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
  • 4 X 4.5 Inch Stainless Steel Charge Air Cooler Tube Passenger Side

    4 X 4.5 Inch Stainless Steel Charge Air Cooler Tube Passenger Side

    B & H TUBES

    $566.99
    Passenger Side 4 X 4.5 Inch Stainless Steel Charge Air Cooler Tube Replaces 01-27235-000Restore strong, consistent airflow to your turbo system with this passenger-side 4-4.5 Inch Stainless Steel...
    09-0701012
    SKU:
    09-0701012
    Diameter Options:
    4 1/2 Inch
    Product Type:
    Engine Parts
    Material Options:
    Stainless Steel
    Position:
    Passenger Side
    Make:
    Universal Items
    $566.99
    Qty in Cart: 0
    Price:
    $566.99
    Subtotal:
  • Coolant Pump For Espar/Eberspacher Hydronic D5 Model Heater

    Coolant Pump For Espar/Eberspacher Hydronic D5 Model Heater

    AFTERMARKET

    $363.99
    Coolant Pump Replaces 25.2219.25.0000, 25 2219 25 0000, 252219250000Achieve efficient coolant circulation with this 12V Coolant Pump designed for the Espar/Eberspacher Hydronic D5 Model Heater...
    09-15030032
    SKU:
    09-15030032
    Product Type:
    Interior
    Make:
    Universal Items
    $363.99
    Qty in Cart: 0
    Price:
    $363.99
    Subtotal:
  • Standard Flat Aluminum Cab Rack W/ 2 Split Trays, Center Jail Bar Window & 50 Gallon Hydraulic Tank 70 X 68 Inch

    Standard Flat Aluminum Cab Rack W/ 2 Split Trays, Center Jail Bar Window & 50 Gallon Hydraulic Tank 70 X 68 Inch

    ICONIC

    $3,378.99
    68 X 70 Inch Diamond Plate Aluminum Cab Rack W/ Center Jail Bar Window, Split Trays, Chain Hangers & 50 GAL Hydraulic TankEquip your truck with the Diamond Plate Aluminum Cab Rack, combining storage,...
    09-021100063
    SKU:
    09-021100063
    Material Options:
    Aluminum
    Height Options:
    68 Inch
    Product Type:
    Cargo Control
    Capacity:
    50 Gallons
    Finish Options:
    Diamond Plate
    Width Options:
    70 Inch
    Make:
    Universal Items
    $3,378.99
    Qty in Cart: 0
    Price:
    $3,378.99
    Subtotal:
  • Stainless Steel Rear Center Panel W/ Rounded Corners & 5 Rnd 4 Inch Light Holes

    Stainless Steel Rear Center Panel W/ Rounded Corners & 5 Rnd 4 Inch Light Holes

    ARANDA TRUCK ACCESSORIES

    $515.99
    34 X 18 Inch Rounded Corner Rear Center Panel Stainless Steel W/ 5 Rnd 4 Inch Light HolesGive your truck a bold rear-end upgrade with the Stainless Steel Rear Center Panel featuring five 4-inch light...
    09-011100151
    SKU:
    09-011100151
    Light Options:
    Without Lights
    Product Type:
    Bumpers
    Position:
    Rear
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $515.99
    Qty in Cart: 0
    Price:
    $515.99
    Subtotal:
  • 4 Inch Chrome Plated Steel Exhaust Bracket W/ Flat U-Bolt

    4 Inch Chrome Plated Steel Exhaust Bracket W/ Flat U-Bolt

    GRAND GENERAL

    $12.45
    Chrome Exhaust Bracket 4 Inch W/ Flat U-BoltAchieve a secure and stable exhaust setup with this 4 Inch Chrome Plated Steel Exhaust Bracket with Flat U-Bolt. Manufactured from durable chrome plated...
    09-080000074
    SKU:
    09-080000074
    Diameter Options:
    4 Inch
    Product Type:
    Exhaust
    Finish Options:
    Chrome-Plated
    Material Options:
    Steel
    Make:
    Universal Items
    $12.45
    Qty in Cart: 0
    Price:
    $12.45
    Subtotal:
  • Aluminum In Frame Toolbox W/ Smooth Body & Diamond Plate Lid - 13 Inches

    Aluminum In Frame Toolbox W/ Smooth Body & Diamond Plate Lid - 13 Inches

    ICONIC

    $599.99
    18 X 23 X 13 Inch In-Frame ToolboxOptimize your truck's storage with the In-Frame Toolbox with Smooth Body Checker Lid - 13 Inches, built to mount securely inside your frame rails and save valuable...
    09-050200004
    SKU:
    09-050200004
    Material Options:
    Aluminum
    Length Options:
    18 Inch
    Finish Options:
    Smooth
    Product Type:
    Toolboxes
    Height Options:
    13 Inch
    Width Options:
    23 Inch
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $599.99
    Qty in Cart: 0
    Price:
    $599.99
    Subtotal:
  • Bulldog HD Shock Absorber 6.57 Inch Stroke Replaces 555014

    Bulldog HD Shock Absorber 6.57 Inch Stroke Replaces 555014

    BULLDOG HD SHOCKS

    $70.99
    Heavy Duty Universal Shock Absorber- 12.95 Inch Compressed LengthBoost ride quality and handling with the Bulldog HD Shock Absorber 6.57-inch stroke. Built with robotic welds and a semi-gloss black...
    09-05000004
    SKU:
    09-05000004
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $70.99
    Qty in Cart: 0
    Price:
    $70.99
    Subtotal:
  • Smooth Aluminum Big Mouth Step Box W/ Diamond Plate Lid- 16 X 29.13 X 24 Inch

    Smooth Aluminum Big Mouth Step Box W/ Diamond Plate Lid- 16 X 29.13 X 24 Inch

    ICONIC

    $729.99
    16 X 29.13 X 24 Inch Smooth Aluminum Big Mouth Step Box W/ Diamond Plate LidBoost your truck's efficiency with the Smooth Aluminum Big Mouth Step Box, built for rugged use and professional appearance...
    09-020100783
    SKU:
    09-020100783
    Finish Options:
    Smooth
    Product Type:
    Toolboxes
    Height Options:
    24 Inch
    Material Options:
    Aluminum
    Width Options:
    29 Inch
    Length Options:
    16 Inch
    Make:
    Universal Items
    $729.99
    Qty in Cart: 0
    Price:
    $729.99
    Subtotal:
  • Enclosed Style Smooth Aluminum Cab Rack W/ 3 Exterior Cabinets & Interior Shelf In Center Cabinets 78 X 68 X 18 Inch

    Enclosed Style Smooth Aluminum Cab Rack W/ 3 Exterior Cabinets & Interior Shelf In Center Cabinets 78 X 68 X 18 Inch

    ICONIC

    $3,616.99
    Smooth Aluminum Cab Rack W/ 2 Chain Hangers & Stainless Steel HingesKeep your tools and equipment organized with the Smooth Aluminum 3 Door Cab Rack featuring an interior shelf and chain hangers...
    09-021100051
    SKU:
    09-021100051
    Height Options:
    68 Inch
    Width Options:
    78 Inch
    Finish Options:
    Smooth
    Length Options:
    18 Inch
    Product Type:
    Cargo Control
    Material Options:
    Aluminum
    Make:
    Universal Items
    $3,616.99
    Qty in Cart: 0
    Price:
    $3,616.99
    Subtotal:
  • Black Steel Spring Loaded Straight Mud Flap Hanger W/ 2.5 Inch Bolt Pattern- 30 Inch

    Black Steel Spring Loaded Straight Mud Flap Hanger W/ 2.5 Inch Bolt Pattern- 30 Inch

    GRAND GENERAL

    $152.99
    30 Inch Black Spring Loaded Straight Mud Flap Hanger W/ 2.5 Inch Bolt PatternKeep your mud flaps steady and functional with the 30 Inch Black Steel Spring Loaded Straight Mud Flap Hanger. Made of...
    09-050700286
    SKU:
    09-050700286
    Color:
    Black
    Style Options:
    Spring Loaded
    Product Type:
    Mud Flaps
    Length Options:
    30 Inch
    Material Options:
    Steel
    Make:
    Universal Items
    $152.99
    Qty in Cart: 0
    Price:
    $152.99
    Subtotal:
  • Bulldog HD Shock Absorber 9.09 Inch Stroke Replaces 555014

    Bulldog HD Shock Absorber 9.09 Inch Stroke Replaces 555014

    BULLDOG HD SHOCKS

    $41.08
    Heavy Duty Universal Shock Absorber- 15.08 Inch Compressed Length Replaces 555014Restore control and stability to your vehicle with the Bulldog HD Shock Absorber, 9.09-inch stroke. Built for...
    09-05000003
    SKU:
    09-05000003
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $41.08
    Qty in Cart: 0
    Price:
    $41.08
    Subtotal:
  • Plastic Full Moon Bumper Guide Lens- Blue

    Plastic Full Moon Bumper Guide Lens- Blue

    GRAND GENERAL

    $1.02
    Blue Full Moon Bumper Guide LensGive your truck a stylish and functional enhancement with the Blue Plastic Full Moon Bumper Guide Lens. Made from sturdy plastic in a full moon style, this lens adds a...
    09-012023
    SKU:
    09-012023
    Diameter Options:
    1 Inch
    Color:
    Blue
    Style Options:
    Thread On
    Material Options:
    Plastic/Poly
    Product Type:
    Lighting
    Make:
    Universal Items
    $1.02
    Qty in Cart: 0
    Price:
    $1.02
    Subtotal:
  • 2-5/16 Inch Chrome Small Gauge Cover- Snap On For Kenworth

    2-5/16 Inch Chrome Small Gauge Cover- Snap On For Kenworth

    GRAND GENERAL

    $4.14
    2-5/16 Inch Snap On Chrome Small Gauge Cover Fits KenworthKeep your gauges looking sharp while staying protected with the 2-5/16 Inch Chrome Small Gauge Cover for Kenworth trucks. Made from...
    02-150200435
    SKU:
    02-150200435
    Material Options:
    Plastic/Poly
    Finish Options:
    Chrome-Plated
    Product Type:
    Interior
    Diameter Options:
    2 Inch
    Shape Options:
    Round
    Make:
    Kenworth
    $4.14
    Qty in Cart: 0
    Price:
    $4.14
    Subtotal:
  • Stainless Steel Warning Plaque W/ Caution, Do Not Use Cruise Control When Road Is Slippery Engraved For Kenworth

    Stainless Steel Warning Plaque W/ Caution, Do Not Use Cruise Control When Road Is Slippery Engraved For Kenworth

    GRAND GENERAL

    $8.37
    5.25 X 0.75 Inch Stainless Steel Caution, Do Not Use Cruise Control When Road Is Slippery Warning PlaqueHighlight critical safety instructions with the Stainless Steel Warning Plaque for Kenworth...
    02-150100106
    SKU:
    02-150100106
    Height Options:
    3/4 Inch
    Width Options:
    5 1/4 Inch
    Material Options:
    Stainless Steel
    Product Type:
    Interior
    Make:
    Kenworth
    $8.37
    Qty in Cart: 0
    Price:
    $8.37
    Subtotal:
  • Belmor Stainless Steel & Poly Aeroshield III Hood Shield- Smoke For Kenworth T170, T270 & T370

    Belmor Stainless Steel & Poly Aeroshield III Hood Shield- Smoke For Kenworth T170, T270 & T370

    BELMOR

    $329.99
    Stainless Steel & Smoke Poly Aeroshield III Hood Shield By Belmor Fits KenworthKeep your hood looking sharp and shielded from damage with the Belmor Stainless Steel & Poly Aeroshield III Hood Shield...
    02-12200064
    SKU:
    02-12200064
    Color:
    Smoke
    Style Options:
    Aero Style
    Material Options:
    Plastic/Poly
    Product Type:
    Hood Parts & Acc.
    Make:
    Kenworth
    $329.99
    Qty in Cart: 0
    Price:
    $329.99
    Subtotal:
  • 12 Gauge Customs 3.5 Inch Aluminum Sleeper Panel W/ 13 Rnd 3/4 Inch Light Holes For Kenworth W/ 60-Inch Sleepers

    12 Gauge Customs 3.5 Inch Aluminum Sleeper Panel W/ 13 Rnd 3/4 Inch Light Holes For Kenworth W/ 60-Inch Sleepers

    TWELVE GAUGE

    $432.99
    3.5 Inch Paintable Sleeper Panel W/ 13 Rnd 3/4 Inch Light Holes By 12 Gauge Customs Fits Kenworth W/ 60-Inch Sleepers Fits Kenworth W/ 60-Inch SleepersAdd clean lines and functional lighting options...
    02-101200738
    SKU:
    02-101200738
    Finish Options:
    Paintable
    Product Type:
    Exterior
    Material Options:
    Aluminum
    Height Options:
    3 1/2 Inch
    Light Options:
    Without Lights
    Make:
    Kenworth
    Ready To Ship:
    Yes
    $432.99
    Qty in Cart: 0
    Price:
    $432.99
    Subtotal:
  • 12 Gauge Customs Stainless Steel Colorado Style Rear Window Visor W/ Rolled Edges & Welded Corners For Kenworth

    12 Gauge Customs Stainless Steel Colorado Style Rear Window Visor W/ Rolled Edges & Welded Corners For Kenworth

    TWELVE GAUGE

    $664.99
    Stainless Steel Colorado Style Rear Window Visor W/ Rolled Edges & Welded Corners By 12 Gauge Customs Fits KenworthCreate a bold rear-cab statement on your Kenworth with the Twelve Ga. Stainless...
    02-0904308
    SKU:
    02-0904308
    Product Type:
    Exterior
    Position:
    Rear
    Material Options:
    Stainless Steel
    Make:
    Kenworth
    $664.99
    Qty in Cart: 0
    Price:
    $664.99
    Subtotal:
  • 12 Gauge Customs Stainless Steel Step Box- Frame Mount For Kenworth

    12 Gauge Customs Stainless Steel Step Box- Frame Mount For Kenworth

    TWELVE GAUGE

    $3,198.99
    Frame Mount Stainless Steel Step Box By 12 Gauge Customs Fits KenworthAdd durability and convenience to your Kenworth with the Twelve Gauge Stainless Steel Step Box, designed for frame mounting. Made...
    02-0502034
    SKU:
    02-0502034
    Type Options:
    Frame Mount
    Product Type:
    Frame & Chassis
    Material Options:
    Stainless Steel
    Make:
    Kenworth
    $3,198.99
    Qty in Cart: 0
    Price:
    $3,198.99
    Subtotal:
  • 12 Gauge Customs Stainless Steel Toolbox W/ Steps- Frame Mount For Kenworth

    12 Gauge Customs Stainless Steel Toolbox W/ Steps- Frame Mount For Kenworth

    TWELVE GAUGE

    $2,475.99
    Frame Mount Stainless Steel Toolbox With Steps By 12 Gauge Customs Fits KenworthAdd storage to your Kenworth with the Twelve Gauge Stainless Steel Toolbox with Steps, designed for frame mounting...
    02-0502035
    SKU:
    02-0502035
    Type Options:
    Frame Mount
    Material Options:
    Stainless Steel
    Product Type:
    Toolboxes
    Make:
    Kenworth
    $2,475.99
    Qty in Cart: 0
    Price:
    $2,475.99
    Subtotal:
  • FREE SHIPPING
    12 Gauge Customs 7 Inch Stianless Steel Slammed Glass Visor For Kenworth

    12 Gauge Customs 7 Inch Stianless Steel Slammed Glass Visor For Kenworth

    TWELVE GAUGE

    $745.99
    7 Inch Stianless Steel Slammed Glass Visor By 12 Gauge Customs Fits KenworthElevate the exterior and sun protection of your Kenworth with the Twelve Ga. 7 Inch Stainless Steel Drop Visor. Made from...
    01-09003210
    SKU:
    01-09003210
    Material Options:
    Stainless Steel
    Height Options:
    7 Inch
    Product Type:
    Exterior
    Cab Style:
    Flat Windshield
    Size Options:
    14 Gauge
    Make:
    Peterbilt
    $745.99
    Qty in Cart: 0
    Price:
    $745.99
    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!