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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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  • FREE SHIPPING OVER $249
    6-1 AWG 3 Way Top Post Terminal

    6-1 AWG 3 Way Top Post Terminal

    UNITED PACIFIC

    $18.99
    3 Way Top Post Terminal 6-1 AWG* High Quality Battery Terminal* 3 Way Top Post* 6 To 1 AWG* 1 Positive/1Negative* Sold As Pack (2)* Warranty On Battery Terminals Against Defects In Workmanship &...
    09-16030531
    SKU:
    09-16030531
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $18.99
    Qty in Cart: 0
    Price:
    $18.99
    Subtotal:
  • FREE SHIPPING OVER $249
    7443 Incandescent Bulb T 6.5 Wedge 2 Pack

    7443 Incandescent Bulb T 6.5 Wedge 2 Pack

    UNITED PACIFIC

    $9.99
    2 Pack 7443 Incandescent Bulb T 6.5 Wedge* High Quality Incandescent Bulb* Number 7443 Bulb* T-6.5 Wedge* W3X16Q 12V 21/5W- W21/5W* Sold As Pack (2)* Warranty On Incandescent Bulbs Against Defects In...
    09-16000224
    SKU:
    09-16000224
    Product Type:
    Lighting
    Make:
    Universal Items
    $9.99
    Qty in Cart: 0
    Price:
    $9.99
    Subtotal:
  • Stainless Steel 80 Inch Super Single Axle Fenders W/ Flange & 26 Inch Drop

    Stainless Steel 80 Inch Super Single Axle Fenders W/ Flange & 26 Inch Drop

    TRUX ACCESSORIES

    $645.99
    80 Inch Stainless Steel Super Single Axle Fenders W/ Flange & 26 Inch Drop* High Quality Super Single Axle Fender* Made Of 16 Gauge Stainless Steel* Designed To Super Single Axles* With Flange*...
    09-110301017
    SKU:
    09-110301017
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    $645.99
    Qty in Cart: 0
    Price:
    $645.99
    Subtotal:
  • Smooth Stainless Steel Single Axle Fender Mounting Kit W/ 4 Green Triangle Mounts

    Smooth Stainless Steel Single Axle Fender Mounting Kit W/ 4 Green Triangle Mounts

    TRUX ACCESSORIES

    $584.99
    Single Axle Fender Mounting Kit Smooth Stainless Steel W/ 4 Green Triangle Mounts* High Quality Single Axle Fender Mounting Kit* Made Of 14 Gauge Stainless Steel* Smooth Finish* Designed For Mounting...
    09-11100267
    SKU:
    09-11100267
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    $584.99
    Qty in Cart: 0
    Price:
    $584.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Purple 360 Degree Light Burst Watermelon LED Light Mounting Kit W/ Clear Lens

    Purple 360 Degree Light Burst Watermelon LED Light Mounting Kit W/ Clear Lens

    UNITED PACIFIC

    $42.99
    Purple 360 Degree Light Burst Watermelon LED Light Mounting Kit W/ Stainless Steel Plate & Chrome Bezel* High Quality Light Mounting Kit* Watermelon Style* 360 Degree Light Burst Effect* Fully...
    09-160103230
    SKU:
    09-160103230
    Finish Options:
    Polished
    Style Options:
    Watermelon
    Color:
    Purple
    Degree Options:
    360
    Material Options:
    Glass
    Product Type:
    Lighting
    Location:
    Made In USA
    Type Options:
    Flush Mount
    Make:
    Universal Items
    $42.99
    Qty in Cart: 0
    Price:
    $42.99
    Subtotal:
  • Polished Aluminum 80 Inch Single Axle Fender W/ Rolled Edge & 26 Inch Drop

    Polished Aluminum 80 Inch Single Axle Fender W/ Rolled Edge & 26 Inch Drop

    TRUX ACCESSORIES

    $713.99
    80 Inch Polished Aluminum Single Axle Fender W/ Rolled Edge & 26 Inch Drop* High Quality Single Axle Fender* Made Of Aluminum* Polished Finish* Designed To Fit 43.5 Inch OD Tires* Rolled Edge Design*...
    09-11010111
    SKU:
    09-11010111
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    $713.99
    Qty in Cart: 0
    Price:
    $713.99
    Subtotal:
  • Stainless Steel Half Fender Mounting Kit W/ Hardware

    Stainless Steel Half Fender Mounting Kit W/ Hardware

    TRUX ACCESSORIES

    $143.99
    Half Fender Mounting Kit Stainless Steel W/ Hardware* High Quality Half Fender Mounting Kit* Made Of 14 Gauge Stainless Steel* Smooth Finish* Designed For Mounting Half Tandem Fenders (Fenders Not...
    09-11100263
    SKU:
    09-11100263
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    $143.99
    Qty in Cart: 0
    Price:
    $143.99
    Subtotal:
  • FREE SHIPPING OVER $249
    3157 Incandescent Bulb S 8 DF Wedge 2 Pack

    3157 Incandescent Bulb S 8 DF Wedge 2 Pack

    UNITED PACIFIC

    $7.99
    2 Pack 3157 Incandescent Bulb S 8 DF Wedge* High Quality Incandescent Bulb* Number 3157 Bulb* S-8 D.F. Wedge* (W2.5x16q)12.8/ 14V 2.10/ .59A 32/3CP(P27/7W)* Sold As Pack (2)* Warranty On Incandescent...
    09-16000223
    SKU:
    09-16000223
    Product Type:
    Lighting
    Make:
    Universal Items
    $7.99
    Qty in Cart: 0
    Price:
    $7.99
    Subtotal:
  • Galvanized Steel 60 Inch 4 Ribbed Half Fenders W/ Beaded Edge

    Galvanized Steel 60 Inch 4 Ribbed Half Fenders W/ Beaded Edge

    TRUX ACCESSORIES

    $276.99
    60 Inch Galvanized Steel 4 Ribbed Half Fenders W/ Beaded Edge* High Quality Half Fender* Made Of 16 Gauge Galvanized Steel* Designed To Fit 43.5 Inch OD Tires* Thin Beaded Edge Style* 4 Ribbed...
    09-110602000
    SKU:
    09-110602000
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    $276.99
    Qty in Cart: 0
    Price:
    $276.99
    Subtotal:
  • Stainless Steel Full Fender Mounting Kit W/ 2 Angled Fender Brackets & Painted Black

    Stainless Steel Full Fender Mounting Kit W/ 2 Angled Fender Brackets & Painted Black

    TRUX ACCESSORIES

    $345.99
    Full Fender Mounting Kit Stainless Steel W/ 2 Angled Fender Brackets & Painted Black* High Quality Full Fender Mounting Kit* Made Of 14 Gauge Stainless Steel* Designed To Mount Polycarbonate Full...
    09-11100264
    SKU:
    09-11100264
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    $345.99
    Qty in Cart: 0
    Price:
    $345.99
    Subtotal:
  • Stainless Steel Half Tandem Fender Mounting Kit W/ 2 Angled Fender Brackets & Painted Black

    Stainless Steel Half Tandem Fender Mounting Kit W/ 2 Angled Fender Brackets & Painted Black

    TRUX ACCESSORIES

    $196.99
    Half Tandem Fender Mounting Kit Stainless Steel W/ 2 Angled Fender Brackets & Painted Black* High Quality Half Tandem Fender Mounting Kit* Made Of 14 Gauge Stainless Steel* Designed For Mounting...
    09-11100266
    SKU:
    09-11100266
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    $196.99
    Qty in Cart: 0
    Price:
    $196.99
    Subtotal:
  • LC 60 Inch Chrome West Coast Exhaust Top Stack W/ 7-5 Extended OD

    LC 60 Inch Chrome West Coast Exhaust Top Stack W/ 7-5 Extended OD

    LINCOLN CHROME

    $523.99
    60 Inch Chrome West Coast Exhaust Top Stack W/ 7-5 Extended OD By Lincoln Chrome* High Quality Exhaust Top Stack* Made Of Chrome-Plated Steel* West Coast Curved Top Style* Dimensions:  - 60 Inch...
    09-08011462
    SKU:
    09-08011462
    Diameter Options:
    7 Inch
    Material Options:
    Steel
    Style Options:
    West Coast Turn
    Location:
    Made In USA
    Height Options:
    60 Inch
    Finish Options:
    Chrome-Plated
    Product Type:
    Exhaust
    Make:
    Universal Items
    $523.99
    Qty in Cart: 0
    Price:
    $523.99
    Subtotal:
  • Black Steel Full Fender Mounting Kit W/ Hardware

    Black Steel Full Fender Mounting Kit W/ Hardware

    TRUX ACCESSORIES

    $419.99
    Full Fender Mounting Kit Black Steel W/ Hardware* High Quality Full Fender Mounting Kit* Made Of 14 Gauge Stainless Steel* Designed To Mount Polycarbonate Full Tandem Fenders (Fenders Not Included)*...
    09-11100256
    SKU:
    09-11100256
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    $419.99
    Qty in Cart: 0
    Price:
    $419.99
    Subtotal:
  • Stainless Steel Super Single Axle Fender Mounting Kit W/ Hardware

    Stainless Steel Super Single Axle Fender Mounting Kit W/ Hardware

    TRUX ACCESSORIES

    $595.99
    Super Single Axle Fender Mounting Kit Stainless Steel W/ Hardware* High Quality Super Single Axle Fender Mounting Kit* Made Of 14 Gauge Stainless Steel* Designed For Mounting Super Single Axle...
    09-11100261
    SKU:
    09-11100261
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    $595.99
    Qty in Cart: 0
    Price:
    $595.99
    Subtotal:
  • Galvanized Steel 80 Inch Single Axle Fender W/ Thin Beaded Edge

    Galvanized Steel 80 Inch Single Axle Fender W/ Thin Beaded Edge

    TRUX ACCESSORIES

    $348.99
    80 Inch Single Axle Fender Galvanized Steel W/ Thin Beaded Edge* High Quality Single Axle Fender* Made Of Galvanized Steel* Thin Beaded Edge Design* Fully Ribbed* 80 Inch Overall Length* Sold As...
    09-110601000
    SKU:
    09-110601000
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    $348.99
    Qty in Cart: 0
    Price:
    $348.99
    Subtotal:
  • Hogebuilt Stainless Steel 68 Inch Super Single Half Tandem Fender W/ 3 Inch

    Hogebuilt Stainless Steel 68 Inch Super Single Half Tandem Fender W/ 3 Inch

    HOGEBUILT FENDERS

    $1,139.99
    68 Inch Super Single Half Tandem Fender Stainless Steel W/ 3 Inch Flange By Hogebuilt* High Quality Super Single Half Tandem Fender* Made Of 430 Stainless Steel* Mirror Shine Finish* Includes:  - (1)...
    09-11030369
    SKU:
    09-11030369
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    $1,139.99
    Qty in Cart: 0
    Price:
    $1,139.99
    Subtotal:
  • Hogebuilt Stainless Steel 72 Inch Super Single Half Tandem Fender W/ 3 Inch

    Hogebuilt Stainless Steel 72 Inch Super Single Half Tandem Fender W/ 3 Inch

    HOGEBUILT FENDERS

    $1,167.99
    72 Inch Super Single Half Tandem Fender Stainless Steel W/ 3 Inch Flange By Hogebuilt* High Quality Super Single Half Tandem Fender* Made Of 430 Stainless Steel* Mirror Shine Finish* Includes:  - (1)...
    09-11030370
    SKU:
    09-11030370
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    $1,167.99
    Qty in Cart: 0
    Price:
    $1,167.99
    Subtotal:
  • Stainless Steel 66 Inch 4 Ribbed Single Axle Fender W/ Beaded Edge & 21 Inch Drop

    Stainless Steel 66 Inch 4 Ribbed Single Axle Fender W/ Beaded Edge & 21 Inch Drop

    TRUX ACCESSORIES

    $375.99
    66 Inch Stainless Steel 4 Ribbed Single Axle Fender W/ Beaded Edge & 21 Inch Drop* High Quality Half Fender* Made Of 20 Gauge Galvanized Steel* Designed To Fit 43.5 Inch OD Tires* Thin Beaded Edge...
    09-11030249
    SKU:
    09-11030249
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    $375.99
    Qty in Cart: 0
    Price:
    $375.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Zinc Plated Steel Deck Plate Mounting Kit

    Zinc Plated Steel Deck Plate Mounting Kit

    AUTOMANN USA

    $12.99
    Deck Plate Mounting Kit Zinc Plated Steel* High Quality Deck Plate Mounting Kit* Made Of Zinc Plated Steel* Mounting Hardware For Deck Plate * Deck Plate Not Included* Sold Individually* Warranty On...
    09-05030113
    SKU:
    09-05030113
    Product Type:
    Frame & Chassis
    Position:
    Kit Full
    Material Options:
    Steel
    Finish Options:
    Zinc-Plated
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $12.99
    Qty in Cart: 0
    Price:
    $12.99
    Subtotal:
  • Stainless Steel 80 Inch 4 Ribbed Single Axle Fender W/ Beaded Edge & 26 Inch Drop

    Stainless Steel 80 Inch 4 Ribbed Single Axle Fender W/ Beaded Edge & 26 Inch Drop

    TRUX ACCESSORIES

    $246.99
    80 Inch Stainless Steel 4 Ribbed Single Axle Fender W/ Beaded Edge & 26 Inch Drop* High Quality Single Axle Fender* Made Of 20 Gauge Stainless Steel* Designed To Fit 43 Inch OD Ties* Thin Beaded Edge...
    09-110301019
    SKU:
    09-110301019
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    $246.99
    Qty in Cart: 0
    Price:
    $246.99
    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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