a unique...
    09-1513205
    SKU:
    09-1513205
    Length Options:
    3 Inch
    Height Options:
    3 1/2 Inch
    Product Type:
    Interior
    Width Options:
    2 1/2 Inch
    Make:
    Universal Items
    $93.99
    Qty in Cart: 0
    Price:
    $93.99
    Subtotal:
  • Black Poly Single Axle Fender W/ Underside Ribs For 22 - 24 Inch Wheel Size

    Black Poly Single Axle Fender W/ Underside Ribs For 22 - 24 Inch Wheel Size

    TRAMEC SLOAN

    $421.99
    Poly Single Axle Fender Black W/ Underside RibsThe Black Poly Single Axle Fender for 22-24 Inch Wheels delivers high-strength protection and corrosion-free performance for your trailer's stationary...
    09-110500497
    SKU:
    09-110500497
    Color:
    Black
    Material Options:
    Plastic/Poly
    Product Type:
    Exterior
    Make:
    Universal Items
    $421.99
    Qty in Cart: 0
    Price:
    $421.99
    Subtotal:
  • Merritt 72 X 34.5 Inch Diamond Plate Aluminum Deck Cover W/ Stiffeners

    Merritt 72 X 34.5 Inch Diamond Plate Aluminum Deck Cover W/ Stiffeners

    MERRITT

    $698.99
    72 X 34.5 Inch Diamond Plate Deck Cover By MerrittGive your truck a durable, professional upgrade with the Merritt Diamond Plate Aluminum Deck Cover with Stiffeners. Made from premium aluminum, the...
    159
    SKU:
    159
    Length Options:
    72 Inch
    Width Options:
    34 Inch
    Location:
    Made In USA
    Material Options:
    Aluminum
    Finish Options:
    Diamond Plate
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $698.99
    Qty in Cart: 0
    Price:
    $698.99
    Subtotal:
  • TPHD 66 Inch Stainless Steel 3 Rib Full Radius Fender W/ 2 Inch Flange

    TPHD 66 Inch Stainless Steel 3 Rib Full Radius Fender W/ 2 Inch Flange

    TPHD

    $448.99
    66 Inch Full Radius Fender W/ 2 Inch Flange By TPHDThe TPHD 66 Inch Stainless Steel 3 Rib Full Radius Fender with 2 Inch Flange delivers reliable wheel protection and professional-grade style. Built...
    09-110301012
    SKU:
    09-110301012
    Material Options:
    Stainless Steel
    Product Type:
    Exterior
    Size Options:
    16 Gauge
    Make:
    Universal Items
    $448.99
    Qty in Cart: 0
    Price:
    $448.99
    Subtotal:
  • FREE SHIPPING OVER $249
    New Car Air Freshener- 8 Oz

    New Car Air Freshener- 8 Oz

    AFTERMARKET

    $8.99
    8 Ounce Air Freshener- New Car ScentEnjoy the signature smell of a brand-new vehicle every time you drive with the New Car Air Freshener. This high-quality air freshener is formulated to eliminate...
    09-17070086
    SKU:
    09-17070086
    Product Type:
    Polishing
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $8.99
    Qty in Cart: 0
    Price:
    $8.99
    Subtotal:
  • 5Th Wheel Slider Retro Fit Kit

    5Th Wheel Slider Retro Fit Kit

    OPP - ORIGINAL PARTS PROGRAM

    $1,105.99
    5Th Wheel Slider KitKeep your fifth wheel sliding smoothly with the 5th Wheel Slider Retro Fit Kit, built for durability and reliability. Features include no-tilt shaft with handle, left and right...
    09-051100931
    SKU:
    09-051100931
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $1,105.99
    Qty in Cart: 0
    Price:
    $1,105.99
    Subtotal:
  • Bead It Up Plus Drying Agent- 5 Gallon

    Bead It Up Plus Drying Agent- 5 Gallon

    AFTERMARKET

    $92.99
    5 Gallon Bead It Up Plus Drying AgentKeep vehicles looking pristine with Bead It Up Plus Drying Agent. Engineered for automatic carwashes, it provides high-quality water beading, surface durability,...
    09-1703139
    SKU:
    09-1703139
    Product Type:
    Polishing
    Capacity:
    5 Gallons
    Make:
    Universal Items
    $92.99
    Qty in Cart: 0
    Price:
    $92.99
    Subtotal:
  • Supreme All-In-One Cleaner- 1 Gallon

    Supreme All-In-One Cleaner- 1 Gallon

    AFTERMARKET

    $127.16
    1 Gallon Supreme All-In-One CleanerRestore shine and protect surfaces with the Supreme All-In-One Cleaner, a multi-functional polish and sealant designed for trucks and commercial vehicles. Perfect...
    09-1700010
    SKU:
    09-1700010
    Capacity:
    1 Gallon
    Product Type:
    Polishing
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $127.16
    Qty in Cart: 0
    Price:
    $127.16
    Subtotal:
  • Hardware Kit For Seat Base Adaptor For Kenworth

    Hardware Kit For Seat Base Adaptor For Kenworth

    IOWA CUSTOMS

    $40.79
    Kenworth Seat Base Adaptor Hardware KitAchieve precise installation with the Hardware Kit for Seat Base Adaptor for Kenworth. This high-quality kit provides all the necessary components for mounting...
    09-192069
    SKU:
    09-192069
    Product Type:
    Seats
    Make:
    Universal Items
    $40.79
    Qty in Cart: 0
    Price:
    $40.79
    Subtotal:
  • 30 Gallon Aluminum Hydraulic Tank W/ 4- 2 Inch NTP Filling Ports, Mounting Tray & Spring Kit

    30 Gallon Aluminum Hydraulic Tank W/ 4- 2 Inch NTP Filling Ports, Mounting Tray & Spring Kit

    ICONIC

    $2,453.99
    30 Gallon Hydraulic Tank Fits Between The Legs Of 76 Inch Iconic Headache RackUpgrade your hydraulic setup with the 30 Gallon Aluminum Hydraulic Tank, designed for precision fit and long-term...
    09-02500258
    SKU:
    09-02500258
    Capacity:
    30 Gallons
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $2,453.99
    Qty in Cart: 0
    Price:
    $2,453.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    Black Glacier Air Freshener- 1 Gallon

    Black Glacier Air Freshener- 1 Gallon

    AFTERMARKET

    Now: $16.81
    Was: $37.83
    1 Gallon Air Freshener- Black Glacier ScentSay goodbye to cab odors with the Black Glacier Air Freshener, formulated for powerful odor elimination. The Black Glacier fragrance provides a clean, crisp...
    09-1703154
    SKU:
    09-1703154
    Product Type:
    Polishing
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Now: $16.81
    Was: $37.83
    Qty in Cart: 0
    Price:
    Now: $16.81
    Was: $37.83
    Subtotal:
  • Oval Glo LED Light W/ Bezel- Amber LEDs/Clear Lens

    Oval Glo LED Light W/ Bezel- Amber LEDs/Clear Lens

    ROADWORKS

    $46.04
    2 Diode Oval Glo LED Light W/ Bezel- Amber LEDs/Clear LensLight up the road with the Oval Glo LED Light with Bezel, built for both performance and durability. Its amber LEDs behind a clear lens...
    09-1601011240
    SKU:
    09-1601011240
    Product Type:
    Lighting
    Shape Options:
    Oval
    Color:
    Amber/Clear
    Style Options:
    Bullet
    Location:
    Made In USA
    Make:
    Universal Items
    $46.04
    Qty in Cart: 0
    Price:
    $46.04
    Subtotal:
  • Brunner Aluminum Cab Rack W/ Tapered Sides 80 X 62 X 12-6 Inch

    Brunner Aluminum Cab Rack W/ Tapered Sides 80 X 62 X 12-6 Inch

    BRUNNER FABRICATION

    $5,636.99
    Aluminum Cab Rack W/ Tapered Sides 80 X 62 X 12-6 Inch By BrunnerWhen your cab rack needs to work as hard as your truck, the Brunner 80 x 62 Inch Aluminum Cab Rack with Center Window and Stainless...
    09-021300020
    SKU:
    09-021300020
    Length Options:
    6 Inch
    Style Options:
    Tapered
    Light Options:
    Without Lights
    Width Options:
    80 Inch
    Material Options:
    Stainless Steel
    Height Options:
    62 Inch
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $5,636.99
    Qty in Cart: 0
    Price:
    $5,636.99
    Subtotal:
  • Knoedler 1 Inch Low Base Adapter 1.250 Inches Shorter Than Standard Base

    Knoedler 1 Inch Low Base Adapter 1.250 Inches Shorter Than Standard Base

    KNOEDLER

    $74.99
    1 Inch Low Base AdapterEnhance your truck driving experience with the Knoedler 1 Inch Low Base Adapter. Crafted for low-riding Knoedler seats, it lowers the seat by 1.250 inches to improve ergonomics...
    09-192065
    SKU:
    09-192065
    Product Type:
    Seats
    Make:
    Universal Items
    $74.99
    Qty in Cart: 0
    Price:
    $74.99
    Subtotal:
  • 3 Inch Diameter Cone Polishing Pad

    3 Inch Diameter Cone Polishing Pad

    AFTERMARKET

    $11.23
    Cone Polishing Pad- 3 InchTake your truck detailing and restoration to the next level with the 3 Inch Diameter Cone Polishing Pad, engineered for precision polishing in challenging areas. Its...
    09-1701131
    SKU:
    09-1701131
    Material Options:
    Cotton
    Product Type:
    Polishing
    Make:
    Universal Items
    $11.23
    Qty in Cart: 0
    Price:
    $11.23
    Subtotal:
  • TPHD 80 Inch Stainless Steel Single Axle Fender W/ 1.5 Inch Flange

    TPHD 80 Inch Stainless Steel Single Axle Fender W/ 1.5 Inch Flange

    TPHD

    $593.99
    80 Inch Single Axle Fender W/ 1.5 Inch Flange By TPHDDrive with confidence knowing your trailer is equipped with the TPHD 80 Inch Stainless Steel Single Axle Fender, engineered for robust wheel...
    09-110301016
    SKU:
    09-110301016
    Length Options:
    80 Inch
    Style Options:
    Flanged
    Material Options:
    Stainless Steel
    Product Type:
    Exterior
    Size Options:
    16 Gauge
    Make:
    Universal Items
    $593.99
    Qty in Cart: 0
    Price:
    $593.99
    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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