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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 8 Bolt Air Shift Replaces 489GUAHXA3XD

    BESTfit Power Take-Off 8 Bolt Air Shift Replaces 489GUAHXA3XD

    BESTFIT TRUCK PARTS

    $1,415.99
    8 Bolt Air Shift Power Take-Off By BESTfit Replaces 489GUAHXA3XDBuilt for strength and reliability, the BESTfit 8 Bolt Air Shift Power Take-Off replaces OEM reference 489GUAHXA3XD for Chelsea 489...
    29-07050116
    SKU:
    29-07050116
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $1,415.99
    Qty in Cart: 0
    Price:
    $1,415.99
    Subtotal:
  • BESTfit Power Take-Off 8 Bolt W/ 1 Inch Shaft Replaces 489XSAHXV3AF

    BESTfit Power Take-Off 8 Bolt W/ 1 Inch Shaft Replaces 489XSAHXV3AF

    BESTFIT TRUCK PARTS

    $1,443.99
    8 Bolt W/1 Inch Shaft Power Take-Off By BESTfit Replaces 489XSAHXV3AFBuilt for strength and reliability, the BESTfit 8 Bolt Power Take-Off with 1 inch shaft replaces OEM reference 489XSAHXV3AF for...
    29-07050119
    SKU:
    29-07050119
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $1,443.99
    Qty in Cart: 0
    Price:
    $1,443.99
    Subtotal:
  • BESTfit Power Take-Off W/ 7/8 Inch Shaft, Rotatable Output Flange Replaces 271MAAJPB5RB, 272MAAJPB3RB

    BESTfit Power Take-Off W/ 7/8 Inch Shaft, Rotatable Output Flange Replaces 271MAAJPB5RB, 272MAAJPB3RB

    BESTFIT TRUCK PARTS

    $3,350.99
    Power Take-Off W/ 7/8 Inch Shaft, Rotatable Output Flange By BESTfit Replaces 271MAAJPB5RB, 272MAAJPB3RBBuilt for strength and precision, the BESTfit 7/8 inch Shaft Power Take-Off with rotatable SAE...
    29-07050113
    SKU:
    29-07050113
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $3,350.99
    Qty in Cart: 0
    Price:
    $3,350.99
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  • BESTfit Power Take-Off 8 Bolt W/O Install Kit Replaces 680XFAHXV3XD

    BESTfit Power Take-Off 8 Bolt W/O Install Kit Replaces 680XFAHXV3XD

    BESTFIT TRUCK PARTS

    $2,040.99
    8 Bolt Power Take-Off W/O Install Kit By BESTfit Replaces 680XFAHXV3XDBuilt for strength and dependable operation, the BESTfit 8 Bolt PTO Without Install Kit replaces OEM reference 680XFAHXV3XD for...
    29-07050102
    SKU:
    29-07050102
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $2,040.99
    Qty in Cart: 0
    Price:
    $2,040.99
    Subtotal:
  • BESTfit Power Take-Off 6 Bolt W/O Shaft Brake Replaces 270GAHVPB3XD, 272GAHVPB3XD

    BESTfit Power Take-Off 6 Bolt W/O Shaft Brake Replaces 270GAHVPB3XD, 272GAHVPB3XD

    BESTFIT TRUCK PARTS

    $3,058.99
    6 Bolt W/O Shaft Brake Power Take-Off By BESTfit Replaces 270GAHVPB3XD, 272GAHVPB3XDBuilt for strength and reliability, the BESTfit 6 Bolt PTO Without Shaft Brake replaces OEM references 270GAHVPB3XD...
    29-07050112
    SKU:
    29-07050112
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $3,058.99
    Qty in Cart: 0
    Price:
    $3,058.99
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  • BESTfit Power Take-Off 6 Bolt 3 Assembly Arrangement Replaces 236XKAHXA3XD, 230XQAJXA3XD, 272XMAJXA3XD

    BESTfit Power Take-Off 6 Bolt 3 Assembly Arrangement Replaces 236XKAHXA3XD, 230XQAJXA3XD, 272XMAJXA3XD

    BESTFIT TRUCK PARTS

    $2,956.99
    6 Bolt 3 Assembly Arrangement Power Take-Off By BESTfit Replaces 236XKAHXA3XD, 230XQAJXA3XD, 272XMAJXA3XDBuilt for strength and precision, the BESTfit 6 Bolt 3 Assembly Power Take-Off replaces OEM...
    29-07050115
    SKU:
    29-07050115
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $2,956.99
    Qty in Cart: 0
    Price:
    $2,956.99
    Subtotal:
  • BESTfit Power Take-Off W/ 3 Assembly Arrangement Replaces 680GQAHXA3XD

    BESTfit Power Take-Off W/ 3 Assembly Arrangement Replaces 680GQAHXA3XD

    BESTFIT TRUCK PARTS

    $2,225.99
    Power Take-Off W/ 3 Assembly Arrangement By BESTfit Replaces 680GQAHXA3XDBuilt for strength and reliability, the BESTfit 3 Assembly Arrangement Power Take-Off replaces OEM reference 680GQAHXA3XD for...
    29-07050109
    SKU:
    29-07050109
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $2,225.99
    Qty in Cart: 0
    Price:
    $2,225.99
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  • BESTfit Power Take-Off 8 Bolt W/ Metric Stud Kit Replaces 489GCAHXV3XD, MH8GA01XN1SE, TG8BU6805P1BX

    BESTfit Power Take-Off 8 Bolt W/ Metric Stud Kit Replaces 489GCAHXV3XD, MH8GA01XN1SE, TG8BU6805P1BX

    BESTFIT TRUCK PARTS

    $1,289.99
    8 Bolt W/ Metric Stud Kit Power Take-Off By BESTfit Replaces 489GCAHXV3XD, MH8GA01XN1SE, TG8BU6805P1BXBuilt for heavy-duty use, the BESTfit 8 Bolt Power Take-Off with Metric Stud Kit replaces OEM...
    29-07050098
    SKU:
    29-07050098
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $1,289.99
    Qty in Cart: 0
    Price:
    $1,289.99
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  • BESTfit Power Take-Off 6 Bolt 12V Electric Over Hydraulic For Ford F-650, F-750 W/ 6.7L Engine

    BESTfit Power Take-Off 6 Bolt 12V Electric Over Hydraulic For Ford F-650, F-750 W/ 6.7L Engine

    BESTFIT TRUCK PARTS

    $3,336.99
    6 Bolt 12V Electric Over Hydraulic Power Take-Off By BESTfit Fits Ford F-650, F-750 W/ 6.7L EngineBuilt for heavy-duty performance, the BESTfit 12V Electric Over Hydraulic 6 Bolt PTO is designed...
    29-07050111
    SKU:
    29-07050111
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $3,336.99
    Qty in Cart: 0
    Price:
    $3,336.99
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  • BESTfit Power Take-Off 8 Bolt Replaces 489GAAHXA5XD, TG8BU6804A3BX

    BESTfit Power Take-Off 8 Bolt Replaces 489GAAHXA5XD, TG8BU6804A3BX

    BESTFIT TRUCK PARTS

    $1,415.99
    8 Bolt Power Take-Off By BESTfit Replaces 489GAAHXA5XD, TG8BU6804A3BXBuilt for strength and dependable operation, the BESTfit 8 Bolt Power Take-Off replaces OEM reference 489GAAHXA5XD and...
    29-07050108
    SKU:
    29-07050108
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $1,415.99
    Qty in Cart: 0
    Price:
    $1,415.99
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  • BESTfit Power Take-Off W/ Low Profile Mount Replaces 271GBHVPB5AF, 272NBHVPB5RF

    BESTfit Power Take-Off W/ Low Profile Mount Replaces 271GBHVPB5AF, 272NBHVPB5RF

    BESTFIT TRUCK PARTS

    $3,450.99
    Low Profile Mount Power Take-Off By BESTfit Replaces 271GBHVPB5AF, 272NBHVPB5RFBuilt for strength and reliability, the BESTfit Low Profile Power Take-Off replaces OEM references 271GBHVPB5AF and...
    29-07050105
    SKU:
    29-07050105
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $3,450.99
    Qty in Cart: 0
    Price:
    $3,450.99
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  • BESTfit Power Take-Off Z Mounting Kit Replaces 328170-77XB, 32817077X

    BESTfit Power Take-Off Z Mounting Kit Replaces 328170-77XB, 32817077X

    BESTFIT TRUCK PARTS

    $23.99
    Power Take-Off Z Mounting Kit By BESTfit Replaces 328170-77XB, 32817077XUpgrade your PTO installation with the BESTfit Z Mounting Kit, a dependable replacement for 328170-77XB and 32817077X...
    29-07050094
    SKU:
    29-07050094
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $23.99
    Qty in Cart: 0
    Price:
    $23.99
    Subtotal:
  • BESTfit Power Take-Off 6 Bolt W/O Install Kit Replaces 442XFAHXV3XD

    BESTfit Power Take-Off 6 Bolt W/O Install Kit Replaces 442XFAHXV3XD

    BESTFIT TRUCK PARTS

    $1,188.99
    6 Bolt Power Take-Off W/O Install Kit By BESTfit Replaces 442XFAHXV3XDBuilt for strength and dependable operation, the BESTfit 6 Bolt PTO Without Install Kit replaces OEM reference 442XFAHXV3XD for...
    29-07050107
    SKU:
    29-07050107
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $1,188.99
    Qty in Cart: 0
    Price:
    $1,188.99
    Subtotal:
  • BESTfit Power Take-Off 6 Bolt W/ 7/8 Inch Shaft Replaces 230GKAJXA3XK, 272GDAJXA3RK

    BESTfit Power Take-Off 6 Bolt W/ 7/8 Inch Shaft Replaces 230GKAJXA3XK, 272GDAJXA3RK

    BESTFIT TRUCK PARTS

    $3,221.99
    6 Bolt W/ 7/8 Inch Shaft Power Take-Off By BESTfit Replaces 230GKAJXA3XK, 272GDAJXA3RKBuilt for strength and dependable performance, the BESTfit 6 Bolt Power Take-Off with 7/8 inch shaft replaces OEM...
    29-07050104
    SKU:
    29-07050104
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $3,221.99
    Qty in Cart: 0
    Price:
    $3,221.99
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  • BESTfit Power Take-Off Geared Adapter Replaces 626XAHX3XX

    BESTfit Power Take-Off Geared Adapter Replaces 626XAHX3XX

    BESTFIT TRUCK PARTS

    $823.99
    Geared Adaptor Power Take-Off By BESTfit Replaces 626XAHX3XXBuilt for strength and precision, the BESTfit Geared Adapter Power Take-Off replaces OEM reference 626XAHX3XX for Chelsea 626 Series...
    29-07050101
    SKU:
    29-07050101
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $823.99
    Qty in Cart: 0
    Price:
    $823.99
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  • BESTfit Power Take-Off 8 Bolt Super Torque Replaces 680XSAHXA5XD

    BESTfit Power Take-Off 8 Bolt Super Torque Replaces 680XSAHXA5XD

    BESTFIT TRUCK PARTS

    $2,165.99
    8 Bolt Super Torque Power Take-Off By BESTfit Replaces 680XSAHXA5XDBuilt for heavy-duty performance, the BESTfit 8 Bolt Super Torque Power Take-Off replaces OEM reference 680XSAHXA5XD for Chelsea 680...
    29-07050103
    SKU:
    29-07050103
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $2,165.99
    Qty in Cart: 0
    Price:
    $2,165.99
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  • BESTfit Super Torque Power Take-Off W/ Out Air Shift Kit Replaces 680GRAHXV3XD

    BESTfit Super Torque Power Take-Off W/ Out Air Shift Kit Replaces 680GRAHXV3XD

    BESTFIT TRUCK PARTS

    $2,099.99
    Super Torque Power Take-Off W/ Out Air Shift Kit By BESTfit Replaces 680GRAHXV3XDUpgrade your drivetrain with the BESTfit Super Torque PTO without Air Shift Kit, designed to replace the 680GRAHXV3XD...
    29-07050090
    SKU:
    29-07050090
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $2,099.99
    Qty in Cart: 0
    Price:
    $2,099.99
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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
    Subtotal:
  • 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
    Subtotal:
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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.


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