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Kenworth T300-T450 Charge Air Coolers

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  • BESTfit Charge Air Cooler 37 X 19 Inch For Kenworth T370 & Peterbilt 337, 348, 382

    BESTfit Charge Air Cooler 37 X 19 Inch For Kenworth T370 & Peterbilt 337, 348, 382

    BESTFIT TRUCK PARTS

    $815.99 - $968.99
    Is your engine overheating? 4 State Trucks have got you covered. A charge air cooler that is properly working has the ability to extend the life span, increases the performance, and cools down your...
    PPR_200656
    SKU:
    PPR_200656
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Make:
    Kenworth
    Make:
    GMC
    Make:
    Freightliner
    Product Type:
    Engine Parts
    $815.99 - $968.99
    Qty in Cart: 0
    Price:
    $815.99 - $968.99
    Subtotal:
  • BESTfit Charge Air Cooler 32.44 X 9 Inch For Peterbilt 330, 335, 340 & Kenworth T300

    BESTfit Charge Air Cooler 32.44 X 9 Inch For Peterbilt 330, 335, 340 & Kenworth T300

    BESTFIT TRUCK PARTS

    $611.99 - $735.99
    Is your engine overheating? 4 State Trucks have you covered. A charge air cooler that is properly working has the ability to extend the life span and increase the performance of your engine. Since...
    PPR_200655
    SKU:
    PPR_200655
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Make:
    Peterbilt
    Make:
    Kenworth
    Product Type:
    Engine Parts
    $611.99 - $735.99
    Qty in Cart: 0
    Price:
    $611.99 - $735.99
    Subtotal:
  • BESTfit Charge Air Cooler 30.88 X 14 Inch For Peterbilt 335, 340 & Kenworth T300

    BESTfit Charge Air Cooler 30.88 X 14 Inch For Peterbilt 335, 340 & Kenworth T300

    BESTFIT TRUCK PARTS

    $699.99 - $888.99
    Is your truck overheating? 4 State Trucks have got you covered. A charge air cooler that is working properly, has the ability to extend the life span and increase the performance of an engine. Since...
    PPR_200654
    SKU:
    PPR_200654
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Make:
    Peterbilt
    Make:
    Kenworth
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $699.99 - $888.99
    Qty in Cart: 0
    Price:
    $699.99 - $888.99
    Subtotal:
  • BESTfit Charge Air Cooler For Peterbilt 335 & Kenworth T450

    BESTfit Charge Air Cooler For Peterbilt 335 & Kenworth T450

    BESTFIT TRUCK PARTS

    $593.99 - $797.99
    Keep your Peterbilt 330, 335, and Kenworth T300-T450 engines performing at peak efficiency with the BESTfit Charge Air Cooler, designed for heavy-duty reliability and optimal cooling. Available as a...
    PPR_200257
    SKU:
    PPR_200257
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Make:
    Kenworth
    Product Type:
    Engine Parts
    $593.99 - $797.99
    Qty in Cart: 0
    Price:
    $593.99 - $797.99
    Subtotal:
  • BESTfit Charge Air Cooler 37 X 17.25 Inch For Kenworth T300, T800, Peterbilt 330 & 335

    BESTfit Charge Air Cooler 37 X 17.25 Inch For Kenworth T300, T800, Peterbilt 330 & 335

    BESTFIT TRUCK PARTS

    $437.99 - $560.99
    Protect your Peterbilt 330, 335, and Kenworth T300-T450 engines with the BESTfit Charge Air Cooler, designed to maximize efficiency and reliability in heavy-duty applications. Available standalone or...
    PPR_200249
    SKU:
    PPR_200249
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Make:
    Kenworth
    Product Type:
    Engine Parts
    $437.99 - $560.99
    Qty in Cart: 0
    Price:
    $437.99 - $560.99
    Subtotal:
  • FREE SHIPPING OVER $249
    BESTfit Charge Air Cooler Mounting Kit Replaces N47-51001 For Peterbilt & Kenworth 2008 & Newer

    BESTfit Charge Air Cooler Mounting Kit Replaces N47-51001 For Peterbilt & Kenworth 2008 & Newer

    BESTFIT TRUCK PARTS

    $68.99
    Charge Air Cooler Mounting KitSecure your PACCAR charge air cooler with the BESTfit Mounting Kit, designed to replace N47-51001. Built with durable rubber bushings, it reduces vibration, prevents...
    29-070133
    SKU:
    29-070133
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Make:
    Peterbilt
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    Position:
    Kit Full
    Style Options:
    Paccar
    $68.99
    Qty in Cart: 0
    Price:
    $68.99
    Subtotal:
  • BESTfit Charge Air Cooler 36 X 17.125 X 2.25 Inch Replaces 4862700004 For Kenworth T300

    BESTfit Charge Air Cooler 36 X 17.125 X 2.25 Inch Replaces 4862700004 For Kenworth T300

    BESTFIT TRUCK PARTS

    $914.99
    Charge Air Cooler W/ 4 Inch Inlet & Outlet By BESTfit Replaces 4862700004* High Quality Charge Air Cooler* Measurements:   - 36.00 Height   - 17.125 Width   - 2.25 Thick   - 4.00 Inlet   - 4.00...
    02-070122
    SKU:
    02-070122
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Product Type:
    Engine Parts
    $914.99
    Qty in Cart: 0
    Price:
    $914.99
    Subtotal:
  • BESTfit Charge Air Cooler 25 X 20.5 X 2.5 Inch Replaces 1E3225, 1E3389 For Kenworth K100C/E, T300 & T450

    BESTfit Charge Air Cooler 25 X 20.5 X 2.5 Inch Replaces 1E3225, 1E3389 For Kenworth K100C/E, T300 & T450

    BESTFIT TRUCK PARTS

    $680.99
    Charge Air Cooler W/ 4 Inch Inlet & Outlet By BESTfit Replaces 1E3225, 1E3389* High Quality Charge Air Cooler* Inches Core Size - 25.000 Height - 20.500 Width - 2.500 Core Thickness - 4.000 Inlet - 4...
    02-070104
    SKU:
    02-070104
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Product Type:
    Engine Parts
    $680.99
    Qty in Cart: 0
    Price:
    $680.99
    Subtotal:
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Adding your products to cart

Keep your engine running efficiently with high-quality charge air coolers for Kenworth T300, T450, and Peterbilt models. These coolers improve air intake, boost performance, and enhance fuel efficiency. With durable construction and exact fit options, they're built for heavy-duty use. Whether upgrading or replacing, find the perfect cooler to keep your rig at its best!

Frequently Asked Questions About Kenworth T300-T450 Charge Air Coolers

What does a charge air cooler do on my Kenworth T300-T450?

The charge air cooler, also called a CAC or intercooler, cools compressed air coming from the turbocharger before it enters the engine's intake manifold. Cooler, denser air improves combustion efficiency, boosts horsepower, and reduces strain on internal engine components.

How do I know if my charge air cooler needs to be replaced?

Common warning signs include visible cracks or leaks along the fins or end tanks, oil residue around the cooler, a noticeable drop in power or fuel economy, excessive black smoke, or a boost leak code from your engine's diagnostic system. Physical damage from road debris is also a frequent cause of failure.

Will a replacement charge air cooler fit my specific Kenworth model year?

Charge air coolers can vary by model year, engine option, and cab configuration within the T300-T450 lineup. Always check the listed part number and fitment details against your truck's VIN or original equipment part number before ordering to confirm proper fit.

Are these charge air coolers new, remanufactured, or used?

Product condition varies by listing, so be sure to review each product description carefully. Whether new, remanufactured, or used, we note the condition clearly so you know exactly what you're purchasing before checkout.

What should I check when installing a new charge air cooler?

Inspect all mounting brackets, hoses, and clamps for wear or damage, and replace any that are cracked or brittle. After installation, it's good practice to perform a boost leak test to confirm all connections are sealed properly before returning the truck to regular service.


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