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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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  • Quantity
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  • 6-5 X 48 Inch Chrome West Coast Turn Exhaust Stack By BESTfit

    6-5 X 48 Inch Chrome West Coast Turn Exhaust Stack By BESTfit

    BESTFIT TRUCK PARTS

    $373.99
    BESTfit 6-5 X 48 Inch West Coast Turn Exhaust Stack* High Quality Exhaust Stack* West Coast * Chrome* 6 Inch Outer Diameter Reduces To 5 Inch Outer Diameter* 48 Inch Height* Sold Individually*...
    09-086536082
    SKU:
    09-086536082
    Product Type:
    Exhaust
    Material Options:
    Steel
    Finish Options:
    Chrome-Plated
    Height Options:
    48 Inch
    Style Options:
    West Coast Turn
    Diameter Options:
    6 Inch
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $373.99
    Qty in Cart: 0
    Price:
    $373.99
    Subtotal:
  • 7 X 52 Inch Chrome Plated Stainless Steel Exhaust Spool

    7 X 52 Inch Chrome Plated Stainless Steel Exhaust Spool

    LINCOLN CHROME

    $529.99
    7 X 52 Inch Exhaust Spool* High Quality Exhaust Spool* Has Tapered Top To Match OD Stack And On Inlet End* Chrome Plated Stainless Steel* Dimensions:  - 7 Inch OD  - 52 Inch Height* Sold...
    09-082705236
    SKU:
    09-082705236
    Finish Options:
    Chrome-Plated
    Material Options:
    Steel
    Product Type:
    Exhaust
    Height Options:
    52 Inch
    Diameter Options:
    7 Inch
    Location:
    Made In USA
    Style Options:
    Tapered
    Make:
    Universal Items
    $529.99
    Qty in Cart: 0
    Price:
    $529.99
    Subtotal:
  • 7-5 X 48 Inch Chrome Short 30 Turn Exhaust Stack

    7-5 X 48 Inch Chrome Short 30 Turn Exhaust Stack

    LINCOLN CHROME

    $446.99
    7-5 OD X 48 Inch Short 30 Turn Exhaust Stack* High Quality Exhaust Stack* Plain End* Short 30 Top* Chrome Plated Stainless Steel* 48 Inch Length* 7 Inch To 5 Inch Outer Diameter* Sold Individually*...
    09-08704806
    SKU:
    09-08704806
    Product Type:
    Exhaust
    Finish Options:
    Chrome-Plated
    Style Options:
    Short 30 Turn
    Location:
    Made In USA
    Height Options:
    48 Inch
    Make:
    Universal Items
    Material Options:
    Stainless Steel
    Diameter Options:
    7 To 5 Inch
    $446.99
    Qty in Cart: 0
    Price:
    $446.99
    Subtotal:
  • 5 to 4 X 8 Inch Aluminized Steel Turbo Adapter

    5 to 4 X 8 Inch Aluminized Steel Turbo Adapter

    BESTFIT TRUCK PARTS

    $69.03
    5 to 4 X 8 Inch Turbo Adapter* High Quality Exhaust Pipe Reducer* Turbo/Manifold Adapter* Made Of Aluminized Steel* Dimensions:  - 8 Inch Length  - 4 Inch Inner Diameter  - 5 Inch Outer Diameter To 5...
    09-08011443
    SKU:
    09-08011443
    Product Type:
    Exhaust
    Diameter Options:
    5 Inch
    Length Options:
    8 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    $69.03
    Qty in Cart: 0
    Price:
    $69.03
    Subtotal:
  • 7-5 X 36 Inch Chrome Bull Hauler Exhaust Stack

    7-5 X 36 Inch Chrome Bull Hauler Exhaust Stack

    LINCOLN CHROME

    $460.99
    7-5 OD X 36 Inch Bull Hauler Exhaust Stack* High Quality Exhaust Stack* Bullhorn Top Style* Expanded And Slotted End* Chrome Plated Finish* 36 Inch Height* 7 Inch Reduced To 5 Inch Inner Diameter*...
    09-08010981
    SKU:
    09-08010981
    Finish Options:
    Chrome-Plated
    Height Options:
    36 Inch
    Product Type:
    Exhaust
    Location:
    Made In USA
    Make:
    Universal Items
    Material Options:
    Steel
    Style Options:
    Bullhorn Top Style
    $460.99
    Qty in Cart: 0
    Price:
    $460.99
    Subtotal:
  • 6-5 X 36 Inch Chrome Curve Turn Exhaust Stack

    6-5 X 36 Inch Chrome Curve Turn Exhaust Stack

    TRUX ACCESSORIES

    $188.99
    6-5 OD X 36 Inch Curve Turn Exhaust Stack* High Quality Exhaust Stack* Curved Top Style* Plain End* Chrome Plated Steel* 36 Inch Height* 6 Inch Reduced To 5 Inch Outer Diameter* Sold Individually*...
    09-08011453
    SKU:
    09-08011453
    Height Options:
    36 Inch
    Finish Options:
    Chrome-Plated
    Style Options:
    Curve Turn
    Product Type:
    Exhaust
    Make:
    Universal Items
    Material Options:
    Steel
    Diameter Options:
    6 To 5 Inch
    $188.99
    Qty in Cart: 0
    Price:
    $188.99
    Subtotal:
  • 7-5 X 84 Chrome Miter Exhaust Stack

    7-5 X 84 Chrome Miter Exhaust Stack

    LINCOLN CHROME

    $716.99
    7-5 OD X 84 Miter Exhaust Stack* High Quality Exhaust Stack* Miter Top Style* Plain End* Chrome Plated Finish* 84 Inch Length* 7 Inch Reduced To 5 Inch Outer Diameter* Sold Individually* Warranty On...
    09-08010755
    SKU:
    09-08010755
    Location:
    Made In USA
    Product Type:
    Exhaust
    Height Options:
    84 Inch
    Finish Options:
    Chrome-Plated
    Style Options:
    Miter Cut
    Make:
    Universal Items
    Material Options:
    Steel
    Diameter Options:
    7 To 5 Inch
    $716.99
    Qty in Cart: 0
    Price:
    $716.99
    Subtotal:
  • Lincoln Chrome 6 X 24 Inch Chrome Bull Hauler Exhaust Stack

    Lincoln Chrome 6 X 24 Inch Chrome Bull Hauler Exhaust Stack

    LINCOLN CHROME

    $277.99
    6 X 24 Inch Bull Hauler Exhaust Stack By Lincoln Chrome* High Quality Exhaust Stack* Bullhorn Top Style* Plain End* Chrome Plated Finish* 24 Inch Height* 6 Inch Inner Diameter* Sold Individually*...
    09-08010333
    SKU:
    09-08010333
    Finish Options:
    Chrome-Plated
    Location:
    Made In USA
    Diameter Options:
    6 Inch
    Product Type:
    Exhaust
    Make:
    Universal Items
    Material Options:
    Steel
    Style Options:
    Bullhorn Top Style
    Height Options:
    24 Inch
    $277.99
    Qty in Cart: 0
    Price:
    $277.99
    Subtotal:
  • 7-5 X 60 Inch Chrome Bull Hauler Exhaust Stack

    7-5 X 60 Inch Chrome Bull Hauler Exhaust Stack

    LINCOLN CHROME

    $614.99
    7-5 OD X 60 Inch Bull Hauler Exhaust Stack* High Quality Exhaust Stack* Bullhorn Top Style* Plain End* Chrome Plated Finish* 60 Inch Height* 7 Inch Reduced To 5 Inch Outer Diameter* Sold...
    09-08010963
    SKU:
    09-08010963
    Finish Options:
    Chrome-Plated
    Style Options:
    Bull Hauler Turn
    Location:
    Made In USA
    Product Type:
    Exhaust
    Make:
    Universal Items
    Diameter Options:
    7 To 5 Inch
    Height Options:
    60 Inch
    Material Options:
    Steel
    $614.99
    Qty in Cart: 0
    Price:
    $614.99
    Subtotal:
  • 5 X 68 Inch Chrome West Coast Turn Exhaust Stack

    5 X 68 Inch Chrome West Coast Turn Exhaust Stack

    LINCOLN CHROME

    $398.99
    5 ID X 68 Inch West Coast Turn Exhaust Stack* High Quality Exhaust Stack* West Coast Curved Top Style* Expanded And Slotted End* Chrome Plated Finish* 68 Inch Height* 5 Inch Inner Diameter* Sold...
    09-08010341
    SKU:
    09-08010341
    Diameter Options:
    5 Inch
    Location:
    Made In USA
    Product Type:
    Exhaust
    Finish Options:
    Chrome-Plated
    Style Options:
    West Coast Turn
    Height Options:
    68 Inch
    Make:
    Universal Items
    Material Options:
    Steel
    $398.99
    Qty in Cart: 0
    Price:
    $398.99
    Subtotal:
  • 6 X 72 Inch Chrome West Coast Turn Exhaust Stack

    6 X 72 Inch Chrome West Coast Turn Exhaust Stack

    LINCOLN CHROME

    $623.99
    6 OD X 72 Inch West Coast Turn Exhaust Stack* High Quality Exhaust Stack* West Coast Curved Top Style* Plain End* Chrome Plated Finish* 72 Inch Length* 6 Inch Outer Diameter* Sold Individually*...
    09-08010160
    SKU:
    09-08010160
    Style Options:
    West Coast Turn
    Height Options:
    72 Inch
    Finish Options:
    Chrome-Plated
    Location:
    Made In USA
    Diameter Options:
    6 Inch
    Product Type:
    Exhaust
    Make:
    Universal Items
    Material Options:
    Steel
    $623.99
    Qty in Cart: 0
    Price:
    $623.99
    Subtotal:
  • 2.75 X 2 Inch Aluminized Steel Turbo Adapter

    2.75 X 2 Inch Aluminized Steel Turbo Adapter

    BESTFIT TRUCK PARTS

    $39.26
    Aluminized Steel Turbo Adapter Use With V-Band Clamp* High Quality Turbo/Manifold Adapter* With 22 Degree Flare* Used With V-Band Clamp* Aluminum* 2.75 Inch Outer Diameter To A 3.21 Inch Flare* 2...
    09-0801003
    SKU:
    09-0801003
    Material Options:
    Aluminized Steel
    Product Type:
    Exhaust
    Make:
    Universal Items
    Diameter Options:
    2 3/4 Inch
    Style Options:
    Flanged
    $39.26
    Qty in Cart: 0
    Price:
    $39.26
    Subtotal:
  • 7 X 36 Inch Chrome Bull Hauler Exhaust Stack

    7 X 36 Inch Chrome Bull Hauler Exhaust Stack

    LINCOLN CHROME

    $429.99
    7 OD X 36 Inch Bull Hauler Exhaust Stack* High Quality Exhaust Stack* Bullhorn Top Style* Plain End* Chrome Plated Finish* 36 Inch Height* 7 Inch Outer Diameter* Sold Individually* Warranty On...
    09-08010255
    SKU:
    09-08010255
    Diameter Options:
    7 Inch
    Location:
    Made In USA
    Product Type:
    Exhaust
    Finish Options:
    Chrome-Plated
    Style Options:
    Bull Hauler Turn
    Height Options:
    36 Inch
    Make:
    Universal Items
    Material Options:
    Steel
    Ready To Ship:
    Yes
    $429.99
    Qty in Cart: 0
    Price:
    $429.99
    Subtotal:
  • 7-5 X 44 Inch Chrome Miter Exhaust Stack

    7-5 X 44 Inch Chrome Miter Exhaust Stack

    LINCOLN CHROME

    $389.99
    7-5 OD X 44 Inch Miter Exhaust Stack* High Quality Exhaust Stack* Miter Top Style* Plain End* Chrome Plated Finish* 44 Inch Height* 7 Inch Reduced To 5 Inch Outer Diameter* Sold Individually*...
    09-08010141
    SKU:
    09-08010141
    Location:
    Made In USA
    Product Type:
    Exhaust
    Finish Options:
    Chrome-Plated
    Style Options:
    Miter Cut
    Make:
    Universal Items
    Material Options:
    Steel
    Diameter Options:
    7 To 5 Inch
    Height Options:
    44 Inch
    $389.99
    Qty in Cart: 0
    Price:
    $389.99
    Subtotal:
  • Pilot Bearing Replaces 63052RSJ, PB63052RS

    Pilot Bearing Replaces 63052RSJ, PB63052RS

    AUTOMANN USA

    $17.81
    Nitrile Shields Pilot Bearing* High Quality Pilot Bearing* Nitrile Shields* 0.977 Inch Inner Diameter* 2.440 Inch Outer Diameter* 0.667 Inch Thick* Sold Individually* Warranty On Pilot Bearings...
    09-07050000
    SKU:
    09-07050000
    Diameter Options:
    2 1/4 Inch
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $17.81
    Qty in Cart: 0
    Price:
    $17.81
    Subtotal:
  • Single Check Valve Replaces Kn23040. N13526J

    Single Check Valve Replaces Kn23040. N13526J

    AUTOMANN USA

    $16.53
    2.32 X 0.75 Inch Single Check Valve* High Quality Single Check Valve* 3/4 Inch NPT Female Inlet* 3/4 Inch NPT Male Outlet* 2.320 Inch Length* Sold Individually* Warranty On Single Check Valves...
    09-07000002
    SKU:
    09-07000002
    Length Options:
    2 1/4 Inch
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    Material Options:
    Brass
    $16.53
    Qty in Cart: 0
    Price:
    $16.53
    Subtotal:
  • Pinion Seal Replaces 25624339, 88AXB1, A1805A261

    Pinion Seal Replaces 25624339, 88AXB1, A1805A261

    AUTOMANN USA

    $12.70
    4.010 Inch OD X 0.438 Inch Width Pinion Seal With 2.75 Inch Shaft Diameter* High Quality Pinion Seal* 2.750 Inch Shaft Diameter* 4.010 Inch Outer Diameter* 0.438 Inch Width* Sold Individually*...
    09-05210011
    SKU:
    09-05210011
    Diameter Options:
    4 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $12.70
    Qty in Cart: 0
    Price:
    $12.70
    Subtotal:
  • O-Ring Kit- 350 Piece

    O-Ring Kit- 350 Piece

    AFTERMARKET

    $80.99
    O-Ring Kit Replaces ATD-356* High Quality O-Ring Kit* Hnbr 350 Piece* Sold As Kit* Warranty On O-Ring Kits Against Defects In Workmanship & Material From Date Of Purchase* Cross Ref Number ATD-356**...
    09-07000004
    SKU:
    09-07000004
    Product Type:
    Engine Parts
    Make:
    Universal Items
    Position:
    Kit Full
    $80.99
    Qty in Cart: 0
    Price:
    $80.99
    Subtotal:
  • Differential Pinion Seal Replaces 475003N

    Differential Pinion Seal Replaces 475003N

    AUTOMANN USA

    $4.62
    3.63 Inch OD X 0.469 Inch Width Pinion Seal With 2.625 Inch Shaft Diameter* High Quality Pinion Seal* Differential* 2.625 Inch Shaft Diameter* 3.630 Inch Outer Diameter* 0.469 Inch Width* Sold...
    09-05210024
    SKU:
    09-05210024
    Diameter Options:
    3 1/2 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $4.62
    Qty in Cart: 0
    Price:
    $4.62
    Subtotal:
  • Differential Pinion Seal Replaces 64656, 475012N

    Differential Pinion Seal Replaces 64656, 475012N

    AUTOMANN USA

    $8.09
    4.008 Inch OD X 0.468 Inch Width Pinion Seal With 2.937 Inch Shaft Diameter* High Quality Pinion Seal* Differential* 2.937 Inch Shaft Diameter* 4.008 Inch Outer Diameter* 0.468 Inch Width* Sold...
    09-05210026
    SKU:
    09-05210026
    Diameter Options:
    4 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $8.09
    Qty in Cart: 0
    Price:
    $8.09
    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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