null

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.
  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Brake Liner 20K- 4.00 Inch Shoe Width

    Brake Liner 20K- 4.00 Inch Shoe Width

    AFTERMARKET

    $93.99
    Replacement Heavy Duty Brake Lining 20K- Grade AMF5008* High Quality Brake Lining* 20K Lb Fleet Premium Heavy Duty Rating* Designed For 20,000 Lbs GAWR Steer Axles* 15.00 Inch Drum Diameter* 4.00...
    09-05170294
    SKU:
    09-05170294
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $93.99
    Qty in Cart: 0
    Price:
    $93.99
    Subtotal:
  • Pinion Seal Replaces 9773

    Pinion Seal Replaces 9773

    AUTOMANN USA

    $12.71
    4.568 Inch OD X 0.718 Inch Width Pinion Seal With 2.625 Inch Shaft Diameter* High Quality Pinion Seal* 2.625 Inch Shaft Diameter* 4.568 Inch Outer Diameter* 0.718 Inch Width* Sold Individually*...
    09-05210020
    SKU:
    09-05210020
    Diameter Options:
    4 1/2 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $12.71
    Qty in Cart: 0
    Price:
    $12.71
    Subtotal:
  • Air Spring Rolling Lobe W/ Plastic Base

    Air Spring Rolling Lobe W/ Plastic Base

    AFTERMARKET

    $189.99
    Air Spring Rolling Lobe* High Quality Air Spring* Automann Phoenix Brand* Rolling Lobe* Load At 80 PSI - 5500 Lbs* Load At 100 PSI - 7000 Lbs* Natural Frequency 70 CPM (Cycles Per Minute)*...
    09-05200014
    SKU:
    09-05200014
    Product Type:
    Frame & Chassis
    Rating:
    100 PSI
    Style Options:
    Rolling Lobe
    Material Options:
    Rubber
    Make:
    Universal Items
    $189.99
    Qty in Cart: 0
    Price:
    $189.99
    Subtotal:
  • CR Scotseal Replaces A1205J738. A1205W1557. A1205X2806. 370047A

    CR Scotseal Replaces A1205J738. A1205W1557. A1205X2806. 370047A

    AFTERMARKET

    $75.99
    Drive Axle CR Scotseal* High Quality Scotseal* CR Genuine Seal Type* For Drive Axle* 3.434 Inch Shaft Diameter* 4.762 Inch Outer Diameter* 0.859 Inch Width* Sold Individually* Warranty On Scotseals...
    09-05210010
    SKU:
    09-05210010
    Product Type:
    Frame & Chassis
    Shape Options:
    Round
    Diameter Options:
    4 3/4 Inch
    Make:
    Universal Items
    $75.99
    Qty in Cart: 0
    Price:
    $75.99
    Subtotal:
  • Double Convoluted Air Spring Replaces Cross Ref Number 7403, 2B12-307, 64488, S1159, AS0007

    Double Convoluted Air Spring Replaces Cross Ref Number 7403, 2B12-307, 64488, S1159, AS0007

    AFTERMARKET

    $185.99
    Double Convoluted Air Spring* High Quality Air Spring* Automann Phoenix Brand* Double Convoluted* Load At 80 PSI - 4720 Lbs* Load At 100 PSI - 5900 Lbs* Natural Frequency 102 CPM (Cycles Per Minute)*...
    09-05200010
    SKU:
    09-05200010
    Material Options:
    Rubber
    Product Type:
    Frame & Chassis
    Style Options:
    Double Convolute
    Make:
    Universal Items
    $185.99
    Qty in Cart: 0
    Price:
    $185.99
    Subtotal:
  • Brake Lining 20K- 5.50 Inch Shoe Width

    Brake Lining 20K- 5.50 Inch Shoe Width

    AFTERMARKET

    $117.99
    Replacement Heavy Duty Brake Lining 20K- 12.25 Inch Drum Diameter* High Quality Brake Lining* 20K Lb Fleet Heavy Duty Rating* Designed For 20,000 Lbs GAWR Steer Axles* 12.25 Inch Drum Diameter* 5.50...
    09-05170264
    SKU:
    09-05170264
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $117.99
    Qty in Cart: 0
    Price:
    $117.99
    Subtotal:
  • Brake Lining 20K- 5.00 Inch Shoe Width

    Brake Lining 20K- 5.00 Inch Shoe Width

    AFTERMARKET

    $85.99
    Replacement Heavy Duty Brake Lining 20K- Grade AMF5008* High Quality Brake Lining* 20K Lb Fleet Heavy Duty Rating* Designed For 20,000 Lbs GAWR Steer Axles* 15.00 Inch Drum Diameter* 5.00 Inch Shoe...
    09-05170286
    SKU:
    09-05170286
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $85.99
    Qty in Cart: 0
    Price:
    $85.99
    Subtotal:
  • Brake Lining 23K- 5.00 Inch Shoe Width

    Brake Lining 23K- 5.00 Inch Shoe Width

    AFTERMARKET

    $117.99
    Replacement Heavy Duty Brake Lining 23K- Grade AMF3085* High Quality Brake Lining* 23K Lb Fleet Premium Heavy Duty Rating* Designed For 23,000 Lbs GAWR Steer Axles* 15.00 Inch Drum Diameter* 5.00...
    09-05170288
    SKU:
    09-05170288
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $117.99
    Qty in Cart: 0
    Price:
    $117.99
    Subtotal:
  • M40 ABS Tractor - Modulator Valve

    M40 ABS Tractor - Modulator Valve

    AFTERMARKET

    $659.99
    ABS Modulator Valve* High Quality Modualtor Valve* M40 ABS Tractor - Modulator Valve* Recommended To Replace Modulators On Both Sides Of The Axle At The Same Time* Sold Individually* Warranty On...
    09-05170271
    SKU:
    09-05170271
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $659.99
    Qty in Cart: 0
    Price:
    $659.99
    Subtotal:
  • Combination Brake Liner 23K- 6.00 Inch Shoe Width For Meritor Drive Axle

    Combination Brake Liner 23K- 6.00 Inch Shoe Width For Meritor Drive Axle

    AFTERMARKET

    $138.99
    Brake Lining 23K For GAWR Steer Axles* High Quality Brake Lining* 23K Lbs Combination Lining* Designed For 23,000 Lbs GAWR Steer Axles* 16.50 Inch Drum Diameter* 6.00 Inch Shoe Width* Sold As Set*...
    09-05170221
    SKU:
    09-05170221
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $138.99
    Qty in Cart: 0
    Price:
    $138.99
    Subtotal:
  • Double Oversize Brake Lining- 26,000 Lbs

    Double Oversize Brake Lining- 26,000 Lbs

    AFTERMARKET

    $271.99
    Double Oversize Brake Lining Transit-For 26,000 Lbs GAWR Steer Axles* High Quality Brake Lining Transit* Double Oversize* Designed For 26,000 Lbs GAWR Steer Axles* 18.5 Inch Slr (Static Loaded...
    09-05170237
    SKU:
    09-05170237
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $271.99
    Qty in Cart: 0
    Price:
    $271.99
    Subtotal:
  • Brake Liner 20K- 6 inch Shoe Width

    Brake Liner 20K- 6 inch Shoe Width

    AFTERMARKET

    $110.99
    Replacement Heavy Duty Brake Lining 20K- 15.00 Inch Drum Diameter* High Quality Brake Lining* 20K Lb Fleet Premium Heavy Duty Rating* Designed For 20,000 Lbs GAWR Steer Axles* 15.00 Inch Drum...
    09-05170246
    SKU:
    09-05170246
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $110.99
    Qty in Cart: 0
    Price:
    $110.99
    Subtotal:
  • Combination Lining Brake Liner 23K- 6.00 Inch Shoe Width For Meritor Drive Axle

    Combination Lining Brake Liner 23K- 6.00 Inch Shoe Width For Meritor Drive Axle

    AFTERMARKET

    $109.99
    Brake Lining 23K For GAWR Steer Axles- Grade AMF2085* High Quality Brake Lining* 23K Lbs Combination Lining* Designed For 23,000 Lbs GAWR Steer Axles* 16.50 Inch Drum Diameter* 6.00 Inch Shoe Width*...
    09-05170222
    SKU:
    09-05170222
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $109.99
    Qty in Cart: 0
    Price:
    $109.99
    Subtotal:
  • Brake Lining 12K- 8.625 Inch Shoe Width For Meritor Drive/Steer Axle

    Brake Lining 12K- 8.625 Inch Shoe Width For Meritor Drive/Steer Axle

    AFTERMARKET

    $142.99
    Replacement Heavy Duty Brake Lining 12K- Grade AMF12100* High Quality Brake Lining* 12K Lb Fleet Premium Heavy Duty Rating* Designed For 12,000 Lbs GAWR Steer Axles* 16.50 Inch Drum Diameter* 8.625...
    09-05170203
    SKU:
    09-05170203
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $142.99
    Qty in Cart: 0
    Price:
    $142.99
    Subtotal:
  • Brake Lining 26,000 Lbs Replaces 4228F

    Brake Lining 26,000 Lbs Replaces 4228F

    AFTERMARKET

    $180.99
    Brake Lining 26,000 Lbs For GAWR Steer Axles* High Quality Brake Lining Transit* Designed For 26,000 Lbs GAWR Steer Axles* 18.5 Inch Slr (Static Loaded Radius)* 195 Al (Application Factor)* Sold As...
    09-05170208
    SKU:
    09-05170208
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $180.99
    Qty in Cart: 0
    Price:
    $180.99
    Subtotal:
  • Brake Lining 23K- 8.625 Inch Shoe Width

    Brake Lining 23K- 8.625 Inch Shoe Width

    AFTERMARKET

    $164.99
    Replacement Heavy Duty Brake Lining 23K- Grade AMF23100* High Quality Brake Lining* 23K Lb Fleet Premium Heavy Duty Rating* Designed For 23,000 Lbs GAWR Steer Axles* 16.50 Inch Drum Diameter* 8.625...
    09-05170123
    SKU:
    09-05170123
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $164.99
    Qty in Cart: 0
    Price:
    $164.99
    Subtotal:
  • Chrome Plastic Sitting Nude Lady- Facing Left

    Chrome Plastic Sitting Nude Lady- Facing Left

    GRAND GENERAL

    $12.66
    4 X 6 Inch Chrome Plastic Sitting Nude Lady* High Quality Cut Outs* Sitting Nude Lady* Facing Left* 4 Inch Height* 6 Inch Width* Rear Mount Stud* Sold Individually* Warranty On Cut Outs Against...
    09-05070295
    SKU:
    09-05070295
    Finish Options:
    Chrome-Plated
    Width Options:
    6 Inch
    Product Type:
    Mud Flaps
    Height Options:
    4 Inch
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Type Options:
    Rear Mount
    $12.66
    Qty in Cart: 0
    Price:
    $12.66
    Subtotal:
  • Single Convolute Air Spring Replaces 354-7462, 7462, ABSP1B1507462, FS7462, W01-358-7462, W013587462

    Single Convolute Air Spring Replaces 354-7462, 7462, ABSP1B1507462, FS7462, W01-358-7462, W013587462

    AFTERMARKET

    $113.99
    Single Convolute Air SpringMaintain reliable suspension performance with the Econoride Single Convolute Air Spring. Constructed with a single convoluted design, durable rubber lift bags, and a...
    09-05100145
    SKU:
    09-05100145
    Style Options:
    Single Convolute
    Product Type:
    Frame & Chassis
    Material Options:
    Rubber
    Make:
    Universal Items
    $113.99
    Qty in Cart: 0
    Price:
    $113.99
    Subtotal:
  • Chrome Train Horn Diaphragm

    Chrome Train Horn Diaphragm

    TRUX ACCESSORIES

    $10.03
    6.5 OD, 5 ID X 0.1 Inch Train Horn Diaphragm* High Quality Train Horn Diaphragm Replacement* Fits Trux 3 Bell And 4 Bell Model Train Horns Only* Remove Back Of Train Horn Cap And Attach Using...
    09-05130015
    SKU:
    09-05130015
    Style Options:
    4 Bell
    Material Options:
    Steel
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Diameter Options:
    6 1/2 Inch
    Finish Options:
    Chrome-Plated
    Ready To Ship:
    Yes
    $10.03
    Qty in Cart: 0
    Price:
    $10.03
    Subtotal:
  • 19 X 30 Inch Black Mud Flap

    19 X 30 Inch Black Mud Flap

    TRAMEC SLOAN

    $56.99
    Aerodynamic Straight Design Black Mud Flap* High Quality Mud Flap* Aerodynamic Straight Design* US EPA Smartway Program Compatible* Unique Pattern Channels Airflow* No Anti-Sail Brackets Needed*...
    09-05070409
    SKU:
    09-05070409
    Product Type:
    Mud Flaps
    Color:
    Black
    Width Options:
    19 Inch
    Height Options:
    30 Inch
    Make:
    Universal Items
    $56.99
    Qty in Cart: 0
    Price:
    $56.99
    Subtotal:
  • Total: items /

Adding your products to cart

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.


Introducing the Official 4 State Trucks Mobile App – Gear Up On the Go!