Water Inlet Tubes

Genuine Water Inlet Tubes for Diesel Engines by Onan, Cummins, and Fleetguard

Maintain your diesel engine’s cooling efficiency with our authentic Water Inlet Tubes, engineered specifically for Onan, Cummins, and Fleetguard power engines. These components are essential for regulating coolant flow, preventing overheating, and ensuring reliable engine performance.

Water Inlet Tubes - Premium Quality Replacement Parts for Diesel Engines

Our Water Inlet Tubes collection features durable, precision-engineered tubes that guarantee an exact fit and seamless integration with your diesel engine’s cooling system. Choose from a variety of Onan, Cummins, and Fleetguard genuine parts designed to withstand high temperatures and corrosion.

  • Trusted Brands: Genuine Onan, Cummins, and Fleetguard water inlet tubes for optimal compatibility.
  • Durability: Made from high-quality materials to resist wear, corrosion, and heat.
  • Performance: Ensure consistent coolant flow for efficient engine temperature regulation and longevity.

Why Choose Our Water Inlet Tubes? We provide expertly sourced, genuine parts backed by trusted brands, ensuring your diesel engine operates at peak performance and reliability every time.

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  • CUMMINS 3976335 - WATER INLET TUBE - Original OEM part - Image 1
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    CUMMINS 3976335 WATER INLET TUBE Original OEM part

    CUMMINS

    $119.79
    $109.43
    Engineered Precision for Reliable Cooling Flow Durable Construction Guarantees Long-Term Service 100% Genuine OEM Cummins Part for Seamless Compatibility CUMMINS 3976335 WATER INLET TUBE – Empower...
    $119.79
    $109.43
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $119.79
    $109.43
    Subtotal:
  • CUMMINS 3974944 - COMPRESSOR WATER INLET TUBE - Original OEM part - Image 1
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    CUMMINS 3974944 COMPRESSOR WATER INLET TUBE Original OEM part

    CUMMINS

    $118.00
    $107.80
    Precision engineered to ensure seamless cooling system integration Durable construction resists wear and corrosion for long-lasting service Trusted, genuine OEM part from Cummins for guaranteed...
    $118.00
    $107.80
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $118.00
    $107.80
    Subtotal:
  • CUMMINS 3973388 - COMPRESSOR WATER INLET TUBE - Original OEM part - Image 1
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    CUMMINS 3973388 COMPRESSOR WATER INLET TUBE Original OEM part

    CUMMINS

    $49.60
    $45.31
    Engineered precision meets uncompromising durability in every CUMMINS component. Designed to maintain efficient compressor cooling and extend engine lifespan. High-grade materials ensure resistance...
    $49.60
    $45.31
    Add to Cart
    Qty in Cart: 0
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    Price:
    $49.60
    $45.31
    Subtotal:
  • CUMMINS 3971102 - WATER INLET TUBE - Original OEM part - Image 1
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    CUMMINS 3971102 WATER INLET TUBE Original OEM part

    CUMMINS

    $15.04
    $13.74
    Precision-engineered for seamless integration in Cummins power systems Durable construction provides long-lasting resistance to heat and pressure Maintains optimal coolant flow for engine efficiency...
    $15.04
    $13.74
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $15.04
    $13.74
    Subtotal:
  • CUMMINS 3970801 - WATER INLET TUBE - Original OEM part - Image 1
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    CUMMINS 3970801 WATER INLET TUBE Original OEM part

    CUMMINS

    $292.63
    $267.32
    Engineered for Excellence, Built for Endurance Precision Fit: Seamlessly integrates with your Cummins cooling system for optimal water flow and engine temperature regulation. Durable Construction:...
    $292.63
    $267.32
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $292.63
    $267.32
    Subtotal:
  • CUMMINS 3969225 - COMPRESSOR WATER INLET TUBE - Original OEM part - Image 1
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    CUMMINS 3969225 COMPRESSOR WATER INLET TUBE Original OEM part

    CUMMINS

    $267.42
    $244.29
    Precision-engineered for uncompromising reliability and seamless integration. Durable construction ensures consistent cooling for optimal engine performance. Maintains proper coolant flow,...
    $267.42
    $244.29
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $267.42
    $244.29
    Subtotal:
  • CUMMINS 3967906 - COMPRESSOR WATER INLET TUBE - Original OEM part - Image 1
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    CUMMINS 3967906 COMPRESSOR WATER INLET TUBE Original OEM part

    CUMMINS

    $501.42
    $458.04
    Engineered for Excellence: Experience the precision and reliability only a genuine Cummins OEM part can deliver. Durable Design: Crafted to withstand high temperatures and demanding engine...
    $501.42
    $458.04
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $501.42
    $458.04
    Subtotal:
  • CUMMINS 3966259 - WATER INLET TUBE - Original OEM part - Image 1
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    CUMMINS 3966259 WATER INLET TUBE Original OEM part

    CUMMINS

    $685.00
    $625.75
    Engineered Precision Meets Dependability Ensures Optimal Coolant Flow for Engine Longevity Constructed from High-Quality Materials for Durable Service Life Authentic OEM Part Directly From Cummins...
    $685.00
    $625.75
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $685.00
    $625.75
    Subtotal:
  • CUMMINS 3966258 - WATER INLET TUBE - Original OEM part - Image 1
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    CUMMINS 3966258 WATER INLET TUBE Original OEM part

    CUMMINS

    $783.95
    $716.14
    Engineered Precision for Optimal Cooling Efficiency Durable Construction for Long-term Reliability 100% Genuine OEM Cummins Quality Assurance CUMMINS 3966258 WATER INLET TUBE – Empower Your Engine...
    $783.95
    $716.14
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $783.95
    $716.14
    Subtotal:
  • CUMMINS 3964912 - WATER INLET TUBE - Original OEM part - Image 1
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    CUMMINS 3964912 WATER INLET TUBE Original OEM part

    CUMMINS

    $102.24
    $93.40
    Cummins 3964912 - WATER INLET TUBE MINS3964912 Discover the genuine quality of the Cummins 3964912 - WATER INLET TUBE, available exclusively at our store. With a focus on authenticity and...
    $102.24
    $93.40
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $102.24
    $93.40
    Subtotal:
  • CUMMINS 3964336 - COMPRESSOR WATER INLET TUBE - Original OEM part - Image 1
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    CUMMINS 3964336 COMPRESSOR WATER INLET TUBE Original OEM part

    CUMMINS

    $62.30
    $56.92
    Precision-engineered for peak performance and lasting dependability High-quality materials ensure optimal cooling system efficiency Durable design safeguards engine health under demanding...
    $62.30
    $56.92
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $62.30
    $56.92
    Subtotal:
  • CUMMINS 3964335 - COMPRESSOR WATER INLET TUBE - Original OEM part - Image 1
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    CUMMINS 3964335 COMPRESSOR WATER INLET TUBE Original OEM part

    CUMMINS

    $108.33
    $98.96
    Cummins 3964335 - COMPRESSOR WATER INLET TUBE MINS3964335 Ensure optimal performance of your equipment with the genuine Cummins 3964335 - COMPRESSOR WATER INLET TUBE, SKU MINS3964335. Our store is...
    $108.33
    $98.96
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $108.33
    $98.96
    Subtotal:
  • CUMMINS 3955465 - COMPRESSOR WATER INLET TUBE - Original OEM part
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    CUMMINS 3955465 COMPRESSOR WATER INLET TUBE Original OEM part

    CUMMINS

    $63.13
    $57.67
    Engineered for enduring reliability in every drop. Precision-crafted water inlet tube for optimal compressor cooling. Ensures consistent engine thermal management and peak efficiency. Certified OEM...
    $63.13
    $57.67
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $63.13
    $57.67
    Subtotal:
  • CUMMINS 3954649 - COMPRESSOR WATER INLET TUBE - Original OEM part - Image 1
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    CUMMINS 3954649 COMPRESSOR WATER INLET TUBE Original OEM part

    CUMMINS

    $442.96
    $404.64
    Engineered for excellence and built to last—trust what drives America’s power. Precision-engineered compressor water inlet tube ensures optimal coolant flow and prevents overheating. Durable...
    $442.96
    $404.64
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $442.96
    $404.64
    Subtotal:
  • CUMMINS 3945512 - COMPRESSOR WATER INLET TUBE - Original OEM part - Image 1
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    CUMMINS 3945512 COMPRESSOR WATER INLET TUBE Original OEM part

    CUMMINS

    $454.54
    $415.22
    Engineered for unmatched reliability and precision fit Ensures optimal cooling system efficiency and engine longevity Manufactured as a genuine OEM Cummins component for guaranteed...
    $454.54
    $415.22
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $454.54
    $415.22
    Subtotal:
  • CUMMINS 3944496 - TUBE CPR WATER INLET - Image 1
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    CUMMINS 3944496 COMPRESSOR WATER INLET TUBE Original OEM part

    CUMMINS

    $180.14
    $164.56
    Engineered Precision for Sustained Power Excellence Durable construction ensuring flawless coolant flow Designed for seamless integration with Cummins engines 100% Genuine OEM component ensuring...
    $180.14
    $164.56
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $180.14
    $164.56
    Subtotal:
  • CUMMINS 3943854 - COMPRESSOR WATER INLET TUBE - Original OEM part - Image 1
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    CUMMINS 3943854 COMPRESSOR WATER INLET TUBE Original OEM part

    CUMMINS

    $465.56
    $425.29
    Engineered Precision for Reliable Cooling Flow Durable Design to Withstand Rigorous Operating Conditions OEM Certified to Guarantee Compatibility and Performance Original Genuine Cummins Component...
    $465.56
    $425.29
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $465.56
    $425.29
    Subtotal:
  • CUMMINS 3943852 - COMPRESSOR WATER INLET TUBE - Original OEM part - Image 1
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    CUMMINS 3943852 COMPRESSOR WATER INLET TUBE Original OEM part

    CUMMINS

    $403.56
    $368.65
    Precision-engineered for optimal cooling efficiency and system longevity Durable material construction to withstand demanding operating conditions Genuine OEM Cummins part ensuring perfect fit and...
    $403.56
    $368.65
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $403.56
    $368.65
    Subtotal:
  • CUMMINS 3925588 - COMPRESSOR WATER INLET TUBE - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3925588 COMPRESSOR WATER INLET TUBE Original OEM part

    CUMMINS

    $108.15
    $98.79
    Engineered precision meets dependable performance Durable water inlet tube designed to optimize compressor cooling Precision-matched fit for seamless engine integration Manufactured as a genuine OEM...
    $108.15
    $98.79
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $108.15
    $98.79
    Subtotal:
  • CUMMINS 3919536 - COMPRESSOR WATER INLET TUBE - Original OEM part - Image 1
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    CUMMINS 3919536 COMPRESSOR WATER INLET TUBE Original OEM part

    CUMMINS

    $332.53
    $303.76
    Engineered Excellence for Unmatched Power Delivery High-Quality Construction Ensures Superior Cooling Efficiency Durable Design to Withstand Extreme Operational Conditions 100% Genuine OEM Cummins...
    $332.53
    $303.76
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $332.53
    $303.76
    Subtotal:
  • CUMMINS 3917680 - WATER INLET TUBE - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3917680 WATER INLET TUBE Original OEM part

    CUMMINS

    $1,524.67
    $1,392.79
    Precision engineered to keep your power running smoothly Robust design to withstand demanding engine cooling requirements Seamless fit and finish for guaranteed compatibility 100% genuine OEM part...
    $1,524.67
    $1,392.79
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $1,524.67
    $1,392.79
    Subtotal:
  • CUMMINS 3917424 - WATER INLET TUBE - Original OEM part - Image 1
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    CUMMINS 3917424 WATER INLET TUBE Original OEM part

    CUMMINS

    $270.13
    $246.76
    Cummins 3917424 - WATER INLET TUBE MINS3917424 Find the genuine 3917424 - WATER INLET TUBE by Cummins at our store. With a commitment to quality, we provide original replacement parts to ensure your...
    $270.13
    $246.76
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $270.13
    $246.76
    Subtotal:
  • CUMMINS 3907208 - WATER INLET TUBE - Original OEM part - Image 1
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    CUMMINS 3907208 WATER INLET TUBE Original OEM part

    CUMMINS

    $369.06
    $337.14
    Precision engineered for seamless integration Durable construction to withstand high-temperature coolant flow 100% genuine OEM part directly from Cummins CUMMINS 3907208 WATER INLET TUBE – Power...
    $369.06
    $337.14
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $369.06
    $337.14
    Subtotal:
  • CUMMINS 3697762 - WATER INLET TUBE - Original OEM part - Image 1
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    CUMMINS 3697762 WATER INLET TUBE Original OEM part

    CUMMINS

    $178.79
    $163.33
    Engineered for precision and durability, delivering unmatched cooling efficiency Constructed from premium materials to withstand demanding thermal cycles Genuine OEM part from Cummins, designed to...
    $178.79
    $163.33
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $178.79
    $163.33
    Subtotal:
  • CUMMINS 3697323 - WATER INLET TUBE - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3697323 WATER INLET TUBE Original OEM part

    CUMMINS

    $48.79
    $44.57
    Precision engineered for uncompromising performance Durable design safeguards your engine's cooling efficiency Corrosion-resistant materials ensure long-term reliability Certified OEM part directly...
    $48.79
    $44.57
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $48.79
    $44.57
    Subtotal:
  • CUMMINS 3697322 - WATER INLET TUBE - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3697322 WATER INLET TUBE Original OEM part

    CUMMINS

    $191.08
    $174.55
    Cummins 3697322 - WATER INLET TUBE MINS3697322 Discover the authentic 3697322 - WATER INLET TUBE by Cummins, SKU "MINS3697322," ensuring optimal performance for your outdoor equipment. Our online...
    $191.08
    $174.55
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $191.08
    $174.55
    Subtotal:
  • CUMMINS 3697183 - WATER INLET TUBE - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3697183 WATER INLET TUBE Original OEM part

    CUMMINS

    $164.88
    $150.62
    Cummins 3697183 - WATER INLET TUBE MINS3697183 Our store proudly offers the original 3697183 - WATER INLET TUBE by Cummins, ensuring top-notch quality and compatibility for your outdoor equipment...
    $164.88
    $150.62
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $164.88
    $150.62
    Subtotal:
  • CUMMINS 3695606 - COMPRESSOR WATER INLET TUBE - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3695606 COMPRESSOR WATER INLET TUBE Original OEM part

    CUMMINS

    $80.42
    $73.46
    Cummins 3695606 - COMPRESSOR WATER INLET TUBE MINS3695606 Finding the right replacement parts for your outdoor equipment can be a hassle, but look no further than our store for the original Cummins...
    $80.42
    $73.46
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $80.42
    $73.46
    Subtotal:
  • CUMMINS 3682811 - WATER INLET TUBE - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3682811 WATER INLET TUBE Original OEM part

    CUMMINS

    $179.45
    $163.93
    Precision-engineered durability for lasting performance Ensures optimal coolant flow to maintain engine health Crafted as an authentic OEM part from Cummins for guaranteed compatibility Trust the...
    $179.45
    $163.93
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $179.45
    $163.93
    Subtotal:
  • CUMMINS 3681022 - WATER INLET TUBE - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3681022 WATER INLET TUBE Original OEM part

    CUMMINS

    $1,258.97
    $1,150.07
    Engineered for unmatched durability and precision fit Optimizes coolant flow to maintain optimal engine temperatures Manufactured as a genuine OEM part by CUMMINS, assuring full compatibility and...
    $1,258.97
    $1,150.07
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $1,258.97
    $1,150.07
    Subtotal:
  • CUMMINS 3640346 - WATER INLET TUBE - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3640346 WATER INLET TUBE Original OEM part

    CUMMINS

    $645.00
    $589.21
    Engineered Precision for Unmatched Cooling Performance Durable Construction to Withstand Harsh Operating Conditions Certified Cummins OEM Part for Perfect Compatibility and Longevity Embrace...
    $645.00
    $589.21
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $645.00
    $589.21
    Subtotal:
  • CUMMINS 3633575 - COMPRESSOR WATER INLET TUBE - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3633575 COMPRESSOR WATER INLET TUBE Original OEM part

    CUMMINS

    $681.80
    $622.83
    Engineered for uncompromised cooling efficiency and durability Precision design maintains optimal compressor water flow Certified OEM part from Cummins ensuring exact fit and reliability CUMMINS...
    $681.80
    $622.83
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $681.80
    $622.83
    Subtotal:
  • CUMMINS 3630289 - WATER INLET TUBE - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3630289 WATER INLET TUBE Original OEM part

    CUMMINS

    $225.42
    $205.92
    Cummins 3630289 - WATER INLET TUBE MINS3630289 Discover top-notch quality with the Cummins 3630289 Water Inlet Tube, ensuring a perfect fit and peak performance for your outdoor equipment. Trust our...
    $225.42
    $205.92
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $225.42
    $205.92
    Subtotal:
  • CUMMINS 3630288 - WATER INLET TUBE - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3630288 WATER INLET TUBE Original OEM part

    CUMMINS

    $633.80
    $578.98
    Precision-engineered for peak cooling system performance Durable construction designed for long-term reliability Direct OEM replacement ensuring perfect fit and compatibility CUMMINS 3630288 WATER...
    $633.80
    $578.98
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $633.80
    $578.98
    Subtotal:
  • CUMMINS 3627548 - COMPRESSOR WATER INLET TUBE - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3627548 COMPRESSOR WATER INLET TUBE Original OEM part

    CUMMINS

    $481.10
    $439.49
    Engineered Precision for Reliable Cooling Robust construction to withstand demanding engine conditions Ensures optimal compressor water flow and temperature control 100% Genuine OEM Cummins...
    $481.10
    $439.49
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $481.10
    $439.49
    Subtotal:
  • CUMMINS 3418341 - WATER INLET TUBE - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3418341 WATER INLET TUBE Original OEM part

    CUMMINS

    $2,325.74
    $2,124.56
    Cummins 3418341 - WATER INLET TUBE MINS3418341 Find the genuine Cummins 3418341 - WATER INLET TUBE at our store. Crafted with precision and quality materials, this replacement part ensures reliable...
    $2,325.74
    $2,124.56
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $2,325.74
    $2,124.56
    Subtotal:
  • CUMMINS 3418340 - WATER INLET TUBE - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3418340 WATER INLET TUBE Original OEM part

    CUMMINS

    $365.10
    $333.52
    Engineered for lasting resilience, built to keep your power running strong. Precisely molded to provide seamless water flow and prevent leaks. Crafted from premium materials to withstand harsh...
    $365.10
    $333.52
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $365.10
    $333.52
    Subtotal:
  • CUMMINS 3411873 - WATER INLET TUBE - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3411873 WATER INLET TUBE Original OEM part

    CUMMINS

    $433.80
    $396.28
    Engineered to keep your power running smoothly, the CUMMINS 3411873 WATER INLET TUBE ensures nothing stands in the way of reliability. Designed for optimal coolant flow, this tube safeguards your...
    $433.80
    $396.28
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $433.80
    $396.28
    Subtotal:
  • CUMMINS 3400563 - COMPRESSOR WATER INLET TUBE - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3400563 COMPRESSOR WATER INLET TUBE Original OEM part

    CUMMINS

    $74.10
    $67.70
    Precision engineered to keep your Cummins engine running at peak performance Durable compressor water inlet tube designed for optimal cooling efficiency Original equipment manufacturer (OEM) part...
    $74.10
    $67.70
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $74.10
    $67.70
    Subtotal:
  • CUMMINS 3355519 - COMPRESSOR WATER INLET TUBE - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3355519 COMPRESSOR WATER INLET TUBE Original OEM part

    CUMMINS

    $110.80
    $101.22
    Precision engineered to keep your Cummins system operating at peak efficiency Durable construction ensuring optimal coolant flow and engine protection Authentic OEM part delivering guaranteed fit...
    $110.80
    $101.22
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $110.80
    $101.22
    Subtotal:
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