Unions - Reliable Cummins Engine Connections

Genuine Cummins Engine Unions - Reliable Connections for Diesel Engines

Discover our premium range of unions, engineered for Cummins diesel engines and compatible with Onan and Fleetguard power systems. These genuine unions ensure secure, leak-proof connections that maintain engine integrity and performance under demanding conditions.

Unions - Reliable Cummins Engine Connections for Optimal Power

Our unions are crafted with precision to provide strong, durable links between engine components, minimizing downtime and boosting efficiency. Designed to meet Cummins’ rigorous standards, they offer exceptional resistance to vibration and thermal stress.

  • Genuine Quality: Certified Cummins-approved unions for trusted engine connections.
  • Durability: Robust materials resist corrosion and wear for long-lasting service.
  • Compatibility: Engineered to fit Onan, Cummins, and Fleetguard engines perfectly.
  • Easy Installation: Designed for seamless integration, reducing maintenance time.

Why Choose Our Unions?

Choose our genuine Cummins unions for unmatched reliability, expert craftsmanship, and compatibility that ensures your diesel engine operates at peak performance every time.

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  • CUMMINS 4096998 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 4096998 MALE UNION Original OEM part

    CUMMINS

    $157.72
    $144.07
    Engineered for Excellence and Endurance Seamless Fit and Durable Construction: Guarantees optimal connection integrity in critical engine systems. Corrosion-Resistant Design: Built to withstand...
    $157.72
    $144.07
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    Qty in Cart: 0
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    Price:
    $157.72
    $144.07
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  • CUMMINS 4096997 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 4096997 MALE UNION Original OEM part

    CUMMINS

    $274.38
    $250.65
    Engineered to excel where power meets precision Robust connection integrity for optimal system performance Corrosion-resistant design ensures extended service life 100% genuine Cummins OEM component...
    $274.38
    $250.65
    Add to Cart
    Qty in Cart: 0
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    Price:
    $274.38
    $250.65
    Subtotal:
  • CUMMINS 4086294 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 4086294 MALE UNION Original OEM part

    CUMMINS

    $510.30
    $466.16
    Precision engineered for uncompromising performance Durable construction designed to withstand demanding conditions Seamless integration with Cummins engines for optimal reliability 100% genuine OEM...
    $510.30
    $466.16
    Add to Cart
    Qty in Cart: 0
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    Price:
    $510.30
    $466.16
    Subtotal:
  • CUMMINS 4079154 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 4079154 MALE UNION Original OEM part

    CUMMINS

    $64.53
    $58.95
    Precision engineered to uphold Cummins' legacy of reliable power solutions. Exceptional sealing performance ensuring leak-free connections under high-pressure conditions. Durable construction...
    $64.53
    $58.95
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    Qty in Cart: 0
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    $64.53
    $58.95
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  • CUMMINS 4078977 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 4078977 MALE UNION Original OEM part

    CUMMINS

    $75.34
    $68.82
    Precision-engineered for excellence in power systems Durable male union design for leak-free connections Corrosion-resistant materials for long service life Guaranteed genuine Cummins OEM part,...
    $75.34
    $68.82
    Add to Cart
    Qty in Cart: 0
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    Price:
    $75.34
    $68.82
    Subtotal:
  • CUMMINS 4078975 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 4078975 MALE UNION Original OEM part

    CUMMINS

    $68.54
    $62.61
    Cummins 4078975 - MALE UNION MINS4078975 Find top-quality 4078975 - MALE UNION from Cummins here at our online store. Trust in our commitment to offering original replacement parts for your outdoor...
    $68.54
    $62.61
    Add to Cart
    Qty in Cart: 0
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    Price:
    $68.54
    $62.61
    Subtotal:
  • CUMMINS 4076832 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 4076832 MALE UNION Original OEM part

    CUMMINS

    $165.75
    $151.41
    Precision engineered for seamless power connectivity Robust construction ensures lasting durability under extreme conditions Corrosion-resistant design maximizes system reliability and safety 100%...
    $165.75
    $151.41
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $165.75
    $151.41
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  • CUMMINS 4076590 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 4076590 MALE UNION Original OEM part

    CUMMINS

    $79.10
    $72.26
    Engineered for perfection: Experience seamless integration and peak efficiency with this essential Cummins component. Durable construction: Designed to withstand rigorous operating conditions,...
    $79.10
    $72.26
    Add to Cart
    Qty in Cart: 0
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    $79.10
    $72.26
    Subtotal:
  • CUMMINS 4070268 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 4070268 MALE UNION Original OEM part

    CUMMINS

    $155.28
    $141.85
    Cummins 4070268 - MALE UNION MINS4070268 Our store is your go-to source for authentic Cummins 4070268 - MALE UNION. Crafted with precision, this replacement part ensures compatibility and durability...
    $155.28
    $141.85
    Add to Cart
    Qty in Cart: 0
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    Price:
    $155.28
    $141.85
    Subtotal:
  • CUMMINS 4068148 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 4068148 MALE UNION Original OEM part

    CUMMINS

    $195.98
    $179.03
    Precision engineered for seamless integration within Cummins power systems. Sturdy construction designed to withstand high-pressure conditions and ensure leak-free connections. Robust corrosion...
    $195.98
    $179.03
    Add to Cart
    Qty in Cart: 0
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    Price:
    $195.98
    $179.03
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  • CUMMINS 4067813 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 4067813 MALE UNION Original OEM part

    CUMMINS

    $43.86
    $40.07
    Precision engineered for uncompromising reliability Designed to maintain peak engine and system efficiency Durability and perfect fit guaranteed with genuine Cummins OEM quality CUMMINS 4067813...
    $43.86
    $40.07
    Add to Cart
    Qty in Cart: 0
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    Price:
    $43.86
    $40.07
    Subtotal:
  • CUMMINS 4065547 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 4065547 MALE UNION Original OEM part

    CUMMINS

    $424.50
    $387.79
    Precision-engineered for seamless fit and optimal function Designed to maintain system integrity under demanding operational conditions Durability crafted into every component for long service...
    $424.50
    $387.79
    Add to Cart
    Qty in Cart: 0
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    $424.50
    $387.79
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  • CUMMINS 4062614 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 4062614 MALE UNION Original OEM part

    CUMMINS

    $175.16
    $160.01
    Engineered Reliability for Ultimate Power Precision-crafted for seamless integration and leak-free connections Durable construction ensures long-lasting service even under demanding...
    $175.16
    $160.01
    Add to Cart
    Qty in Cart: 0
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    $175.16
    $160.01
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  • CUMMINS 4062608 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 4062608 MALE UNION Original OEM part

    CUMMINS

    $181.78
    $166.06
    Unmatched Engineering Integrity for Every Connection Durable and Precision-Machined for Reliable Sealing Under Pressure Crafted Specifically for Seamless Compatibility with Cummins Engines This is a...
    $181.78
    $166.06
    Add to Cart
    Qty in Cart: 0
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    Price:
    $181.78
    $166.06
    Subtotal:
  • CUMMINS 4062097 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 4062097 MALE UNION Original OEM part

    CUMMINS

    $50.66
    $46.28
    Precision-engineered for seamless integration Durable construction designed to withstand rigorous conditions Genuine Cummins OEM ensuring uncompromised reliability Trusted brand authenticity for...
    $50.66
    $46.28
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $50.66
    $46.28
    Subtotal:
  • CUMMINS 4061143 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 4061143 MALE UNION Original OEM part

    CUMMINS

    $46.00
    $42.03
    Precision engineered to power your system seamlessly. Robust design for long-lasting durability under demanding conditions. Ensures tight, leak-free connections for maximum operational safety...
    $46.00
    $42.03
    Add to Cart
    Qty in Cart: 0
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    Price:
    $46.00
    $42.03
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  • CUMMINS 4058079 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 4058079 MALE UNION Original OEM part

    CUMMINS

    $104.47
    $95.44
    Precision engineered for uncompromising reliability in every connection. Robust construction delivers exceptional durability under demanding conditions. Corrosion-resistant finish ensures longevity...
    $104.47
    $95.44
    Add to Cart
    Qty in Cart: 0
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    Price:
    $104.47
    $95.44
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  • CUMMINS 4023104 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 4023104 MALE UNION Original OEM part

    CUMMINS

    $22.20
    $20.28
    Precision engineered for superior durability and fit Ensures leak-proof performance under extreme conditions 100% genuine Cummins OEM component for guaranteed reliability CUMMINS 4023104 MALE...
    $22.20
    $20.28
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $22.20
    $20.28
    Subtotal:
  • CUMMINS 4022844 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 4022844 MALE UNION Original OEM part

    CUMMINS

    $50.69
    $46.31
    Engineered Precision to Empower Every Connection Robust construction ensures leak-free operation under all conditions High-grade materials deliver exceptional corrosion resistance and...
    $50.69
    $46.31
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $50.69
    $46.31
    Subtotal:
  • CUMMINS 4022838 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 4022838 MALE UNION Original OEM part

    CUMMINS

    $31.50
    $28.78
    Cummins 4022838 - MALE UNION MINS4022838 Discover the unparalleled quality and reliability of the Cummins 4022838 - MALE UNION available at our store. Crafted with precision to ensure exact fit and...
    $31.50
    $28.78
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $31.50
    $28.78
    Subtotal:
  • CUMMINS 4022703 - UNION MALE - Image 1
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    CUMMINS 4022703 MALE UNION Original OEM part

    CUMMINS

    $35.15
    $32.11
    Engineered to power your performance with uncompromising quality Precision-crafted male union designed for perfect fit and leak-free operation Durable corrosion-resistant material enhances longevity...
    $35.15
    $32.11
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $35.15
    $32.11
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  • CUMMINS 4016669 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 4016669 MALE UNION Original OEM part

    CUMMINS

    $29.64
    $27.08
    Designed to deliver uncompromising precision and durability for your Cummins power system. Constructed with premium materials for extended service life under demanding conditions. Ensures seamless...
    $29.64
    $27.08
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $29.64
    $27.08
    Subtotal:
  • CUMMINS 4016277 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 4016277 MALE UNION Original OEM part

    CUMMINS

    $82.50
    $75.37
    Cummins 4016277 - MALE UNION MINS4016277 Find the reliable 4016277 - MALE UNION by Cummins at our store for top-notch outdoor equipment solutions. The original Cummins part with SKU MINS4016277...
    $82.50
    $75.37
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $82.50
    $75.37
    Subtotal:
  • CUMMINS 4009971 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 4009971 MALE UNION Original OEM part

    CUMMINS

    $401.43
    $366.70
    Precision-engineered compatibility for seamless integration Durable construction to withstand demanding operational conditions Certified genuine OEM Cummins component ensuring peak...
    $401.43
    $366.70
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $401.43
    $366.70
    Subtotal:
  • CUMMINS 4007121 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 4007121 MALE UNION Original OEM part

    CUMMINS

    $326.03
    $297.83
    Precision engineered for uninterrupted power. Robust design ensures leak-free connections under all operating conditions. Crafted exclusively by Cummins as a genuine OEM component to match original...
    $326.03
    $297.83
    Add to Cart
    Qty in Cart: 0
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    Price:
    $326.03
    $297.83
    Subtotal:
  • CUMMINS 4007010 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 4007010 MALE UNION Original OEM part

    CUMMINS

    $140.69
    $128.52
    Precision-engineered strength for unmatched reliability Ensures seamless connection with superior leak resistance Designed exclusively as an OEM component by Cummins for perfect...
    $140.69
    $128.52
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $140.69
    $128.52
    Subtotal:
  • CUMMINS 4006284 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 4006284 MALE UNION Original OEM part

    CUMMINS

    $94.50
    $86.33
    Engineered Precision for Unmatched Reliability Durable Construction for Long-Term Performance 100% Genuine OEM Cummins Part for Seamless Compatibility CUMMINS 4006284 MALE UNION - Powering...
    $94.50
    $86.33
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $94.50
    $86.33
    Subtotal:
  • CUMMINS 4000730 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 4000730 MALE UNION Original OEM part

    CUMMINS

    $71.75
    $65.54
    Precision-crafted to power your reliability Durable male union connection designed for leak-proof integration Constructed from premium materials to withstand harsh operating conditions Genuine OEM...
    $71.75
    $65.54
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $71.75
    $65.54
    Subtotal:
  • CUMMINS 3977696 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 3977696 MALE UNION Original OEM part

    CUMMINS

    $62.40
    $57.01
    Cummins 3977696 - MALE UNION MINS3977696 Discover 3977696 - MALE UNION by Cummins, available at its best price in our store. Engineered for optimum performance and durability, this original...
    $62.40
    $57.01
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $62.40
    $57.01
    Subtotal:
  • CUMMINS 3973023 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 3973023 MALE UNION Original OEM part

    CUMMINS

    $16.91
    $15.44
    Precision-engineered for seamless integration in Cummins systems Durable construction to withstand high-pressure applications Certified genuine OEM part to maintain warranty and system...
    $16.91
    $15.44
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $16.91
    $15.44
    Subtotal:
  • CUMMINS 3972578 - MALE UNION - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3972578 MALE UNION Original OEM part

    CUMMINS

    $81.37
    $74.33
    Precision engineered to uphold Cummins dependability in every connection Robust design ensures leak-proof service under high-pressure conditions Manufactured as a genuine OEM component to guarantee...
    $81.37
    $74.33
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $81.37
    $74.33
    Subtotal:
  • CUMMINS 3965790 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 3965790 MALE UNION Original OEM part

    CUMMINS

    $142.75
    $130.40
    Precision engineered for seamless integration and long-lasting durability Optimizes fuel flow and system efficiency under demanding conditions Manufactured as an original equipment part by Cummins...
    $142.75
    $130.40
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $142.75
    $130.40
    Subtotal:
  • CUMMINS 3965214 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 3965214 MALE UNION Original OEM part

    CUMMINS

    $38.81
    $35.45
    Precision engineered for seamless connectivity and durability Ensures leak-proof performance under demanding conditions 100% genuine OEM Cummins part for guaranteed compatibility CUMMINS 3965214...
    $38.81
    $35.45
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $38.81
    $35.45
    Subtotal:
  • CUMMINS 3960056 - MALE UNION - Original OEM part - Image 1
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    CUMMINS 3960056 MALE UNION Original OEM part

    CUMMINS

    $74.47
    $68.03
    Precision-engineered to keep your power running strong. Durable construction ensures long-lasting performance under demanding conditions. Optimized for seamless integration into Cummins power units...
    $74.47
    $68.03
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $74.47
    $68.03
    Subtotal:
  • CUMMINS 3959346 - MALE UNION - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3959346 MALE UNION Original OEM part

    CUMMINS

    $96.34
    $88.01
    Cummins 3959346 - MALE UNION MINS3959346 Our store proudly offers the genuine Cummins 3959346 - MALE UNION, ensuring top-notch quality and compatibility with your equipment. Trust us as your...
    $96.34
    $88.01
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $96.34
    $88.01
    Subtotal:
  • CUMMINS 3957132 - MALE UNION - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3957132 MALE UNION Original OEM part

    CUMMINS

    $28.20
    $25.77
    Precision engineered for seamless integration and enduring power. Robust construction ensures optimal flow and leak-free operation under demanding conditions. Corrosion-resistant materials safeguard...
    $28.20
    $25.77
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $28.20
    $25.77
    Subtotal:
  • CUMMINS 3957130 - MALE UNION - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3957130 MALE UNION Original OEM part

    CUMMINS

    $35.85
    $32.75
    Precision engineered for uncompromising performance Robust construction ensures leak-free, long-lasting connections Optimized for seamless integration within Cummins power systems Certified genuine...
    $35.85
    $32.75
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $35.85
    $32.75
    Subtotal:
  • CUMMINS 3945850 - MALE UNION - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3945850 MALE UNION Original OEM part

    CUMMINS

    $94.56
    $86.38
    Cummins 3945850 - MALE UNION MINS3945850 Search no further for the genuine 3945850 - MALE UNION from Cummins. Our store proudly offers this authentic replacement part at the best price. With fast...
    $94.56
    $86.38
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $94.56
    $86.38
    Subtotal:
  • CUMMINS 3941472 - UNION MALE - Image 1
    Add to Cart

    CUMMINS 3941472 MALE UNION Original OEM part

    CUMMINS

    $26.54
    $24.24
    Engineered to excellence: Precision-crafted for flawless integration and sustained operation. Durable construction: Built to withstand demanding conditions and ensure long service life. Certified...
    $26.54
    $24.24
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $26.54
    $24.24
    Subtotal:
  • CUMMINS 3908985 - UNION MALE - Image 1
    Add to Cart

    CUMMINS 3908985 MALE UNION Original OEM part

    CUMMINS

    $28.53
    $26.06
    Precision-crafted for uncompromising power and reliability Robust design guarantees secure, leak-free connections Engineered to maintain system integrity under demanding conditions Certified genuine...
    $28.53
    $26.06
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $28.53
    $26.06
    Subtotal:
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