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Kenworth T2000 Engine Parts & Cooling

Boost your Freightliner's performance with top-quality engine parts and cooling components from 4 State Trucks. With everything from Transmission Coolers to Oil Filters, we've got you covered. Questions? Our team is here to help!
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  • BESTfit Cummins EGR Cooler For Cummins Replaces 4352253, 5529388, 5566887

    BESTfit Cummins EGR Cooler For Cummins Replaces 4352253, 5529388, 5566887

    BESTFIT TRUCK PARTS

    $2,317.99
    EGR Cooler By BESTfit Replaces 4352253, 5529388, 5566887 Fits CumminsUpgrade your emissions system with the BESTfit Cummins EGR Cooler, a direct replacement for OEM part numbers 4352253, 5529388, and...
    29-07110014
    SKU:
    29-07110014
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $2,317.99
    Qty in Cart: 0
    Price:
    $2,317.99
    Subtotal:
  • BESTfit CAT Water Pump For Caterpillar C15 Acert Engine Replaces 2243236, 3145155, 6031668

    BESTfit CAT Water Pump For Caterpillar C15 Acert Engine Replaces 2243236, 3145155, 6031668

    BESTFIT TRUCK PARTS

    $585.99
    Water Pump By BESTfit Replaces 2243236, 3145155, 6031668 Fits Caterpillar C15 Acert EngineUpgrade your engine cooling system with the BESTfit CAT Water Pump, a direct replacement for OEM part numbers...
    29-07120150
    SKU:
    29-07120150
    Product Type:
    Engine Parts
    Style Options:
    Caterpillar
    Make:
    Universal Items
    $585.99
    Qty in Cart: 0
    Price:
    $585.99
    Subtotal:
  • BESTfit Cummins Sensor For Cummins Replaces 4384564, 5EL048, A054U491

    BESTfit Cummins Sensor For Cummins Replaces 4384564, 5EL048, A054U491

    BESTFIT TRUCK PARTS

    $504.99
    Sensor By BESTfit Replaces 4384564, 5EL048, A054U491 Fits CumminsUpgrade your engine monitoring system with the BESTfit Cummins Sensor, a direct replacement for OEM part numbers 4384564, 5EL048, and...
    29-07100084
    SKU:
    29-07100084
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $504.99
    Qty in Cart: 0
    Price:
    $504.99
    Subtotal:
  • BESTfit Cummins Water Pump W/ 110 mm Pulley For Cummins 8.3L ISC/ISL/QSL Engine Replaces 19701979, 5346205, 6410399

    BESTfit Cummins Water Pump W/ 110 mm Pulley For Cummins 8.3L ISC/ISL/QSL Engine Replaces 19701979, 5346205, 6410399

    BESTFIT TRUCK PARTS

    $216.99
    Water Pump W/ 110 mm Pulley By BESTfit Replaces 19701979, 5346205, 6410399 Fits Cummins 8.3L ISC/ISL/QSL EngineEnhance your engine cooling system with the BESTfit Cummins Water Pump with 110 mm...
    29-07120146
    SKU:
    29-07120146
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Make:
    Universal Items
    $216.99
    Qty in Cart: 0
    Price:
    $216.99
    Subtotal:
  • BESTfit Cummins Water Pump W/ 96.5mm Pulley For Cummins ISC/ISL/QSL Engine Replaces 182092, 3959582

    BESTfit Cummins Water Pump W/ 96.5mm Pulley For Cummins ISC/ISL/QSL Engine Replaces 182092, 3959582

    BESTFIT TRUCK PARTS

    $158.99
    Water Pump W/ 96.5mm Pulley By BESTfit Replaces 182092, 3959582 Fits Cummins ISC/ISL/QSL EngineEnhance your cooling system with the BESTfit Cummins Water Pump with 96.5mm pulley, a direct replacement...
    29-07120140
    SKU:
    29-07120140
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $158.99
    Qty in Cart: 0
    Price:
    $158.99
    Subtotal:
  • BESTfit Detroit Diesel Temperature Sensor For Detroit Engines Replaces 2120200002, DDEA6805401917, SKT283

    BESTfit Detroit Diesel Temperature Sensor For Detroit Engines Replaces 2120200002, DDEA6805401917, SKT283

    BESTFIT TRUCK PARTS

    $86.99
    Temperature Sensor By BESTfit Replaces 2120200002, DDEA6805401917, SKT283 Fits Detroit EnginesUpgrade your engine monitoring system with the BESTfit Detroit Diesel Temperature Sensor, a direct...
    29-07100080
    SKU:
    29-07100080
    Style Options:
    Detroit
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $86.99
    Qty in Cart: 0
    Price:
    $86.99
    Subtotal:
  • BESTfit Cummins Water Pump W/ 110 mm Pulley For Cummins 8.3L ISC/ISL/QSL Replaces 3286293, 4086, G4089647

    BESTfit Cummins Water Pump W/ 110 mm Pulley For Cummins 8.3L ISC/ISL/QSL Replaces 3286293, 4086, G4089647

    BESTFIT TRUCK PARTS

    $216.99
    Water Pump W/ 110 mm Pulley By BESTfit Replaces 3286293, 4086, G4089647 Fits Cummins 8.3L ISC/ISL/QSLEnhance your engine cooling system with the BESTfit Cummins Water Pump with 110 mm pulley, a...
    29-07120142
    SKU:
    29-07120142
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Make:
    Universal Items
    $216.99
    Qty in Cart: 0
    Price:
    $216.99
    Subtotal:
  • BESTfit Cummins EGR Cooler For Cummins Replaces 4955922, 4988884, 904333

    BESTfit Cummins EGR Cooler For Cummins Replaces 4955922, 4988884, 904333

    BESTFIT TRUCK PARTS

    $1,071.99
    EGR Cooler By BESTfit Replaces 4955922, 4988884, 904333 Fits CumminsEnhance your emissions system with the BESTfit Cummins EGR Cooler, a direct replacement for OEM part numbers 4955922, 4988884, and...
    29-07110016
    SKU:
    29-07110016
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $1,071.99
    Qty in Cart: 0
    Price:
    $1,071.99
    Subtotal:
  • BESTfit Cummins Temperature Sensor For Cummins Replaces 2872469, 4984757, SKT264

    BESTfit Cummins Temperature Sensor For Cummins Replaces 2872469, 4984757, SKT264

    BESTFIT TRUCK PARTS

    $177.99
    Temperature Sensor By BESTfit Replaces 2872469, 4984757, SKT264 Fits CumminsUpgrade your engine monitoring system with the BESTfit Cummins Temperature Sensor, a direct replacement for OEM part...
    29-07100087
    SKU:
    29-07100087
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $177.99
    Qty in Cart: 0
    Price:
    $177.99
    Subtotal:
  • BESTfit Detroit Diesel Temperature Sensor For Detroit Engines Replaces 04320774, 10031028, 2120200003

    BESTfit Detroit Diesel Temperature Sensor For Detroit Engines Replaces 04320774, 10031028, 2120200003

    BESTFIT TRUCK PARTS

    $73.99
    Detroit Diesel Temperature Sensor By BESTfit Replaces 04320774, 10031028, 2120200003 Fits Detroit EnginesUpgrade your engine monitoring system with the BESTfit Detroit Diesel Temperature Sensor, a...
    29-07100076
    SKU:
    29-07100076
    Product Type:
    Engine Parts
    Style Options:
    Detroit
    Make:
    Universal Items
    $73.99
    Qty in Cart: 0
    Price:
    $73.99
    Subtotal:
  • BESTfit Cummins Sensor For Cummins Replaces S27076, 4921729, 4903035

    BESTfit Cummins Sensor For Cummins Replaces S27076, 4921729, 4903035

    BESTFIT TRUCK PARTS

    $403.99
    Sensor By BESTfit Replaces S27076, 4921729, 4903035 Fits CumminsEnhance your engine emissions system with the BESTfit Cummins EGR Differential Pressure Sensor, a direct replacement for OEM part...
    29-07110015
    SKU:
    29-07110015
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Make:
    Universal Items
    $403.99
    Qty in Cart: 0
    Price:
    $403.99
    Subtotal:
  • BESTfit Cummins Sensor For Cummins Replaces 4384566, 5654170, SKT1307

    BESTfit Cummins Sensor For Cummins Replaces 4384566, 5654170, SKT1307

    BESTFIT TRUCK PARTS

    $529.99
    Sensor By BESTfit Replaces 4384566, 5654170, SKT1307 Fits CumminsUpgrade your engine monitoring system with the BESTfit Cummins Sensor, a direct replacement for OEM part numbers 4384566, 5654170, and...
    29-07100086
    SKU:
    29-07100086
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $529.99
    Qty in Cart: 0
    Price:
    $529.99
    Subtotal:
  • BESTfit Cummins Temperature Sensor For Cummins Replaces 5461615, A057K158, SKT1294

    BESTfit Cummins Temperature Sensor For Cummins Replaces 5461615, A057K158, SKT1294

    BESTFIT TRUCK PARTS

    $355.99
    Temperature Sensor By BESTfit Replaces 5461615, A057K158, SKT1294 Fits CumminsUpgrade your engine monitoring system with the BESTfit Cummins Temperature Sensor, a direct replacement for OEM part...
    29-07100083
    SKU:
    29-07100083
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $355.99
    Qty in Cart: 0
    Price:
    $355.99
    Subtotal:
  • BESTfit Warner Retrofit Kit K32 Replaces 10334070001

    BESTfit Warner Retrofit Kit K32 Replaces 10334070001

    BESTFIT TRUCK PARTS

    $601.99
    Warner Retrofit Kit K32 By BESTfit Replaces 10334070001Upgrade your cooling system with the BESTfit Warner Retrofit Kit K32, a direct replacement for OEM part number 10334070001. Designed for Borg...
    29-07060201
    SKU:
    29-07060201
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $601.99
    Qty in Cart: 0
    Price:
    $601.99
    Subtotal:
  • BESTfit Cummins Temperature Sensor For Cummins ISM Engines Replaces 0451235, 10031032, 2120750002

    BESTfit Cummins Temperature Sensor For Cummins ISM Engines Replaces 0451235, 10031032, 2120750002

    BESTFIT TRUCK PARTS

    $133.99
    Temperature Sensor By BESTfit Replaces 0451235, 10031032, 2120750002 Fits CumminsUpgrade your engine monitoring system with the BESTfit Cummins Temperature Sensor, a direct replacement for OEM part...
    29-07100082
    SKU:
    29-07100082
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $133.99
    Qty in Cart: 0
    Price:
    $133.99
    Subtotal:
  • BESTfit Cummins Sensor For Cummins Replaces 2131538, 4384562, 5654166

    BESTfit Cummins Sensor For Cummins Replaces 2131538, 4384562, 5654166

    BESTFIT TRUCK PARTS

    $278.99
    Sensor By BESTfit Replaces 2131538, 4384562, 5654166 Fits CumminsUpgrade your engine monitoring system with the BESTfit Cummins Sensor, a direct replacement for OEM part numbers 2131538, 4384562, and...
    29-07100085
    SKU:
    29-07100085
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $278.99
    Qty in Cart: 0
    Price:
    $278.99
    Subtotal:
  • BESTfit Cummins Temperature Sensor For Cummins Replaces 2511404C1, 5461614, A040P174

    BESTfit Cummins Temperature Sensor For Cummins Replaces 2511404C1, 5461614, A040P174

    BESTFIT TRUCK PARTS

    $281.99
    Temperature Sensor By BESTfit Replaces 2511404C1, 5461614, A040P174 Fits CumminsThe BESTfit Cummins Temperature Sensor is a premium replacement for OEM part numbers 2511404C1, 5461614, and A040P174,...
    29-07100079
    SKU:
    29-07100079
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $281.99
    Qty in Cart: 0
    Price:
    $281.99
    Subtotal:
  • BESTfit Magnet Repair Kit

    BESTfit Magnet Repair Kit

    BESTFIT TRUCK PARTS

    $690.99
    Magnet Repair Kit By BESTfitUpgrade your cooling system maintenance with the BESTfit Magnet Repair Kit, designed specifically for Horton fan clutch systems using electromagnetic activation. This...
    29-07060197
    SKU:
    29-07060197
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $690.99
    Qty in Cart: 0
    Price:
    $690.99
    Subtotal:
  • BESTfit Cummins Temperature Sensor For Cummins Replaces 2120750005, 2872467, 5EL026

    BESTfit Cummins Temperature Sensor For Cummins Replaces 2120750005, 2872467, 5EL026

    BESTFIT TRUCK PARTS

    $118.34
    Temperature Sensor By BESTfit Replaces 2120750005, 2872467, 5EL026 Fits CumminsUpgrade your engine monitoring system with the BESTfit Cummins Temperature Sensor, a direct replacement for OEM part...
    29-07100081
    SKU:
    29-07100081
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $118.34
    Qty in Cart: 0
    Price:
    $118.34
    Subtotal:
  • BESTfit Cummins Sensor For Cummins Replaces 0451231, 10021005, 2120752007

    BESTfit Cummins Sensor For Cummins Replaces 0451231, 10021005, 2120752007

    BESTFIT TRUCK PARTS

    $106.99
    Sensor By BESTfit Replaces 0451231, 10021005, 2120752007 Fits CumminsThe BESTfit Cummins Sensor is a high-quality engine sensor solution compatible with OEM part numbers 0451231, 10021005, and...
    29-07100075
    SKU:
    29-07100075
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $106.99
    Qty in Cart: 0
    Price:
    $106.99
    Subtotal:
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Adding your products to cart

Keep your Kenworth T2000 running cool and strong with engine and cooling parts designed to deliver top performance. Whether you're looking for air compressors and radiators or hoses and cooling fans, you'll find everything you need to maintain or upgrade your truck. With high-quality, OEM-style replacements, it's easy to keep your engine in peak condition and your rig ready for the road.

Frequently Asked Questions About Kenworth T2000 Engine Parts & Cooling

What year models of Kenworth T2000 are these engine cooling parts compatible with?

Our engine cooling parts are designed to fit Kenworth T2000 models from 1996 through 2004. However, compatibility can vary depending on your specific engine configuration. T2000s came with several engine options including Caterpillar C12, C13, C15, C16, Detroit Series 60, and Cummins ISX. Always verify your engine model and serial number before ordering to ensure proper fitment. If you're unsure, our customer service team can help you identify the correct parts using your OEM number.

How difficult is it to replace a radiator or water pump on a T2000, and what tools do I need?

Radiator replacement typically takes 3-5 hours for an experienced mechanic and requires basic hand tools, a coolant drain pan, and potentially a hoist for easier access. You'll need metric and standard socket sets, pliers for hose clamps, and a torque wrench for proper reassembly. Water pump replacement is more involved, usually requiring 4-6 hours, as you'll need to remove belts, pulleys, and sometimes the fan assembly. Many drivers report that accessing the lower radiator connections can be challenging due to the T2000's tight engine compartment. Having a creeper and good work lights makes the job significantly easier.

What's the difference between aluminum and plastic-tank radiators for the T2000, and which lasts longer?

Aluminum radiators with welded tanks typically last 8-12 years and handle temperature fluctuations better than plastic-tank units. Plastic-tank radiators usually cost 30-40% less but may only last 5-7 years before the tanks crack or separate at the crimped joints. Many T2000 owners prefer all-aluminum radiators for heavy-duty applications or hot climate operations. While plastic-tank radiators work fine for standard highway use, the aluminum units offer better long-term value despite the higher upfront cost.

Why is my T2000 running hot even after replacing the thermostat and coolant?

Overheating issues often involve multiple components beyond just the thermostat. Common culprits include a clogged radiator (even if it looks clean externally), a failing water pump that's not circulating coolant properly, or a damaged fan clutch not engaging at the correct temperature. Air pockets in the cooling system after service can also cause hot spots. Additionally, check for exhaust gas in the coolant system, which could indicate head gasket issues. The T2000's charge air cooler can also restrict airflow to the radiator if it's clogged with debris.

What are the most common cooling system failures on the T2000, and what parts should I keep on hand?

Based on driver reports, the most frequent failures include coolant hoses (especially the lower radiator hose that's exposed to road debris), thermostats sticking closed around 150,000-200,000 miles, and fan clutch failures causing overheating under load. Smart operators keep spare upper and lower radiator hoses, a thermostat, coolant temperature sensor, and extra coolant on hand. Belt tensioners and idler pulleys are also common failure points that can leave you stranded. Many experienced T2000 drivers recommend replacing all coolant hoses every 4-5 years as preventive maintenance, regardless of appearance.


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