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Kenworth T800 Coolant Reservoirs

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  • BESTfit DEF Doser Injector Kit For Cummins Engine Replaces 2121301002

    BESTfit DEF Doser Injector Kit For Cummins Engine Replaces 2121301002

    BESTFIT TRUCK PARTS

    $131.99
    Diesel Exhuast Fluid Injector Kit By BESTfit Replaces 2121301002 Fits Cummins EngineKeep your DEF system performing reliably with the BESTfit DEF Doser Injector Kit a replacement for Cummins engines...
    29-06070022
    SKU:
    29-06070022
    Product Type:
    Fuel Tanks
    Make:
    Universal Items
    $131.99
    Qty in Cart: 0
    Price:
    $131.99
    Subtotal:
  • TPHD Coolant Reservoir With Coolant Level Sensor & Caps T1673008 For Peterbilt/Kenworth

    TPHD Coolant Reservoir With Coolant Level Sensor & Caps T1673008 For Peterbilt/Kenworth

    TPHD

    $185.99
    Coolant Reservoir With Coolant Level Sensor & Caps & Large Flow Port* High Quality Coolant Reservoir With Sensor & Cap* Includes - Coolant Level Sensor  - Caps* Made Of Plastic* Large Flow Port* Sold...
    29-0702113
    SKU:
    29-0702113
    Truck Class:
    Heavy Duty
    Material Options:
    Plastic/Poly
    Make:
    Peterbilt
    Make:
    Kenworth
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $185.99
    Qty in Cart: 0
    Price:
    $185.99
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  • FREE SHIPPING OVER $249
    Black Plastic Coolant Reservoir Cap Without Nipple Replaces RC0050 For Kenworth & Peterbilt

    Black Plastic Coolant Reservoir Cap Without Nipple Replaces RC0050 For Kenworth & Peterbilt

    BESTFIT TRUCK PARTS

    $11.68
    Coolant Reservoir Cap Without Nipple Fits Kenworth & Peterbilt ModelsIs your engine coolant reservoir cap lost or damaged? Replace it seamlessly and effectively with this direct replacement cap...
    29-070206
    SKU:
    29-070206
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Make:
    Peterbilt
    Product Type:
    Engine Parts
    $11.68
    Qty in Cart: 0
    Price:
    $11.68
    Subtotal:
  • FREE SHIPPING OVER $249
    TPHD Black Plastic Coolant Reservoir Cap With Nipple Replaces N5348001 For Kenworth & Peterbilt

    TPHD Black Plastic Coolant Reservoir Cap With Nipple Replaces N5348001 For Kenworth & Peterbilt

    TURNPIKE TRUCK TRIM

    $32.65
    15 PSI Coolant Reservoir Cap By TPHDReplace a worn out cap on your coolant reservoir, with this durable and direct replacement cap with a nipple. It features a warning message in an easy to read...
    29-070205
    SKU:
    29-070205
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Make:
    Kenworth
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $32.65
    Qty in Cart: 0
    Price:
    $32.65
    Subtotal:
  • FREE SHIPPING OVER $249
    Coolant Reservoir For Cummins Or CAT Engine With Behr Cooling Module - Replaces N5346001 By BESTfit

    Coolant Reservoir For Cummins Or CAT Engine With Behr Cooling Module - Replaces N5346001 By BESTfit

    BESTFIT TRUCK PARTS

    $224.99
    BESTfit Coolant Reservoir Fits Peterbilt & KenworthOver Time Coolant Reservoirs Become Susceptible To Heat And Engine Vibration And Eventually Crack And Leak. Our Coolant Reservoirs Are Manufactured...
    29-070203
    SKU:
    29-070203
    Truck Class:
    Heavy Duty
    Material Options:
    Plastic/Poly
    Make:
    Peterbilt
    Make:
    Kenworth
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $224.99
    Qty in Cart: 0
    Price:
    $224.99
    Subtotal:
  • FREE SHIPPING OVER $249
    BESTfit Coolant Level Sensor Replaces N9267001 For Kenworth & Peterbilt

    BESTfit Coolant Level Sensor Replaces N9267001 For Kenworth & Peterbilt

    BESTFIT TRUCK PARTS

    $41.99
    BESTfit Coolant Level SensorStay informed about the coolant levels in your Kenworth or Peterbilt engine with our high-quality Coolant Level Sensor. It accurately notifies the onboard computer system...
    29-0702003
    SKU:
    29-0702003
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Make:
    Peterbilt
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $41.99
    Qty in Cart: 0
    Price:
    $41.99
    Subtotal:
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Adding your products to cart

When it comes to finding high-quality, aftermarket coolant reservoirs and related components for your Kenworth T800, we make it easy. Whether you need a replacement cap, a reservoir with a coolant level sensor, or a complete unit to upgrade your cooling system, you'll find reliable options from trusted brands like BESTfit and TPHD. These products are designed to ensure proper coolant levels and prevent overheating, keeping your Kenworth T800 running efficiently and safely on the road. Key features include durable construction, easy installation, and compatibility with popular engine makes like Cummins and CAT. Investing in the right coolant reservoir can make a significant difference in the performance and lifespan of your semi-truck.

Frequently Asked Questions About Kenworth T800 Coolant Reservoirs

Will this coolant reservoir fit my Kenworth T800?

Coolant reservoirs can vary by model year and engine configuration, so it's important to check the mounting bracket style, inlet and outlet port locations, and overall dimensions against your truck's original unit before purchasing. If you're unsure, comparing the OEM part number or providing your truck's VIN and year to our team can help confirm the correct fit.

What material are these coolant reservoirs made from?

Most coolant reservoirs for the Kenworth T800 are constructed from durable plastic designed to withstand engine heat and constant exposure to coolant. Some aftermarket options may use reinforced or heavy-duty plastic blends for added durability in demanding conditions, so check the product description for specific material details.

How do I know if my coolant reservoir needs to be replaced?

Common signs that a coolant reservoir needs replacing include visible cracks, leaks around the seams or fittings, discoloration from heat exposure, or a cap that no longer seals properly. If you notice frequent coolant loss without an obvious external leak elsewhere in the cooling system, the reservoir itself may be the culprit.

Is installation something I can do myself?

Replacing a coolant reservoir is generally a straightforward job that involves draining any remaining coolant, disconnecting the hoses and mounting hardware, and transferring them to the new reservoir. Many truck owners and shops handle this as a routine maintenance task, though if your setup includes additional sensors or level indicators, take care to reconnect them properly.

Do these reservoirs include the cap and mounting hardware?

This varies by product listing, as some coolant reservoirs are sold complete with a cap and mounting brackets while others include only the tank itself. Be sure to review the product details or reach out to our team before ordering if you need to confirm exactly what's included.


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