Cooler System

Cooler System

Genuine Cooler System for Diesel Engines – Onan, Cummins & Fleetguard

Maintain peak performance and durability of your diesel power engines with our authentic Cooler System components. Engineered to provide efficient heat dissipation, these cooling systems prevent overheating and ensure your Onan, Cummins, or Fleetguard engines run smoothly under all conditions.

Cooler System Solutions | Genuine Onan, Cummins & Fleetguard Parts

Our Cooler System category includes radiators, heat exchangers, and related cooling components designed to fit your diesel engines precisely. Each part is crafted to maintain optimal engine temperature and enhance operational efficiency.

  • Authentic Quality: Genuine parts manufactured to meet strict OEM standards for reliability and longevity.
  • Comprehensive Selection: Includes all essential cooling system components compatible with Onan, Cummins, and Fleetguard diesel engines.
  • Engine Protection: Effective thermal management ensures reduced wear, improved fuel efficiency, and extended engine life.

Why Choose Our Cooler System? Trust our genuine, expertly sourced cooling components to maximize your diesel engine’s performance and reliability every time.

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  • CUMMINS 2886394 - OIL COOLER - Original OEM part - Image 1
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    CUMMINS 2886394 OIL COOLER Original OEM part

    CUMMINS

    $2,416.76
    $2,207.71
    Engineered excellence for enduring performance Precision cooling technology to safeguard your engine Manufactured as a genuine OEM Cummins component for guaranteed compatibility and...
    $2,416.76
    $2,207.71
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    Qty in Cart: 0
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    Price:
    $2,416.76
    $2,207.71
    Subtotal:
  • ONAN 179-4902-03 - 179490203 COOLANT HEATER INSTALLATION Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
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    ONAN 179490203 COOLANT HEATER INSTALLATION Original ONAN/CUMMINS OEM part

    ONAN

    $614.56
    $561.40
    Precision engineered for trust and performance in every connection. Enhances engine warm-up speed, reducing wear and emissions. Durable construction ensures long-lasting service under demanding...
    $614.56
    $561.40
    Add to Cart
    Qty in Cart: 0
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    Price:
    $614.56
    $561.40
    Subtotal:
  • ONAN 179-3850-04 - 179385004 COOLING HEATER INSTALLATION Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
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    ONAN 179385004 COOLING HEATER INSTALLATION Original ONAN/CUMMINS OEM part

    ONAN

    $4,693.87
    $4,287.85
    Dependable precision engineered for your generator's peak efficiency Ensures optimal engine temperature regulation under demanding conditions Certified OEM component designed exclusively by ONAN for...
    $4,693.87
    $4,287.85
    Add to Cart
    Qty in Cart: 0
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    Price:
    $4,693.87
    $4,287.85
    Subtotal:
  • ONAN 179-3577-04 - 179357704 HEATER KIT COOLANT Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
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    ONAN 179357704 HEATER KIT COOLANT Original ONAN/CUMMINS OEM part

    ONAN

    $5,347.54
    $4,884.98
    Empower your power system with precision-engineered reliability Ensures optimal coolant circulation to maintain ideal engine temperature Enhances engine longevity and prevents costly downtime 100%...
    $5,347.54
    $4,884.98
    Add to Cart
    Qty in Cart: 0
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    Price:
    $5,347.54
    $4,884.98
    Subtotal:
  • ONAN 130-5339 - 1305339 FUEL COOLER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
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    ONAN 1305339 FUEL COOLER Original ONAN/CUMMINS OEM part

    ONAN

    $10,904.22
    $9,961.00
    Engineered for excellence, built for endurance – your generator’s performance depends on it. Maintains ideal fuel temperature to optimize combustion and minimize wear. Durable design crafted to...
    $10,904.22
    $9,961.00
    Add to Cart
    Qty in Cart: 0
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    Price:
    $10,904.22
    $9,961.00
    Subtotal:
  • ONAN 249-0859 - 2490859 COOLANT HEATER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
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    ONAN 2490859 COOLANT HEATER Original ONAN/CUMMINS OEM part

    ONAN

    $5,731.00
    $5,235.27
    Empower your generator with dependable warmth and precision engineering Optimized heater design promotes rapid coolant temperature rise for efficient engine operation Durable construction suited for...
    $5,731.00
    $5,235.27
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $5,731.00
    $5,235.27
    Subtotal:
  • ONAN 130-5064 - 1305064 FUEL COOLER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
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    ONAN 1305064 FUEL COOLER Original ONAN/CUMMINS OEM part

    ONAN

    $5,967.82
    $5,451.60
    Precision engineered for seamless fuel temperature regulation Enhances engine efficiency and prolongs component life Authentic ONAN OEM part guaranteeing perfect fit and lasting performance ONAN...
    $5,967.82
    $5,451.60
    Add to Cart
    Qty in Cart: 0
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    Price:
    $5,967.82
    $5,451.60
    Subtotal:
  • ONAN A031A908 - CHARGE AIR COOLER F Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
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    ONAN A031A908 CHARGE AIR COOLER F Original ONAN/CUMMINS OEM part

    ONAN

    $3,873.18
    $3,538.15
    Engineered precision for peak engine efficiency and reliability Optimized charge air cooling to maintain consistent performance under demanding conditions Genuine ONAN OEM component designed for...
    $3,873.18
    $3,538.15
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $3,873.18
    $3,538.15
    Subtotal:
  • ONAN 154-3178 - 1543178 CHARGE AIR COOLER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
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    ONAN 1543178 CHARGE AIR COOLER Original ONAN/CUMMINS OEM part

    ONAN

    $4,214.49
    $3,849.94
    Engineered Precision Meets Unmatched Reliability Efficient Charge Air Cooling for Enhanced Engine Performance Durable Construction to Withstand Demanding Generator Operation 100% Genuine ONAN OEM...
    $4,214.49
    $3,849.94
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $4,214.49
    $3,849.94
    Subtotal:
  • ONAN A040P966 - OIL COOLER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
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    ONAN A040P966 OIL COOLER Original ONAN/CUMMINS OEM part

    ONAN

    $2,738.53
    $2,501.65
    Cummins OIL COOLER A040P966 Ensure top performance for your equipment with the original Cummins OIL COOLER (SKU: A040P966). Designed to meet the highest quality standards, this essential part...
    $2,738.53
    $2,501.65
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $2,738.53
    $2,501.65
    Subtotal:
  • ONAN A029B304 - COOLANT HEATER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
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    ONAN A029B304 COOLANT HEATER Original ONAN/CUMMINS OEM part

    ONAN

    $3,226.66
    $2,947.55
    Precision-engineered warmth for your Onan power system Ensures rapid engine warm-up for improved performance Maintains coolant temperature to prevent wear and reduce emissions Certified genuine ONAN...
    $3,226.66
    $2,947.55
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $3,226.66
    $2,947.55
    Subtotal:
  • ONAN A029C774 - COOLANT HEATER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
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    ONAN A029C774 COOLANT HEATER Original ONAN/CUMMINS OEM part

    ONAN

    $3,258.69
    $2,976.82
    Dependable performance that powers your peace of mind Optimized coolant heating for rapid engine readiness Precision engineered for seamless integration with Onan generators 100% genuine OEM...
    $3,258.69
    $2,976.82
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $3,258.69
    $2,976.82
    Subtotal:
  • ONAN A028X762 - COOLANT HEATER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
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    ONAN A028X762 COOLANT HEATER Original ONAN/CUMMINS OEM part

    ONAN

    $879.02
    $802.98
    Engineered Excellence for Reliable Starts Rapid and efficient coolant warming for reduced engine wear Durable construction to withstand demanding conditions 100% OEM part designed by ONAN for...
    $879.02
    $802.98
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $879.02
    $802.98
    Subtotal:
  • ONAN 333-0729-01 - 333072901 ENGINE COOLANT HEATER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
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    ONAN 333072901 ENGINE COOLANT HEATER Original ONAN/CUMMINS OEM part

    ONAN

    $1,961.89
    $1,792.19
    Precision performance engineered to keep your ONAN engine running smoothly under all conditions. Efficient coolant heating design that reduces engine warm-up time and improves fuel economy. Durable...
    $1,961.89
    $1,792.19
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $1,961.89
    $1,792.19
    Subtotal:
  • ONAN 333-0706 - 3330706 ENGINE COOLANT HEATER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
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    ONAN 3330706 ENGINE COOLANT HEATER Original ONAN/CUMMINS OEM part

    ONAN

    $1,523.10
    $1,391.36
    Precision-engineered for seamless integration and enduring performance Provides rapid engine warm-up for smoother startups and reduced wear Robust design ensures consistent coolant temperature...
    $1,523.10
    $1,391.36
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $1,523.10
    $1,391.36
    Subtotal:
  • ONAN A040D675 - C33203000 ELEMENT CONTROLLER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
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    ONAN A040D675 C33203000 ELEMENT CONTROLLER Original ONAN/CUMMINS OEM part

    ONAN

    $1,079.03
    $985.69
    Precision engineered control for unwavering power delivery Advanced element management safeguards your generator’s efficiency Designed specifically for seamless integration with ONAN generator...
    $1,079.03
    $985.69
    Pre-Order Now
    Qty in Cart: 0
    Quantity:
    Price:
    $1,079.03
    $985.69
    Subtotal:
  • ONAN 102-1533 - 1021533 OIL COOLER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
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    ONAN 1021533 OIL COOLER Original ONAN/CUMMINS OEM part

    ONAN

    $907.52
    $829.02
    Cummins OIL COOLER 102-1533 Find the genuine Cummins OIL COOLER, SKU 102-1533, at our store for top-quality replacements. Engineered precisely for efficiency and durability, this essential part...
    $907.52
    $829.02
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $907.52
    $829.02
    Subtotal:
  • ONAN 333-0699 - 3330699 120 VOLT ENGINE COOLANT HEATER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
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    ONAN 3330699 120 VOLT ENGINE COOLANT HEATER Original ONAN/CUMMINS OEM part

    ONAN

    $888.79
    $811.91
    Empower your power system with unmatched precision and reliability. Designed to deliver optimal engine temperature control for superior cold weather starts. Engineered to extend the lifespan of your...
    $888.79
    $811.91
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $888.79
    $811.91
    Subtotal:
  • ONAN A029M345 - OIL COOLER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
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    ONAN A029M345 OIL COOLER Original ONAN/CUMMINS OEM part

    ONAN

    $564.62
    $515.78
    Cummins OIL COOLER A029M345 Discover the top-tier OIL COOLER (SKU: A029M345) by Cummins at our store. Our selection of authentic replacement parts ensures optimal performance for your outdoor...
    $564.62
    $515.78
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $564.62
    $515.78
    Subtotal:
  • ONAN 154-3285 - 1543285 CHARGE AIR COOLER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
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    ONAN 1543285 CHARGE AIR COOLER Original ONAN/CUMMINS OEM part

    ONAN

    $812.25
    $741.99
    Engineered Precision, Enduring Power Optimizes air charge temperature for enhanced engine efficiency Durable construction resists thermal stress and corrosion 100% genuine OEM ONAN component...
    $812.25
    $741.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $812.25
    $741.99
    Subtotal:
  • ONAN 130-5480 - 1305480 FUEL COOLER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
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    ONAN 1305480 FUEL COOLER Original ONAN/CUMMINS OEM part

    ONAN

    $773.10
    $706.23
    Precision engineered for seamless fuel system cooling Durable construction ensures long-lasting operation under demanding conditions Highly efficient cooling reduces fuel temperature for optimal...
    $773.10
    $706.23
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $773.10
    $706.23
    Subtotal:
  • ONAN 333-0690 - 3330690 120 VOLT ENGINE COOLANT HEATER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
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    ONAN 3330690 120 VOLT ENGINE COOLANT HEATER Original ONAN/CUMMINS OEM part

    ONAN

    $591.35
    $540.20
    Reliable heat-up technology for peak engine performance. Durable design enhances cold-weather starts and reduces engine wear. Genuine ONAN OEM component engineered for perfect compatibility. ONAN...
    $591.35
    $540.20
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $591.35
    $540.20
    Subtotal:
  • ONAN A030C168 - FUEL COOLER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
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    ONAN A030C168 FUEL COOLER Original ONAN/CUMMINS OEM part

    ONAN

    $534.66
    $488.41
    Precision-engineered for dependable cooling performance under demanding operational conditions Enhances fuel system longevity by maintaining optimal fuel temperature and preventing...
    $534.66
    $488.41
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $534.66
    $488.41
    Subtotal:
  • ONAN 186-6723 - 1866723 OIL COOLER ASSEMBLY Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
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    ONAN 1866723 OIL COOLER ASSEMBLY Original ONAN/CUMMINS OEM part

    ONAN

    $596.00
    $544.45
    Cummins OIL COOLER ASSEMBLY 186-6723 Discover the genuine Cummins OIL COOLER ASSEMBLY with SKU 186-6723 at our online store. Engineered to meet strict quality standards, this replacement part...
    $596.00
    $544.45
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $596.00
    $544.45
    Subtotal:
  • ONAN 193-0411 - 1930411 COOLANT LEVEL LOWER ACCESSORY KIT TEE Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
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    ONAN 1930411 COOLANT LEVEL LOWER ACCESSORY KIT TEE Original ONAN/CUMMINS OEM part

    ONAN

    $387.66
    $354.13
    Crafted for precision and endurance – your generator's best ally in coolant management. Engineered to maintain accurate coolant levels, reducing engine wear and enhancing operational reliability...
    $387.66
    $354.13
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $387.66
    $354.13
    Subtotal:
  • ONAN 333-0588-03 - 333058803 ENGINE COOLANT HEATER ONAN Genuine OEM Part - Original OEM part - Image 1
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    ONAN 333058803 ENGINE COOLANT HEATER ONAN Genuine OEM Part

    ONAN

    $439.12
    $401.13
    Guaranteed Genuine ONAN OEM part for utmost compatibility and durability Efficiently preheats engine coolant to support smooth starts in cold conditions Helps reduce engine wear and improves fuel...
    $439.12
    $401.13
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $439.12
    $401.13
    Subtotal:
  • ONAN 333-0704-01 - 333070401 ENGINE COOLANT HEATER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
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    ONAN 333070401 ENGINE COOLANT HEATER Original ONAN/CUMMINS OEM part

    ONAN

    $331.98
    $303.27
    Empower your Onan generator with precision-engineered reliability. Efficient preheating to ensure smooth cold starts and protect engine integrity. Durable design optimized for peak thermal...
    $331.98
    $303.27
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $331.98
    $303.27
    Subtotal:
  • ONAN A041F653 - COOLANT HEATER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
    Add to Cart

    ONAN A041F653 COOLANT HEATER Original ONAN/CUMMINS OEM part

    ONAN

    $328.70
    $300.27
    Power your performance with authentic precision Engineered to maintain optimal coolant temperature for maximum efficiency Ensures extended engine life by preventing cold starts and minimizing...
    $328.70
    $300.27
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $328.70
    $300.27
    Subtotal:
  • ONAN A041U753 - ENGINE COOLANT HEATER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
    Add to Cart

    ONAN A041U753 ENGINE COOLANT HEATER Original ONAN/CUMMINS OEM part

    ONAN

    $375.64
    $343.15
    Precision engineered for unwavering reliability. Enhances cold start performance by maintaining optimal engine temperature. Durable construction designed to withstand demanding operational...
    $375.64
    $343.15
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $375.64
    $343.15
    Subtotal:
  • ONAN 333-0541-02 - 333054102 240 VOLT ENGINE COOLANT HEATER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
    Add to Cart

    ONAN 333054102 240 VOLT ENGINE COOLANT HEATER Original ONAN/CUMMINS OEM part

    ONAN

    $1,057.04
    $965.60
    Precision-engineered to keep your engine warm and ready when it matters most Ensures rapid cold-weather starts and prevents engine wear Durability that supports continuous peak performance under...
    $1,057.04
    $965.60
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $1,057.04
    $965.60
    Subtotal:
  • ONAN 130-2781 - 1302781 ENGINE COOLANT OVERFLOW TANK Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
    Add to Cart

    ONAN 1302781 ENGINE COOLANT OVERFLOW TANK Original ONAN/CUMMINS OEM part

    ONAN

    $236.94
    $216.44
    Dependable Cooling Solution Engineered for Excellence High-capacity design to maintain optimum coolant levels and prevent engine overheating Durable construction ensures long service life even under...
    $236.94
    $216.44
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $236.94
    $216.44
    Subtotal:
  • ONAN 130-7779 - 1307779 4056038 COOL RAD RESERVIOR Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
    Add to Cart

    ONAN 1307779 4056038 COOL RAD RESERVIOR Original ONAN/CUMMINS OEM part

    ONAN

    $41.87
    $38.25
    Engineered to deliver uncompromising reliability and seamless integration Precision-crafted reservoir ensures optimal coolant flow and temperature regulation Durable construction resistant to wear...
    $41.87
    $38.25
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $41.87
    $38.25
    Subtotal:
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