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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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  • Conservator Steer Axle Seal Replaces 35058, MER0136, MER0236

    Conservator Steer Axle Seal Replaces 35058, MER0136, MER0236

    AFTERMARKET

    $32.90
    Steer Axle Conservator SealProtect your steer axle and maintain smooth steering with the Conservator Steer Axle Seal, a high-quality replacement for 35058, MER0136, and MER0236. Featuring an HNBR...
    29-20200060
    SKU:
    29-20200060
    Diameter Options:
    3 1/2 Inch
    Product Type:
    Wheels
    Width Options:
    9 1/4 Inch
    Make:
    Universal Items
    $32.90
    Qty in Cart: 0
    Price:
    $32.90
    Subtotal:
  • Black Poly Molded Coolant Hose Replaces 2869165

    Black Poly Molded Coolant Hose Replaces 2869165

    AFTERMARKET

    $65.99
    1 X 28 Inch Molded Coolant Hose For Cummins ISX EngineExtend the life of your Cummins ISX engine with this durable black molded coolant hose, a direct replacement for 2869165. The molded silicone...
    29-070200032
    SKU:
    29-070200032
    Diameter Options:
    1 Inch
    Style Options:
    Cummins
    Color:
    Black
    Length Options:
    28 Inch
    Product Type:
    Engine Parts
    Material Options:
    Silicone
    Make:
    Universal Items
    $65.99
    Qty in Cart: 0
    Price:
    $65.99
    Subtotal:
  • Pad Mount Alternator Replaces 8600314

    Pad Mount Alternator Replaces 8600314

    AFTERMARKET

    $498.99
    28SI Type AlternatorEquip your truck with this reliable pad mount alternator, engineered for replacement of 8600314. With a 28 SI rating and 200-amp output, it delivers consistent electricity to all...
    29-07090003
    SKU:
    29-07090003
    Product Type:
    Engine Parts
    Style Options:
    Pad Mount
    Make:
    Universal Items
    $498.99
    Qty in Cart: 0
    Price:
    $498.99
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  • Air Electric Paddle Toggle Valve Replaces K2953621, 401157, 918309, DV32001A, 032225 For Kenworth, Peterbilt & Volvo

    Air Electric Paddle Toggle Valve Replaces K2953621, 401157, 918309, DV32001A, 032225 For Kenworth, Peterbilt & Volvo

    AUTOMANN USA

    $34.61
    Air Electric Paddle Toggle ValveKeep your truck's air system functioning at peak performance with the Air Electric Paddle Toggle Valve. Compatible with Kenworth, Peterbilt, and Volvo vehicles, this...
    29-16190301
    SKU:
    29-16190301
    Product Type:
    Interior
    Make:
    Kenworth
    Make:
    Peterbilt
    Make:
    Volvo
    $34.61
    Qty in Cart: 0
    Price:
    $34.61
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  • Air Disc Brake Chamber Replaces SC20D, 5396SC20D

    Air Disc Brake Chamber Replaces SC20D, 5396SC20D

    AFTERMARKET

    $111.99
    Type 20 Air Disc Brake CamberEnsure reliable stopping power for your heavy-duty truck with this high-quality Air Disc Brake Chamber. Engineered as a Type 20 chamber, it features an M16 x 1.5 bolt...
    29-051700042
    SKU:
    29-051700042
    Height Options:
    4 1/2 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $111.99
    Qty in Cart: 0
    Price:
    $111.99
    Subtotal:
  • 1.937 X 3.937 Inch Red Poly Air Intake Hose For Cummins ISX

    1.937 X 3.937 Inch Red Poly Air Intake Hose For Cummins ISX

    AFTERMARKET

    $41.98
    Hot Side Air Intake Hose 1.937 X 3.937 Inch Replaces 3682842, 4919970, 4952644Keep your Cummins ISX EGR system performing at its best with this premium red poly air intake hose. Constructed from...
    29-07110010
    SKU:
    29-07110010
    Material Options:
    Silicone
    Length Options:
    4 Inch
    Product Type:
    Engine Parts
    Diameter Options:
    2 Inch
    Style Options:
    Cummins
    Make:
    Universal Items
    $41.98
    Qty in Cart: 0
    Price:
    $41.98
    Subtotal:
  • MV3 Type Dash Control Module With 1/4 Inch NPT Ports

    MV3 Type Dash Control Module With 1/4 Inch NPT Ports

    AUTOMANN USA

    $144.99
    Dash Control Module With 1/4 Inch NPT PortsDepend on the MV3 Type Dash Control Module for consistent, accurate air brake operation in your commercial truck. Featuring five 1/4-inch NPT ports, it...
    29-051700034
    SKU:
    29-051700034
    Product Type:
    Interior
    Make:
    Universal Items
    $144.99
    Qty in Cart: 0
    Price:
    $144.99
    Subtotal:
  • Dual Circuit Foot Valve Replaces 065313, 800583, 65313X 20QE3296M, R955800629N

    Dual Circuit Foot Valve Replaces 065313, 800583, 65313X 20QE3296M, R955800629N

    AUTOMANN USA

    $96.99
    E8P Type Dual Circuit Foot ValveThe Dual Circuit Foot Valve is a professional-grade air brake solution, delivering precise control for E8 dual-circuit systems. With multiple delivery and supply...
    29-051700035
    SKU:
    29-051700035
    Product Type:
    Interior
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $96.99
    Qty in Cart: 0
    Price:
    $96.99
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  • On Sale
    Limited Quantity Available
    Pressure Protection Valve Replaces A6814290844, 223-365

    Pressure Protection Valve Replaces A6814290844, 223-365

    AFTERMARKET

    Now: $28.73
    Was: $41.04
    3/8 Inch NPT Pressure Protection ValveSafeguard your truck's pneumatic system with this precision-engineered Pressure Protection Valve, providing reliable pressure control at 65 PSI opening and 55...
    29-05040001
    SKU:
    29-05040001
    Rating:
    65 PSI
    Product Type:
    Exhaust
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Now: $28.73
    Was: $41.04
    Qty in Cart: 0
    Price:
    Now: $28.73
    Was: $41.04
    Subtotal:
  • Coalescing Dryer Cartridge Replaces TDAR950068, R950068, 85110799

    Coalescing Dryer Cartridge Replaces TDAR950068, R950068, 85110799

    AUTOMANN USA

    $48.58
    Wabco Type Coalescing Dryer CartridgeKeep your truck's air system running at peak efficiency with this durable Coalescing Dryer Cartridge. Specifically designed for Wabco SS1200, SS1200P, and SS1200...
    29-051700036
    SKU:
    29-051700036
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $48.58
    Qty in Cart: 0
    Price:
    $48.58
    Subtotal:
  • Spring Brake Valve Replaces 51301

    Spring Brake Valve Replaces 51301

    AUTOMANN USA

    $56.99
    TEV Type Spring Brake ValveRely on consistent braking power with this high-performance TEV Type Spring Brake Valve, designed for superior air system control. Featuring two 1/4-inch, one 3/4-inch, and...
    29-051700033
    SKU:
    29-051700033
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $56.99
    Qty in Cart: 0
    Price:
    $56.99
    Subtotal:
  • Panel Mount Flipper Control Valve Replaces 229617, 229635, 229635N, 228729, 14651, 233699R91, 308814651, KN20001, R955229635N, 110167, 216002

    Panel Mount Flipper Control Valve Replaces 229617, 229635, 229635N, 228729, 14651, 233699R91, 308814651, KN20001, R955229635N, 110167, 216002

    AUTOMANN USA

    $9.18
    TW1 Type Control ValveAchieve dependable braking control with the Panel Mount Flipper Control Valve, a high-quality replacement for multiple OEM part numbers. With a 2.50-inch height, panel mount...
    29-051402
    SKU:
    29-051402
    Height Options:
    2 1/2 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $9.18
    Qty in Cart: 0
    Price:
    $9.18
    Subtotal:
  • 33MM Chrome Plastic Axle Cover Kit For Hub Pilot Wheels

    33MM Chrome Plastic Axle Cover Kit For Hub Pilot Wheels

    TRUX ACCESSORIES

    $295.99
    Axle Cover Kit For Hub Pilot Wheels* High Quality Complete Axle Cover Kit* Made Of Chrome-Plated Plastic* Push On Lug Nut Covers* Kit Includes Following: - (2) Front Axle Covers With Removable...
    09-2005205
    SKU:
    09-2005205
    Material Options:
    Plastic/Poly
    Finish Options:
    Chrome-Plated
    Product Type:
    Wheels
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $295.99
    Qty in Cart: 0
    Price:
    $295.99
    Subtotal:
  • 12V Purge Valve Assembly Replaces 109686, 5004341, 800405, R9555004341X, R9555005893N, 800405

    12V Purge Valve Assembly Replaces 109686, 5004341, 800405, R9555004341X, R9555005893N, 800405

    AUTOMANN USA

    $41.03
    AD9 Type Purge Valve AssemblyReplace your worn or faulty purge valve with this 12V Purge Valve Assembly, engineered for AD9 air dryers. The soft seat design provides superior sealing, while the 12V,...
    29-051700032
    SKU:
    29-051700032
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $41.03
    Qty in Cart: 0
    Price:
    $41.03
    Subtotal:
  • Spring Brake Valve With Anti- Compounding Replaces 65437, 109615, R95565437N, 034035

    Spring Brake Valve With Anti- Compounding Replaces 65437, 109615, R95565437N, 034035

    AUTOMANN USA

    $79.99
    SR5 Type Spring Brake ValveExperience superior air brake control with the Spring Brake Valve with Anti-Compounding, a high-quality SR5 type valve engineered for reliability and longevity. Its...
    29-051700029
    SKU:
    29-051700029
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $79.99
    Qty in Cart: 0
    Price:
    $79.99
    Subtotal:
  • 10 X 11.50 X 4.50 Inch Standard Sand Shoe For Landing Gear

    10 X 11.50 X 4.50 Inch Standard Sand Shoe For Landing Gear

    AUTOMANN USA

    $34.08
    Standard Sand Shoe For Landing Gear Replaces E925Improve landing gear reliability with the 10 x 11.50 x 4.50 Inch Standard Sand Shoe. Made for trucks using 8.77" length x 1.9" O.D. pins, this durable...
    19-055600087
    SKU:
    19-055600087
    Length Options:
    11 1/2 Inch
    Product Type:
    Trailer
    Width Options:
    10 Inch
    Height Options:
    4 1/2 Inch
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $34.08
    Qty in Cart: 0
    Price:
    $34.08
    Subtotal:
  • 12V Motor Reversing Solenoid Replaces CHS24450

    12V Motor Reversing Solenoid Replaces CHS24450

    AUTOMANN USA

    $64.99
    12V Motor Reversing SolenoidDelivering reliable performance and precise motor control, the 12V Motor Reversing Solenoid is engineered for tough truck applications. With a 150-amp rating, four 5/16...
    09-162000011
    SKU:
    09-162000011
    Material Options:
    Plastic/Poly
    Product Type:
    Cargo Control
    Width Options:
    4 1/8 Inch
    Make:
    Universal Items
    $64.99
    Qty in Cart: 0
    Price:
    $64.99
    Subtotal:
  • Camshaft Repair Kit Replaces E3993B, KIT8042, CQ67387, 43-7048

    Camshaft Repair Kit Replaces E3993B, KIT8042, CQ67387, 43-7048

    AUTOMANN USA

    $19.48
    Camshaft Repair Kit For Meritor 15in and 16-1/2in Q & Q-Plus Type Drive AxlesExperience reliable performance and extended service life with this Camshaft Repair Kit, crafted for Meritor 15-inch and...
    29-051700027
    SKU:
    29-051700027
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $19.48
    Qty in Cart: 0
    Price:
    $19.48
    Subtotal:
  • 8.625 Inch Diameter Stainless Steel Front Hubcap With 7/16 Inch Lip

    8.625 Inch Diameter Stainless Steel Front Hubcap With 7/16 Inch Lip

    TRUX ACCESSORIES

    $19.97
    304 Stainless Steel Front Hubcap With 7/16 Inch Lip* High Quality Hubcap* 304 Stainless Steel* 6 Uneven Notches And Clips* 8-5/8 Inch Diameter* 7/16 Inch Lip* Front Universal* Sold Individually*...
    09-200600001
    SKU:
    09-200600001
    Diameter Options:
    8 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Position:
    Front
    Product Type:
    Wheels
    Make:
    Universal Items
    $19.97
    Qty in Cart: 0
    Price:
    $19.97
    Subtotal:
  • Split Plastic Loom - 1/4In X 25Ft

    Split Plastic Loom - 1/4In X 25Ft

    TRUX ACCESSORIES

    $0.98
    1/4In X 25Ft Split Plastic Loom1/4" Split Plastic Loom. Comes in Package of 25 Feet.* High Quality Split Loom* 100 Foot Spool* Plastic* Blue* 1/4 Inch Thick* Sold Individually* Warranty On Split...
    09-16040117
    SKU:
    09-16040117
    Product Type:
    Lighting
    Diameter Options:
    1/4 Inch
    Material Options:
    Plastic/Poly
    Color:
    Blue
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $0.98
    Qty in Cart: 0
    Price:
    $0.98
    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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