Heat Exchangers

Genuine Heat Exchangers for Diesel Engines by Onan, Cummins & Fleetguard

Maintain peak engine performance with our authentic Heat Exchangers, designed exclusively for Onan, Cummins, and Fleetguard diesel power engines. These heat transfer units efficiently regulate engine temperature, preventing overheating and ensuring reliable operation under heavy workloads.

Heat Exchangers for Efficient Thermal Management | Diesel Engines Parts

Our collection features premium heat exchangers that deliver superior cooling performance and durability. Whether you need plate, shell-and-tube, or compact heat exchangers, each product is engineered to meet stringent OEM standards, providing excellent corrosion resistance and longevity.

  • Genuine Quality: Certified original parts from trusted brands for guaranteed compatibility and performance.
  • Enhanced Durability: Built to withstand harsh operating conditions in diesel power engines.
  • Optimized Design: Efficient heat transfer to maintain engine temperature and improve fuel efficiency.

Why Choose Our Heat Exchangers? We offer authentic, expertly sourced heat exchangers that ensure your diesel engines run cooler, longer, and more efficiently—backed by trusted Onan, Cummins, and Fleetguard quality.

  • Product
  • Qty in Cart
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  • ONAN 130-5138 - 1305138 HEAT EXCHANGER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
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    ONAN 1305138 HEAT EXCHANGER Original ONAN/CUMMINS OEM part

    ONAN

    $621.77
    $567.99
    Engineered for reliability and peak thermal efficiency. Designed to maintain optimal engine temperature, reducing wear. Guaranteed genuine OEM quality from ONAN for perfect fit and durability. ONAN...
    $621.77
    $567.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $621.77
    $567.99
    Subtotal:
  • CUMMINS 5289417 - HEAT EXCHANGER - Original OEM part - Image 1
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    CUMMINS 5289417 HEAT EXCHANGER Original OEM part

    CUMMINS

    $7,144.60
    $6,526.60
    Precision crafted to power your engine’s reliability Exceptional heat transfer efficiency ensuring optimal engine temperature control Durable design that withstands rigorous operating...
    $7,144.60
    $6,526.60
    Add to Cart
    Qty in Cart: 0
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    Price:
    $7,144.60
    $6,526.60
    Subtotal:
  • CUMMINS 4942761 - HEAT EXCHANGER - Original OEM part - Image 1
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    CUMMINS 4942761 HEAT EXCHANGER Original OEM part

    CUMMINS

    $7,991.53
    $7,300.26
    Precision-engineered to elevate your Cummins system’s efficiency. Advanced thermal management for sustained engine reliability. Durable construction delivering long-lasting performance under...
    $7,991.53
    $7,300.26
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $7,991.53
    $7,300.26
    Subtotal:
  • CUMMINS 4914904 - HEAT EXCHANGER - Original OEM part - Image 1
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    CUMMINS 4914904 HEAT EXCHANGER Original OEM part

    CUMMINS

    $6,549.95
    $5,983.38
    Precision-engineered to uphold Cummins’ legacy of power and dependability. Optimized thermal management for superior engine protection. Robust construction ensuring reliable heat exchange even under...
    $6,549.95
    $5,983.38
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $6,549.95
    $5,983.38
    Subtotal:
  • CUMMINS 4302654 - HEAT EXCHANGER - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4302654 HEAT EXCHANGER Original OEM part

    CUMMINS

    $7,144.60
    $6,526.60
    Cummins 4302654 - HEAT EXCHANGER MINS4302654 Browse no further for original replacement parts; find the top-of-the-line 4302654 - HEAT EXCHANGER sourced directly from Cummins at our store. With SKU...
    $7,144.60
    $6,526.60
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $7,144.60
    $6,526.60
    Subtotal:
  • CUMMINS 4058345 - HEAT EXCHANGER - Original OEM part - Image 1
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    CUMMINS 4058345 HEAT EXCHANGER Original OEM part

    CUMMINS

    $5,798.78
    $5,297.19
    Uncompromising durability and engineered precision for optimal thermal management. Efficient heat exchange reduces engine wear and boosts overall system reliability. 100% genuine OEM part from...
    $5,798.78
    $5,297.19
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $5,798.78
    $5,297.19
    Subtotal:
  • CUMMINS 4058308 - HEAT EXCHANGER - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4058308 HEAT EXCHANGER Original OEM part

    CUMMINS

    $7,351.55
    $6,715.64
    Precision engineered to uphold Cummins’ legacy of power and reliability. Advanced thermal management ensures optimal engine temperature control. Robust construction designed to withstand harsh...
    $7,351.55
    $6,715.64
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $7,351.55
    $6,715.64
    Subtotal:
  • CUMMINS 4020101 - HEAT EXCHANGER - Original OEM part - Image 1
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    CUMMINS 4020101 HEAT EXCHANGER Original OEM part

    CUMMINS

    $5,329.78
    $4,868.76
    Precision-engineered for unwavering performance and endurance Maximizes engine cooling to prevent overheating and maintain operational stability Durable construction ensures corrosion resistance and...
    $5,329.78
    $4,868.76
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $5,329.78
    $4,868.76
    Subtotal:
  • CUMMINS 4019958 - HEAT EXCHANGER - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4019958 HEAT EXCHANGER Original OEM part

    CUMMINS

    $5,329.78
    $4,868.76
    Engineered Excellence for Peak Generator Performance Durable Heat Exchange Design Optimized for Maximum Thermal Efficiency Precision-Matched OEM Part to Maintain Cummins Engine Integrity ...
    $5,329.78
    $4,868.76
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $5,329.78
    $4,868.76
    Subtotal:
  • CUMMINS 4019855 - HEAT EXCHANGER - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4019855 HEAT EXCHANGER Original OEM part

    CUMMINS

    $6,201.24
    $5,664.83
    Precision engineered for enduring power and seamless integration. Efficient heat transfer design maximizes engine cooling and fuel economy. Robust construction ensures superior resistance to...
    $6,201.24
    $5,664.83
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $6,201.24
    $5,664.83
    Subtotal:
  • CUMMINS 3978734 - HEAT EXCHANGER - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3978734 HEAT EXCHANGER Original OEM part

    CUMMINS

    $5,741.06
    $5,244.46
    Precision-engineered heat exchange for superior engine cooling performance Robust design to withstand demanding operational conditions and extend engine life 100% genuine OEM part from Cummins...
    $5,741.06
    $5,244.46
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $5,741.06
    $5,244.46
    Subtotal:
  • CUMMINS 3930791 - HEAT EXCHANGER - Original OEM part - Image 1
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    CUMMINS 3930791 HEAT EXCHANGER Original OEM part

    CUMMINS

    $5,305.50
    $4,846.58
    Precision-crafted for uncompromising power efficiency and endurance Advanced thermal management to protect your engine and extend service life Designed exclusively by Cummins for seamless OEM...
    $5,305.50
    $4,846.58
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $5,305.50
    $4,846.58
    Subtotal:
  • CUMMINS 3912145 - HEAT EXCHANGER - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3912145 HEAT EXCHANGER Original OEM part

    CUMMINS

    $5,947.25
    $5,432.81
    Cummins 3912145 - HEAT EXCHANGER MINS3912145 Find the top-quality 3912145 - HEAT EXCHANGER from Cummins right here. Our store is your ultimate destination for original replacement parts. With fast...
    $5,947.25
    $5,432.81
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $5,947.25
    $5,432.81
    Subtotal:
  • CUMMINS 3910583 - HEAT EXCHANGER - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3910583 HEAT EXCHANGER Original OEM part

    CUMMINS

    $5,278.54
    $4,821.95
    Experience unmatched durability and precise fit engineered exclusively for Cummins power systems Efficient thermal management to maximize engine life and maintain peak performance under demanding...
    $5,278.54
    $4,821.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $5,278.54
    $4,821.95
    Subtotal:
  • CUMMINS 3910582 - HEAT EXCHANGER - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3910582 HEAT EXCHANGER Original OEM part

    CUMMINS

    $4,835.13
    $4,416.89
    Trusted Power, Proven Precision: Rely on Cummins engineering excellence to keep your systems running strong. Superior Heat Transfer Efficiency: Designed to optimize engine cooling and maintain...
    $4,835.13
    $4,416.89
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $4,835.13
    $4,416.89
    Subtotal:
  • ONAN 130-6561 - 1306561 HEAT EXCHANGER FUEL COOL Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
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    ONAN 1306561 HEAT EXCHANGER FUEL COOL Original ONAN/CUMMINS OEM part

    ONAN

    $14,815.93
    $13,534.35
    Cummins HEAT EXCHANGER FUEL COOL 130-6561 Find the genuine Cummins HEAT EXCHANGER FUEL COOL (SKU: 130-6561) at our store, the ultimate destination for quality replacement parts. With our extensive...
    $14,815.93
    $13,534.35
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $14,815.93
    $13,534.35
    Subtotal:
  • ONAN 130-6273 - 1306273 RE504480 HEAT EXCHANGER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
    Add to Cart

    ONAN 1306273 RE504480 HEAT EXCHANGER Original ONAN/CUMMINS OEM part

    ONAN

    $5,470.27
    $4,997.09
    Cummins RE504480 HEAT EXCHANGER 130-6273 Find the authentic Cummins RE504480 HEAT EXCHANGER with SKU 130-6273 at competitive pricing in our store. Our commitment to quality ensures that you receive...
    $5,470.27
    $4,997.09
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $5,470.27
    $4,997.09
    Subtotal:
  • ONAN 130-6267 - 1306267 RE504481 HEAT EXCHANGER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
    Add to Cart

    ONAN 1306267 RE504481 HEAT EXCHANGER Original ONAN/CUMMINS OEM part

    ONAN

    $4,307.05
    $3,934.49
    Cummins RE504481 HEAT EXCHANGER 130-6267 Find the original RE504481 HEAT EXCHANGER by Cummins with SKU 130-6267 at our store. Ensure top-notch quality and compatibility for your outdoor equipment...
    $4,307.05
    $3,934.49
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $4,307.05
    $3,934.49
    Subtotal:
  • ONAN 130-7177 - 1307177 HEAT EXCHANGER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
    Add to Cart

    ONAN 1307177 HEAT EXCHANGER Original ONAN/CUMMINS OEM part

    ONAN

    $5,505.59
    $5,029.36
    Precision-engineered to keep your power running smoothly Optimizes engine cooling for extended generator life Durable construction designed to withstand demanding conditions 100% genuine OEM ONAN...
    $5,505.59
    $5,029.36
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $5,505.59
    $5,029.36
    Subtotal:
  • ONAN 130-1337 - 1301337 HEAT EXCHANGER KIT Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
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    ONAN 1301337 HEAT EXCHANGER KIT Original ONAN/CUMMINS OEM part

    ONAN

    $1,479.28
    $1,351.33
    Engineered to excel under pressure—the ONAN 130-1337 HEAT EXCHANGER KIT safeguards your generator’s vital cooling system. Enhances thermal efficiency to maintain optimal engine temperature,...
    $1,479.28
    $1,351.33
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $1,479.28
    $1,351.33
    Subtotal:
  • ONAN 121-0127 - 1210127 HEAT EXCHANGER HYDRAULIC Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
    Add to Cart

    ONAN 1210127 HEAT EXCHANGER HYDRAULIC Original ONAN/CUMMINS OEM part

    ONAN

    $2,649.19
    $2,420.04
    Engineered for Excellence in Every Connection Efficient Thermal Regulation ensures your hydraulic system runs cooler and more reliably. Robust Construction made to withstand demanding operational...
    $2,649.19
    $2,420.04
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $2,649.19
    $2,420.04
    Subtotal:
  • ONAN 130-7986-02 - 130798602 HEAT EXCHANGER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
    Add to Cart

    ONAN 130798602 HEAT EXCHANGER Original ONAN/CUMMINS OEM part

    ONAN

    $1,966.17
    $1,796.10
    Engineered precision meets dependable power flow. Optimal heat transfer capability for enhanced engine cooling. Durable construction crafted to withstand demanding generator environments. 100%...
    $1,966.17
    $1,796.10
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $1,966.17
    $1,796.10
    Subtotal:
  • ONAN 130-1189 - 1301189 HEAT EXCHANGER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
    Add to Cart

    ONAN 1301189 HEAT EXCHANGER Original ONAN/CUMMINS OEM part

    ONAN

    $1,323.58
    $1,209.09
    Precision engineered for lasting generator performance Efficient heat transfer designed to protect engine components Durability tested to meet stringent Cummins/Onan standards Certified genuine OEM...
    $1,323.58
    $1,209.09
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $1,323.58
    $1,209.09
    Subtotal:
  • ONAN 130-7489-02 - 130748902 HEAT EXCHANGER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
    Add to Cart

    ONAN 130748902 HEAT EXCHANGER Original ONAN/CUMMINS OEM part

    ONAN

    $1,629.27
    $1,488.34
    Power your peace of mind with authentic ONAN precision. Optimized heat transfer design preserves engine efficiency and prevents overheating. Durable corrosion-resistant construction extends service...
    $1,629.27
    $1,488.34
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $1,629.27
    $1,488.34
    Subtotal:
  • ONAN 130-2343 - 1302343 HEAT EXCHANGER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
    Add to Cart

    ONAN 1302343 HEAT EXCHANGER Original ONAN/CUMMINS OEM part

    ONAN

    $1,424.99
    $1,301.73
    Empower your generator's heart with the precision of genuine ONAN engineering. Engineered to efficiently transfer heat, maintaining optimum engine temperature under all load conditions. Durable...
    $1,424.99
    $1,301.73
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $1,424.99
    $1,301.73
    Subtotal:
  • ONAN 130-6733-02 - 130673302 HEAT EXCHANGER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
    Add to Cart

    ONAN 130673302 HEAT EXCHANGER Original ONAN/CUMMINS OEM part

    ONAN

    $1,258.45
    $1,149.59
    Precision-engineered for seamless integration and lasting durability Optimizes thermal management to enhance engine performance Resilient construction designed to withstand demanding generator...
    $1,258.45
    $1,149.59
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $1,258.45
    $1,149.59
    Subtotal:
  • ONAN 130-5491 - 1305491 HEAT EXCHANGER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
    Add to Cart

    ONAN 1305491 HEAT EXCHANGER Original ONAN/CUMMINS OEM part

    ONAN

    $597.69
    $545.99
    Cummins HEAT EXCHANGER 130-5491 Our online store proudly presents the original "HEAT EXCHANGER" by Cummins, with the SKU "130-5491." Engineered to deliver top performance and reliability, this...
    $597.69
    $545.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $597.69
    $545.99
    Subtotal:
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