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
  • Stainless Steel Wave Bottom Mud Flap Weight 24 Inch Bolt On

    Stainless Steel Wave Bottom Mud Flap Weight 24 Inch Bolt On

    TRUX ACCESSORIES

    $65.99
    Bolt On Wave Bottom Mud Flap Weight 24 Inch Stainless SteelAdd a bold custom detail to your truck with the24 Inch Stainless Steel Wave Bottom Mud Flap Weight. Made from quality stainless steel, this...
    09-05070194
    SKU:
    09-05070194
    Material Options:
    Stainless Steel
    Product Type:
    Mud Flaps
    Width Options:
    24 Inch
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Type Options:
    Bolt Mount
    Height Options:
    6 Inch
    Length Options:
    1/2 Inch
    $65.99
    Qty in Cart: 0
    Price:
    $65.99
    Subtotal:
  • 2 Inch Stainless Steel Mud Flap Hanger End Plug

    2 Inch Stainless Steel Mud Flap Hanger End Plug

    UNITED PACIFIC

    $5.19
    304 Stainless Steel Mud Flap Hanger End Plug* High Quality Mud Flap Hanger End Plug* Covers The End On Spring Loaded Mud Flap Hangers* Polished 304 Stainless Steel* 2-1/8 Inch Width* 3-1/8 Inch...
    09-05070183
    SKU:
    09-05070183
    Product Type:
    Mud Flaps
    Material Options:
    Stainless Steel
    Finish Options:
    Polished
    Make:
    Universal Items
    Length Options:
    3 1/8 Inch
    Width Options:
    2 1/8 Inch
    $5.19
    Qty in Cart: 0
    Price:
    $5.19
    Subtotal:
  • Chrome Plated Steel Sitting Nude Lady- Left Facing

    Chrome Plated Steel Sitting Nude Lady- Left Facing

    GRAND GENERAL

    $22.89
    11 X 17 Inch Chrome Plated Steel Sitting Nude Lady* High Quality Cut Outs* Sitting Nude Lady* Facing Left* Chrome Plated Steel* 11 Inch Height* 17 Inch Width* Rear Mount Stud* Sold Individually*...
    09-05070255
    SKU:
    09-05070255
    Product Type:
    Mud Flaps
    Type Options:
    Rear Mount
    Finish Options:
    Chrome-Plated
    Height Options:
    11 Inch
    Width Options:
    17 Inch
    Material Options:
    Steel
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $22.89
    Qty in Cart: 0
    Price:
    $22.89
    Subtotal:
  • Stainless Steel Anti Sail Flap Plates 14 X 1 x 18 Inch

    Stainless Steel Anti Sail Flap Plates 14 X 1 x 18 Inch

    TRUX ACCESSORIES

    $113.99
    14 X 18 X 1 Inch Anti Sail Flap Plates Stainless SteelAdd durability and support to your truck's mud flap setup with theStainless Steel Anti Sail Flap Plates 14 x 1 x 18 Inch. Built from quality...
    09-05070190
    SKU:
    09-05070190
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Length Options:
    1 Inch
    Width Options:
    14 Inch
    Height Options:
    18 Inch
    Ready To Ship:
    Yes
    Product Type:
    Mud Flaps
    $113.99
    Qty in Cart: 0
    Price:
    $113.99
    Subtotal:
  • 24 X 24 Black Rubber Mud Flap

    24 X 24 Black Rubber Mud Flap

    AUTOMANN USA

    $21.96
    Black Rubber Mud Flap Replaces 2424HD. 82424* High Quality Mud Flap* Thick V Cord Rubber For Extra Strength* Black* Dimensions:  - 24 Inch Length  - 24 Inch Width  - 1/2 Inch Thick* Sold...
    09-05070095
    SKU:
    09-05070095
    Height Options:
    24 Inch
    Width Options:
    24 Inch
    Length Options:
    1/2 Inch
    Material Options:
    Rubber
    Color:
    Black
    Product Type:
    Mud Flaps
    Make:
    Universal Items
    $21.96
    Qty in Cart: 0
    Price:
    $21.96
    Subtotal:
  • Stainless Steel Nut Cover W/ Skirt

    Stainless Steel Nut Cover W/ Skirt

    REALWHEELS

    $3.31
    304 Stainless Steel Nut Cover- 1.25 Inch Height* High Quality Lug Nut Cover* With Skirt* 304 Stainless Steel* 1.25 Inch Height* 1 Inch Skirt* Made In USA* Sold Individually* Warranty On Lug Nut...
    09-05060093
    SKU:
    09-05060093
    Product Type:
    Wheels
    Height Options:
    1 1/4 Inch
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Finish Options:
    Polished
    Make:
    Universal Items
    $3.31
    Qty in Cart: 0
    Price:
    $3.31
    Subtotal:
  • 24 X 24 Inch White Poly Mud Flap

    24 X 24 Inch White Poly Mud Flap

    AUTOMANN USA

    $24.28
    White Poly Mud Flap Replaces 11473Protect your truck and surrounding vehicles with this 24 X 24 Inch White Poly Mud Flap. Made from heavy-duty polyethylene, it has a ribbed anti-spray surface to...
    09-05070100
    SKU:
    09-05070100
    Material Options:
    Plastic/Poly
    Color:
    White
    Product Type:
    Mud Flaps
    Height Options:
    24 Inch
    Width Options:
    24 Inch
    Length Options:
    1/2 Inch
    Make:
    Universal Items
    $24.28
    Qty in Cart: 0
    Price:
    $24.28
    Subtotal:
  • 30 Inch Stainless Steel Mud Flap Hanger W/ Reflective Tape

    30 Inch Stainless Steel Mud Flap Hanger W/ Reflective Tape

    AFTERMARKET

    $267.99
    30 Inch Mud Flap Hanger W/ Reflective TapeProtect your truck and improve visibility on the road with this 30 Inch Stainless Steel Mud Flap Hanger W/ Reflective Tape. Built from 201 stainless steel,...
    09-05070093
    SKU:
    09-05070093
    Material Options:
    Stainless Steel
    Product Type:
    Mud Flaps
    Width Options:
    30 Inch
    Make:
    Universal Items
    $267.99
    Qty in Cart: 0
    Price:
    $267.99
    Subtotal:
  • Aluminum Replacement Step For Pro-Tech Aluminum Tool Box

    Aluminum Replacement Step For Pro-Tech Aluminum Tool Box

    PRO-TECH INDUSTRIES

    $151.99
    Aluminum Replacement StepRestore convenience to your Pro-Tech Aluminum Tool Box with the Aluminum Replacement Step, designed to provide heavy-duty support and reliable usage. Made from high-quality...
    09-050500048
    SKU:
    09-050500048
    Material Options:
    Aluminum
    Product Type:
    Toolboxes
    Make:
    Universal Items
    $151.99
    Qty in Cart: 0
    Price:
    $151.99
    Subtotal:
  • Chrome Plastic Flat Top Nut Covers- Pack of 10

    Chrome Plastic Flat Top Nut Covers- Pack of 10

    4 STATE TRUCKS

    $9.54
    Push On Flat Top Nut Covers* High Quality Nut Cover* (10) Flat Top Nut Covers* For Hex Nuts And Bolts* Chrome Plastic* 1 Inch Height* 5/8 Inch Nut Size* Push-On* Sold As Pack* Warranty On Nut Covers...
    09-05060072
    SKU:
    09-05060072
    Diameter Options:
    5/8 Inch
    Material Options:
    Plastic/Poly
    Product Type:
    Wheels
    Finish Options:
    Chrome-Plated
    Style Options:
    Flat Top
    Length Options:
    1 Inch
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $9.54
    Qty in Cart: 0
    Price:
    $9.54
    Subtotal:
  • Stainless Steel Deck Plate Cover- Treaded

    Stainless Steel Deck Plate Cover- Treaded

    ROADWORKS

    $259.99
    Stainless Steel Deck Plate Cover Without Cutouts* High Quality Deck Plate* Treaded* No Cutouts* Use With Double Sided Airline Boxes* Mounting Brackets Included* Stainless Steel* 12 Inch* Sold...
    09-05030074
    SKU:
    09-05030074
    Length Options:
    12 Inch
    Material Options:
    Stainless Steel
    Type Options:
    Standard Mount
    Product Type:
    Frame & Chassis
    Size Options:
    18 Gauge
    Make:
    Universal Items
    $259.99
    Qty in Cart: 0
    Price:
    $259.99
    Subtotal:
  • Low Pressure Switch Replaces 228750. 288522. 288522N. R955228750N. 034042

    Low Pressure Switch Replaces 228750. 288522. 288522N. R955228750N. 034042

    AUTOMANN USA

    $11.65
    LP3 Type Low Pressure Switch* High Quality Low Pressure Switch* LP3 Type* 2 Terminals* At Air Pressure Above 60 PSI, Contacts Are Open. Closes At 60 PSI Dropping Pressure* Sold Individually* Warranty...
    09-05040096
    SKU:
    09-05040096
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $11.65
    Qty in Cart: 0
    Price:
    $11.65
    Subtotal:
  • 24 X 5 Inch Step Mat

    24 X 5 Inch Step Mat

    AUTOMANN USA

    $28.09
    Step Mat- 24 X 5 InchKeep your truck steps safe and slip-free with this 24 X 5 Inch Step Mat. Measuring 24 inches long and 5 inches wide, this high-quality mat provides durable, anti-slip protection...
    09-05050001
    SKU:
    09-05050001
    Width Options:
    5 Inch
    Length Options:
    24 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $28.09
    Qty in Cart: 0
    Price:
    $28.09
    Subtotal:
  • Stainless Steel Air Line Box With Holes For 2 Air Lines, 7-Way & 6 Round 2 Inch Red/ Clear Flat Lights

    Stainless Steel Air Line Box With Holes For 2 Air Lines, 7-Way & 6 Round 2 Inch Red/ Clear Flat Lights

    ROADWORKS

    $682.99
    Air Line Box With Holes For 2 Air Lines, 7-Way & 6 Round 2 Inch Red/ Clear Flat Lights* High Quality Air Line Box* Single Connector* Includes:  - (1) 7-Way Hole  - (2) Air Line Holes  - (6) Round 2...
    09-050400029
    SKU:
    09-050400029
    Size Options:
    14 Gauge
    Material Options:
    Stainless Steel
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Color:
    Red/Clear
    Light Options:
    With Lights
    Location:
    Made In USA
    $682.99
    Qty in Cart: 0
    Price:
    $682.99
    Subtotal:
  • HCVC Mini Console Replaces Hcvc-195-Hp-3D. Hcvc195Hp3D

    HCVC Mini Console Replaces Hcvc-195-Hp-3D. Hcvc195Hp3D

    AFTERMARKET

    $1,035.99
    HCVC Mini Console* High Quality Hcvc Mini Console* Positive Detent Lock In Neutral Position* Metered Hoist Control* Push To Connect Fittings For 1/4" DOT Tubing* Sold Individually* Warranty On Hcvc...
    09-02500208
    SKU:
    09-02500208
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $1,035.99
    Qty in Cart: 0
    Price:
    $1,035.99
    Subtotal:
  • 48 X 34 X 1.25 Inch Diamond Plate Aluminum Deck Plate Cover

    48 X 34 X 1.25 Inch Diamond Plate Aluminum Deck Plate Cover

    PRO-TECH INDUSTRIES

    $488.99
    Blind Mount Diamond Plate Aluminum Deck Plate Cover* High Quality Deck Cover* Mounting Kit Included* 0.105 Diamond Plate Aluminum* 1-1/4 Inch Height* 34 Inch Width* 48 Inch Length* Blind Mount* Sold...
    09-05030016
    SKU:
    09-05030016
    Product Type:
    Frame & Chassis
    Material Options:
    Aluminum
    Finish Options:
    Diamond Plate
    Position:
    Kit Full
    Height Options:
    1 1/4 Inch
    Type Options:
    Blind Mount
    Length Options:
    48 Inch
    Width Options:
    34 Inch
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $488.99
    Qty in Cart: 0
    Price:
    $488.99
    Subtotal:
  • Hydraulic Pump Replaces P5151

    Hydraulic Pump Replaces P5151

    AFTERMARKET

    $965.99
    Hydraulic Pump- 3000 PSI* High Quality Hydraulic Pump* Sold Individually* Warranty On Hydraulic Pumps Against Defects In Workmanship & Material From Date Of Purchase* Cross Ref Number P5151** This...
    09-02500125
    SKU:
    09-02500125
    Make:
    Universal Items
    Product Type:
    Cargo Control
    $965.99
    Qty in Cart: 0
    Price:
    $965.99
    Subtotal:
  • Stainless Steel License Plate Frame 12 X 6.375 Inch

    Stainless Steel License Plate Frame 12 X 6.375 Inch

    GRAND GENERAL

    $23.58
    12 X 6.375 Inch License Plate Frame Stainless SteelAdd a clean, professional finishing touch to your truck with this Stainless Steel License Plate Frame. Measuring 12 inches long by 6-3/8 inches...
    09-01070016
    SKU:
    09-01070016
    Product Type:
    Bumpers
    Length Options:
    12 Inch
    Material Options:
    Stainless Steel
    Width Options:
    6 1/4 Inch
    Finish Options:
    Polished
    Make:
    Universal Items
    $23.58
    Qty in Cart: 0
    Price:
    $23.58
    Subtotal:
  • Push On Chrome Plastic Nut Cover W/ Flange

    Push On Chrome Plastic Nut Cover W/ Flange

    GRAND GENERAL

    $1.02
    0.6875 X 0.75 Inch Nut Cover With Flange* High Quality Nut Cover* With Flange* Chrome Plastic* 11/16 Inch Height* 3/4 Inch Across Flat* Push-On* Sold Individually* Warranty On Nut Covers Against...
    09-01070003
    SKU:
    09-01070003
    Height Options:
    1 Inch
    Material Options:
    Plastic/Poly
    Diameter Options:
    3/4 Inch
    Product Type:
    Wheels
    Finish Options:
    Chrome-Plated
    Style Options:
    Push On
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $1.02
    Qty in Cart: 0
    Price:
    $1.02
    Subtotal:
  • Stainless Steel Flanged Mount License Plate Holder

    Stainless Steel Flanged Mount License Plate Holder

    BORES

    $53.99
    12 X 6 X 3.5 Inch License Plate Holder* High Quality License Plate Holder* One Plate Holder* Corrosion Resistance* Slotted Mounting Holes* Mounting Hardware Included* 304 Stainless Steel* 12 Inch...
    09-0107113
    SKU:
    09-0107113
    Product Type:
    Bumpers
    Style Options:
    Flanged
    Location:
    Made In USA
    Width Options:
    12 Inch
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $53.99
    Qty in Cart: 0
    Price:
    $53.99
    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!