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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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  • BESTfit 4 X 12 Inch Galvanized Steel Flex Hose

    BESTfit 4 X 12 Inch Galvanized Steel Flex Hose

    BESTFIT TRUCK PARTS

    $19.29
    4 X 12 Inch Galvanized Flex Hose By BESTfitBuilt for durability and dependable operation, the BESTfit 4 x 12 Inch Galvanized Steel Flex Hose provides corrosion-resistant, flexible performance in a...
    GR-G15-412
    SKU:
    GR-G15-412
    Material Options:
    Steel
    Diameter Options:
    4 Inch
    Product Type:
    Exhaust
    Length Options:
    12 Inch
    Finish Options:
    Galvanized
    Style Options:
    Flex
    Make:
    Universal Items
    $19.29
    Qty in Cart: 0
    Price:
    $19.29
    Subtotal:
  • BESTfit 4 ID X 6 Inch Aluminized Steel Coupler

    BESTfit 4 ID X 6 Inch Aluminized Steel Coupler

    BESTFIT TRUCK PARTS

    $26.99
    4 ID X 6 Inch Aluminized Coupler By BESTfitEnsure long-lasting and secure pipe connections with the BESTfit 4 ID x 6 Inch Aluminized Steel Coupler. Constructed from high-quality 16-gauge aluminized...
    GR-CP-46A
    SKU:
    GR-CP-46A
    Product Type:
    Exhaust
    Make:
    Universal Items
    $26.99
    Qty in Cart: 0
    Price:
    $26.99
    Subtotal:
  • BESTfit 24 Inch 304 Stainless Steel Grab Handle

    BESTfit 24 Inch 304 Stainless Steel Grab Handle

    BESTFIT TRUCK PARTS

    $119.99
    24 Inch Stainless Steel Grab Handle By BESTfit1The BESTfit 24 Inch 304 Stainless Steel Grab Handle is a durable, corrosion-resistant solution for safe and convenient truck access. Made from...
    GR-GH-24S
    SKU:
    GR-GH-24S
    Length Options:
    24 Inch
    Product Type:
    Exhaust
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $119.99
    Qty in Cart: 0
    Price:
    $119.99
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  • BESTfit 3.5 ID X 3.71 OD X 6 Inch CAC Hose

    BESTfit 3.5 ID X 3.71 OD X 6 Inch CAC Hose

    BESTFIT TRUCK PARTS

    $58.99
    3.5 ID X 3.71 OD X 6 Inch Cold CAC Hose By BESTfitAchieve reliable airflow and superior engine protection with the BESTfit 3.5 ID x 3.71 OD x 6 Inch CAC Hose. Engineered for EGR cold side systems,...
    GR-CCAC-20078
    SKU:
    GR-CCAC-20078
    Product Type:
    Engine Parts
    Material Options:
    Silicone
    Length Options:
    6 Inch
    Make:
    Universal Items
    $58.99
    Qty in Cart: 0
    Price:
    $58.99
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  • CSM Brushed Stainless Steel Trash Can

    CSM Brushed Stainless Steel Trash Can

    CHROME SHOP MAFIA

    $99.00
    Stainless Steel Trash Can By Chrome Shop MafiaOrganize your cab, garage, or workspace with the CSM Brushed Stainless Steel Trash Can by Chrome Shop Mafia. Made of 16-gauge brushed stainless steel...
    09-2200045
    SKU:
    09-2200045
    Location:
    Made In USA
    Product Type:
    Apparel
    Make:
    Universal Items
    $99.00
    Qty in Cart: 0
    Price:
    $99.00
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  • 8 Inch Black Battery Jumper Cable Replaces 84-9401

    8 Inch Black Battery Jumper Cable Replaces 84-9401

    AFTERMARKET

    $22.71
    8 Inch 1 Gauge Black Battery Jumper CableQuickly and safely jump-start or connect batteries with the 8 Inch Black Battery Jumper Cable. This premium battery-to-battery cable includes a 1-gauge wire...
    09-160300035
    SKU:
    09-160300035
    Color:
    Black
    Product Type:
    Engine Parts
    Length Options:
    8 Inch
    Make:
    Universal Items
    $22.71
    Qty in Cart: 0
    Price:
    $22.71
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  • 17 Inch Red Battery Jumper Cable Replaces 84-9307, 9-217

    17 Inch Red Battery Jumper Cable Replaces 84-9307, 9-217

    AFTERMARKET

    $29.67
    17 Inch 2 Gauge Red Battery Jumper Cable W/ 3/8 Inch Anti- Rotational LugsOptimize battery performance with the 17 Inch Red Battery Jumper Cable. Made for Group 31 batteries, it includes a 2/0 gauge...
    09-160300046
    SKU:
    09-160300046
    Length Options:
    17 Inch
    Color:
    Red
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $29.67
    Qty in Cart: 0
    Price:
    $29.67
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  • 17 Inch Black Battery Jumper Cable Replaces 84-9306, 9-218

    17 Inch Black Battery Jumper Cable Replaces 84-9306, 9-218

    AFTERMARKET

    $29.67
    17 Inch 2 Gauge Black Battery Jumper Cable W/ 3/8 Inch Anti- Rotational LugsKeep your batteries connected and your truck powered with the 17 Inch Black Battery Jumper Cable. Designed for Group 31...
    09-160300048
    SKU:
    09-160300048
    Product Type:
    Engine Parts
    Color:
    Black
    Length Options:
    17 Inch
    Make:
    Universal Items
    $29.67
    Qty in Cart: 0
    Price:
    $29.67
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  • BESTfit 7-5 Inch I.D. Exhaust Reducer

    BESTfit 7-5 Inch I.D. Exhaust Reducer

    BESTFIT TRUCK PARTS

    $62.99
    7-5 Inch Aluminized Exhaust Reducer By BESTfitMaintain reliable exhaust performance with the BESTfit 7-5 Inch I.D. Exhaust Reducer. Made from durable aluminized steel, it offers an 8-inch height and...
    09-080100601
    SKU:
    09-080100601
    Material Options:
    Aluminum
    Diameter Options:
    7 To 5 Inch
    Product Type:
    Exhaust
    Make:
    Universal Items
    $62.99
    Qty in Cart: 0
    Price:
    $62.99
    Subtotal:
  • Black Aluminum Flat Top Brake Knob W/ CSM Logo Engraved

    Black Aluminum Flat Top Brake Knob W/ CSM Logo Engraved

    TWISTED SHIFTERZ

    $84.99
    CSM Logo Black Aluminum Flat Top Brake KnobCustomize your truck cab with the Black Aluminum Flat Top Brake Knob featuring the engraved CSM logo. This high-quality aluminum knob is built for strength,...
    09-15130960
    SKU:
    09-15130960
    Product Type:
    Interior
    Make:
    Universal Items
    $84.99
    Qty in Cart: 0
    Price:
    $84.99
    Subtotal:
  • BESTfit 6-5 ID X 96 Inch Chrome Curve Top Stack

    BESTfit 6-5 ID X 96 Inch Chrome Curve Top Stack

    BESTFIT TRUCK PARTS

    $695.00
    6-5 ID X 96 Inch Curve Top Stack By BESTfitAchieve smooth and efficient exhaust flow with the BESTfit 6-5 ID x 96 Inch Chrome Curve Top Stack. Made from chrome-plated steel for heavy-duty durability,...
    09-086596172
    SKU:
    09-086596172
    Product Type:
    Exhaust
    Finish Options:
    Chrome-Plated
    Material Options:
    Steel
    Diameter Options:
    6 To 5 Inch
    Height Options:
    96 Inch
    Position:
    Lower
    Style Options:
    Curve Turn
    Make:
    Universal Items
    $695.00
    Qty in Cart: 0
    Price:
    $695.00
    Subtotal:
  • FREE SHIPPING
    18 X 13 X 23 Inch Aluminum In- Frame Battery Box W/ Latch

    18 X 13 X 23 Inch Aluminum In- Frame Battery Box W/ Latch

    AFTERMARKET

    $524.99
    Aluminum In- Frame Battery Box W/ Diamond Plate Lid & Latch- 18 X 13 X 23 InchEnsure reliable battery storage and protection with the 18 x 13 x 23 Inch Aluminum In-Frame Battery Box with Latch...
    09-0501002
    SKU:
    09-0501002
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $524.99
    Qty in Cart: 0
    Price:
    $524.99
    Subtotal:
  • FREE SHIPPING OVER $249
    BESTfit Driver Side Multi- Bend Elbow Replaces K180-14764CP For Kenworth T600, T800 & W900L/B

    BESTfit Driver Side Multi- Bend Elbow Replaces K180-14764CP For Kenworth T600, T800 & W900L/B

    BESTFIT TRUCK PARTS

    $157.99
    Kenworth Multi- Bend Elbow- Driver Side By BESTfitReplace worn or damaged exhaust pipes on your Kenworth T600, T800, or W900L/B with the BESTfit Driver Side Multi-Bend Elbow. Featuring two bends and...
    02-08147644
    SKU:
    02-08147644
    Style Options:
    Elbow Multi-Bend
    Product Type:
    Exhaust
    Material Options:
    Stainless Steel
    Make:
    Kenworth
    $157.99
    Qty in Cart: 0
    Price:
    $157.99
    Subtotal:
  • CSM Tank Chair Or Couch Cushion

    CSM Tank Chair Or Couch Cushion

    CHROME SHOP MAFIA

    $142.99
    Choose Option(s) to see description.CSM Tank Chair Or Couch Bottom CushionBottom Cushion For CSM Tank Chair Or CouchAdd comfort and style back to your seating setup with this CSM Tank Chair or Couch...
    PPR_300371
    SKU:
    PPR_300371
    Product Type:
    Apparel
    Make:
    Universal Items
    Color:
    Black
    Location:
    Made In USA
    $142.99
    Qty in Cart: 0
    Price:
    $142.99
    Subtotal:
  • Powder Coated Steel Power Drill Organizer Bracket

    Powder Coated Steel Power Drill Organizer Bracket

    JONES MFG

    $25.90 - $46.90
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksPowder Coated Steel 2 Bay Power Drill Organizer Bracket2 Bay Power Drill Organizer BracketMaximize...
    PPR_300370
    SKU:
    PPR_300370
    Length Options:
    14 Inch
    Product Type:
    Cargo Control
    Finish Options:
    Black Powder Coat
    Length Options:
    6 1/2 Inch
    Width Options:
    5 Inch
    Height Options:
    1 1/2 Inch
    Material Options:
    Steel
    Make:
    Universal Items
    $25.90 - $46.90
    Qty in Cart: 0
    Price:
    $25.90 - $46.90
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  • Stop, Turn, Tail Box LED Light

    Stop, Turn, Tail Box LED Light

    AUTOMANN USA

    $81.99 - $83.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksStop, Turn, Tail Box LED Light- Driver Side Replaces 53640Driver Side Stop, Turn, Tail Box LED Light- 3...
    PPR_300366
    SKU:
    PPR_300366
    Color:
    Red/White
    Position:
    Driver Side
    Height Options:
    3 Inch
    Width Options:
    5 3/4 Inch
    Length Options:
    6 3/4 Inch
    Position:
    Passenger Side
    Product Type:
    Lighting
    Material Options:
    Plastic/Poly
    Style Options:
    Black Housing
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $81.99 - $83.99
    Qty in Cart: 0
    Price:
    $81.99 - $83.99
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  • 36 Inch Blue Poly Coolant Hose

    36 Inch Blue Poly Coolant Hose

    AUTOMANN USA

    $71.99 - $76.99
    Replace worn or cracked hoses with this high-quality 36-inch Blue Poly Coolant Hose, available in 2.50-inch and 3-inch diameters. They are made from resilient poly material for superior durability...
    PPR_300363
    SKU:
    PPR_300363
    Diameter Options:
    3 Inch
    Style Options:
    Sleeve
    Material Options:
    Silicone
    Length Options:
    36 Inch
    Color:
    Blue
    Diameter Options:
    2 1/2 Inch
    Product Type:
    Engine Parts
    Make:
    Universal Items
    Material Options:
    Polyester
    $71.99 - $76.99
    Qty in Cart: 0
    Price:
    $71.99 - $76.99
    Subtotal:
  • Nylon Hose Connector- 5 Pack

    Nylon Hose Connector- 5 Pack

    AFTERMARKET

    $10.51 - $12.34
    Choose Option(s) to see description.1/2 Inch Nylon Hose Connector- 5 Pack Replaces 65623, 286031/2 Inch Hose Connector- 5 PackEnsure your fluid systems operate efficiently with the 1/2 Inch Nylon...
    PPR_300369
    SKU:
    PPR_300369
    Material Options:
    Nylon
    Length Options:
    1/2 Inch
    Product Type:
    Cargo Control
    Length Options:
    5/8 Inch
    Make:
    Universal Items
    $10.51 - $12.34
    Qty in Cart: 0
    Price:
    $10.51 - $12.34
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  • Drive Axle Flange Gasket W/ Size Options

    Drive Axle Flange Gasket W/ Size Options

    AUTOMANN USA

    $1.98 - $2.02
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksDrive Axle Flange Gasket Replaces 6823, R002431, 7284, 476075, 7167435.625 ID X 8.50 OD 8 Hole Drive...
    PPR_300362
    SKU:
    PPR_300362
    Diameter Options:
    8 1/2 Inch
    Product Type:
    Wheels
    Make:
    Universal Items
    $1.98 - $2.02
    Qty in Cart: 0
    Price:
    $1.98 - $2.02
    Subtotal:
  • Multi V - Serpentine Belt

    Multi V - Serpentine Belt

    AFTERMARKET

    $31.95 - $115.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksMulti V - 6 Rib Serpentine Belt 51.50 Inch Replaces 4060515, 3579001C151.50 Inch Multi V- Serpentine...
    PPR_300368
    SKU:
    PPR_300368
    Length Options:
    89 Inch
    Product Type:
    Engine Parts
    Length Options:
    51 1/2 Inch
    Length Options:
    52 Inch
    Make:
    Universal Items
    $31.95 - $115.99
    Qty in Cart: 0
    Price:
    $31.95 - $115.99
    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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