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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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  • Stage 1 Billet Wheel VGT Turbo Charger W/ Actuator For Cummins ISX15, X15 & QSX

    Stage 1 Billet Wheel VGT Turbo Charger W/ Actuator For Cummins ISX15, X15 & QSX

    BULLY DOG

    $4,750.00
    If your goal is smoother boost and reduced turbo lag, this Stage 1 VGT Turbo Charger offers a refined upgrade path. Featuring a billet aluminum compressor wheel and upgraded diffuser plates, the...
    PPR_300797
    SKU:
    PPR_300797
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Material Options:
    Billet Aluminum
    Make:
    Other - Semi-Truck
    Make:
    Universal Items
    $4,750.00
    Qty in Cart: 0
    Price:
    $4,750.00
    Subtotal:
  • Stage 1 Billet Wheel VGT Turbo Charger W/ Actuator For Cummins ISX 871

    Stage 1 Billet Wheel VGT Turbo Charger W/ Actuator For Cummins ISX 871

    BULLY DOG

    $4,750.00
    Maximize torque, efficiency, and reliability with the Stage 1 Billet Wheel VGT Turbo Charger with Actuator, replacing 3774613/2881993/4309078 for Cummins ISX 871 engines. The aluminum billet...
    PPR_300799
    SKU:
    PPR_300799
    Material Options:
    Billet Aluminum
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Make:
    Other - Semi-Truck
    Make:
    Universal Items
    $4,750.00
    Qty in Cart: 0
    Price:
    $4,750.00
    Subtotal:
  • Stage 1 Billet Wheel VGT Turbo Charger W/ Actuator For Cummins ISB 6.7L

    Stage 1 Billet Wheel VGT Turbo Charger W/ Actuator For Cummins ISB 6.7L

    BULLY DOG

    $4,398.00
    Boost your Cummins ISB 6.7L performance with the Stage 1 Billet Wheel VGT Turbo Charger with Actuator, a direct replacement for 3789505/6411490/6411519. Its aluminum billet wheel, Cobalt VGT cage,...
    PPR_300800
    SKU:
    PPR_300800
    Product Type:
    Engine Parts
    Material Options:
    Billet Aluminum
    Style Options:
    Cummins
    Make:
    Other - Semi-Truck
    Make:
    Universal Items
    $4,398.00
    Qty in Cart: 0
    Price:
    $4,398.00
    Subtotal:
  • VC 18 Inch Chrome Bumper W/ Open Ends, Mounting, 2 Tow Pin & Center Tow/Hitch Holes For Kenworth T800 & T880

    VC 18 Inch Chrome Bumper W/ Open Ends, Mounting, 2 Tow Pin & Center Tow/Hitch Holes For Kenworth T800 & T880

    VALLEY CHROME PLATING

    $1,021.99
    18 Inch Chrome Bumper W/ Open Ends, Mounting, 2 Tow Pin & Center Tow/Hitch Holes By Valley Chrome Fits Kenworth T800 & T880Built for performance and polished to impress, this 18 Inch Chrome Open...
    FN0110142T
    SKU:
    FN0110142T
    Location:
    Made In USA
    Style Options:
    Open End
    Finish Options:
    Chrome-Plated
    Light Options:
    Without Lights
    Height Options:
    18 Inch
    Material Options:
    Steel
    Size Options:
    7 Gauge
    Truck Class:
    Heavy Duty
    Product Type:
    Bumpers
    Make:
    Kenworth
    $1,021.99
    Qty in Cart: 0
    Price:
    $1,021.99
    Subtotal:
  • Load- Share Steer Axle Ride Kit Fits 3.5 Or 4 Inch Leaf Spring With Square Top U-Bolts & Standard U-Bolt Spacing

    Load- Share Steer Axle Ride Kit Fits 3.5 Or 4 Inch Leaf Spring With Square Top U-Bolts & Standard U-Bolt Spacing

    LOAD-SHARE SUSPENSIONS

    $1,085.99 - $1,252.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of TrucksLoad- Share Steer Axle Ride Kit Fits 3.5 Inch Leaf-Spring With Square-Top U-Bolts & Standard U-Bolt...
    PPR_300796
    SKU:
    PPR_300796
    Position:
    Kit Full
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $1,085.99 - $1,252.99
    Qty in Cart: 0
    Price:
    $1,085.99 - $1,252.99
    Subtotal:
  • 304 SS Quarter Fender Bracket For Peterbilt Low Air & Kenworth AG400L Suspension

    304 SS Quarter Fender Bracket For Peterbilt Low Air & Kenworth AG400L Suspension

    HOGEBUILT FENDERS

    $455.99
    Choose Option(s) to see description.Fitment* Fits Kenworth C500 2005 thru Current* Fits Kenworth K260 2007 thru 2012* Fits Kenworth K360 2007 thru 2012* Fits Kenworth K270 2013 thru Current* Fits...
    PPR_300784
    SKU:
    PPR_300784
    Material Options:
    Stainless Steel
    Position:
    Driver Side
    Product Type:
    Rear Fenders
    Truck Class:
    Heavy Duty
    Position:
    Passenger Side
    Make:
    Kenworth
    Make:
    Peterbilt
    $455.99
    Qty in Cart: 0
    Price:
    $455.99
    Subtotal:
  • Rectangular Dome Light Lens For Kenworth & Peterbilt 359

    Rectangular Dome Light Lens For Kenworth & Peterbilt 359

    GRAND GENERAL

    $2.68 - $2.80
    Choose Option(s) to see description.Fitment* Fits Kenworth Cabover 1961 thru 2002* Fits Kenworth K100 1963 thru 1967* Fits Kenworth K100C 1968 thru 1983* Fits Kenworth K100E 1984 thru 2002* Fits...
    PPR_300789
    SKU:
    PPR_300789
    Color:
    Blue
    Color:
    Purple
    Color:
    Green
    Truck Class:
    Heavy Duty
    Product Type:
    Interior
    Make:
    Kenworth
    Make:
    Peterbilt
    $2.68 - $2.80
    Qty in Cart: 0
    Price:
    $2.68 - $2.80
    Subtotal:
  • BESTfit Square Hood Bushing Replaces For Kenworth & Peterbilt

    BESTfit Square Hood Bushing Replaces For Kenworth & Peterbilt

    BESTFIT TRUCK PARTS

    $13.87 - $15.72
    Reduce Hood Vibration and Wear with the BESTfit Square Rubber or Poly Hood Bushing for Kenworth and Peterbilt. Crafted from premium materials, this square bushing with a 0.50-inch inner diameter...
    PPR_300787
    SKU:
    PPR_300787
    Material Options:
    Plastic/Poly
    Shape Options:
    Square
    Product Type:
    Hood Parts & Acc.
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Make:
    Peterbilt
    $13.87 - $15.72
    Qty in Cart: 0
    Price:
    $13.87 - $15.72
    Subtotal:
  • FREE SHIPPING OVER $249
    Steel Fender Rear Mounting Bracket For Peterbilt Low Airleaf & Kenworth Ag400L Suspension 2005 & Newer

    Steel Fender Rear Mounting Bracket For Peterbilt Low Airleaf & Kenworth Ag400L Suspension 2005 & Newer

    SHIFT PRODUCTS

    $149.99
    This steel fender bracket is made for installing the fender on either the driver side or passenger side of Peterbilt Low Airleaf trucks from 2005 and newer, as well as Kenworth trucks with AG400L...
    PPR_300780
    SKU:
    PPR_300780
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Position:
    Driver Side
    Position:
    Passenger Side
    Product Type:
    Rear Fenders
    Make:
    Kenworth
    Make:
    Peterbilt
    $149.99
    Qty in Cart: 0
    Price:
    $149.99
    Subtotal:
  • Driver/Passenger Side Steel Half Fender Bracket For Peterbilt Low Airleaf & Kenworth Ag400L Suspension

    Driver/Passenger Side Steel Half Fender Bracket For Peterbilt Low Airleaf & Kenworth Ag400L Suspension

    SHIFT PRODUCTS

    $170.99
    This half fender bracket is designed for secure mounting of fiberglass fenders on Peterbilt trucks with Low Airleaf suspension (2005 and newer) and Kenworth trucks with AG400L suspension. Made for...
    PPR_300783
    SKU:
    PPR_300783
    Position:
    Driver Side
    Position:
    Passenger Side
    Product Type:
    Rear Fenders
    Material Options:
    Steel
    Type Options:
    Half
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Make:
    Peterbilt
    $170.99
    Qty in Cart: 0
    Price:
    $170.99
    Subtotal:
  • BESTfit Hood Pivot Bushing For Kenworth & Peterbilt

    BESTfit Hood Pivot Bushing For Kenworth & Peterbilt

    BESTFIT TRUCK PARTS

    $23.12 - $26.83
    Restore accurate hood alignment on Kenworth and Peterbilt trucks with the BESTfit Hood Pivot Bushing, replacement for OEM L13-6006. This high-quality rubber or poly bushing measures 4.625 inches...
    PPR_300786
    SKU:
    PPR_300786
    Material Options:
    Plastic/Poly
    Product Type:
    Hood Parts & Acc.
    Shape Options:
    Rectangular
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Make:
    Peterbilt
    Ready To Ship:
    Yes
    $23.12 - $26.83
    Qty in Cart: 0
    Price:
    $23.12 - $26.83
    Subtotal:
  • Stainless Steel Rear Fender Bracket For Peterbilt Low Airleaf & Kenworth Ag400L Suspension 2005 & Newer

    Stainless Steel Rear Fender Bracket For Peterbilt Low Airleaf & Kenworth Ag400L Suspension 2005 & Newer

    SHIFT PRODUCTS

    $155.99 - $162.99
    Choose Option(s) to see description.Fitment* Fits Kenworth T2000 2005 thru 2010* Fits Kenworth T300 2005 thru 2007* Fits Kenworth T370 2009 thru 2021* Fits Kenworth T600 Aerocab 2005 thru 2007* Fits...
    PPR_300781
    SKU:
    PPR_300781
    Material Options:
    Steel
    Product Type:
    Rear Fenders
    Truck Class:
    Heavy Duty
    Position:
    Driver Side
    Position:
    Passenger Side
    Make:
    Kenworth
    Make:
    Peterbilt
    Ready To Ship:
    Yes
    $155.99 - $162.99
    Qty in Cart: 0
    Price:
    $155.99 - $162.99
    Subtotal:
  • Stainless Steel Fender Bracket Driver/Passenger Option For Peterbilt Flex Air And Kenworth Ag380 Suspension

    Stainless Steel Fender Bracket Driver/Passenger Option For Peterbilt Flex Air And Kenworth Ag380 Suspension

    SHIFT PRODUCTS

    $162.99 - $177.99
    Choose Option(s) to see description.Fitment* Fits Peterbilt 330 2002 thru 2005* Fits Peterbilt 335 2005 thru 2010* Fits Peterbilt 337 2014 thru 2022* Fits Peterbilt 340 2007 thru 2010* Fits Peterbilt...
    PPR_300782
    SKU:
    PPR_300782
    Material Options:
    Steel
    Position:
    Passenger Side
    Truck Class:
    Heavy Duty
    Product Type:
    Rear Fenders
    Position:
    Driver Side
    Make:
    Kenworth
    Make:
    Peterbilt
    $162.99 - $177.99
    Qty in Cart: 0
    Price:
    $162.99 - $177.99
    Subtotal:
  • On Sale
    FREE SHIPPING OVER $249
    Limited Quantity Available
    Legendary Underboss Large Glass Watermelon 4 Wire Dual Function W/ Stainless Bezel LED Light - Each

    Legendary Underboss Large Glass Watermelon 4 Wire Dual Function W/ Stainless Bezel LED Light - Each

    LEGENDARY

    Now: $42.49
    Was: $49.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksLegendary Underboss Large Glass Watermelon Amber-Blue-Clear 4 Wire Dual Function W/ Stainless Bezel LED...
    PPR_300765
    SKU:
    PPR_300765
    Color:
    Amber/Green
    Color:
    Red/Blue
    Diameter Options:
    3 1/2 Inch
    Style Options:
    Watermelon
    Color:
    Amber/Blue
    Color:
    Amber/White
    Color:
    Amber/Red
    Color:
    Red/White
    Color:
    Red/Purple
    Position:
    Under
    Color:
    Amber/Purple
    Color:
    Red/Green
    Material Options:
    Glass
    Make:
    Universal Items
    Make:
    Dodge
    Product Type:
    Lighting
    Ready To Ship:
    Yes
    Now: $42.49
    Was: $49.99
    Qty in Cart: 0
    Price:
    Now: $42.49
    Was: $49.99
    Subtotal:
  • BESTfit John Deere Gasket 10.875 Inch ID 11.750 Inch OD

    BESTfit John Deere Gasket 10.875 Inch ID 11.750 Inch OD

    BESTFIT TRUCK PARTS

    $18.99
    10.875 Inch ID 11.750 Inch OD John Deere Gasket By BESTfitUpgrade your exhaust sealing system with the BESTfit John Deere Gasket, designed for John Deere applications and built to replace worn or...
    80-08090002
    SKU:
    80-08090002
    Product Type:
    Exhaust
    Make:
    Universal Items
    $18.99
    Qty in Cart: 0
    Price:
    $18.99
    Subtotal:
  • BESTfit Diesel Particulate Filter For Cummins ISM Engine Replaces 4352989, AMN1003, C0022SA

    BESTfit Diesel Particulate Filter For Cummins ISM Engine Replaces 4352989, AMN1003, C0022SA

    BESTFIT TRUCK PARTS

    $1,797.99
    Diesel Particulate Filter By BESTfit Replaces 4352989, AMN1003, C0022SA Fits Cummins ISM EngineMaintain optimal emissions performance with the BESTfit Cummins DPF for ISM engines. Replacing OEM part...
    29-08090076
    SKU:
    29-08090076
    Style Options:
    Cummins
    Product Type:
    Exhaust
    Make:
    Universal Items
    $1,797.99
    Qty in Cart: 0
    Price:
    $1,797.99
    Subtotal:
  • BESTfit NOx Sensor For Caterpillar Replaces 10041056, 4415129, 5390117

    BESTfit NOx Sensor For Caterpillar Replaces 10041056, 4415129, 5390117

    BESTFIT TRUCK PARTS

    $390.99
    NOx Sensor By BESTfit Replaces 10041056, 4415129, 5390117 Fits CaterpillarEnsure reliable emissions control and accurate engine performance with the BESTfit Caterpillar NOx Sensor, designed as a...
    29-08090072
    SKU:
    29-08090072
    Style Options:
    Caterpillar
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $390.99
    Qty in Cart: 0
    Price:
    $390.99
    Subtotal:
  • Bostrom 20 Inch Gray Mordura Cloth Mid Back Captain Seat W/ Low Base, Dual Armrest & Single Lumbar

    Bostrom 20 Inch Gray Mordura Cloth Mid Back Captain Seat W/ Low Base, Dual Armrest & Single Lumbar

    BOSTROM TRUCK SEATS

    $1,058.99
    20 Inch Gray Mordura Cloth Mid Back Captain Seat W/ Low Base, Dual Armrest & Single Lumbar By BostromUpgrade your truck interior with the Bostrom Gray Mordura Cloth Mid Back Captain Seat, built for...
    60196361
    SKU:
    60196361
    Product Type:
    Seats
    Material Options:
    Cloth
    Color:
    Gray
    Width Options:
    20 Inch
    Style Options:
    Mid Back
    Make:
    Universal Items
    $1,058.99
    Qty in Cart: 0
    Price:
    $1,058.99
    Subtotal:
  • BESTfit NOx Sensor For Cummins Replaces 5EL039, 2894946RX, 2894946NX

    BESTfit NOx Sensor For Cummins Replaces 5EL039, 2894946RX, 2894946NX

    BESTFIT TRUCK PARTS

    $390.99
    NOx Sensor By BESTfit Replaces 5EL039, 2894946RX, 2894946NX Fits CumminsEnsure accurate emissions control and optimal engine performance with the BESTfit Cummins NOx Sensor, a direct replacement for...
    29-08090068
    SKU:
    29-08090068
    Product Type:
    Exhaust
    Style Options:
    Cummins
    Make:
    Universal Items
    $390.99
    Qty in Cart: 0
    Price:
    $390.99
    Subtotal:
  • BESTfit Hydrocarbon Injector Metering Unit Replaces 0444030007, 0444030007, A4710700055

    BESTfit Hydrocarbon Injector Metering Unit Replaces 0444030007, 0444030007, A4710700055

    BESTFIT TRUCK PARTS

    $394.99
    Hydrocarbon Injector Metering Unit By BESTfitMaintain efficient aftertreatment performance with the BESTfit Hydrocarbon Injector Metering Unit, designed as a direct replacement for part numbers...
    29-08090075
    SKU:
    29-08090075
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $394.99
    Qty in Cart: 0
    Price:
    $394.99
    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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