Adapters

Genuine Diesel Engines Adapters for Onan, Cummins, and Fleetguard

Discover our premium range of adapters crafted specifically for diesel power engines by trusted brands Onan, Cummins, and Fleetguard. These genuine adapters ensure perfect fitment and enhanced connectivity between engine components, promoting efficient power transmission and longevity.

Adapters for Reliable and Efficient Diesel Engine Performance

Our collection features various adapter types, including coupling adapters, flange adapters, and connector adapters, all engineered to meet rigorous industry standards. Each adapter offers exceptional durability, corrosion resistance, and precision engineering to maintain seamless integration within your diesel engine system.

  • Authentic Quality: Genuine parts directly from Onan, Cummins, and Fleetguard for assured compatibility and performance.
  • Wide Compatibility: Designed to fit a broad range of diesel power engines, ensuring easy installation and optimal operation.
  • Enhanced Durability: Manufactured with high-grade materials to withstand harsh engine environments and extend service life.

Why Choose Our Adapters? We provide expertly sourced, genuine adapters that guarantee superior fit, durability, and performance—backed by trusted brands to keep your diesel engines running at peak efficiency.

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  • CUMMINS 3942456 - FUEL CONNECTOR ADAPTER - Original OEM part - Image 1
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    CUMMINS 3942456 FUEL CONNECTOR ADAPTER Original OEM part

    CUMMINS

    $44.09
    $40.28
    Trusted Performance, Engineered for Excellence Precision-fit connector adapter for seamless fuel system integration Enhanced fuel flow reliability supporting engine health 100% Genuine OEM Cummins...
    $44.09
    $40.28
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    Qty in Cart: 0
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    Price:
    $44.09
    $40.28
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  • FLEETGUARD 3939411-S - 3939411S PACK ADAPTOR Original FLEETGUARD OEM part - Original OEM part - Image 1
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    FLEETGUARD 3939411S PACK ADAPTOR Original FLEETGUARD OEM part

    FLEETGUARD

    $866.55
    $791.59
    Fleetguard 3939411-S - PACK ADAPTOR FLG3939411-S Discover the top-tier quality of the Fleetguard 3939411-S - PACK ADAPTOR at our online store. This genuine replacement part ensures optimal...
    $866.55
    $791.59
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $866.55
    $791.59
    Subtotal:
  • CUMMINS 3939088 - CRANKSHAFT ADAPTER - Original OEM part - Image 1
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    CUMMINS 3939088 CRANKSHAFT ADAPTER Original OEM part

    CUMMINS

    $975.96
    $891.54
    Engineered for Excellence: Deliver unmatched precision and durability with every crankshaft adapter. Optimized Fit and Function: Designed specifically to enhance engine efficiency and reduce wear...
    $975.96
    $891.54
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    Qty in Cart: 0
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    Price:
    $975.96
    $891.54
    Subtotal:
  • CUMMINS 3931928 - MALE ADAPTER ELBOW - Original OEM part - Image 1
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    CUMMINS 3931928 MALE ADAPTER ELBOW Original OEM part

    CUMMINS

    $193.55
    $176.81
    Engineered for precision, built to perform Durable design ensuring seamless fluid connections with minimal leakage Corrosion-resistant construction for long-lasting service under demanding...
    $193.55
    $176.81
    Add to Cart
    Qty in Cart: 0
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    Price:
    $193.55
    $176.81
    Subtotal:
  • CUMMINS 3930860 - CRANKSHAFT ADAPTER - Original OEM part - Image 1
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    CUMMINS 3930860 CRANKSHAFT ADAPTER Original OEM part

    CUMMINS

    $799.69
    $730.52
    Precision engineered for flawless integration Exceptional durability to withstand rigorous engine cycles Certified genuine Cummins OEM component for guaranteed compatibility CUMMINS 3930860...
    $799.69
    $730.52
    Add to Cart
    Qty in Cart: 0
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    Price:
    $799.69
    $730.52
    Subtotal:
  • CUMMINS 3927962 - FILTER HEAD ADAPTER - Original OEM part - Image 1
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    CUMMINS 3927962 FILTER HEAD ADAPTER Original OEM part

    CUMMINS

    $373.90
    $341.56
    Engineered for uncompromising performance with Cummins precision Durable construction ensures reliable fluid flow and filter integrity Maintains peak engine efficiency and extends service...
    $373.90
    $341.56
    Add to Cart
    Qty in Cart: 0
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    Price:
    $373.90
    $341.56
    Subtotal:
  • CUMMINS 3927816 - CONNECTION ADAPTER - Original OEM part - Image 1
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    CUMMINS 3927816 ADAPTER CONNECTION Original OEM part

    CUMMINS

    $464.93
    $424.71
    Engineered to deliver precision fit and uncompromising reliability for your Cummins equipment Optimizes connection integrity to maintain consistent power flow and engine performance Crafted from...
    $464.93
    $424.71
    Add to Cart
    Qty in Cart: 0
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    Price:
    $464.93
    $424.71
    Subtotal:
  • CUMMINS 3925955 - FILTER HEAD ADAPTER - Original OEM part - Image 1
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    CUMMINS 3925955 FILTER HEAD ADAPTER Original OEM part

    CUMMINS

    $56.92
    $51.99
    Cummins 3925955 - FILTER HEAD ADAPTER MINS3925955 Discover the authentic 3925955 - FILTER HEAD ADAPTER by Cummins at our store. Trust us for the highest quality original replacement parts. With fast...
    $56.92
    $51.99
    Add to Cart
    Qty in Cart: 0
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    Price:
    $56.92
    $51.99
    Subtotal:
  • CUMMINS 3925916 - HYDRAULIC PUMP ADAPTER - Original OEM part - Image 1
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    CUMMINS 3925916 HYDRAULIC PUMP ADAPTER Original OEM part

    CUMMINS

    $3,129.52
    $2,858.81
    Precision-engineered durability to ensure seamless hydraulic system integration Optimized for peak hydraulic pump performance and longevity 100% authentic CUMMINS OEM component guaranteeing full...
    $3,129.52
    $2,858.81
    Add to Cart
    Qty in Cart: 0
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    Price:
    $3,129.52
    $2,858.81
    Subtotal:
  • CUMMINS 3925258 - PLAIN ADAPTER - Original OEM part - Image 1
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    CUMMINS 3925258 PLAIN ADAPTER Original OEM part

    CUMMINS

    $115.75
    $105.74
    Engineered to uphold Cummins' legacy of reliability and efficiency Precision-crafted to ensure perfect fit and optimal performance Durable construction designed to withstand demanding...
    $115.75
    $105.74
    Add to Cart
    Qty in Cart: 0
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    Price:
    $115.75
    $105.74
    Subtotal:
  • CUMMINS 3924568 - MALE ADAPTER ELBOW - Original OEM part - Image 1
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    CUMMINS 3924568 MALE ADAPTER ELBOW Original OEM part

    CUMMINS

    $179.45
    $163.93
    Precision-engineered connection for uncompromised system integrity Designed to enhance durability and reduce system wear Durable construction ensures reliable, leak-free operation Genuine OEM...
    $179.45
    $163.93
    Add to Cart
    Qty in Cart: 0
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    Price:
    $179.45
    $163.93
    Subtotal:
  • CUMMINS 3923882 - ADAPTER CRANKSHAFT - Original OEM part
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    CUMMINS 3923882 CRANKSHAFT ADAPTER Original OEM part

    CUMMINS

    $750.44
    $685.53
    Experience unmatched precision engineered for seamless integration and uncompromising durability. Designed for optimal torque transfer and alignment, ensuring peak engine efficiency. Fabricated to...
    $750.44
    $685.53
    Add to Cart
    Qty in Cart: 0
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    Price:
    $750.44
    $685.53
    Subtotal:
  • CUMMINS 3923334 - MALE ADAPTER ELBOW - Original OEM part - Image 1
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    CUMMINS 3923334 MALE ADAPTER ELBOW Original OEM part

    CUMMINS

    $190.26
    $173.80
    Precision-engineered for seamless integration in your Cummins power system Durable construction enhances long-term operational efficiency under demanding conditions Certified genuine Cummins OEM...
    $190.26
    $173.80
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $190.26
    $173.80
    Subtotal:
  • CUMMINS 3916317 - CRANKSHAFT ADAPTER - Original OEM part - Image 1
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    CUMMINS 3916317 CRANKSHAFT ADAPTER Original OEM part

    CUMMINS

    $1,787.80
    $1,633.16
    Precision engineered for optimal crankshaft alignment Durable design enhances engine longevity and performance 100% genuine Cummins OEM component ensuring perfect compatibility CUMMINS 3916317...
    $1,787.80
    $1,633.16
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $1,787.80
    $1,633.16
    Subtotal:
  • CUMMINS 3916222 - TRANSMISSION ADAPTER - Original OEM part - Image 1
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    CUMMINS 3916222 TRANSMISSION ADAPTER Original OEM part

    CUMMINS

    $511.80
    $467.53
    Precision engineered for seamless integration Ensures optimal transmission alignment and durability 100% genuine OEM CUMMINS quality guaranteed CUMMINS 3916222 TRANSMISSION ADAPTER—Empowering your...
    $511.80
    $467.53
    Add to Cart
    Qty in Cart: 0
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    Price:
    $511.80
    $467.53
    Subtotal:
  • CUMMINS 3915454 - SPLINE ADAPTER - Original OEM part - Image 1
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    CUMMINS 3915454 SPLINE ADAPTER Original OEM part

    CUMMINS

    $804.70
    $735.10
    Precision engineered for uncompromising power transmission Robust construction ensures exceptional durability under demanding conditions Crafted as a genuine OEM Cummins component to guarantee...
    $804.70
    $735.10
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $804.70
    $735.10
    Subtotal:
  • CUMMINS 3915172 - MALE ADAPTER ELBOW - Original OEM part - Image 1
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    CUMMINS 3915172 MALE ADAPTER ELBOW Original OEM part

    CUMMINS

    $122.57
    $111.97
    Engineered precision for seamless integration within Cummins power systems Durable design to withstand harsh operational conditions ensuring long-lasting service Certified OEM part guaranteeing...
    $122.57
    $111.97
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $122.57
    $111.97
    Subtotal:
  • CUMMINS 3914579 - PLAIN ADAPTER - Original OEM part - Image 1
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    CUMMINS 3914579 PLAIN ADAPTER Original OEM part

    CUMMINS

    $135.66
    $123.93
    Engineered to fit seamlessly, maximizing your power system’s potential Durability that supports sustained performance under demanding conditions Precision OEM manufacture ensures flawless...
    $135.66
    $123.93
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $135.66
    $123.93
    Subtotal:
  • CUMMINS 3913689 - CRANKSHAFT ADAPTER - Original OEM part - Image 1
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    CUMMINS 3913689 CRANKSHAFT ADAPTER Original OEM part

    CUMMINS

    $689.14
    $629.53
    Cummins 3913689 - CRANKSHAFT ADAPTER MINS3913689 Upgrade your outdoor equipment with the genuine 3913689 - CRANKSHAFT ADAPTER by Cummins. Our store is your top choice for authentic replacement parts...
    $689.14
    $629.53
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $689.14
    $629.53
    Subtotal:
  • CUMMINS 3913593 - TRANSMISSION ADAPTER - Original OEM part - Image 1
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    CUMMINS 3913593 TRANSMISSION ADAPTER Original OEM part

    CUMMINS

    $1,939.50
    $1,771.74
    Cummins 3913593 - TRANSMISSION ADAPTER MINS3913593 When it comes to finding genuine replacement parts like the 3913593 - TRANSMISSION ADAPTER from Cummins, our store stands out as the top choice...
    $1,939.50
    $1,771.74
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $1,939.50
    $1,771.74
    Subtotal:
  • CUMMINS 3913451 - MARINE GEAR ADAPTER - Original OEM part - Image 1
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    CUMMINS 3913451 MARINE GEAR ADAPTER Original OEM part

    CUMMINS

    $2,929.20
    $2,675.83
    Engineered for marine excellence and uncompromising durability Precision fit ensures seamless integration with Cummins marine engines Manufactured as an original equipment part by Cummins for...
    $2,929.20
    $2,675.83
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $2,929.20
    $2,675.83
    Subtotal:
  • CUMMINS 3912971 - MALE ADAPTER ELBOW - Original OEM part - Image 1
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    CUMMINS 3912971 MALE ADAPTER ELBOW Original OEM part

    CUMMINS

    $66.76
    $60.99
    Designed to sustain uncompromising performance under the toughest conditions Precision-engineered to ensure optimal flow and leak-free connections Constructed from robust materials to guarantee...
    $66.76
    $60.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $66.76
    $60.99
    Subtotal:
  • CUMMINS 3912601 - TRANSMISSION ADAPTER - Original OEM part - Image 1
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    CUMMINS 3912601 TRANSMISSION ADAPTER Original OEM part

    CUMMINS

    $6,415.09
    $5,860.19
    Precision-engineered to maintain the legacy of Cummins excellence Ensures perfect transmission alignment for optimal power transfer Durable OEM material guarantees long service life under demanding...
    $6,415.09
    $5,860.19
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $6,415.09
    $5,860.19
    Subtotal:
  • CUMMINS 3911526 - REDUCING PIPE ADAPTER - Original OEM part - Image 1
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    CUMMINS 3911526 REDUCING PIPE ADAPTER Original OEM part

    CUMMINS

    $15.00
    $13.71
    Precision-built for seamless integration in Cummins power systems Engineered to enhance flow efficiency and durability under demanding conditions Manufactured as an original equipment part to meet...
    $15.00
    $13.71
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $15.00
    $13.71
    Subtotal:
  • CUMMINS 3909355 - ADAPTER FILTER HEAD - Image 1
    Add to Cart

    CUMMINS 3909355 FILTER HEAD ADAPTER Original OEM part

    CUMMINS

    $68.10
    $62.21
    Precision-engineered for seamless integration in Cummins systems Enhances filtration efficiency for prolonged engine life Durable OEM construction ensures consistent performance under heavy duty...
    $68.10
    $62.21
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $68.10
    $62.21
    Subtotal:
  • CUMMINS 3908124 - TRANSMISSION ADAPTER - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3908124 TRANSMISSION ADAPTER Original OEM part

    CUMMINS

    $1,232.60
    $1,125.99
    Cummins 3908124 - TRANSMISSION ADAPTER MINS3908124 Explore our selection of genuine Cummins 3908124 - TRANSMISSION ADAPTER, SKU MINS3908124, an essential part for your outdoor equipment. Our store...
    $1,232.60
    $1,125.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $1,232.60
    $1,125.99
    Subtotal:
  • CUMMINS 3907619 - TRANSMISSION ADAPTER - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3907619 TRANSMISSION ADAPTER Original OEM part

    CUMMINS

    $697.79
    $637.44
    Precision engineered for uncompromising Cummins power integrity Robust transmission interface designed for extended service life Crafted exclusively as a genuine OEM Cummins component CUMMINS...
    $697.79
    $637.44
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $697.79
    $637.44
    Subtotal:
  • CUMMINS 3907613 - CRANKSHAFT ADAPTER - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3907613 CRANKSHAFT ADAPTER Original OEM part

    CUMMINS

    $665.83
    $608.23
    Precision engineered for seamless integration and maximum durability Essential component to maintain engine alignment and smooth operation under heavy loads Certified genuine OEM part from Cummins...
    $665.83
    $608.23
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $665.83
    $608.23
    Subtotal:
  • CUMMINS 3907612 - CRANKSHAFT ADAPTER - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3907612 CRANKSHAFT ADAPTER Original OEM part

    CUMMINS

    $562.12
    $513.49
    Precision-engineered for seamless integration — Every crankshaft adapter is crafted to exact Cummins standards for flawless operation. Durability under demanding conditions — Built to withstand...
    $562.12
    $513.49
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $562.12
    $513.49
    Subtotal:
  • CUMMINS 3905503 - MALE ADAPTER ELBOW - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3905503 MALE ADAPTER ELBOW Original OEM part

    CUMMINS

    $87.56
    $79.99
    Engineered for uncompromising reliability and seamless integration in Cummins power systems Designed to maintain optimal fluid flow with precision-fit performance Manufactured as a genuine OEM...
    $87.56
    $79.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $87.56
    $79.99
    Subtotal:
  • CUMMINS 3905217 - ANGLE DRIVE ADAPTER - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3905217 ANGLE DRIVE ADAPTER Original OEM part

    CUMMINS

    $615.24
    $562.02
    Engineered for precision and uncompromising reliability Robust design ensures seamless power transfer Precision-fit for optimal compatibility with Cummins engines Authentic OEM part from Cummins for...
    $615.24
    $562.02
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $615.24
    $562.02
    Subtotal:
  • FLEETGUARD 3905073-S - 3905073S PACK ADAPTOR Original FLEETGUARD OEM part - Original OEM part - Image 1
    Add to Cart

    FLEETGUARD 3905073S PACK ADAPTOR Original FLEETGUARD OEM part

    FLEETGUARD

    $542.46
    $495.54
    Fleetguard 3905073-S - PACK ADAPTOR FLG3905073-S Find the original Fleetguard 3905073-S - PACK ADAPTOR at our store, where quality meets affordability. With the assurance of genuine replacement...
    $542.46
    $495.54
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $542.46
    $495.54
    Subtotal:
  • FLEETGUARD 3904842-S - 3904842S PACK ADAPTOR Original FLEETGUARD OEM part - Original OEM part - Image 1
    Add to Cart

    FLEETGUARD 3904842S PACK ADAPTOR Original FLEETGUARD OEM part

    FLEETGUARD

    $411.78
    $376.16
    Fleetguard 3904842-S - PACK ADAPTOR FLG3904842-S Discover the genuine Fleetguard 3904842-S - PACK ADAPTOR available at our store. Ensure optimal performance and durability for your outdoor equipment...
    $411.78
    $376.16
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $411.78
    $376.16
    Subtotal:
  • FLEETGUARD 3903938-S - 3903938S PACK ADAPTOR Original FLEETGUARD OEM part - Original OEM part - Image 1
    Add to Cart

    FLEETGUARD 3903938S PACK ADAPTOR Original FLEETGUARD OEM part

    FLEETGUARD

    $105.76
    $96.61
    Fleetguard 3903938-S - PACK ADAPTOR FLG3903938-S Browse no further for the genuine 3903938-S - PACK ADAPTOR by Fleetguard, available exclusively at our store. With top-notch quality and reliability,...
    $105.76
    $96.61
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $105.76
    $96.61
    Subtotal:
  • CUMMINS 3903784 - CRANKSHAFT ADAPTER - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3903784 CRANKSHAFT ADAPTER Original OEM part

    CUMMINS

    $613.63
    $560.55
    Cummins 3903784 - CRANKSHAFT ADAPTER MINS3903784 Find the original 3903784 - CRANKSHAFT ADAPTER by Cummins at our online store, where quality meets affordability. This product, SKU MINS3903784, is a...
    $613.63
    $560.55
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $613.63
    $560.55
    Subtotal:
  • CUMMINS 3899625 - ADAPTER FILTER HEAD - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3899625 FILTER HEAD ADAPTER Original OEM part

    CUMMINS

    $506.66
    $462.83
    Engineered for Excellence: Precision-crafted to maintain optimal filtration system integrity. Robust Durability: Built from premium materials to withstand demanding power environments. 100% Genuine...
    $506.66
    $462.83
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $506.66
    $462.83
    Subtotal:
  • CUMMINS 3897776 - CRANKSHAFT ADAPTER - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3897776 CRANKSHAFT ADAPTER Original OEM part

    CUMMINS

    $447.17
    $408.49
    Engineered Precision for Seamless Power Transmission Durability that Upholds Your Engine's Integrity Essential component ensuring optimal crankshaft alignment and performance Certified genuine OEM...
    $447.17
    $408.49
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $447.17
    $408.49
    Subtotal:
  • CUMMINS 3877066 - ADAPTER CONNECTION - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3877066 ADAPTER CONNECTION Original OEM part

    CUMMINS

    $243.32
    $222.27
    Precision engineered for seamless integration Enhances system efficiency and reliability Durability designed to withstand demanding applications 100% genuine OEM Cummins component guaranteeing...
    $243.32
    $222.27
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $243.32
    $222.27
    Subtotal:
  • CUMMINS 3874262 - ADAPTER SPARK PLUG - Image 1
    Add to Cart

    CUMMINS 3874262 SPARK PLUG ADAPTER Original OEM part

    CUMMINS

    $26.00
    $23.76
    Engineered precision meets uncompromising reliability. Ensures optimal spark plug fitment and secure ignition connection. Designed to enhance engine performance and maintain fuel efficiency...
    $26.00
    $23.76
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $26.00
    $23.76
    Subtotal:
  • CUMMINS 3872199 - SPLINE ADAPTER - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3872199 SPLINE ADAPTER Original OEM part

    CUMMINS

    $1,128.56
    $1,030.94
    Cummins 3872199 - SPLINE ADAPTER MINS3872199 Discover the authentic 3872199 - SPLINE ADAPTER from Cummins at our store. Crafted with precision and designed for durability, this genuine replacement...
    $1,128.56
    $1,030.94
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $1,128.56
    $1,030.94
    Subtotal:
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