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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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  • FREE SHIPPING OVER $249
    3/4 Inch Black Plastic Wire Loom 50 Feet

    3/4 Inch Black Plastic Wire Loom 50 Feet

    PARTS DISTRIBUTING

    $34.32
    Black Plastic LoomThis black plastic wire loom is sold as a 50-foot roll and is 3/4 inch in diameter. It is a great way to protect and organize your wire, cable, and hose applications. The wire loom...
    09-16040136
    SKU:
    09-16040136
    Truck Class:
    Heavy Duty
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $34.32
    Qty in Cart: 0
    Price:
    $34.32
    Subtotal:
  • FREE SHIPPING OVER $249
    1/4 Inch Black Plastic Wire Loom 100 Feet

    1/4 Inch Black Plastic Wire Loom 100 Feet

    PARTS DISTRIBUTING

    $43.69
    1/4 Inch Black Plastic Wire Loom 100 FeetThis black plastic wire loom is sold as a 100-foot roll and is .25 inch in diameter. It is a great way to protect and organize your wire, cable, and hose...
    09-16040132
    SKU:
    09-16040132
    Truck Class:
    Heavy Duty
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $43.69
    Qty in Cart: 0
    Price:
    $43.69
    Subtotal:
  • FREE SHIPPING OVER $249
    Turnpike Truck Trim 9/10 Speed Sloped Replacement Shift Knob For Eaton Fuller-Replaces A6909

    Turnpike Truck Trim 9/10 Speed Sloped Replacement Shift Knob For Eaton Fuller-Replaces A6909

    TURNPIKE TRUCK TRIM

    $49.47
    Replacement Shift Knob Sloped Style For 9 or 10 Speed Eaton-Fuller TransmissionsThis High Quality 9 Or 10 Speed Sloped Replacement Shift Knob Is For An Eaton Fuller Transmission. It Features A Black...
    09-151341
    SKU:
    09-151341
    Style Options:
    Sloped
    Truck Class:
    Heavy Duty
    Product Type:
    Interior
    Color:
    Black
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $49.47
    Qty in Cart: 0
    Price:
    $49.47
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  • 5 ID X 120 Inch Stainless Steel Flex Pipe by TPHD

    5 ID X 120 Inch Stainless Steel Flex Pipe by TPHD

    TPHD

    $352.99
    Exhaust Flex Pipe - 5 Inch Inside Diameter X 10 Feet LengthThis exhaust flex pipe is made of high quality 409 stainless steel, providing better corrosion resistance than galvanized or aluminized flex...
    09-080451K120
    SKU:
    09-080451K120
    Finish Options:
    Chrome-Plated
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $352.99
    Qty in Cart: 0
    Price:
    $352.99
    Subtotal:
  • FREE SHIPPING OVER $249
    5 ID X 12 Inch Stainless Steel Exhaust Flex Pipe

    5 ID X 12 Inch Stainless Steel Exhaust Flex Pipe

    AFTERMARKET

    $37.97
    Exhaust Flex Pipe - 5 Inch Inside Diameter X 1 Foot LengthIf you're noticing that your exhaust is getting louder, it might be a sign that your Exhaust Flex Pipe needs a swap. This stainless steel...
    09-0804512
    SKU:
    09-0804512
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    Make:
    Universal Items
    Diameter Options:
    5 Inch
    Material Options:
    Stainless Steel
    Length Options:
    12 Inch
    Ready To Ship:
    Yes
    $37.97
    Qty in Cart: 0
    Price:
    $37.97
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  • 5 ID X 25 Ft Stainless Steel Exhaust Flex Pipe

    5 ID X 25 Ft Stainless Steel Exhaust Flex Pipe

    PARTS DISTRIBUTING

    $923.99
    Exhaust Flex Pipe - 5 Inch Inside Diameter X 25 Feet LengthLooking for flexibility and durability? Check out our 5 Inch ID Exhaust Flex Pipe. Made from high-quality stainless steel, it's designed to...
    09-080451KR
    SKU:
    09-080451KR
    Finish Options:
    Chrome-Plated
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $923.99
    Qty in Cart: 0
    Price:
    $923.99
    Subtotal:
  • FREE SHIPPING OVER $249
    5 ID X 24 Inch Stainless Steel Exhaust Flex Pipe

    5 ID X 24 Inch Stainless Steel Exhaust Flex Pipe

    AUTOMANN USA

    $65.99
    Exhaust Flex Pipe - 5 Inch Inside Diameter X 2 Feet LengthThis stainless steel exhaust flex pipe is pre-cut to measure 24 inches (2 feet) for your convenience. It's durable and rust-resistant, easily...
    09-0804524
    SKU:
    09-0804524
    Finish Options:
    Chrome-Plated
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $65.99
    Qty in Cart: 0
    Price:
    $65.99
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  • 15 Inch Stainless Steel Regular Donald Air Cleaner W/ Brackets For Peterbilt

    15 Inch Stainless Steel Regular Donald Air Cleaner W/ Brackets For Peterbilt

    PHD CUSTOMS

    $804.99
    15 Inch Regular Donald Air Cleaner W/ Brackets Fits PeterbiltKeep your Peterbilt truck running at peak efficiency with the 15 Inch Stainless Steel Regular Donald Air Cleaner with Brackets...
    X15INPB
    SKU:
    X15INPB
    Height Options:
    15 Inch
    Light Options:
    Without Lights
    Product Type:
    Exterior
    Material Options:
    Stainless Steel
    Style Options:
    Donaldson Style
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $804.99
    Qty in Cart: 0
    Price:
    $804.99
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  • 15 Inch Stainless Steel Regular Donald Air Cleaner W/ Brackets For Kenworth

    15 Inch Stainless Steel Regular Donald Air Cleaner W/ Brackets For Kenworth

    PHD CUSTOMS

    $767.99
    15 Inch Regular Donald Air Cleaner W/ Brackets Fits KenworthEnsure your Kenworth truck breathes easier with the 15 Inch Stainless Steel Regular Donald Air Cleaner with Brackets. Crafted from...
    X15INKW
    SKU:
    X15INKW
    Height Options:
    15 Inch
    Light Options:
    Without Lights
    Material Options:
    Stainless Steel
    Style Options:
    Donaldson Style
    Product Type:
    Exterior
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $767.99
    Qty in Cart: 0
    Price:
    $767.99
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  • Black Full Leather Air Ride Seat W/ Air Vent Cooling & Heat, Dual Lumbar Support & Dual Arm Rests By Prime Seating

    Black Full Leather Air Ride Seat W/ Air Vent Cooling & Heat, Dual Lumbar Support & Dual Arm Rests By Prime Seating

    PRIME SEATING

    $1,459.99
    Prime Seating Black Full Leather Air Ride Seat W/ Air Vent Cooling & Heat, Dual Lumbar Support & Dual Arm RestsExperience next-level comfort with the Prime Seating Black Full Leather Air Ride Seat,...
    TC600LBKBIS
    SKU:
    TC600LBKBIS
    Height Options:
    48 Inch
    Length Options:
    26 Inch
    Type Options:
    Heated
    Color:
    Black
    Width Options:
    26 Inch
    Material Options:
    Leather
    Product Type:
    Seats
    Make:
    Universal Items
    $1,459.99
    Qty in Cart: 0
    Price:
    $1,459.99
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  • Black & Gray Sunglasses

    Black & Gray Sunglasses

    4 STATE TRUCKS

    $14.29
    Sunglasses- Black & GrayWhether you're heading out on a long haul or enjoying time off, these Black & Gray Sunglasses deliver clean style with dependable comfort. Featuring a 4 State Oakley-inspired...
    4ST00207
    SKU:
    4ST00207
    Color:
    Gray
    Product Type:
    Apparel
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    $14.29
    Qty in Cart: 0
    Price:
    $14.29
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  • Black & Red Sunglasses

    Black & Red Sunglasses

    4 STATE TRUCKS

    $14.29
    Sunglasses- Black & RedComplete your look with these Black & Red Sunglasses, designed with a bold 4 State Oakley-style frame that drivers love. Crafted as high-quality sunglasses, they provide...
    4ST00206
    SKU:
    4ST00206
    Product Type:
    Apparel
    Material Options:
    Plastic/Poly
    Color:
    Red
    Make:
    Universal Items
    $14.29
    Qty in Cart: 0
    Price:
    $14.29
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  • Plastic Front Window Regulator- Driver Side Replaces R21-6013 For Kenworth & Peterbilt

    Plastic Front Window Regulator- Driver Side Replaces R21-6013 For Kenworth & Peterbilt

    DAYTON / DORMAN

    $314.99
    Kenworth & Peterbilt Driver Side Front Window RegulatorDesigned for reliable performance and easy replacement, this Plastic Driver Side Front Window Regulator Replaces R21-6013 helps restore proper...
    29-15300007
    SKU:
    29-15300007
    Product Type:
    Interior
    Position:
    Driver Side
    Material Options:
    Plastic/Poly
    Make:
    Kenworth
    Make:
    Peterbilt
    $314.99
    Qty in Cart: 0
    Price:
    $314.99
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  • Stainless Steel Exhaust Bellow Joint Expansion Replaces 2432531

    Stainless Steel Exhaust Bellow Joint Expansion Replaces 2432531

    DAYTON / DORMAN

    $253.99
    Exhaust Bellow Joint ExpansionKeep your diesel engine protected with this Stainless Steel Exhaust Bellow Joint Expansion, designed to replace 2432531. Made from high-quality stainless steel, it comes...
    29-08040043
    SKU:
    29-08040043
    Material Options:
    Stainless Steel
    Length Options:
    3 1/2 Inch
    Diameter Options:
    2 1/2 Inch
    Product Type:
    Exhaust
    Make:
    Universal Items
    $253.99
    Qty in Cart: 0
    Price:
    $253.99
    Subtotal:
  • 15 Inch Stainless Steel Regular Donaldson Air Cleaner W/ Out Brackets

    15 Inch Stainless Steel Regular Donaldson Air Cleaner W/ Out Brackets

    PHD CUSTOMS

    $774.99
    15 Inch Regular Donaldson Air Cleaner W/ Out BracketsOptimize airflow and engine protection with this 15-Inch Stainless Steel Regular Donaldson Air Cleaner, perfect for heavy-duty diesel systems...
    29-09050063
    SKU:
    29-09050063
    Style Options:
    Donaldson Style
    Product Type:
    Exterior
    Material Options:
    Stainless Steel
    Height Options:
    15 Inch
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $774.99
    Qty in Cart: 0
    Price:
    $774.99
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  • Camshaft Replaces 3684306, 191835 For Cummins ISX Engine

    Camshaft Replaces 3684306, 191835 For Cummins ISX Engine

    AKMI

    $1,148.99
    Cummins ISX CamshaftKeep your Cummins ISX engine running like new with this premium Camshaft, designed to replace 3684306 and 191835. Engineered for durability and precision, it guarantees smooth...
    29-070400060
    SKU:
    29-070400060
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $1,148.99
    Qty in Cart: 0
    Price:
    $1,148.99
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  • FREE SHIPPING OVER $249
    Stainless Steel Turbocharger Clamp Replaces 5304600

    Stainless Steel Turbocharger Clamp Replaces 5304600

    DAYTON / DORMAN

    $30.88
    T-Bolt V-Band Turbocharger ClampProtect your turbocharger and maintain engine efficiency with this high-quality Stainless Steel Turbocharger Clamp, compatible with 5304600. Constructed with a T-bolt...
    29-08050000
    SKU:
    29-08050000
    Material Options:
    Stainless Steel
    Length Options:
    2 1/2 Inch
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Make:
    Universal Items
    $30.88
    Qty in Cart: 0
    Price:
    $30.88
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  • Camshaft Replaces 4101476, 191889 For Cummins ISX Engine

    Camshaft Replaces 4101476, 191889 For Cummins ISX Engine

    AKMI

    $1,095.99
    Cummins ISX CamshaftDon't compromise on your engine's reliability-this Camshaft for Cummins ISX engines, replacing 4101476 and 191889, is built to deliver consistent performance and durability...
    29-070400059
    SKU:
    29-070400059
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Make:
    Universal Items
    $1,095.99
    Qty in Cart: 0
    Price:
    $1,095.99
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  • Steel Oil Pan Replaces 3958209, CMP06A, 141323 For Cummins ISB 6.7L & QSB Engines

    Steel Oil Pan Replaces 3958209, CMP06A, 141323 For Cummins ISB 6.7L & QSB Engines

    AKMI

    $243.99
    15 Quart Oil Pan Fits Models W/ Cummins ISB 6.7L & QSB EnginesDon't let a worn oil pan compromise your Cummins ISB 6.7L or QSB engine. This replacement Steel Oil Pan, compatible with part numbers...
    29-070400061
    SKU:
    29-070400061
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Make:
    Universal Items
    $243.99
    Qty in Cart: 0
    Price:
    $243.99
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  • Composite Oil Pan With Front Sump Replaces A4730103413 For Detroit Diesel DD15 Engine

    Composite Oil Pan With Front Sump Replaces A4730103413 For Detroit Diesel DD15 Engine

    AUTOMANN USA

    $1,013.99
    Detroit Diesel DD15 Oil Pan With Front SumpMaximize engine efficiency with this Detroit Diesel DD15 Composite Oil Pan with Front Sump. Crafted from high-strength composite material, it provides...
    29-070400057
    SKU:
    29-070400057
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $1,013.99
    Qty in Cart: 0
    Price:
    $1,013.99
    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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