Engine Coolant Heaters

Engine Coolant Heaters

Genuine Engine Coolant Heaters for Onan, Cummins & Fleetguard Diesel Engines

Optimize your diesel engine's cold start reliability with our premium Engine Coolant Heaters. Designed specifically for Onan, Cummins, and Fleetguard power engines, these genuine replacement parts ensure rapid engine warming, reduce wear, and improve fuel efficiency during startup.

Engine Coolant Heaters – Genuine Quality for Reliable Performance

Our collection features high-quality coolant heaters engineered to maintain optimal engine temperature in cold environments. These heating elements are essential for extending engine life and minimizing downtime in heavy-duty diesel applications.

  • Trusted Brands: Authentic parts from Onan, Cummins, and Fleetguard ensure seamless compatibility and superior performance.
  • Durable Construction: Built to withstand harsh conditions, guaranteeing long-lasting reliability.
  • Enhanced Engine Efficiency: Enables quicker warm-up times, reducing fuel consumption and emissions.

Why Choose Our Engine Coolant Heaters?

Choose our genuine Engine Coolant Heaters for unmatched quality, expert support, and fast shipping—ensuring your diesel engines perform at their best, every time.

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • ONAN 333-0588-01 - 333058801 ENGINE COOLANT HEATER ONAN Genuine OEM Part - Original OEM part - Image 1
    Add to Cart

    ONAN 333058801 ENGINE COOLANT HEATER ONAN Genuine OEM Part

    ONAN

    $435.27
    $397.62
    Authentic ONAN OEM component crafted for precise fit and durability Ensures rapid engine warm-up in low temperatures to prevent wear Enhances fuel efficiency and reduces cold-start...
    $435.27
    $397.62
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $435.27
    $397.62
    Subtotal:
  • ONAN 333-0541-01 - 333054101 ENGINE COOLANT HEATER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
    Add to Cart

    ONAN 333054101 ENGINE COOLANT HEATER Original ONAN/CUMMINS OEM part

    ONAN

    $1,038.60
    $948.77
    Engineered precision powering dependable warmth Maintains optimal engine temperature for cold starts Improves fuel efficiency and reduces emissions 100% genuine ONAN OEM component designed for...
    $1,038.60
    $948.77
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $1,038.60
    $948.77
    Subtotal:
  • ONAN 333-0729-02 - 333072902 ENGINE COOLENT HEATER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
    Add to Cart

    ONAN 333072902 ENGINE COOLENT HEATER Original ONAN/CUMMINS OEM part

    ONAN

    $774.13
    $707.17
    Experience unmatched engine warmth and efficiency with the ONAN 333-0729-02 ENGINE COOLENT HEATER. Ensures rapid engine temperature stabilization for smoother starts and reduced wear...
    $774.13
    $707.17
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $774.13
    $707.17
    Subtotal:
  • ONAN 333-0588-04 - 333058804 208/2 ENGINE COOLANT HEATER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
    Add to Cart

    ONAN 333058804 208/2 ENGINE COOLANT HEATER Original ONAN/CUMMINS OEM part

    ONAN

    $615.81
    $562.54
    Precision-engineered to maintain dependable engine warmth and enhance cold-start performance. Delivers rapid, consistent heating for improved fuel efficiency and reduced emissions. Designed...
    $615.81
    $562.54
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $615.81
    $562.54
    Subtotal:
  • ONAN 333-0588-02 - 333058802 ENGINE COOLANT HEATER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
    Add to Cart

    ONAN 333058802 ENGINE COOLANT HEATER Original ONAN/CUMMINS OEM part

    ONAN

    $741.44
    $677.30
    Cummins ENGINE COOLANT HEATER 333-0588-02 Sourced directly from Cummins, the ENGINE COOLANT HEATER (SKU: 333-0588-02) guarantees a precise fit and optimum performance for your outdoor equipment. Our...
    $741.44
    $677.30
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $741.44
    $677.30
    Subtotal:
  • ONAN A048R454 - ENGINE COOLANT HEATER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
    Add to Cart

    ONAN A048R454 ENGINE COOLANT HEATER Original ONAN/CUMMINS OEM part

    ONAN

    $341.84
    $312.27
    Precision engineered for seamless engine warmth and performance Enhances cold-start reliability and reduces engine wear Maintains optimal coolant temperature for efficient operation Certified OEM...
    $341.84
    $312.27
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $341.84
    $312.27
    Subtotal:
  • ONAN A048R449 - ENGINE COOLANT HEATER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
    Add to Cart

    ONAN A048R449 ENGINE COOLANT HEATER Original ONAN/CUMMINS OEM part

    ONAN

    $342.50
    $312.88
    Precision heating for peak performance under any temperature. Ensures rapid engine warm-up to reduce wear and emissions. Built to exact Cummins Onan specifications for seamless integration. OEM...
    $342.50
    $312.88
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $342.50
    $312.88
    Subtotal:
  • ONAN 333-0729-01 - 333072901 ENGINE COOLANT HEATER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
    Add to Cart

    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
    Add to Cart

    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 333-0699 - 3330699 120 VOLT ENGINE COOLANT HEATER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
    Add to Cart

    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 333-0690 - 3330690 120 VOLT ENGINE COOLANT HEATER Original ONAN/CUMMINS OEM part - Original OEM part - Image 1
    Add to Cart

    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 333-0588-03 - 333058803 ENGINE COOLANT HEATER ONAN Genuine OEM Part - Original OEM part - Image 1
    Add to Cart

    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
    Add to Cart

    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 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:
  • Total: items /

Adding your products to cart

Other Fuel System Parts

We'll take care of you

Availability

Buy Products In Stock with Fast Shipping.

Best Deal

Shop at unbeatable prices and find discounts and offers.

Customer Service

Call, email or chat with an Expert.

Security

100% Secure Checkout with several certificated payment methods.