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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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  • Mirror Glass Kit For Single Vision, Non- Heated Replaces 613466

    Mirror Glass Kit For Single Vision, Non- Heated Replaces 613466

    AUTOMANN USA

    $34.85
    Replacement Mirror Glass Kit For Single Vision, Non- Heated* High Quality Mirror Glass* Replacement Glass For Single Vision Universal Performance* Flat Glass* Non-Heated* No CB Antenna* No Temp...
    09-09140014
    SKU:
    09-09140014
    Height Options:
    19 Inch
    Product Type:
    Exterior
    Style Options:
    Flat
    Width Options:
    8 Inch
    Material Options:
    Glass
    Make:
    Universal Items
    $34.85
    Qty in Cart: 0
    Price:
    $34.85
    Subtotal:
  • Flat Mirror Glass For Dual Vision- Heated Replaces 613495

    Flat Mirror Glass For Dual Vision- Heated Replaces 613495

    AFTERMARKET

    $49.47
    Replacement Flat Mirror Glass For Dual Vision- Heated* High Quality Replacement Top Flat Glass Mirror* Top Glass Only* For Dual Vision Universal Performance* Heated* No Antenna* No Temp Sensor* For...
    09-09140033
    SKU:
    09-09140033
    Style Options:
    Dual Vision
    Type Options:
    Heated
    Product Type:
    Exterior
    Make:
    Universal Items
    $49.47
    Qty in Cart: 0
    Price:
    $49.47
    Subtotal:
  • 3 ID X 18 Inch 409 Stainless Steel Flex Tubing

    3 ID X 18 Inch 409 Stainless Steel Flex Tubing

    AUTOMANN USA

    $41.37
    3 Inch ID 409 Stainless Steel Drop Flex Tubing Replaces 89613K* High Quality Flex Tubing* 409 Stainless Steel* Dimensions:  - 3.00 Inch I.D.  - 18.00 Inch Length* Sold Individually* Warranty On Flex...
    09-08040002
    SKU:
    09-08040002
    Material Options:
    Stainless Steel
    Product Type:
    Exhaust
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    $41.37
    Qty in Cart: 0
    Price:
    $41.37
    Subtotal:
  • 5 ID X 24 Inch Galvanized Steel Flex Tubing

    5 ID X 24 Inch Galvanized Steel Flex Tubing

    AUTOMANN USA

    $37.50
    5 Inch ID Galvanized Steel Drop Flex Tubing Replaces G15524, J024837* High Quality Flex Tubing* Galvanized Steel* Dimensions:  - 5 Inch I.D.  - 24 Inch Length* Sold Individually* Warranty On Flex...
    09-08010065
    SKU:
    09-08010065
    Material Options:
    Stainless Steel
    Product Type:
    Exhaust
    Truck Class:
    Heavy Duty
    Finish Options:
    Galvanized
    Make:
    Universal Items
    $37.50
    Qty in Cart: 0
    Price:
    $37.50
    Subtotal:
  • 4 ID Inch X 25 Ft 304 Stainless Steel Flex Tubing

    4 ID Inch X 25 Ft 304 Stainless Steel Flex Tubing

    AUTOMANN USA

    $798.99
    4 Inch ID 304 Stainless Steel Drop Flex Tubing Replaces SF4300* High Quality Tubing* 304 Stainless Steel* Dimensions:  - 4 Inch Diameter  - 25 Ft Length* Flexible* Sold Individually* Warranty On...
    09-08010056
    SKU:
    09-08010056
    Material Options:
    Stainless Steel
    Product Type:
    Exhaust
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    $798.99
    Qty in Cart: 0
    Price:
    $798.99
    Subtotal:
  • 3.5 ID X 12 Inch 409 Stainless Steel Flex Tubing

    3.5 ID X 12 Inch 409 Stainless Steel Flex Tubing

    AUTOMANN USA

    $31.03
    3.5 Inch ID 409 Stainless Steel Drop Flex Tubing Replaces 89616K* High Quality Flex Tubing* 409 Stainless Steel* Dimensions:  - 3.5 Inch I.D.  - 12 Inch Length* Sold Individually* Warranty On Flex...
    09-08010066
    SKU:
    09-08010066
    Product Type:
    Exhaust
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $31.03
    Qty in Cart: 0
    Price:
    $31.03
    Subtotal:
  • 6 Inch Stainless Steel Flat U Bolt Saddle Clamp

    6 Inch Stainless Steel Flat U Bolt Saddle Clamp

    AFTERMARKET

    $48.84
    Heavy Duty Exhaust Clamp Flat U-Bolt* High Quality Saddle Clamp* Stainless Steel * Diameter- 6 Inch* Flat U-Bolt* Made In USA* Sold Individually* Warranty On Saddle Clamps Against Defects In...
    09-08000008
    SKU:
    09-08000008
    Product Type:
    Exhaust
    Diameter Options:
    6 Inch
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $48.84
    Qty in Cart: 0
    Price:
    $48.84
    Subtotal:
  • 4 Inch Stainless Steel Flat U Bolt Saddle Clamp

    4 Inch Stainless Steel Flat U Bolt Saddle Clamp

    AUTOMANN USA

    $28.44
    Heavy Duty Exhaust Clamp Flat U-BoltThis durable clamp delivers secure exhaust system mounting with a flat U-bolt design and guillotine saddles for maximum grip.* High Quality Saddle Clamp* Stainless...
    09-08000007
    SKU:
    09-08000007
    Material Options:
    Stainless Steel
    Product Type:
    Exhaust
    Diameter Options:
    4 Inch
    Make:
    Universal Items
    $28.44
    Qty in Cart: 0
    Price:
    $28.44
    Subtotal:
  • 15 Feet 7-Way Green ABS Electric Cable Assembly W/ 12 & 48 inch Leads

    15 Feet 7-Way Green ABS Electric Cable Assembly W/ 12 & 48 inch Leads

    AFTERMARKET

    $180.99
    Green ABS Electric Cable With 7 Way Nylon Sealed Plugs Replaces 304921, 4DA17, 7ATG542MG, And 590163* High Quality Electric Cable* Made Of ABS* Green* 15 Foot Assembly Length* 12 Inch And 48 Inch...
    09-05500019
    SKU:
    09-05500019
    Material Options:
    Plastic/Poly
    Product Type:
    Air, Electrical, & Safety
    Truck Class:
    Universal
    Make:
    Universal Items
    $180.99
    Qty in Cart: 0
    Price:
    $180.99
    Subtotal:
  • 12 Foot Red & Blue Coiled Air Hose Set With 6 Inch Leads

    12 Foot Red & Blue Coiled Air Hose Set With 6 Inch Leads

    AUTOMANN USA

    $77.99
    12 Foot Red & Blue Air Coils With 6 Inch Leads* High Quality Air Hose Set * Made Of Nylon* Coiled, 1/2 Inch O.D. Reinforced Nylon Tubing* 12 Feet Long * Excellent Coil Memory And Durability*...
    09-055206
    SKU:
    09-055206
    Truck Class:
    Heavy Duty
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $77.99
    Qty in Cart: 0
    Price:
    $77.99
    Subtotal:
  • 15 Feet 7-Way Green ABS Electric Cable Assembly W/ 12 & 72 inch Leads

    15 Feet 7-Way Green ABS Electric Cable Assembly W/ 12 & 72 inch Leads

    AFTERMARKET

    $197.99
    Green ABS Electric Cable With 7 Way Nylon Sealed Plugs Replaces 30-4721, 304721, 4D016, And 7ATG512MW* High Quality Electric Cable* Made Of ABS* Green * 15 Foot Assembly Length* 12 Inch And 72 Inch...
    09-05500018
    SKU:
    09-05500018
    Material Options:
    Plastic/Poly
    Product Type:
    Air, Electrical, & Safety
    Truck Class:
    Universal
    Make:
    Universal Items
    $197.99
    Qty in Cart: 0
    Price:
    $197.99
    Subtotal:
  • Type 16 Service Chamber With 8.25 Inch Stem Length - Brake Chamber

    Type 16 Service Chamber With 8.25 Inch Stem Length - Brake Chamber

    AUTOMANN USA

    $61.99
    Single Brake Chamber Type 16 - 6.50 Inch Diameter* High Quality Service Brake Chamber* Stroke Length 2.50 Inch* Rod Threaded Full Length 8.25 Inch x .500 Inch -20 TPI* Clevis Included* Sold...
    09-051701
    SKU:
    09-051701
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $61.99
    Qty in Cart: 0
    Price:
    $61.99
    Subtotal:
  • Brake Drum 15 X 5 Inch Replaces 3754, 3754X, 61951, 61951B

    Brake Drum 15 X 5 Inch Replaces 3754, 3754X, 61951, 61951B

    AUTOMANN USA

    $321.99
    10 Hole Brake Drum With 15 Inch Brake Surface & 9.52 Inch Overall Depth* High Quality Brake Drum* Dimensions:- Brake Surface Diameter - 15.000 Inch - Overall Depth- 9.520 Inch - Brake Surface Flat -...
    09-051700000
    SKU:
    09-051700000
    Material Options:
    Steel
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Diameter Options:
    15 Inch
    Make:
    Universal Items
    $321.99
    Qty in Cart: 0
    Price:
    $321.99
    Subtotal:
  • 33 MM X 4 3/4 Inch Chrome Spike Thread On Lug Nut Covers - 60 Pack

    33 MM X 4 3/4 Inch Chrome Spike Thread On Lug Nut Covers - 60 Pack

    AFTERMARKET

    $157.99
    Thread On Chrome Plastic 33 MM Lug Nut Cover With Hex Base & Spiked Top* High Quality Lug Nut Cover* Chrome-Plated Plastic * Dimensions:  - 33 MM  - 4 3/4 Inch Height * Thread-On Mounting* Spike Top...
    09-05060038
    SKU:
    09-05060038
    Truck Class:
    Universal
    Finish Options:
    Chrome-Plated
    Product Type:
    Wheels
    Make:
    Universal Items
    $157.99
    Qty in Cart: 0
    Price:
    $157.99
    Subtotal:
  • 96 Inch Slider Air Hose Assembly, 3/8 Inch ID

    96 Inch Slider Air Hose Assembly, 3/8 Inch ID

    AFTERMARKET

    $29.99
    96 Inch Slider Air Brake Hose Replaces 16SL9662, 15SL9662, 457096* High Quality Slider Hose Assembly* Rubber* 3/8 Inch I.D.* 96 Inch Overall Length * With Compression Bulkhead Fittings For 3/8 Inch...
    09-05040067
    SKU:
    09-05040067
    Product Type:
    Air, Electrical, & Safety
    Truck Class:
    Universal
    Material Options:
    Rubber
    Make:
    Universal Items
    $29.99
    Qty in Cart: 0
    Price:
    $29.99
    Subtotal:
  • Hydraulic Hose Fitting JIC 37 Female 90, Thread 1 ID X 1-5/16 Inch- 12

    Hydraulic Hose Fitting JIC 37 Female 90, Thread 1 ID X 1-5/16 Inch- 12

    AFTERMARKET

    $99.99
    JIC 37 Female 90 Degree Hydraulic Hose Fitting Replaces 14440-1616, 144401616, B2-JCFX90L-1616, B2JCFX90L1616* High Quality Hydraulic Hose Fitting* JIC Female * 37 Degree Flare-SAE J514 Thread Type*...
    09-02500240
    SKU:
    09-02500240
    Diameter Options:
    1 Inch
    Product Type:
    Cargo Control
    Style Options:
    Elbow
    Degree Options:
    90
    Make:
    Universal Items
    $99.99
    Qty in Cart: 0
    Price:
    $99.99
    Subtotal:
  • Uni- Crimp Fitting SAE 45 Female 90 Thread 1/2 ID X 3/4 Inch - 16

    Uni- Crimp Fitting SAE 45 Female 90 Thread 1/2 ID X 3/4 Inch - 16

    AFTERMARKET

    $48.18
    Uni- Crimp Fitting SAE 45 Female 90 Thread* High Quality Hose Fitting* SAE 45 Female * 90 Degree Elbow* Uni-Crimp* Overall Length: 2.70 Inches* Hose End: 1/2 Inch Inner Diameter* Female Pipe End: 3/4...
    09-02500157
    SKU:
    09-02500157
    Product Type:
    Cargo Control
    Style Options:
    Elbow
    Degree Options:
    90
    Diameter Options:
    1/2 Inch
    Make:
    Universal Items
    $48.18
    Qty in Cart: 0
    Price:
    $48.18
    Subtotal:
  • Hydraulic Hose Fitting JIC 37 Female 90 Thread 3/4 ID X 1-1/16 Inch-12

    Hydraulic Hose Fitting JIC 37 Female 90 Thread 3/4 ID X 1-1/16 Inch-12

    AFTERMARKET

    $74.99
    90 Degree JIC 37 FemaleHydraulic Hose Fitting Replaces 14440-1212, 144401212, B2-JCFX90L-1212, B2JCFX90L1212* High Quality Hydraulic Hose Fitting* JIC Female * 37 Degree Flare-SAE J514 Thread Type*...
    09-02500215
    SKU:
    09-02500215
    Diameter Options:
    3/4 Inch
    Product Type:
    Cargo Control
    Style Options:
    Elbow
    Degree Options:
    90
    Make:
    Universal Items
    $74.99
    Qty in Cart: 0
    Price:
    $74.99
    Subtotal:
  • Hydraulic Hose Fitting JIC 37 Female 5/8 ID X 7/8 Inch - 14

    Hydraulic Hose Fitting JIC 37 Female 5/8 ID X 7/8 Inch - 14

    AFTERMARKET

    $52.99
    Hydraulic Hose Fitting JIC 37 Female 90* High Quality Hose Fitting* Dimensions:  - 5/8 Inch Hose ID  - 3.52 Inch Length  - 7/8 Inch-14* Hydraulic* Female * 90 Degree * Made In USA* Sold Individually*...
    09-02500105
    SKU:
    09-02500105
    Length Options:
    3 1/2 Inch
    Product Type:
    Cargo Control
    Degree Options:
    90
    Diameter Options:
    5/8 Inch
    Make:
    Universal Items
    $52.99
    Qty in Cart: 0
    Price:
    $52.99
    Subtotal:
  • Uni-Crimp Hose Fitting, JIC 37 Female, 5/8 ID X 7/8 Inch - 14 X 3.920 Inch

    Uni-Crimp Hose Fitting, JIC 37 Female, 5/8 ID X 7/8 Inch - 14 X 3.920 Inch

    AUTOMANN USA

    $28.91
    45 Degree Elbow Hydraulic Coupling / Adapter* High Quality Uni-Crimp Hose Fitting* Dimensions:  - Hose I.D.- 5/8 Inch  - A/F- 1.062 Inch  - Thread- 7/8 Inch-14* Sold Individually* Warranty On...
    09-02500192
    SKU:
    09-02500192
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $28.91
    Qty in Cart: 0
    Price:
    $28.91
    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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