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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
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  • 3/4 Inch Round Marker/ Clearance LED Light W/ 2 .180 Bullets

    3/4 Inch Round Marker/ Clearance LED Light W/ 2 .180 Bullets

    PETERSON MFG

    $16.40
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of Trucks3/4 Inch Red Round Marker/ Clearance LED Light W/ 2 .180 Bullets3/4 Inch Round Marker/ Clearance LED...
    PPR_299322
    SKU:
    PPR_299322
    Style Options:
    LED
    Color:
    Red
    Color:
    Amber
    Product Type:
    Lighting
    Shape Options:
    Round
    Diameter Options:
    3/4 Inch
    Make:
    Universal Items
    Style Options:
    Bullet
    Material Options:
    Plastic/Poly
    Type Options:
    Grommet Mount
    Diameter Options:
    1 Inch
    $16.40
    Qty in Cart: 0
    Price:
    $16.40
    Subtotal:
  • 1/2 Inch- 13 Thread On 3 Skull Shift Knob

    1/2 Inch- 13 Thread On 3 Skull Shift Knob

    UNITED PACIFIC

    $41.99 - $53.99
    Choose Option(s) to see description.Chrome 3D Stacked Skull Shift Knob Thread On W/O Adapter5.625 Inch Thread On 3D Stacked Skull Shift Knob Chrome* High Quality Shift Knob* Made Of Aluminum* Triple...
    PPR_299328
    SKU:
    PPR_299328
    Color:
    Blue
    Color:
    Red
    Color:
    Black
    Diameter Options:
    1/2 Inch
    Color:
    Orange
    Color:
    Purple
    Style Options:
    Thread On
    Color:
    White
    Color:
    Yellow
    Product Type:
    Interior
    Material Options:
    Aluminum
    Color:
    Green
    Color:
    Silver
    Location:
    Made In USA
    Make:
    Universal Items
    Height Options:
    5 1/2 Inch
    Width Options:
    1 1/4 Inch
    Type Options:
    Thread On
    Finish Options:
    Chrome-Plated
    $41.99 - $53.99
    Qty in Cart: 0
    Price:
    $41.99 - $53.99
    Subtotal:
  • 6- Hole Axle Flange Gasket

    6- Hole Axle Flange Gasket

    AUTOMANN USA

    $2.91
    5.950 ID X 7.500 OD X 6.750 Inch Hub GasketWhen it comes to axle integrity, the 6-Hole Axle Flange Gasket delivers the durability and precision your truck demands. Featuring six 0.350-inch holes and...
    29-20200059
    SKU:
    29-20200059
    Shape Options:
    Round
    Product Type:
    Wheels
    Make:
    Universal Items
    Diameter Options:
    7 1/2 Inch
    $2.91
    Qty in Cart: 0
    Price:
    $2.91
    Subtotal:
  • Seat Air Bag Replaces 7208, W028127208, W023587208

    Seat Air Bag Replaces 7208, W028127208, W023587208

    AUTOMANN USA

    $46.63
    Sleeve Type Seat Air BagImprove seat suspension and driver comfort with the Seat Air Bag, a high-quality sleeve-type replacement for 7208, W028127208, and W023587208. The top plate includes a...
    29-19200024
    SKU:
    29-19200024
    Product Type:
    Seats
    Make:
    Universal Items
    Height Options:
    13 1/2 Inch
    Ready To Ship:
    Yes
    $46.63
    Qty in Cart: 0
    Price:
    $46.63
    Subtotal:
  • 6- Hole Hub Gasket Replaces 2208N430, GKT009, 453795, 120MF315

    6- Hole Hub Gasket Replaces 2208N430, GKT009, 453795, 120MF315

    AUTOMANN USA

    $1.33
    4.800 ID X 6.275 OD X 5.550 Inch Hub GasketOptimize the longevity and performance of your wheel assembly with the 6-Hole Hub Gasket, a reliable replacement for 2208N430, GKT009, 453795, and 120MF315...
    29-20200058
    SKU:
    29-20200058
    Product Type:
    Wheels
    Shape Options:
    Round
    Make:
    Universal Items
    Diameter Options:
    6 1/4 Inch
    Ready To Ship:
    Yes
    $1.33
    Qty in Cart: 0
    Price:
    $1.33
    Subtotal:
  • CSM Half Fender Mounting Bracket For Flex Air & AG380 Suspension

    CSM Half Fender Mounting Bracket For Flex Air & AG380 Suspension

    CHROME SHOP MAFIA

    $487.99
    Half Fender Mounting Bracket By Chrome Shop MafiaSecure your truck's half fenders with the CSM Half Fender Mounting Bracket for Flex Air and AG380 suspensions. Chrome Shop Mafia engineered this...
    29-1110050
    SKU:
    29-1110050
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    Type Options:
    Half Fender
    Style Options:
    Flex Air Suspension
    $487.99
    Qty in Cart: 0
    Price:
    $487.99
    Subtotal:
  • 5 Inch Steel Flat U- Bolt Saddle Clamp Replaces P206603, RO5, FB-5ZN, FB5ZN, EC50UZP, 35757

    5 Inch Steel Flat U- Bolt Saddle Clamp Replaces P206603, RO5, FB-5ZN, FB5ZN, EC50UZP, 35757

    AUTOMANN USA

    $8.62
    5 Inch U- Bolt Saddle ClampExperience long-lasting performance and secure mounting with the 5 Inch Steel Flat U-Bolt Saddle Clamp, designed for 5-inch diameter pipes and tubing. Its zinc-coated steel...
    29-08000038
    SKU:
    29-08000038
    Diameter Options:
    5 Inch
    Material Options:
    Steel
    Product Type:
    Exhaust
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $8.62
    Qty in Cart: 0
    Price:
    $8.62
    Subtotal:
  • EGR Cooler For Cummins ISX Engine Replaces 2869133, 2878071, 2881783, 2881783NX, 2682806, 2682986, 3683069, 36833253, 3683435, 4089166, 4089436, 4952490, 4956008, 4956008NX

    EGR Cooler For Cummins ISX Engine Replaces 2869133, 2878071, 2881783, 2881783NX, 2682806, 2682986, 3683069, 36833253, 3683435, 4089166, 4089436, 4952490, 4956008, 4956008NX

    AFTERMARKET

    $1,584.99
    Cummins ISX EGR CoolerImprove engine longevity and emissions performance with the EGR Cooler for Cummins ISX Engine, compatible with 1st Generation ISX engines 2003-2007. Designed to replace multiple...
    29-07110009
    SKU:
    29-07110009
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $1,584.99
    Qty in Cart: 0
    Price:
    $1,584.99
    Subtotal:
  • 8 Inch Clutch Grease Hose Replaces SPCLT008P

    8 Inch Clutch Grease Hose Replaces SPCLT008P

    AFTERMARKET

    $18.22
    Clutch Grease HoseDeliver consistent clutch performance with the 8 Inch Clutch Grease Hose, a high-quality replacement for SPCLT008P. Equipped with 1/8 Inch - 27 NPT ends, one end 0.050 Inch A/F and...
    29-07050024
    SKU:
    29-07050024
    Product Type:
    Engine Parts
    Make:
    Universal Items
    Length Options:
    8 Inch
    $18.22
    Qty in Cart: 0
    Price:
    $18.22
    Subtotal:
  • CSM Half Fender Mounting Bracket For Lo Air Leaf & AG400L Suspension

    CSM Half Fender Mounting Bracket For Lo Air Leaf & AG400L Suspension

    CHROME SHOP MAFIA

    $299.99
    Half Fender Mounting Bracket By Chrome Shop MafiaThe CSM Half Fender Mounting Bracket is a precision-engineered bracket set by Chrome Shop Mafia, designed for mounting 1/2 fenders on Lo Air Leaf and...
    29-1110049
    SKU:
    29-1110049
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    Style Options:
    Air Leaf Suspension
    Type Options:
    Half Fender
    $299.99
    Qty in Cart: 0
    Price:
    $299.99
    Subtotal:
  • U- Joint Strap Kit Replaces 205-70-19, N2057018X, 250N7018X, 2500675C91

    U- Joint Strap Kit Replaces 205-70-19, N2057018X, 250N7018X, 2500675C91

    AUTOMANN USA

    $25.66
    U- Joint Strap Kit For SPL250 SeriesKeep your driveshaft secure with this high-strength U-Joint Strap Kit, engineered for 205-70-19, N2057018X, 250N7018X, and 2500675C91. Featuring two durable caps...
    29-05210019
    SKU:
    29-05210019
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Position:
    Kit Full
    $25.66
    Qty in Cart: 0
    Price:
    $25.66
    Subtotal:
  • Pressure Protection Valve Replaces HDXKN20541, GTA20541, KN20541, N30103BB, 20QE3218M, RKN20541, TV20541

    Pressure Protection Valve Replaces HDXKN20541, GTA20541, KN20541, N30103BB, 20QE3218M, RKN20541, TV20541

    AUTOMANN USA

    $21.08
    Pressure Protection ValveExperience consistent air pressure control with this robust Pressure Protection Valve, replacing HDXKN20541, GTA20541, KN20541, N30103BB, 20QE3218M, RKN20541, and TV20541...
    29-051700039
    SKU:
    29-051700039
    Rating:
    65 PSI
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $21.08
    Qty in Cart: 0
    Price:
    $21.08
    Subtotal:
  • 4.06 To 4.38 Inch Stainless Steel T- Bolt Clamp Replaces B92240406, 32863, HTS406

    4.06 To 4.38 Inch Stainless Steel T- Bolt Clamp Replaces B92240406, 32863, HTS406

    AUTOMANN USA

    $11.94
    4.06 To 4.38 Inch T- Bolt ClampSecure your hose connections with this premium 4.06 to 4.38 Inch Stainless Steel T-Bolt Clamp, a reliable replacement for B92240406, 32863, and HTS406. Constructed from...
    29-070200029
    SKU:
    29-070200029
    Product Type:
    Engine Parts
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Width Options:
    3/4 Inch
    $11.94
    Qty in Cart: 0
    Price:
    $11.94
    Subtotal:
  • 5 Inch Aluminized Steel Pre- Formed Band Clamp Replaces K15067, N3550PLAG, W33970

    5 Inch Aluminized Steel Pre- Formed Band Clamp Replaces K15067, N3550PLAG, W33970

    AUTOMANN USA

    $10.02
    5 Inch Pre- Formed Band ClampBuilt for durability and performance, the 5 Inch Aluminized Steel Pre-Formed Band Clamp secures exhaust connections on 5-inch pipes with ease. Its lap joint and stepped...
    29-08000037
    SKU:
    29-08000037
    Shape Options:
    Round
    Diameter Options:
    5 Inch
    Product Type:
    Exhaust
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    $10.02
    Qty in Cart: 0
    Price:
    $10.02
    Subtotal:
  • 12V Air Dryer Assembly Replaces R955300, 4006110590

    12V Air Dryer Assembly Replaces R955300, 4006110590

    AUTOMANN USA

    $172.99
    SS1200P Type Air Dryer AssemblyKeep your truck's air system in peak condition with the 12V Air Dryer Assembly, a premium replacement for R955300 and 4006110590. This SS1200P assembly with external...
    29-051700037
    SKU:
    29-051700037
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $172.99
    Qty in Cart: 0
    Price:
    $172.99
    Subtotal:
  • Air Spring Rolling Lobe With Plastic Base Replaces W013589372, W014559372, W01M589372, 58520002, 585202, 64489002, 64489-2, 87QL57M, 25173616, 8083871, 68612, 910-18.5P095

    Air Spring Rolling Lobe With Plastic Base Replaces W013589372, W014559372, W01M589372, 58520002, 585202, 64489002, 64489-2, 87QL57M, 25173616, 8083871, 68612, 910-18.5P095

    AUTOMANN USA

    $299.99
    Replacement Air Spring Rolling LobeAchieve consistent suspension performance with the Air Spring Rolling Lobe with Plastic Base, engineered for precision, strength, and durability. This replacement...
    29-051000027
    SKU:
    29-051000027
    Diameter Options:
    10 Inch
    Material Options:
    Plastic/Poly
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $299.99
    Qty in Cart: 0
    Price:
    $299.99
    Subtotal:
  • Relay Valve Replaces EMDKN28510N, KN28510X, 5396KN28510, KN28510, N30108BL, 034057

    Relay Valve Replaces EMDKN28510N, KN28510X, 5396KN28510, KN28510, N30108BL, 034057

    AUTOMANN USA

    $38.75
    RG2 Type Relay ValveTake control of your air brake system with confidence using this robust RG2 Relay Valve. Built for heavy-duty trucks, it features a 5.6 PSI crack pressure and a 1.5-inch...
    29-051700038
    SKU:
    29-051700038
    Diameter Options:
    1/2 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $38.75
    Qty in Cart: 0
    Price:
    $38.75
    Subtotal:
  • Transmission Input Shaft Assembly Replaces E6HZ7017C, FULS1659, 1000CLAS1659, 3088S1659, A3297Y1351, 1091660

    Transmission Input Shaft Assembly Replaces E6HZ7017C, FULS1659, 1000CLAS1659, 3088S1659, A3297Y1351, 1091660

    AFTERMARKET

    $65.99
    Input Shaft Assembly For Fuller RT Series TransmissionsThe Transmission Input Shaft Assembly offers superior quality and reliability for Fuller RT series transmissions, replacing E6HZ7017C, FULS1659,...
    29-07050025
    SKU:
    29-07050025
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $65.99
    Qty in Cart: 0
    Price:
    $65.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    King Pin Kit W/ No Ream Spiral Bushings Replaces KH931L, R202011

    King Pin Kit W/ No Ream Spiral Bushings Replaces KH931L, R202011

    AUTOMANN USA

    Now: $325.49
    Was: $464.99
    No Ream Spiral Bushing King Pin KitRestore your truck's steering precision with the King Pin Kit W/ No-Ream Spiral Bushings, built for durability, accuracy, and heavy-duty operation. Designed to...
    29-050900045
    SKU:
    29-050900045
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Position:
    Kit Full
    Diameter Options:
    2 Inch
    Length Options:
    11 Inch
    Now: $325.49
    Was: $464.99
    Qty in Cart: 0
    Price:
    Now: $325.49
    Was: $464.99
    Subtotal:
  • Air Spring Rolling Lobe With Plastic Base Replaces W013589865, 67043002, 21217038, 23563385, 75266, 910BS-17P1192

    Air Spring Rolling Lobe With Plastic Base Replaces W013589865, 67043002, 21217038, 23563385, 75266, 910BS-17P1192

    AUTOMANN USA

    $197.99
    Replacement Air Spring Rolling LobeEnhance your truck's suspension reliability with the Air Spring Rolling Lobe with Plastic Base, designed for demanding heavy-duty applications. This air spring...
    29-051000026
    SKU:
    29-051000026
    Material Options:
    Plastic/Poly
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Diameter Options:
    9 Inch
    $197.99
    Qty in Cart: 0
    Price:
    $197.99
    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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