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Engine Cooling

Ensure your rig runs cool with our range of semi-truck engine cooling parts at 4 State Trucks. Discover new radiators, fans, and coolant systems for your truck, whether you need a quality replacement or a performance upgrade. Drive confidently and explore our lineup for dependable solutions to conquer high temperatures on the road.
  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • BESTfit Copper Brass Radiator 17.75 X 18.25 X 1.875 Inch 3 Row Replaces D89103 For Case 580C Tractor

    BESTfit Copper Brass Radiator 17.75 X 18.25 X 1.875 Inch 3 Row Replaces D89103 For Case 580C Tractor

    BESTFIT TRUCK PARTS

    $444.99
    Radiator W/ 2 Inch Inlet & 1.75 Inch Outlet* High Quality Radiator * Cooper Brass Material* 17.75 Height * 18.25 Width * 1.875 Thick * 2.00 Inlet Top Center * 1.75 Outlet Lower Left* Sold...
    80-070200036
    SKU:
    80-070200036
    Truck Class:
    Heavy Duty
    Material Options:
    Brass Copper
    Product Type:
    Engine Parts
    $444.99
    Qty in Cart: 0
    Price:
    $444.99
    Subtotal:
  • BESTfit New Holland B95 Backhoe Loader Radiator

    BESTfit New Holland B95 Backhoe Loader Radiator

    $65,536.00
    BESTfit New Holland B95 Backhoe Loader RadiatorAre you looking for a Radiator that will keep your tractor running for years? 4 State Trucks offers this high-quality radiator that is built to ensure...
    80-070200031
    SKU:
    80-070200031
    $65,536.00
    Qty in Cart: 0
    Price:
    $65,536.00
    Subtotal:
  • BESTfit Copper Brass 3 Row Radiator With Solder-On Tanks For Airport Tug With 6 Inch Oil Cooler

    BESTfit Copper Brass 3 Row Radiator With Solder-On Tanks For Airport Tug With 6 Inch Oil Cooler

    BESTFIT TRUCK PARTS

    $645.99
    BESTfit Copper Brass 3 Row Radiator With Solder-On Tanks For Airport Tug With 6 Inch Oil Cooler* High Quality Radiator * Made Of Copper/Brass* Includes:  - Bolt on Tank With CB Solder   - Without...
    80-070200020
    SKU:
    80-070200020
    Truck Class:
    Heavy Duty
    Material Options:
    Brass Copper
    Size Options:
    3 Row
    Product Type:
    Engine Parts
    $645.99
    Qty in Cart: 0
    Price:
    $645.99
    Subtotal:
  • BESTfit Copper Steel 4 Row Radiator For Detroit Diesel 60 Series Industrial With Front Guard, Fan Shroud, Fan Guard

    BESTfit Copper Steel 4 Row Radiator For Detroit Diesel 60 Series Industrial With Front Guard, Fan Shroud, Fan Guard

    BESTFIT TRUCK PARTS

    $5,642.99
    BESTfit Copper Steel 4 Row Radiator For Detroit Diesel 60 Series Industrial With Front Guard, Fan Shroud, Fan Guard* High Quality Radiator * Made Of Copper/Brass* Bolt on Tank * 4 Rows* With Charge...
    80-070200019
    SKU:
    80-070200019
    Truck Class:
    Heavy Duty
    Size Options:
    4 Row
    Product Type:
    Engine Parts
    $5,642.99
    Qty in Cart: 0
    Price:
    $5,642.99
    Subtotal:
  • BESTfit Copper Brass Radiator With Solder-On Tanks For Detroit Diesel 6-70, 6-71T Industrial With Front Guard, Fan Shroud

    BESTfit Copper Brass Radiator With Solder-On Tanks For Detroit Diesel 6-70, 6-71T Industrial With Front Guard, Fan Shroud

    BESTFIT TRUCK PARTS

    $1,400.99
    BESTfit Detroit Generator Radiator* High Quality Radiator * Made Of Copper Brass * Solder on Tank * 5 Rows* Core Size:  - 29.00 Inch Height  - 26.25 Inch Width  - 3.75 Inch Depth   - 1.75 Inch Inlet...
    80-070200018
    SKU:
    80-070200018
    Truck Class:
    Heavy Duty
    Material Options:
    Brass Copper
    Size Options:
    5 Row
    Product Type:
    Engine Parts
    $1,400.99
    Qty in Cart: 0
    Price:
    $1,400.99
    Subtotal:
  • BESTfit Copper Brass Radiator With Solder-On Tanks For Industrial Lincoln Welder 400A

    BESTfit Copper Brass Radiator With Solder-On Tanks For Industrial Lincoln Welder 400A

    BESTFIT TRUCK PARTS

    $1,553.99
    BESTfit Copper Brass Radiator With Solder-On Tanks For Industrial Lincoln Welder 400A* High Quality Radiator * Made Of Copper/Brass * Solder on Tank * 2 Rows* Core Size:   - 21.375 Inch Height  - 19...
    80-070200017
    SKU:
    80-070200017
    Truck Class:
    Heavy Duty
    Material Options:
    Brass Copper
    Size Options:
    2 Row
    Product Type:
    Engine Parts
    $1,553.99
    Qty in Cart: 0
    Price:
    $1,553.99
    Subtotal:
  • BESTfit Copper Brass Radiator With Solder-On Tanks For Ajax Oil Pumps 7.25L - 8.5L Industrial

    BESTfit Copper Brass Radiator With Solder-On Tanks For Ajax Oil Pumps 7.25L - 8.5L Industrial

    BESTFIT TRUCK PARTS

    $995.99
    BESTfit Copper Brass Radiator With Solder-On Tanks For Ajax Oil Pumps 7.25L - 8.5L Industrial* High Quality Radiator * Made Of Copper/Brass* Solder On Tank* 3 Rows * Core Size:  - 20.125 Inch Height ...
    80-070200016
    SKU:
    80-070200016
    Truck Class:
    Heavy Duty
    Material Options:
    Brass Copper
    Size Options:
    3 Row
    Product Type:
    Engine Parts
    $995.99
    Qty in Cart: 0
    Price:
    $995.99
    Subtotal:
  • BESTfit Copper Brass Radiator 24 X 22 X 3.5 Inch 6 Row Replaces 121723C1, 121725C1 For International Harvester Tractors

    BESTfit Copper Brass Radiator 24 X 22 X 3.5 Inch 6 Row Replaces 121723C1, 121725C1 For International Harvester Tractors

    BESTFIT TRUCK PARTS

    $804.99
    Solder On Radiator W/ 2 Inch Inlet & 2.5 Inch Outlet By BESTfit Replaces 121723C1, 121725C1* High Quality Radiator * Made Of Copper/Brass* Solder On Tank* 7 Fins Per Inch* 6 Rows * Core Size:  - 24.0...
    80-070200015
    SKU:
    80-070200015
    Truck Class:
    Heavy Duty
    Material Options:
    Brass Copper
    Make:
    International
    Size Options:
    6 Row
    Product Type:
    Engine Parts
    $804.99
    Qty in Cart: 0
    Price:
    $804.99
    Subtotal:
  • BESTfit Plastic Aluminum Radiator 17.6875 X 17.625 X 1.875 Inch 1 Row Replaces 1210380000, 21450FK31A For Caterpillar, Mitsubishi Industrial Unit

    BESTfit Plastic Aluminum Radiator 17.6875 X 17.625 X 1.875 Inch 1 Row Replaces 1210380000, 21450FK31A For Caterpillar, Mitsubishi Industrial Unit

    BESTFIT TRUCK PARTS

    $470.99
    Radiator W/ 1.375 Inch Inlet & 1.375 Inch Outlet By BESTfit Replaces 1210380000, 21450FK31A* High Quality Radiator * Made Of Plastic/Aluminum* With Oil Cooler* Without Bottom Pin Bracket * Core Size:...
    80-070200014
    SKU:
    80-070200014
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Product Type:
    Engine Parts
    $470.99
    Qty in Cart: 0
    Price:
    $470.99
    Subtotal:
  • BESTfit Copper Brass Radiator 20.25 X 13.25 X 2.75 Inch 4 Row Replaces 219589, 437840 For John Deere Tractors

    BESTfit Copper Brass Radiator 20.25 X 13.25 X 2.75 Inch 4 Row Replaces 219589, 437840 For John Deere Tractors

    BESTFIT TRUCK PARTS

    $414.99
    Radiator W/ 1.5 Inch Inlet & 2 Inch Outlet By BESTfit Replaces 219589, 437840* High Quality Radiator * Made Of Copper/Brass* 9 Fins Per Inch* 4 Rows * Core Size:  - 20.25 Inch Height  - 13.25 Inch...
    80-070200013
    SKU:
    80-070200013
    Truck Class:
    Heavy Duty
    Material Options:
    Brass Copper
    Size Options:
    4 Row
    Product Type:
    Engine Parts
    $414.99
    Qty in Cart: 0
    Price:
    $414.99
    Subtotal:
  • BESTfit Plastic Aluminum Radiator 19.75 X 16.875 X 1.875 Inch 1 Row Replaces 6410F210071, 16410F210071A For Toyota Lift Trucks

    BESTfit Plastic Aluminum Radiator 19.75 X 16.875 X 1.875 Inch 1 Row Replaces 6410F210071, 16410F210071A For Toyota Lift Trucks

    BESTFIT TRUCK PARTS

    $469.99
    Radiator W/ 1.375 Inch Inlet & 3.75 Inch Outlet By BESTfit Replaces 6410F210071, 16410F210071A* High Quality Radiator * Made Of Plastic/Aluminum* Core Size: * With Oil Cooker* Without Bottom Pin...
    80-070200011
    SKU:
    80-070200011
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Make:
    Toyota
    Product Type:
    Engine Parts
    $469.99
    Qty in Cart: 0
    Price:
    $469.99
    Subtotal:
  • BESTfit Plastic Aluminum Radiator 17.6875 X 17.625 X 1.875 Inch Replaces 21450FC301, 21450FC30A For Nissan Lift Trucks

    BESTfit Plastic Aluminum Radiator 17.6875 X 17.625 X 1.875 Inch Replaces 21450FC301, 21450FC30A For Nissan Lift Trucks

    BESTFIT TRUCK PARTS

    $589.99
    Radiator W/ 1.375 Inch Inlet & 1.375 Inch Outlet By BESTfit Replaces 21450FC301, 21450FC30A* High Quality Radiator * Made Of Plastic/Aluminum* With Oil Cooler* Without Bottom Pin Bracket * Core Size:...
    80-070200010
    SKU:
    80-070200010
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Make:
    Nissan
    Product Type:
    Engine Parts
    $589.99
    Qty in Cart: 0
    Price:
    $589.99
    Subtotal:
  • BESTfit Copper Brass Radiator 21.75 X 18.375 Inch 3 Row Replaces 20071067, 219557 For International Harvester Tractor Models

    BESTfit Copper Brass Radiator 21.75 X 18.375 Inch 3 Row Replaces 20071067, 219557 For International Harvester Tractor Models

    BESTFIT TRUCK PARTS

    $914.99
    Solder On Radiator W/ 2 Inch Inlet & 2 Inch Outlet By BESTfit Replaces 20071067, 219557 Fits International Harvester Tractor Models* High Quality Radiator * Made Of Copper/Brass* 8 Fins Per Inch* 3...
    80-070200009
    SKU:
    80-070200009
    Truck Class:
    Heavy Duty
    Material Options:
    Brass Copper
    Size Options:
    3 Row
    Product Type:
    Engine Parts
    $914.99
    Qty in Cart: 0
    Price:
    $914.99
    Subtotal:
  • BESTfit Copper Brass Radiator 17.6875 X 17.625 X 1.875 Inch 2 Row Replaces 16410U120071, 16410U120171 For Toyota Lift Trucks 1999-Current

    BESTfit Copper Brass Radiator 17.6875 X 17.625 X 1.875 Inch 2 Row Replaces 16410U120071, 16410U120171 For Toyota Lift Trucks 1999-Current

    BESTFIT TRUCK PARTS

    $350.99
    Radiator W/ 1.375 Inch Inlet & 1.375 Inch Outlet By BESTfit Replaces 16410U120071, 16410U120171 Fits Toyota Lift Trucks 1999-Current* High Quality Radiator * Made Of Copper And Brass * With 10 Plate...
    80-070200008
    SKU:
    80-070200008
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Make:
    Toyota
    Product Type:
    Engine Parts
    $350.99
    Qty in Cart: 0
    Price:
    $350.99
    Subtotal:
  • BESTfit Copper Brass Radiator 27 X 21.75 X 3.375 Inch 3 Row Replaces 14066311, 20071039

    BESTfit Copper Brass Radiator 27 X 21.75 X 3.375 Inch 3 Row Replaces 14066311, 20071039

    BESTFIT TRUCK PARTS

    $1,425.99
    Solder On Radiator W/ 2 Inch Inlet & 2.25 Inch Outlet By BESTfit Replaces 14066311, 20071039* High Quality Radiator * Made Of Copper/Brass* 9 Fins Per Inch* 3 Rows * Core Size:  - 27.00 Inch Height ...
    80-070200007
    SKU:
    80-070200007
    Truck Class:
    Heavy Duty
    Material Options:
    Brass Copper
    Size Options:
    3 Row
    Product Type:
    Engine Parts
    $1,425.99
    Qty in Cart: 0
    Price:
    $1,425.99
    Subtotal:
  • BESTfit Copper Brass Radiator 18.1875 X 15.25 X 1.75 Inch 3 Row Replaces 12060006, 1660499M92

    BESTfit Copper Brass Radiator 18.1875 X 15.25 X 1.75 Inch 3 Row Replaces 12060006, 1660499M92

    BESTFIT TRUCK PARTS

    $482.99
    Solder On Radiator W/ 1.5 Inch Inlet & 1.5 Inch Outlet By BESTfit Replaces 12060006, 1660499M92* High Quality Radiator * Made Of Copper/Brass* 3 Rows * Core Size:  - 18.1875 Inch Height  - 15.25 Inch...
    80-070200006
    SKU:
    80-070200006
    Truck Class:
    Heavy Duty
    Material Options:
    Brass Copper
    Size Options:
    3 Row
    Product Type:
    Engine Parts
    $482.99
    Qty in Cart: 0
    Price:
    $482.99
    Subtotal:
  • BESTfit Copper Brass Radiator 17.625 X 18 X 2.125 Inch 3 Row Replaces 17066535, 20071044

    BESTfit Copper Brass Radiator 17.625 X 18 X 2.125 Inch 3 Row Replaces 17066535, 20071044

    BESTFIT TRUCK PARTS

    $567.99
    Solder On Radiator W/ 2 Inch Inlet & 1.75 Inch Outlet By BESTfit Replaces 17066535, 20071044* High Quality Radiator * Made Of Copper/Brass* 9 Fins Per Inch* 3 Rows * Core Size:  - 17.625 Inch Height ...
    80-070200005
    SKU:
    80-070200005
    Truck Class:
    Heavy Duty
    Material Options:
    Brass Copper
    Make:
    International
    Size Options:
    3 Row
    Product Type:
    Engine Parts
    $567.99
    Qty in Cart: 0
    Price:
    $567.99
    Subtotal:
  • BESTfit Copper Brass Radiator 17.75 X 18 X 2.75 Inch 5 Row Replaces 11066312, 20071040 For Ford-New Holland 7000, 7100, 7200 Tractors

    BESTfit Copper Brass Radiator 17.75 X 18 X 2.75 Inch 5 Row Replaces 11066312, 20071040 For Ford-New Holland 7000, 7100, 7200 Tractors

    BESTFIT TRUCK PARTS

    $808.99
    Solder On Radiator W/ 1.5 Inch Inlet & 1.75 Inch Outlet By BESTfit Replaces 11066312, 20071040* High Quality Radiator * Made Of Copper/Brass* 9 Fins Per Inch* 5 Rows * With Oil Cooler On Motor Side*...
    80-070200004
    SKU:
    80-070200004
    Truck Class:
    Heavy Duty
    Material Options:
    Brass Copper
    Make:
    Ford
    Product Type:
    Engine Parts
    Size Options:
    5 Row
    $808.99
    Qty in Cart: 0
    Price:
    $808.99
    Subtotal:
  • BESTfit Copper Brass Radiator 15.5 X 17.375 X 2 Inch 3 Row Replaces 20071038, 219522 For Ford-New Holland Tractors

    BESTfit Copper Brass Radiator 15.5 X 17.375 X 2 Inch 3 Row Replaces 20071038, 219522 For Ford-New Holland Tractors

    BESTFIT TRUCK PARTS

    $413.99
    Solder On Radiator W/ 1.5 Inch Inlet & 1.75 Inch Outlet By BESTfit Replaces 20071038, 219522 Fits Ford-New Holland Tractors* High Quality Radiator * Made Of Copper/Brass* With Transmission Oil Cooler...
    80-070200003
    SKU:
    80-070200003
    Truck Class:
    Heavy Duty
    Material Options:
    Brass Copper
    Make:
    Ford
    Size Options:
    3 Row
    Product Type:
    Engine Parts
    $413.99
    Qty in Cart: 0
    Price:
    $413.99
    Subtotal:
  • BESTfit Plastic Aluminum Radiator 20.25 X 19.875 X 2.875 Inch 14 Rows Replaces 437895

    BESTfit Plastic Aluminum Radiator 20.25 X 19.875 X 2.875 Inch 14 Rows Replaces 437895

    BESTFIT TRUCK PARTS

    $815.99
    Radiator W/ 2.375 Inch Inlet & 2.375 Inch Outet 14 Row By BESTfit Replaces 437895* High Quality Radiator * Made Of Plastic/Aluminum* Core Size:   - 20.25 Inch Height  - 19.875 Inch Width  - 2.875...
    80-070200002
    SKU:
    80-070200002
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Product Type:
    Engine Parts
    $815.99
    Qty in Cart: 0
    Price:
    $815.99
    Subtotal:
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Adding your products to cart

When your cooling parts get damaged, buying the right replacements is critical to keeping your semi truck engine components all running optimally. A cool-running engine will even help extend the lifespan of your semi truck exhaust parts. Whether you’re looking to replace or upgrade your engine’s cooling system, we’ve got just the parts to help you do it.

Here’s Why Getting Quality Semi Truck Cooling Parts Matters

Radiator – The heart of your cooling system. It pulls heat away from the engine so you don’t overheat on long runs. We offer classic brass/copper radiators and modern aluminum/plastic. Heater hoses – Carry coolant between your engine and heater core. Buying our durable hoses means you get zero leaks and a solid two-way flow from engine to radiator. APU (Auxiliary Power Unit) – Lets you run your AC, heater, or other systems without idling your big engine. Saves fuel and cuts wear. We offer natural gas APUs from RigMaster. Condenser – Works with your AC to cool refrigerant. No condenser, no cold air. We offer AC condensers from top brands like BESTfit. AC drier – Removes moisture from the system. Keeps your AC blowing dry, cold air instead of foggy, warm air. Compressor – The pump that moves refrigerant through your AC system. It’s what makes cold air possible. We offer York Style compressors and A/C specific compressors. Evaporator – Absorbs heat from inside your cab. It’s the part that keeps you comfortable in hot weather.

Maintain Your Commercial Truck Engine Cooling System with 4 State Trucks

Each part plays a role in keeping your engine, AC, and cab running smooth. Swap in a quality replacement when something wears out, and you’ll save yourself from bigger headaches down the road. Shop for the perfect replacement engine cooling components for your commercial vehicle today!

Frequently Asked Questions About Semi-Truck Engine Cooling Parts

How do I know which radiator or cooling part fits my specific truck model?

The most reliable way to ensure compatibility is to check your truck's OEM number and cross-reference it with the part specifications. Most cooling parts are model and year-specific, especially for popular brands like Peterbilt, Kenworth, and Freightliner. Look for the OEM part number on your existing radiator or cooling component - it's typically stamped on a metal tag. When in doubt, provide us with your truck's year, make, model, and engine type (such as Cummins ISX, Detroit DD15, or CAT C15) for accurate matching.

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

Aluminum radiators with aluminum tanks typically outlast plastic-tank models by 5-10 years in commercial applications. While plastic-tank radiators are initially cheaper, they're prone to cracking at the tank-to-core crimped connections after 3-5 years of heat cycling. Aluminum radiators handle temperature extremes better and can often be repaired if damaged, whereas plastic tanks usually require complete replacement. For trucks logging over 100,000 miles annually, the aluminum investment pays off through reduced downtime.

Can I install a new radiator or water pump myself, or do I need special tools?

Basic radiator replacement can be DIY-friendly if you have standard mechanic tools, including wrenches, coolant drain pans, and basic lifting equipment. However, you'll need a coolant pressure tester to check for leaks and potentially special pulley removal tools for water pump replacement. The biggest challenge is usually access - some models require remoOEMg the charge air cooler or other components first. Plan for 3-6 hours for a radiator swap and 2-4 hours for a water pump, depending on your truck model. Always replace thermostats and hoses when doing major cooling work.

Why do cooling fans fail prematurely, and what are the warning signs?

The most common failure points are the fan clutch (for belt-driven fans) and the electronic control module (for electric fans). Warning signs include the fan running constantly, not engaging when the engine is hot, excessive roaring noise, or visible wobble. Fan clutches typically fail due to silicone fluid leakage after 200,000-300,000 miles. Check for oily residue around the clutch housing. Electronic fans often fail due to worn brushes in the motor or faulty temperature sensors sending incorrect signals.

What coolant type should I use, and can mixing different types damage my cooling system?

Never mix conventional green coolant with extended-life coolants (red, pink, or orange). Mixing creates a gel-like substance that clogs passages and destroys water pump seals. Most modern trucks use either CAT ELC (red), Cummins ES Compleat (pink), or Detroit Power Cool Plus (orange). Check your owner's manual or look for a coolant specification sticker under the hood. When switching coolant types, perform a complete system flush including the heater core. Extended-life coolants typically last 600,000-750,000 miles with proper additive maintenance at 300,000-mile intervals.


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