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Kenworth T300-T450 Parts

Shop heavy-duty mechanical replacement parts designed to fit the Kenworth T300 (1995 - 2007) and Kenworth T450 (1989 - 1997). Order precision-fit, quick-to-ship aftermarket truck parts to minimize downtime. Customize the look of your medium-duty vocational truck with our selection of exterior and interior chrome accessories, or outfit the frame rail with toolboxes, fuel tanks, and more.
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  • Hogebuilt Stainless Steel Half Tandem Fender W/ 3 Inch Flange & Length Options For Kenworth

    Hogebuilt Stainless Steel Half Tandem Fender W/ 3 Inch Flange & Length Options For Kenworth

    HOGEBUILT FENDERS

    $1,759.99 - $1,793.99
    Choose Option(s) to see description.Fitment* Fits Kenworth C500 1972 thru Current* Fits Kenworth Cabover 1961 thru 2002* Fits Kenworth K100 Cabover 1961 thru 1967* Fits Kenworth K100C 1968 thru 1983*...
    PPR_301234
    SKU:
    PPR_301234
    Product Type:
    Rear Fenders
    $1,759.99 - $1,793.99
    Qty in Cart: 0
    Price:
    $1,759.99 - $1,793.99
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  • Roadworks Stainless Steel Channel W/ Light Hole & Length Options

    Roadworks Stainless Steel Channel W/ Light Hole & Length Options

    ROADWORKS

    $7.11 - $138.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksRoadworks 3.5 Inch Stainless Steel Channel W/ Round 2 Inch Light Hole3.5 Inch Stainless Steel Channel...
    PPR_301347
    SKU:
    PPR_301347
    Length Options:
    30 Inch
    Length Options:
    60 Inch
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Height Options:
    3 1/2 Inch
    Length Options:
    36 Inch
    Length Options:
    3 1/2 Inch
    Length Options:
    86 Inch
    Length Options:
    6 3/4 Inch
    Length Options:
    18 Inch
    Light Options:
    Without Lights
    Length Options:
    42 Inch
    Length Options:
    88 Inch
    Product Type:
    Lighting
    Make:
    Universal Items
    $7.11 - $138.99
    Qty in Cart: 0
    Price:
    $7.11 - $138.99
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  • Roadworks Stainless Steel Channel W/ Contoured Bar, Length & Oval Light Hole Options

    Roadworks Stainless Steel Channel W/ Contoured Bar, Length & Oval Light Hole Options

    ROADWORKS

    $15.72 - $72.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksRoadworks 8.25 Inch Stainless Steel Channel W/ Contoured Bar & 1 Oval Light Hole8.25 Inch Stainless...
    PPR_301356
    SKU:
    PPR_301356
    Length Options:
    24 1/2 Inch
    Location:
    Made In USA
    Length Options:
    48 Inch
    Material Options:
    Stainless Steel
    Length Options:
    16 1/2 Inch
    Height Options:
    4 Inch
    Light Options:
    Without Lights
    Length Options:
    8 1/4 Inch
    Product Type:
    Lighting
    Make:
    Universal Items
    $15.72 - $72.99
    Qty in Cart: 0
    Price:
    $15.72 - $72.99
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  • Roadworks Stainless Steel Channel W/ Length & Round Light Hole Options

    Roadworks Stainless Steel Channel W/ Length & Round Light Hole Options

    ROADWORKS

    $20.07 - $36.54
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksRoadworks 6.5 Inch Stainless Steel Channel W/ 1 Round 4 inch Light Hole6.5 Inch Stainless Steel Channel...
    PPR_301352
    SKU:
    PPR_301352
    Height Options:
    6 1/2 Inch
    Location:
    Made In USA
    Length Options:
    13 Inch
    Material Options:
    Stainless Steel
    Product Type:
    Lighting
    Light Options:
    Without Lights
    Length Options:
    6 1/2 Inch
    Make:
    Universal Items
    $20.07 - $36.54
    Qty in Cart: 0
    Price:
    $20.07 - $36.54
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  • Roadwork Stainless Steel Channel W/ Supernova Light Hole & Length Options

    Roadwork Stainless Steel Channel W/ Supernova Light Hole & Length Options

    ROADWORKS

    $13.84 - $135.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksRoadworks 6.75 Inch Stainless Steel Channel W/ Supernova Light Hole6.75 Inch Stainless Steel Channel W/...
    PPR_301348
    SKU:
    PPR_301348
    Length Options:
    18 Inch
    Length Options:
    60 Inch
    Length Options:
    30 Inch
    Material Options:
    Stainless Steel
    Length Options:
    94 Inch
    Product Type:
    Lighting
    Style Options:
    Supernova
    Height Options:
    3 1/2 Inch
    Length Options:
    36 Inch
    Length Options:
    6 3/4 Inch
    Light Options:
    Without Lights
    Location:
    Made In USA
    Make:
    Universal Items
    $13.84 - $135.99
    Qty in Cart: 0
    Price:
    $13.84 - $135.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Multi Color Function Rigid Strip W/ 7 Selectable Colors & Length Options

    Multi Color Function Rigid Strip W/ 7 Selectable Colors & Length Options

    MAXXIMA

    $61.99 - $117.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksMulti Color Function Rigid Strip 12 Inch W/ 7 Selectable Colors & 33 LEDs12 Inch Multi Color Function...
    PPR_301232
    SKU:
    PPR_301232
    Height Options:
    114 Inch
    Product Type:
    Lighting
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $61.99 - $117.99
    Qty in Cart: 0
    Price:
    $61.99 - $117.99
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  • Stainless Steel 30 Inch Mud Flap Hanger Spring Loaded W/ Optional Bolt Spacing

    Stainless Steel 30 Inch Mud Flap Hanger Spring Loaded W/ Optional Bolt Spacing

    TRUX ACCESSORIES

    $127.99 - $163.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks & TrailersStainless Steel Mud Flap Hangers 30 X 5.5 Inch W/ 1.125 Inch Bolt SpacingMud Flap Hangers 30...
    PPR_301248
    SKU:
    PPR_301248
    Finish Options:
    Mirror
    Material Options:
    Stainless Steel
    Product Type:
    Mud Flaps
    Width Options:
    30 Inch
    Make:
    Universal Items
    $127.99 - $163.99
    Qty in Cart: 0
    Price:
    $127.99 - $163.99
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  • Merritt Aluminum Cab Rack W/ Jail Bar Window & 2 Side Enclosures 86 X 68 X 9 Inch

    Merritt Aluminum Cab Rack W/ Jail Bar Window & 2 Side Enclosures 86 X 68 X 9 Inch

    MERRITT

    $5,806.99
    Diamond Plated Aluminum Cab Rack W/ 2 Chain Hangers* High Quality Cab Rack* Made Of Aluminum* Includes:  - Diamond Plated Body  - Jail Bar Window  - (2) Side Enclosures  - (2) Chain Hangers*...
    319381M0086
    SKU:
    319381M0086
    Product Type:
    Exterior
    Location:
    Made In USA
    Height Options:
    68 Inch
    Finish Options:
    Diamond Plate
    Width Options:
    86 Inch
    Material Options:
    Aluminum
    Make:
    Universal Items
    $5,806.99
    Qty in Cart: 0
    Price:
    $5,806.99
    Subtotal:
  • Merritt Aluminum Cab Rack W/ Radius Corners & Jail Bar Window 70 X 68 Inch

    Merritt Aluminum Cab Rack W/ Radius Corners & Jail Bar Window 70 X 68 Inch

    MERRITT

    $3,318.99
    Diamond Plated Aluminum Cab Rack W/ 2 Split Trays/Lids & 4 Inch Tall Foot Assembly* High Quality Cab Rack* Made Of Aluminum* Includes:  - Diamond Plated Body  - Radius Corners  - 4 Inch Tall Foot...
    317367C0446
    SKU:
    317367C0446
    Product Type:
    Exterior
    Material Options:
    Aluminum
    Location:
    Made In USA
    Height Options:
    68 Inch
    Finish Options:
    Diamond Plate
    Width Options:
    70 Inch
    Make:
    Universal Items
    $3,318.99
    Qty in Cart: 0
    Price:
    $3,318.99
    Subtotal:
  • Merritt Aluminum Tool Box Kit W/ Black Textured Double Doors 60 X 18 X 18 Inch

    Merritt Aluminum Tool Box Kit W/ Black Textured Double Doors 60 X 18 X 18 Inch

    MERRITT

    $2,095.99
    60 X 18 X 18 Inch Aluminum Tool Box Kit W/ Black Textured Double Doors By Merritt* High Quality Tool Box Kit* Made Of Aluminum* Includes:  - Aluminum Smooth Body  - Black Textured Double Doors*...
    291TBK
    SKU:
    291TBK
    Product Type:
    Toolboxes
    Length Options:
    60 Inch
    Width Options:
    18 Inch
    Height Options:
    18 Inch
    Position:
    Kit Full
    Material Options:
    Aluminum
    Location:
    Made In USA
    Make:
    Universal Items
    $2,095.99
    Qty in Cart: 0
    Price:
    $2,095.99
    Subtotal:
  • Roadworks Stainless Steel Hubcover 22.5 Inch W/ Disk Dana-Spicer Hubcover, Chrome Plastic Nut Covers & Mounting Hardware

    Roadworks Stainless Steel Hubcover 22.5 Inch W/ Disk Dana-Spicer Hubcover, Chrome Plastic Nut Covers & Mounting Hardware

    ROADWORKS

    $200.99
    Stainless Steel Hubcover 22.5 Inch W/ Disk Dana-Spicer Hubcover, Chrome Plastic Nut Covers & Mounting Hardware By Roadworks* High Quality Hubcover* Made Of 304 Stainless Steel* Polished Finish* For...
    29-2003030
    SKU:
    29-2003030
    Product Type:
    Wheels
    Material Options:
    Stainless Steel
    Location:
    Made In USA
    Finish Options:
    Polished
    Make:
    Universal Items
    $200.99
    Qty in Cart: 0
    Price:
    $200.99
    Subtotal:
  • Roadworks Stainless Steel Hubcover 22.5 Inch W/ Disk Dana-Spicer Hubcover & Mounting Hardware For Disk Hubcovers

    Roadworks Stainless Steel Hubcover 22.5 Inch W/ Disk Dana-Spicer Hubcover & Mounting Hardware For Disk Hubcovers

    ROADWORKS

    $184.99
    Stainless Steel Hubcover 22.5 Inch W/ Disk Dana-Spicer Hubcover & Mounting Hardware By Roadworks Fits Disk Hubcovers* High Quality Hubcover* Made Of 304 Stainless Steel* Polished Finish* For Disk...
    29-2003029
    SKU:
    29-2003029
    Product Type:
    Wheels
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Finish Options:
    Polished
    Make:
    Universal Items
    $184.99
    Qty in Cart: 0
    Price:
    $184.99
    Subtotal:
  • Roadworks Stainless Steel Hubcover 24.5 Inch

    Roadworks Stainless Steel Hubcover 24.5 Inch

    ROADWORKS

    $182.99
    * High Quality Hubcover* Made Of 304 Stainless Steel* Polished Finish* For Disk Hubcovers* Includes:  - Disk Dana-Spicer Hub Cover  - Mounting Hardware * 24.5 Inch Diameter Disk* Sold Individually*...
    29-2003031
    SKU:
    29-2003031
    Product Type:
    Wheels
    Finish Options:
    Polished
    Material Options:
    Stainless Steel
    Location:
    Made In USA
    Make:
    Universal Items
    $182.99
    Qty in Cart: 0
    Price:
    $182.99
    Subtotal:
  • Roadworks Stainless Steel Hubcover W/ Flame Dana-Spicer Hubcover & Mounting Hardware For Flame Drive Axle Hubcovers

    Roadworks Stainless Steel Hubcover W/ Flame Dana-Spicer Hubcover & Mounting Hardware For Flame Drive Axle Hubcovers

    ROADWORKS

    $114.99
    Stainless Steel Hubcover W/ Flame Dana-Spicer Hubcover & Mounting Hardware By Roadworks Fits Flame Drive Axle Hubcovers* High Quality Hubcover* Made Of 304 Stainless Steel* Polished Finish* For Flame...
    29-2003027
    SKU:
    29-2003027
    Product Type:
    Wheels
    Finish Options:
    Polished
    Material Options:
    Stainless Steel
    Location:
    Made In USA
    Make:
    Universal Items
    $114.99
    Qty in Cart: 0
    Price:
    $114.99
    Subtotal:
  • Outer Spindle Nut 4 Inch A/F & 3.25 Inch 12 Thread

    Outer Spindle Nut 4 Inch A/F & 3.25 Inch 12 Thread

    AFTERMARKET

    $43.85
    4 Inch A/F Outer Spindle Nut 3.25 Inch 12 Thread* High Quality Outer Spindle Nut* Dimensions:  - 4.00 Inch A/F  - 3.25 Inch - 12 Thread  - 0.38 Inch Thick* Sold Individually* Warranty On Outer...
    29-203301
    SKU:
    29-203301
    Product Type:
    Wheels
    Make:
    Universal Items
    $43.85
    Qty in Cart: 0
    Price:
    $43.85
    Subtotal:
  • 32 X 79 Inch Mattress W/ 7 Inch Base Height & 1 Inch C-Gell Height

    32 X 79 Inch Mattress W/ 7 Inch Base Height & 1 Inch C-Gell Height

    AFTERMARKET

    $302.99
    Mattress 32 X 79 Inch W/ 7 Inch Base Height & 1 Inch C-Gell Height* High Quality Mattress* Includes:  - 7 Inch Base Height  - 1 Inch C-Gell Height* Dimensions:  - 32 Inch Length Of The Truck  - 79...
    29-1545007
    SKU:
    29-1545007
    Product Type:
    Interior
    Height Options:
    8 Inch
    Width Options:
    79 Inch
    Length Options:
    32 Inch
    Make:
    Universal Items
    $302.99
    Qty in Cart: 0
    Price:
    $302.99
    Subtotal:
  • Roadworks Stainless Steel Hubcover W/ Super-Hub Dana-Spicer Hubcover & Mounting Hardware For Super-Hub Drive Axle Hubcovers

    Roadworks Stainless Steel Hubcover W/ Super-Hub Dana-Spicer Hubcover & Mounting Hardware For Super-Hub Drive Axle Hubcovers

    ROADWORKS

    $165.99
    Stainless Steel Hubcover W/ Super-Hub Dana-Spicer Hubcover & Mounting Hardware By Roadworks Fits Super-Hub Drive Axle Hubcovers* High Quality Hubcover* Made Of 304 Stainless Steel* Polished Finish*...
    29-2003028
    SKU:
    29-2003028
    Product Type:
    Wheels
    Location:
    Made In USA
    Finish Options:
    Polished
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $165.99
    Qty in Cart: 0
    Price:
    $165.99
    Subtotal:
  • Fifth Wheel Mounting Rail 55 X 3 X 4 Inch

    Fifth Wheel Mounting Rail 55 X 3 X 4 Inch

    OPP - ORIGINAL PARTS PROGRAM

    $326.99
    55 X 3 X 4 Inch Fifth Wheel Mounting Rail* High Quality Fifth Wheel Mounting Rail* Includes:  - (2) 5th Wheel Mounting Angle Brackets* Dimensions:  - 55 Inch Length  - 3 Inch Width  - 4 Inch Height ...
    29-051100033
    SKU:
    29-051100033
    Product Type:
    Frame & Chassis
    Length Options:
    55 Inch
    Height Options:
    4 Inch
    Width Options:
    3 Inch
    Location:
    Made In USA
    Make:
    Universal Items
    $326.99
    Qty in Cart: 0
    Price:
    $326.99
    Subtotal:
  • Ridewell Bushing Replacement Kit W/ Hardware

    Ridewell Bushing Replacement Kit W/ Hardware

    RIDEWELL

    $276.99
    Bushing Replacement Kit W/ Hardware By Ridewell* High Quality Bushing Replacement Kit* Used For Light Trac Lift Axle Air Suspension (Not Included)* Includes:  - (2) Kits (1 Per Axle)  - Needed...
    29-05100584
    SKU:
    29-05100584
    Product Type:
    Frame & Chassis
    Position:
    Kit Full
    Location:
    Made In USA
    Make:
    Universal Items
    $276.99
    Qty in Cart: 0
    Price:
    $276.99
    Subtotal:
  • Bug Screen Hardware W/ 12 Pull DOT Fasteners For BS-4900 Abstract Bug Screen

    Bug Screen Hardware W/ 12 Pull DOT Fasteners For BS-4900 Abstract Bug Screen

    ROBERT JAMES ENTERPRISES

    $34.32
    Bug Screen Hardware W/ 12 Pull DOT Fasteners By Robert James Enterprises* High Quality Bug Screen Hardware* Hardware Kit For BS-4900 Abstract Bug Screen* (12) Pull DOT Fasteners* Sold Individually*...
    29-120904
    SKU:
    29-120904
    Product Type:
    Hood Parts & Acc.
    Position:
    Kit Full
    Make:
    Universal Items
    $34.32
    Qty in Cart: 0
    Price:
    $34.32
    Subtotal:
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Aftermarket Parts for Kenworth T300 & T450 Trucks

We stock hundreds of critical repair and replacement parts for the T300 and classic T450 model. Our goal is to get you the hardware that’ll maintain your vocational Kenworth truck for years to come. Whether you need engine-cooling components, HVAC parts, air brake replacements, or suspension hardware parts, they’re all available for purchase and ready to ship out of our 30,000-square-foot warehouse.

Kenworth T300 Parts & Accessories

Exterior Upgrades & Chrome: Blind-mount front bumpers, grilles, LED cab lights, mirrors, visors, and hood trim accents. Interior Cab Customizations: Floor trim accessories, gauge panel trim, air brake dash knobs, and cab roof trim upgrades. Mechanical & System Replacements: Larger diesel fuel tanks, suspension components, engine parts, and brake components.

Kenworth T450 Parts & Accessories

Bumpers & Exterior Dressings: Custom front bumpers, OEM and Texas-style bumper options, stainless steel or chrome finishes, grilles, and cab lighting. Dash Accessories & Trim: Interior panel upgrades, custom dash knobs, floor trim kits, and driver-focused cabin accents. Drivetrain & Replacement Components: High-capacity fuel storage upgrades, system replacement parts, and reliable mechanical hardware.

Why Upgrade Your Kenworth Medium-Duty Rig?

Boost Visual Appeal: Chrome cab lights, bold grille inserts, and custom bumpers give your truck a clean, head-turning look on the road or at the dock. Improve Cab Comfort: Add floor trim kits, updated door panels, and dash accessories to create a more comfortable, driver-friendly workspace. Increase Efficiency: Larger fuel storage capacity and ergonomic fuel tank accessories give you more range between fuel stops—perfect for regional hauls or long shifts. Cost-Effective Replacements: Get high-quality parts at a better price than many OEM options, all with reliable fit and function. Custom Options: Choose from multiple finishes, materials, and configurations to match your style and how you use your truck.

Frequently Asked Questions About Kenworth T300-T450 Parts

What year models are compatible with your T300-T450 bumpers and parts?

Our Kenworth T300-T450 parts typically fit models from 1994 through 2008, when these trucks were in production. However, compatibility can vary by specific part. The T300 was produced from 1994-2007, while the T330 and T440 ran through 2008. Always check the product description for exact year ranges, or contact our team with your OEM number for guaranteed fitment verification.

Are your bumpers made from chrome-plated steel or stainless steel, and which is better for my truck?

We offer both chrome-plated steel and polished stainless steel options. Chrome-plated bumpers provide a mirror-like finish at a lower cost but require regular maintenance to prevent rust and pitting. Stainless steel bumpers cost more upfront but resist corrosion better and maintain their appearance with minimal care. For trucks in harsh weather conditions or coastal areas, we recommend stainless steel. For show trucks or mild climates, chrome-plated options work well with proper maintenance.

Do I need special tools or professional installation for T300-T450 bumpers?

Most bumper installations require basic hand tools including socket sets, wrenches, and possibly a drill for certain accessories. The bumper itself typically weighs 40-80 pounds, so having a helper is strongly recommended. Installation usually takes 2-4 hours depending on whether you're adding accessories like fog lights or tow hooks. While many customers successfully install bumpers themselves, some prefer professional installation, especially when adding electrical components or dealing with rusted mounting brackets.

Will aftermarket bumpers affect my truck's approach angle or ground clearance?

Standard replacement bumpers maintain factory dimensions and won't affect approach angles or clearance. However, heavy-duty bumpers with integrated tow hooks or extended designs may protrude 2-4 inches further than stock, potentially reducing approach angle. Texas-style bumpers and some custom options sit lower, which can reduce ground clearance by 1-2 inches. Always check product specifications for exact measurements to ensure the bumper meets your operational needs.

What's the difference between OEM-style and Texas bumpers for T300-T450 trucks?

OEM-style bumpers replicate the factory design with standard mounting points and original dimensions, making them direct replacements. Texas bumpers (also called Texas square bumpers) feature a distinctive squared-off design that extends further from the truck and sits lower, offering enhanced protection and a custom appearance. Texas bumpers typically include more mounting points for accessories but may require slight modifications to air lines or other components during installation.


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