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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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  • BESTfit Power Take-Off 1 Inch Shaft Replaces 489XRAHXV3AF

    BESTfit Power Take-Off 1 Inch Shaft Replaces 489XRAHXV3AF

    BESTFIT TRUCK PARTS

    $1,355.99
    1 Inch Shaft Power Take-Off By BESTfit Replaces 489XRAHXV3AFBuilt for strength and dependable operation, the BESTfit 1 Inch Shaft Power Take-Off replaces OEM part number 489XRAHXV3AF for Chelsea 489...
    29-07050100
    SKU:
    29-07050100
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $1,355.99
    Qty in Cart: 0
    Price:
    $1,355.99
    Subtotal:
  • BESTfit Power Take-Off W/ 7/8 Inch Shaft, Replaces 442XFAHXA3XK, MH6SB01XA1RA

    BESTfit Power Take-Off W/ 7/8 Inch Shaft, Replaces 442XFAHXA3XK, MH6SB01XA1RA

    BESTFIT TRUCK PARTS

    $1,479.99
    7/8 Inch Shaft Power Take-Off By BESTfit Replaces 442XFAHXA3XK, MH6SB01XA1RABuilt for strength and reliability, the BESTfit PTO with 7/8 inch 13-tooth spline shaft replaces part numbers 442XFAHXA3XK...
    29-07050097
    SKU:
    29-07050097
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $1,479.99
    Qty in Cart: 0
    Price:
    $1,479.99
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  • BESTfit Power Take-Off 8 Bolt W/ 1 Inch Shaft Replaces 489GCAHXV3XD, MH8GA01XN1SE, TG8BU6805P1BX

    BESTfit Power Take-Off 8 Bolt W/ 1 Inch Shaft Replaces 489GCAHXV3XD, MH8GA01XN1SE, TG8BU6805P1BX

    BESTFIT TRUCK PARTS

    $1,443.99
    8 Bolt W/ 1 Inch Shaft Power Take-Off By BESTfit Replaces 489GCAHXV3XD, MH8GA01XN1SE, TG8BU6805P1BXBuilt for strength and reliability, the BESTfit 8 Bolt Power Take-Off with 1 inch shaft replaces OEM...
    29-07050099
    SKU:
    29-07050099
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $1,443.99
    Qty in Cart: 0
    Price:
    $1,443.99
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  • BESTfit Power Take-Off 6 Bolt Replaces 442XBAHXA3XD

    BESTfit Power Take-Off 6 Bolt Replaces 442XBAHXA3XD

    BESTFIT TRUCK PARTS

    $1,321.99
    6 Bolt Power Take-Off By BESTfit Replaces 442XBAHXA3XDBuilt for strength and consistent performance, the BESTfit Power Take-Off 6 Bolt replaces part number 442XBAHXA3XD and is fully compatible with...
    29-07050096
    SKU:
    29-07050096
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $1,321.99
    Qty in Cart: 0
    Price:
    $1,321.99
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  • BESTfit Power Take-Off, 12V Electric Over Hydraulic, Rotatable Output Flange For Ford F-650, F-750 W/ 6.7L Engine

    BESTfit Power Take-Off, 12V Electric Over Hydraulic, Rotatable Output Flange For Ford F-650, F-750 W/ 6.7L Engine

    BESTFIT TRUCK PARTS

    $3,589.99
    Six Bolt PowerShift Power Take-Off By BESTfit Fits FordMaximize the performance of your Ford F-650 or F-750 with the BESTfit Electric Over Hydraulic PTO, designed for seamless integration with 6.7L...
    29-07050093
    SKU:
    29-07050093
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $3,589.99
    Qty in Cart: 0
    Price:
    $3,589.99
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  • BESTfit Power Take-Off Metric Stud Kit Replaces 442GRAHXA3XD, MH6GJ01XA1SE

    BESTfit Power Take-Off Metric Stud Kit Replaces 442GRAHXA3XD, MH6GJ01XA1SE

    BESTFIT TRUCK PARTS

    $1,333.99
    Metric Stud Kit Power Take-Off By BESTfit Replaces 442GRAHXA3XD, MH6GJ01XA1SEDesigned for strength and precision, the BESTfit Power Take-Off Metric Stud Kit replaces OEM references 442GRAHXA3XD and...
    29-07050095
    SKU:
    29-07050095
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $1,333.99
    Qty in Cart: 0
    Price:
    $1,333.99
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  • RealWheels Replacement Aerodynamic Hub Cover

    RealWheels Replacement Aerodynamic Hub Cover

    REALWHEELS

    $95.99
    Replacement Aerodynamic Hub Cover By RealWheelsUpgrade or replace your wheel system components with the RealWheels Aerodynamic Hub Cover Replacement, built for durability, precision fit, and a...
    09-200300018
    SKU:
    09-200300018
    Material Options:
    Stainless Steel
    Finish Options:
    Polished
    Product Type:
    Wheels
    Make:
    Universal Items
    $95.99
    Qty in Cart: 0
    Price:
    $95.99
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  • BESTfit Power Take- Off W/ Ten Bolt Constant Mesh Remote Replaces 267XGFJPM5XD

    BESTfit Power Take- Off W/ Ten Bolt Constant Mesh Remote Replaces 267XGFJPM5XD

    BESTFIT TRUCK PARTS

    $1,476.99
    Power Take- Off With Ten Bolt Constant Mesh Remote By BESTfit Replaces 267XGFJPM5XDUpgrade your drivetrain with the BESTfit Power Take-Off with Constant Mesh Remote - Replaces 267XGFJPM5XD, designed...
    29-07050092
    SKU:
    29-07050092
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $1,476.99
    Qty in Cart: 0
    Price:
    $1,476.99
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  • FASS Replacement Pump Return Line Fitting

    FASS Replacement Pump Return Line Fitting

    FASS

    $30.16
    Replacement Return Line Fitting For FASS Fuel PumpUpgrade or repair your fuel system with the FASS TS220G Replacement Pump Return Line Fitting, engineered for precision fitment and long-lasting...
    29-0703506
    SKU:
    29-0703506
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $30.16
    Qty in Cart: 0
    Price:
    $30.16
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  • 4 Inch Incandescent P/T/C Light Kit- Amber

    4 Inch Incandescent P/T/C Light Kit- Amber

    UNITED PACIFIC

    $5.39
    4 Inch Amber Incandescent P/T/C Light KitUpgrade your vehicle's lighting system with the 4 Inch Amber Incandescent P/T/C Light Kit, designed for durability, safety, and dependable performance...
    09-16000166
    SKU:
    09-16000166
    Shape Options:
    Round
    Style Options:
    Incandescent
    Diameter Options:
    4 Inch
    Product Type:
    Lighting
    Position:
    Kit Full
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $5.39
    Qty in Cart: 0
    Price:
    $5.39
    Subtotal:
  • BESTfit Super Torque Power Take-Off W/ Out Air Shift Kit Replaces 680XRAHXV3XD

    BESTfit Super Torque Power Take-Off W/ Out Air Shift Kit Replaces 680XRAHXV3XD

    BESTFIT TRUCK PARTS

    $2,040.99
    Two Gear Heavy Duty Power Take-Off W/ Out Air Shift Kit BY BESTfit Replaces 680XRAHXV3XDUpgrade your equipment with the BESTfit Super Torque Power Take-Off without Air Shift Kit - 680XRAHXV3XD...
    29-07050091
    SKU:
    29-07050091
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $2,040.99
    Qty in Cart: 0
    Price:
    $2,040.99
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  • On Sale
    Limited Quantity Available
    4 Inch Stainless Steel Security Ring

    4 Inch Stainless Steel Security Ring

    GRAND GENERAL

    Now: $3.74
    Was: $14.17
    Security Ring 4 Inch Stainless SteelEnhance lighting protection with the 4 Inch Stainless Steel Security Lock Ring, designed for secure installation of grommet-style LED lights on heavy-duty vehicles...
    09-16020292
    SKU:
    09-16020292
    Product Type:
    Lighting
    Material Options:
    Stainless Steel
    Diameter Options:
    4 Inch
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Now: $3.74
    Was: $14.17
    Qty in Cart: 0
    Price:
    Now: $3.74
    Was: $14.17
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  • Moto Mirror Switch Assembly

    Moto Mirror Switch Assembly

    BOSTROM TRUCK SEATS

    $161.99
    Dual Motor Moto Mirror Switch AssemblyUpgrade or replace your mirror control system with the Moto Mirror Switch Assembly, engineered for strength, precision, and long-lasting operation. Built with a...
    09-1530090
    SKU:
    09-1530090
    Product Type:
    Interior
    Make:
    Universal Items
    $161.99
    Qty in Cart: 0
    Price:
    $161.99
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  • Chrome Air Valve W/ Stainless Steel Emergency Plaque

    Chrome Air Valve W/ Stainless Steel Emergency Plaque

    UNITED PACIFIC

    $16.75
    Air Valve Chrome W/ Stainless Steel Emergency PlaqueEnhance your truck's control system with the Chrome Air Valve Air Brake Knob with Stainless Steel Emergency Plaque, engineered for durability,...
    09-15010139
    SKU:
    09-15010139
    Product Type:
    Interior
    Finish Options:
    Chrome-Plated
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $16.75
    Qty in Cart: 0
    Price:
    $16.75
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  • Polished Diamond Plate Aluminum Shifter Floor Cover Plate

    Polished Diamond Plate Aluminum Shifter Floor Cover Plate

    REALWHEELS

    $474.99
    Shifter Floor Cover Plate- Polished* High Quality Shifter Floor Cover Plate* Polished Billet Aluminum* Mirror Finish* Diamond Fine-Cut Billet  - A New Design Featuring A Smaller Diamond Pattern And A...
    09-15130912
    SKU:
    09-15130912
    Height Options:
    3/8 Inch
    Material Options:
    Billet Aluminum
    Product Type:
    Interior
    Make:
    Universal Items
    Location:
    Made In USA
    Finish Options:
    Polished
    Width Options:
    10 5/8 Inch
    Length Options:
    20 1/2 Inch
    Style Options:
    Diamond Cut
    $474.99
    Qty in Cart: 0
    Price:
    $474.99
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  • EZ Claw Black Steel Versa Mount Bracket

    EZ Claw Black Steel Versa Mount Bracket

    EZ CLAW

    $96.99
    Durable, reliable, and versatile, the EZ Claw Black Steel Versa Mount Bracket is perfect for mounting accessories on semi cabs. With 8 or 11 inches of clearance off the back of the cab, the bracket...
    PPR_300771
    SKU:
    PPR_300771
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $96.99
    Qty in Cart: 0
    Price:
    $96.99
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  • Knoedler Air Chief Mid Back Seat W/ 3 Bladder Lumbar, LH Arm- Black & Red Synthetic Leather

    Knoedler Air Chief Mid Back Seat W/ 3 Bladder Lumbar, LH Arm- Black & Red Synthetic Leather

    KNOEDLER

    $1,439.99
    Long drives demand superior support, and the Knoedler Air Chief Mid Back Seat delivers exactly that. Designed as a low rider seat with armrest, it features a 3-bladder lumbar system, dual-chamber...
    PPR_300773
    SKU:
    PPR_300773
    Color:
    Black
    Material Options:
    Synthetic Leather
    Height Options:
    20 Inch
    Style Options:
    Mid Back
    Degree Options:
    45
    Product Type:
    Seats
    Material Options:
    Leather
    Make:
    Universal Items
    $1,439.99
    Qty in Cart: 0
    Price:
    $1,439.99
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  • 34 Inch Stainless Steel Rear Razored Reverse T-Bar Light Bar W/ Light Hole Options

    34 Inch Stainless Steel Rear Razored Reverse T-Bar Light Bar W/ Light Hole Options

    ARANDA TRUCK ACCESSORIES

    $1,412.99
    Reinforce both safety and style with this 34-inch stainless steel rear razored reverse T-bar light bar. Featuring a razored reverse T-bar design and light holes, it allows truckers to mount multiple...
    PPR_300774
    SKU:
    PPR_300774
    Light Options:
    Without Lights
    Size Options:
    14 Gauge
    Material Options:
    Stainless Steel
    Width Options:
    34 Inch
    Finish Options:
    Polished
    Location:
    Made In USA
    Product Type:
    Bumpers
    Make:
    Universal Items
    $1,412.99
    Qty in Cart: 0
    Price:
    $1,412.99
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  • EZ Claw Flange Mount 3-in-1 Non Wrapped and Hydraulic Line Saver Kit W/ 2 Slings, 1 Hose And Cable Block, 25 Lb & 40 Lb Tensioner

    EZ Claw Flange Mount 3-in-1 Non Wrapped and Hydraulic Line Saver Kit W/ 2 Slings, 1 Hose And Cable Block, 25 Lb & 40 Lb Tensioner

    EZ CLAW

    $831.99
    Engineered for trucks that run hard and demand reliable hose control, the EZ Claw Flange Mount 3-in-1 Non Wrapped and Hydraulic Line Saver Kit. This comprehensive kit features a 25 lb tensioner with...
    PPR_300767
    SKU:
    PPR_300767
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $831.99
    Qty in Cart: 0
    Price:
    $831.99
    Subtotal:
  • EZ Claw Black Steel Flange Mount Bracket

    EZ Claw Black Steel Flange Mount Bracket

    EZ CLAW

    $96.99
    Reliable cab-mounted support is easy with the EZ Claw Black Steel Flange Mount Bracket. With 11 inches of clearance and precision laser-cut, robotically welded construction, it provides a durable...
    PPR_300769
    SKU:
    PPR_300769
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $96.99
    Qty in Cart: 0
    Price:
    $96.99
    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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