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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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  • Knoedler Extreme Low Rider Mid Back Seat W/ FAS Lumbar, Arms- Black Synthetic Leather

    Knoedler Extreme Low Rider Mid Back Seat W/ FAS Lumbar, Arms- Black Synthetic Leather

    KNOEDLER

    $2,170.99
    Black Synthetic Leather Extreme Low Rider Mid Back Seat W/ FAS Lumbar, ArmsRide in comfort and style with the Knoedler Extreme Low Rider Mid Back Seat, a high-performance seat designed for drivers...
    98SCL60MB0S01
    SKU:
    98SCL60MB0S01
    Degree Options:
    45
    Width Options:
    20 Inch
    Material Options:
    Synthetic Leather
    Color:
    Black
    Style Options:
    Mid Back
    Product Type:
    Seats
    Make:
    Universal Items
    $2,170.99
    Qty in Cart: 0
    Price:
    $2,170.99
    Subtotal:
  • Knoedler Low Rider Air Chief Wide Seat W/ FAS Lumbar, Arms- Black Synthetic Leather

    Knoedler Low Rider Air Chief Wide Seat W/ FAS Lumbar, Arms- Black Synthetic Leather

    KNOEDLER

    $1,580.99
    Black Synthetic Leather Low Rider Air Chief Wide Seat W/ FAS Lumbar, ArmsDrive in comfort and style with the Knoedler Low Rider Air Chief Wide Seat. The 23-inch wide cushion, mid-back seat, and...
    98LWL82MH0S01
    SKU:
    98LWL82MH0S01
    Product Type:
    Seats
    Color:
    Black
    Style Options:
    Mid Back
    Material Options:
    Synthetic Leather
    Width Options:
    23 Inch
    Degree Options:
    45
    Make:
    Universal Items
    $1,580.99
    Qty in Cart: 0
    Price:
    $1,580.99
    Subtotal:
  • Knoedler Air Chief Standard Base Mid Back Seat W/ FAS Lumbar, Arms, Headrest, Bellows- Black & Brown Synthetic Leather

    Knoedler Air Chief Standard Base Mid Back Seat W/ FAS Lumbar, Arms, Headrest, Bellows- Black & Brown Synthetic Leather

    KNOEDLER

    $1,876.99
    Black & Brown Synthetic Leather Air Chief Standard Base Mid Back Seat W/ FAS Lumbar, Arms, Headrest, BellowsLong-haul drivers can enjoy unmatched comfort with the Knoedler Air Chief Standard Base Mid...
    98CWL82MH0S12
    SKU:
    98CWL82MH0S12
    Product Type:
    Seats
    Style Options:
    Mid Back
    Material Options:
    Synthetic Leather
    Color:
    Black
    Width Options:
    23 Inch
    Make:
    Universal Items
    $1,876.99
    Qty in Cart: 0
    Price:
    $1,876.99
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  • V-Band Clamp For Cummins ISM, ISX 12, ISX 15 Engine Replaces 2871863

    V-Band Clamp For Cummins ISM, ISX 12, ISX 15 Engine Replaces 2871863

    AUTOMANN USA

    $32.14
    13.375 Inch V- Band ClampProtect your DPF muffler system on Cummins ISM, ISX 12, and ISX 15 engines with this high-quality stainless steel V-Band Clamp, replacing 2871863. The 12.5-inch body and 13...
    29-08060022
    SKU:
    29-08060022
    Length Options:
    12 1/2 Inch
    Material Options:
    Stainless Steel
    Style Options:
    Cummins
    Diameter Options:
    13 1/2 Inch
    Product Type:
    Exhaust
    Make:
    Universal Items
    $32.14
    Qty in Cart: 0
    Price:
    $32.14
    Subtotal:
  • Knoedler Chief Standard Base High Back Seat W/ 2 Lumbar Supports, Arms, Heat, Massage- Red & Black Synthetic Leather

    Knoedler Chief Standard Base High Back Seat W/ 2 Lumbar Supports, Arms, Heat, Massage- Red & Black Synthetic Leather

    KNOEDLER

    $2,996.99
    Red & Black Synthetic Leather Chief Standard Base High Back Seat W/ 2 Lumbar Supports, Arms, Heat, MassageElevate your cab interior with the Knoedler Chief Standard Base High Back Seat, designed for...
    98CHS82TB0S16
    SKU:
    98CHS82TB0S16
    Color:
    Black
    Product Type:
    Seats
    Degree Options:
    45
    Style Options:
    High Back
    Material Options:
    Synthetic Leather
    Height Options:
    20 Inch
    Make:
    Universal Items
    $2,996.99
    Qty in Cart: 0
    Price:
    $2,996.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    Knoedler Harrier Standard Base High Back Seat W/ Air Lumbar, Arms- Black Synthetic Leather

    Knoedler Harrier Standard Base High Back Seat W/ Air Lumbar, Arms- Black Synthetic Leather

    KNOEDLER

    Now: $933.79
    Was: $1,333.99
    Black Synthetic Leather Harrier Standard Base High Back Seat W/ Air Lumbar, ArmsExperience premium comfort and advanced ergonomics with the Knoedler Harrier Standard Base High Back Seat. This...
    941082TB0S01
    SKU:
    941082TB0S01
    Material Options:
    Synthetic Leather
    Degree Options:
    45
    Product Type:
    Seats
    Color:
    Black
    Style Options:
    High Back
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Now: $933.79
    Was: $1,333.99
    Qty in Cart: 0
    Price:
    Now: $933.79
    Was: $1,333.99
    Subtotal:
  • Hub Odometer Bracket Replaces GT-4065, STM6100065, 610-0065

    Hub Odometer Bracket Replaces GT-4065, STM6100065, 610-0065

    AUTOMANN USA

    $18.50
    Hub Odometer BracketEnhance the stability of your hub odometer assembly with this premium Hub Odometer Bracket. Featuring two legs with 0.375-inch mounting holes and a 0.5-inch top mounting hole, it...
    29-20200053
    SKU:
    29-20200053
    Width Options:
    1 1/2 Inch
    Product Type:
    Wheels
    Height Options:
    3 1/2 Inch
    Length Options:
    5 1/2 Inch
    Make:
    Universal Items
    $18.50
    Qty in Cart: 0
    Price:
    $18.50
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  • Power Steering Reservoir Replaces 583991410J, 91410J, FG91410J, ZFS91410J For Kenworth, Mack & Peterbilt

    Power Steering Reservoir Replaces 583991410J, 91410J, FG91410J, ZFS91410J For Kenworth, Mack & Peterbilt

    AFTERMARKET

    $480.99
    4 Quart Power Steering ReservoirEnhance your Kenworth, Mack, or Peterbilt truck's steering performance with this high-quality Power Steering Reservoir. The 4-quart reservoir features a fill cap, 4...
    29-07120017
    SKU:
    29-07120017
    Product Type:
    Engine Parts
    Make:
    Peterbilt
    Make:
    Kenworth
    Make:
    Mack
    $480.99
    Qty in Cart: 0
    Price:
    $480.99
    Subtotal:
  • 5 Inch Stainless Steel Door Chop Top Trim For Kenworth & Peterbilt

    5 Inch Stainless Steel Door Chop Top Trim For Kenworth & Peterbilt

    JML KUSTOMS

    $203.99
    5 Inch Door Chop Top TrimGive your Kenworth or Peterbilt a polished, professional upgrade with this 5 Inch Stainless Steel Door Chop Top Trim. Constructed from durable 304 stainless steel, this trim...
    29-09140016
    SKU:
    29-09140016
    Product Type:
    Exterior
    Material Options:
    Stainless Steel
    Height Options:
    5 Inch
    Make:
    Peterbilt
    Make:
    Kenworth
    $203.99
    Qty in Cart: 0
    Price:
    $203.99
    Subtotal:
  • V-Band Clamp For Cummins & PACCAR Engine Replaces 2871862, Q187681, P238308, AC300011

    V-Band Clamp For Cummins & PACCAR Engine Replaces 2871862, Q187681, P238308, AC300011

    AFTERMARKET

    $53.99
    11.90 Inch V-Band ClampKeep your Cummins or PACCAR engine running efficiently with this high-quality V-Band Clamp. With stainless steel construction, a 9.5-inch body, and 11.900-inch nominal...
    29-08060018
    SKU:
    29-08060018
    Diameter Options:
    11 1/2 Inch
    Length Options:
    9 1/2 Inch
    Style Options:
    Paccar
    Material Options:
    Stainless Steel
    Product Type:
    Exhaust
    Make:
    Universal Items
    $53.99
    Qty in Cart: 0
    Price:
    $53.99
    Subtotal:
  • Camshaft Position Sensor For Caterpillar C15 Engines Replaces 2016617

    Camshaft Position Sensor For Caterpillar C15 Engines Replaces 2016617

    AUTOMANN USA

    $147.99
    Caterpillar C15 Engine Camshaft Position Sensor- 2 PinMaximize engine efficiency and performance with this high-quality Camshaft Position Sensor for CAT C15 engines, replacing 2016617. Featuring a...
    29-07100070
    SKU:
    29-07100070
    Style Options:
    Caterpillar
    Length Options:
    2 1/2 Inch
    Product Type:
    Engine Parts
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $147.99
    Qty in Cart: 0
    Price:
    $147.99
    Subtotal:
  • Oil Filler Cap For PACCAR MX13 Engine Replaces 1785085, 1785085PE

    Oil Filler Cap For PACCAR MX13 Engine Replaces 1785085, 1785085PE

    AUTOMANN USA

    $19.04
    PACCAR MX13 Engine Oil Filler CapMaintain your PACCAR MX13 engine with this high-quality replacement Oil Filler Cap, designed to replace 1785085 and 1785085PE. Made from durable rubber with a...
    29-072000014
    SKU:
    29-072000014
    Material Options:
    Rubber
    Product Type:
    Engine Parts
    Color:
    Red
    Style Options:
    Paccar
    Diameter Options:
    1 1/2 Inch
    Make:
    Universal Items
    $19.04
    Qty in Cart: 0
    Price:
    $19.04
    Subtotal:
  • Engine Oil Filter Screw Cap For PACCAR MX13 Engine Replaces 1876740, 1876740, 1936324, 1936324, 1948922, 2011888

    Engine Oil Filter Screw Cap For PACCAR MX13 Engine Replaces 1876740, 1876740, 1936324, 1936324, 1948922, 2011888

    AUTOMANN USA

    $69.99
    PACCAR MX13 Engine Oil Filter Screw CapEnsure your PACCAR MX13 engine continues to operate efficiently with this replacement Engine Oil Filter Screw Cap. Its centrifugal screw-on design with included...
    29-072000015
    SKU:
    29-072000015
    Style Options:
    Paccar
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $69.99
    Qty in Cart: 0
    Price:
    $69.99
    Subtotal:
  • Air Inlet Manifold Pressure Sensor Replaces 1619929, 1946724, 1298374

    Air Inlet Manifold Pressure Sensor Replaces 1619929, 1946724, 1298374

    AUTOMANN USA

    $115.99
    16.50 Inch Air Inlet Manifold Pressure Sensor- 3 PinThis high-quality Air Inlet Manifold Pressure Sensor replacement for 1619929, 1946724, and 1298374 ensures accurate air pressure readings for...
    29-07100066
    SKU:
    29-07100066
    Style Options:
    Caterpillar
    Length Options:
    16 1/2 Inch
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $115.99
    Qty in Cart: 0
    Price:
    $115.99
    Subtotal:
  • Fuel and Water Separator Vent Cap Replaces 240023, 240023DAV, DVC240023DAV, 1694745C91

    Fuel and Water Separator Vent Cap Replaces 240023, 240023DAV, DVC240023DAV, 1694745C91

    AUTOMANN USA

    $9.99
    Fuel and Water Separator Vent CapSafeguard your truck's fuel system with this Fuel and Water Separator Vent Cap, designed to replace 240023, 240023DAV, DVC240023DAV, and 1694745C91. Cap only, sold...
    29-071200034
    SKU:
    29-071200034
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $9.99
    Qty in Cart: 0
    Price:
    $9.99
    Subtotal:
  • Intake Manifold Air Temp Sensor For Cummins ISX, QSX15 Engine Replaces 4921473, 3417142

    Intake Manifold Air Temp Sensor For Cummins ISX, QSX15 Engine Replaces 4921473, 3417142

    AUTOMANN USA

    $90.99
    Cummins ISX, QSX15 Engine Intake Manifold Air Temp Sensor- 4 PinThis Intake Manifold Air Temp Sensor provides precise and reliable air temperature monitoring for Cummins ISX and QSX15 engines,...
    29-07100062
    SKU:
    29-07100062
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Length Options:
    1 3/4 Inch
    Make:
    Universal Items
    $90.99
    Qty in Cart: 0
    Price:
    $90.99
    Subtotal:
  • Coolant Temp Sensor For Caterpillar Engines Replaces 1022240

    Coolant Temp Sensor For Caterpillar Engines Replaces 1022240

    AUTOMANN USA

    $115.99
    Caterpillar Engine Coolant Temp Sensor- 3 PinThis Coolant Temp Sensor for Caterpillar engines replaces 1022240 and delivers precise temperature monitoring to optimize engine performance. Featuring a...
    29-07100071
    SKU:
    29-07100071
    Style Options:
    Caterpillar
    Diameter Options:
    1 Inch
    Length Options:
    3 Inch
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $115.99
    Qty in Cart: 0
    Price:
    $115.99
    Subtotal:
  • Cam Crank Timing Position Sensor For CAT C11, C13, C15 Engine Replaces 2016615

    Cam Crank Timing Position Sensor For CAT C11, C13, C15 Engine Replaces 2016615

    AUTOMANN USA

    $121.99
    Caterpillar Engine Cam Crank Timing Position Sensor- 2 PinKeep your CAT C11, C13, and C15 engines running at peak efficiency with this high-quality Cam Crank Timing Position Sensor, replacing 2016615...
    29-07100072
    SKU:
    29-07100072
    Length Options:
    3 Inch
    Product Type:
    Engine Parts
    Style Options:
    Caterpillar
    Make:
    Universal Items
    $121.99
    Qty in Cart: 0
    Price:
    $121.99
    Subtotal:
  • GP Speed Sensor For Caterpillar C12 Engine Replaces 1918304, 191-8304

    GP Speed Sensor For Caterpillar C12 Engine Replaces 1918304, 191-8304

    AUTOMANN USA

    $101.99
    Caterpillar C12 Engine GP Speed Sensor- 2 PinOptimize your Caterpillar C12 engine performance with this high-quality GP Speed Sensor, replacing 1918304 and 191-8304. It features a 2-pin...
    29-07100058
    SKU:
    29-07100058
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $101.99
    Qty in Cart: 0
    Price:
    $101.99
    Subtotal:
  • Air Inlet Manifold Pressure Sensor For CAT C11, C13, C15 Engine Replaces 2393478

    Air Inlet Manifold Pressure Sensor For CAT C11, C13, C15 Engine Replaces 2393478

    AUTOMANN USA

    $188.99
    Air Inlet Manifold Pressure Sensor- 3 PinEnsure smooth and efficient engine performance with this Air Inlet Manifold Pressure Sensor for CAT C11, C13, and C15 engines, replacing 2393478. Featuring a...
    29-07100067
    SKU:
    29-07100067
    Product Type:
    Engine Parts
    Length Options:
    2 Inch
    Style Options:
    Caterpillar
    Make:
    Universal Items
    $188.99
    Qty in Cart: 0
    Price:
    $188.99
    Subtotal:
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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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