Wire Harnesses

Genuine Wire Harnesses for Diesel Engines by Onan, Cummins & Fleetguard

Upgrade your diesel engine's electrical system with our premium wire harnesses, designed specifically for Onan, Cummins, and Fleetguard power engines. Our genuine wire harnesses ensure seamless connectivity and durability, critical for maintaining engine efficiency and safety.

Wire Harnesses & Electrical Wiring Solutions for Reliable Power Engines

Our catalog features expertly crafted wiring harnesses, complete wire assemblies, and connector kits that meet rigorous OEM standards. Whether you need replacement parts or upgrades, our wire harnesses guarantee robust performance under demanding conditions.

  • OEM Quality: Authentic parts engineered to fit perfectly with Onan, Cummins, and Fleetguard diesel engines.
  • Durability: Resistant to heat, vibration, and corrosion for long-lasting service life.
  • Enhanced Engine Performance: Ensures optimal electrical flow, reducing downtime and maintenance costs.

Why Choose Our Wire Harnesses? We provide genuine, brand-specific wire harnesses that combine expert craftsmanship with reliable performance, ensuring your diesel engines operate efficiently and safely every time.

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  • CUMMINS 4350822 - WIRING HARNESS - Original OEM part - Image 1
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    CUMMINS 4350822 WIRING HARNESS Original OEM part

    CUMMINS

    $1,630.92
    $1,489.84
    Cummins 4350822 - WIRING HARNESS MINS4350822 Upgrade your outdoor equipment with the genuine 4350822 - WIRING HARNESS by Cummins, ensuring a perfect fit and top-notch performance. Our store stands...
    $1,630.92
    $1,489.84
    Add to Cart
    Qty in Cart: 0
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    Price:
    $1,630.92
    $1,489.84
    Subtotal:
  • CUMMINS 4344966 - WIRING HARNESS - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4344966 WIRING HARNESS Original OEM part

    CUMMINS

    $411.04
    $375.48
    Precision engineered for seamless power and control integration Durable construction designed to withstand demanding engine environments 100% Genuine OEM CUMMINS component assuring perfect...
    $411.04
    $375.48
    Add to Cart
    Qty in Cart: 0
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    Price:
    $411.04
    $375.48
    Subtotal:
  • CUMMINS 4337535 - WIRING HARNESS - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4337535 WIRING HARNESS Original OEM part

    CUMMINS

    $1,188.38
    $1,085.59
    Precision-engineered connectivity for unwavering power delivery Durable construction designed to withstand harsh operating environments Manufactured as an authentic OEM Cummins component to maintain...
    $1,188.38
    $1,085.59
    Add to Cart
    Qty in Cart: 0
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    Price:
    $1,188.38
    $1,085.59
    Subtotal:
  • CUMMINS 4335200 - EXTERNAL CONTROL MODULE WIRING HARNESS - Original OEM part - Image 1
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    CUMMINS 4335200 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part

    CUMMINS

    $6,857.86
    $6,264.66
    Precision-engineered wiring harness for reliable external control integration Robust design enhances signal integrity and system responsiveness 100% genuine Cummins OEM component for assured...
    $6,857.86
    $6,264.66
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $6,857.86
    $6,264.66
    Subtotal:
  • CUMMINS 4334951 - EXTERNAL CONTROL MODULE WIRING HARNESS - Original OEM part - Image 1
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    CUMMINS 4334951 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part

    CUMMINS

    $13,164.16
    $12,025.46
    Precision-engineered connectivity for assured performance Designed to optimize control module communication and system efficiency Durable construction supports long-term operation under demanding...
    $13,164.16
    $12,025.46
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $13,164.16
    $12,025.46
    Subtotal:
  • CUMMINS 4334949 - EXTERNAL CONTROL MODULE WIRING HARNESS - Original OEM part - Image 1
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    CUMMINS 4334949 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part

    CUMMINS

    $14,547.95
    $13,289.55
    Engineered Precision for Ultimate Reliability Seamless connectivity with durable wiring quality Designed to maintain optimal engine system communication 100% Genuine OEM Cummins component assuring...
    $14,547.95
    $13,289.55
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $14,547.95
    $13,289.55
    Subtotal:
  • CUMMINS 4334868 - WIRING HARNESS - Original OEM part - Image 1
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    CUMMINS 4334868 WIRING HARNESS Original OEM part

    CUMMINS

    $11,569.43
    $10,568.67
    Cummins 4334868 - WIRING HARNESS MINS4334868 Find the original 4334868 - WIRING HARNESS by Cummins, SKU MINS4334868, at our store. With superior quality and compatibility, it ensures optimal...
    $11,569.43
    $10,568.67
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $11,569.43
    $10,568.67
    Subtotal:
  • CUMMINS 4334867 - WIRING HARNESS - Original OEM part - Image 1
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    CUMMINS 4334867 WIRING HARNESS Original OEM part

    CUMMINS

    $6,230.90
    $5,691.93
    Precision-engineered connectivity for optimal engine communication Robust construction designed to endure harsh operating environments 100% Genuine OEM part from Cummins, ensuring exact fit and peak...
    $6,230.90
    $5,691.93
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $6,230.90
    $5,691.93
    Subtotal:
  • CUMMINS 4334866 - WIRING HARNESS - Original OEM part - Image 1
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    CUMMINS 4334866 WIRING HARNESS Original OEM part

    CUMMINS

    $4,145.64
    $3,787.04
    Cummins 4334866 - WIRING HARNESS MINS4334866 Discover the authentic Cummins 4334866 - WIRING HARNESS (SKU: MINS4334866) at our online store, your go-to destination for genuine replacement parts...
    $4,145.64
    $3,787.04
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $4,145.64
    $3,787.04
    Subtotal:
  • CUMMINS 4334865 - WIRING HARNESS - Original OEM part - Image 1
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    CUMMINS 4334865 WIRING HARNESS Original OEM part

    CUMMINS

    $9,008.44
    $8,229.21
    Engineered Precision: Optimize your generator’s control systems with the CUMMINS 4334865 wiring harness designed for flawless electrical connectivity. Durability That Endures: Manufactured to meet...
    $9,008.44
    $8,229.21
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $9,008.44
    $8,229.21
    Subtotal:
  • CUMMINS 4333188 - EXTERNAL CONTROL MODULE WIRING HARNESS - Original OEM part - Image 1
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    CUMMINS 4333188 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part

    CUMMINS

    $3,429.15
    $3,132.53
    Empowering precision and lasting control for your Cummins system Engineered for perfect compatibility with Cummins external control modules Durable wiring harness design ensures reliable signal...
    $3,429.15
    $3,132.53
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $3,429.15
    $3,132.53
    Subtotal:
  • CUMMINS 4332023 - WIRING HARNESS - Original OEM part - Image 1
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    CUMMINS 4332023 WIRING HARNESS Original OEM part

    CUMMINS

    $3,977.82
    $3,633.74
    Engineered for reliability: Every connection matters in critical power systems. Durable construction: Built to withstand harsh environments and extended use. OEM precision: Designed by Cummins to...
    $3,977.82
    $3,633.74
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $3,977.82
    $3,633.74
    Subtotal:
  • CUMMINS 4331306 - WIRING HARNESS - Original OEM part
    Add to Cart

    CUMMINS 4331306 WIRING HARNESS Original OEM part

    CUMMINS

    $381.74
    $348.72
    Precision-engineered for seamless connectivity and optimal electrical flow. Durable construction guarantees long-lasting performance under harsh conditions. OEM certified by Cummins to ensure exact...
    $381.74
    $348.72
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $381.74
    $348.72
    Subtotal:
  • CUMMINS 4331263 - WIRING HARNESS - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4331263 WIRING HARNESS Original OEM part

    CUMMINS

    $345.89
    $315.97
    Precision-engineered for seamless power integration Durable design to withstand harsh operating conditions Ensures optimal electrical conductivity and system stability Certified OEM Cummins...
    $345.89
    $315.97
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $345.89
    $315.97
    Subtotal:
  • CUMMINS 4327996 - EXTERNAL CONTROL MODULE WIRING HARNESS - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4327996 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part

    CUMMINS

    $362.44
    $331.09
    Precision engineered for unmatched reliability in power control. Ensures flawless communication between control modules and engine systems. Durable, resistant against harsh operational environments...
    $362.44
    $331.09
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $362.44
    $331.09
    Subtotal:
  • CUMMINS 4326532 - WIRING HARNESS - Original OEM part - Image 1
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    CUMMINS 4326532 WIRING HARNESS Original OEM part

    CUMMINS

    $270.32
    $246.93
    Engineered Precision for Unrivaled Performance Robust design ensures reliable electrical connectivity under all operating conditions Optimized for durability and resistance against wear, heat, and...
    $270.32
    $246.93
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $270.32
    $246.93
    Subtotal:
  • CUMMINS 4323045 - WIRING HARNESS - Original OEM part - Image 1
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    CUMMINS 4323045 WIRING HARNESS Original OEM part

    CUMMINS

    $10,796.79
    $9,862.87
    Engineered for precision, built for endurance. Designed to deliver flawless electrical connectivity under all operating conditions. Resilient construction guards against wear, corrosion, and...
    $10,796.79
    $9,862.87
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $10,796.79
    $9,862.87
    Subtotal:
  • CUMMINS 4323034 - EXTERNAL CONTROL MODULE WIRING HARNESS - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4323034 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part

    CUMMINS

    $10,439.43
    $9,536.42
    Crafted for Precision, Built for Reliability Seamless connectivity ensuring optimal signal transmission under demanding conditions Designed to withstand harsh environments, maintaining consistent...
    $10,439.43
    $9,536.42
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $10,439.43
    $9,536.42
    Subtotal:
  • CUMMINS 4318576 - WIRING HARNESS - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4318576 WIRING HARNESS Original OEM part

    CUMMINS

    $258.14
    $235.81
    Engineered for Unmatched Reliability: Experience seamless electrical connectivity that powers your Cummins systems flawlessly. Durable Design: Built to withstand harsh operating conditions, ensuring...
    $258.14
    $235.81
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $258.14
    $235.81
    Subtotal:
  • CUMMINS 4318324 - WIRING HARNESS - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4318324 WIRING HARNESS Original OEM part

    CUMMINS

    $185.32
    $169.29
    Engineered for uncompromising electrical integrity and durability Designed to optimize connectivity and reduce downtime 100% Genuine OEM part directly from Cummins, ensuring exact fit and...
    $185.32
    $169.29
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $185.32
    $169.29
    Subtotal:
  • CUMMINS 4315889 - WIRING HARNESS - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4315889 WIRING HARNESS Original OEM part

    CUMMINS

    $2,228.85
    $2,036.05
    Engineered for seamless power delivery with uncompromising durability Optimizes electrical flow to maintain engine health and safety Direct OEM replacement ensuring perfect fit and peak...
    $2,228.85
    $2,036.05
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $2,228.85
    $2,036.05
    Subtotal:
  • CUMMINS 4314439 - WIRING HARNESS - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4314439 WIRING HARNESS Original OEM part

    CUMMINS

    $2,474.54
    $2,260.49
    Cummins 4314439 - WIRING HARNESS MINS4314439 Discover the high-quality 4314439 - WIRING HARNESS by Cummins, available at our store. Crafted with precision and expertise, this genuine replacement...
    $2,474.54
    $2,260.49
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $2,474.54
    $2,260.49
    Subtotal:
  • CUMMINS 4312327 - EXTERNAL CONTROL MODULE WIRING HARNESS - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4312327 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part

    CUMMINS

    $2,336.09
    $2,134.02
    Precision-engineered to uphold Cummins' legacy of excellence Seamless connectivity for optimal engine control Robust build ensures long-term resistance to wear and environmental stress Certified...
    $2,336.09
    $2,134.02
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $2,336.09
    $2,134.02
    Subtotal:
  • CUMMINS 4310447 - EXTERNAL CONTROL MODULE WIRING HARNESS - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4310447 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part

    CUMMINS

    $2,498.60
    $2,282.48
    Precision-engineered wiring harness to optimize your control module's functionality Enhances system reliability and communication for seamless power management 100% genuine OEM part from Cummins for...
    $2,498.60
    $2,282.48
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $2,498.60
    $2,282.48
    Subtotal:
  • CUMMINS 4310251 - WIRING HARNESS - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4310251 WIRING HARNESS Original OEM part

    CUMMINS

    $1,598.38
    $1,460.12
    Cummins 4310251 - WIRING HARNESS MINS4310251 Experience the pinnacle of quality with the Cummins 4310251 - WIRING HARNESS, SKU MINS4310251. Made with precision and expertise, this wiring harness...
    $1,598.38
    $1,460.12
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $1,598.38
    $1,460.12
    Subtotal:
  • CUMMINS 4310219 - EXTERNAL CONTROL MODULE WIRING HARNESS - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4310219 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part

    CUMMINS

    $4,689.25
    $4,283.63
    Precision-engineered reliability trusted by Cummins professionals Built for seamless system integration and optimal engine communication Durable wiring harness designed to withstand tough power...
    $4,689.25
    $4,283.63
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $4,689.25
    $4,283.63
    Subtotal:
  • CUMMINS 4308744 - WIRING HARNESS - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4308744 WIRING HARNESS Original OEM part

    CUMMINS

    $126.86
    $115.89
    Precision-engineered connectivity for uncompromised power transfer Durable construction to withstand harsh operating conditions Guaranteed OEM authenticity from Cummins for optimal system...
    $126.86
    $115.89
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $126.86
    $115.89
    Subtotal:
  • CUMMINS 4306762 - WIRING HARNESS - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4306762 WIRING HARNESS Original OEM part

    CUMMINS

    $6,241.48
    $5,701.59
    Engineered for seamless integration and unmatched reliability in Cummins power systems Robust construction ensures optimal electrical connectivity and enhanced engine performance Certified OEM...
    $6,241.48
    $5,701.59
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $6,241.48
    $5,701.59
    Subtotal:
  • CUMMINS 4302609 - WIRING HARNESS - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4302609 WIRING HARNESS Original OEM part

    CUMMINS

    $155.39
    $141.95
    Engineered to empower your power system with flawless connectivity. Precision-crafted wiring harness for enhanced durability and signal integrity. Designed to withstand demanding operational...
    $155.39
    $141.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $155.39
    $141.95
    Subtotal:
  • CUMMINS 4302574 - WIRING HARNESS - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4302574 WIRING HARNESS Original OEM part

    CUMMINS

    $10,821.68
    $9,885.61
    Cummins 4302574 - WIRING HARNESS MINS4302574 Find the authentic Cummins 4302574 - WIRING HARNESS, ensuring seamless electrical connectivity for your outdoor equipment. Trust in our store for genuine...
    $10,821.68
    $9,885.61
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $10,821.68
    $9,885.61
    Subtotal:
  • CUMMINS 4302573 - WIRING HARNESS - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4302573 WIRING HARNESS Original OEM part

    CUMMINS

    $5,899.12
    $5,388.84
    Precision engineered for uncompromised power connectivity Robust wiring harness designed for longevity and resistance to harsh conditions Optimizes electrical signal transmission to maintain system...
    $5,899.12
    $5,388.84
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $5,899.12
    $5,388.84
    Subtotal:
  • CUMMINS 4302571 - WIRING HARNESS - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4302571 WIRING HARNESS Original OEM part

    CUMMINS

    $508.85
    $464.83
    Built for unmatched electrical precision and durability in demanding power systems Ensures seamless signal transmission to optimize generator and engine control functions Strictly manufactured as an...
    $508.85
    $464.83
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $508.85
    $464.83
    Subtotal:
  • CUMMINS 4302398 - EXTERNAL CONTROL MODULE WIRING HARNESS - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4302398 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part

    CUMMINS

    $2,789.70
    $2,548.40
    Precision powered by Cummins engineering excellence Robust connection ensuring optimal external control module communication Durable design for extended service life under demanding conditions 100%...
    $2,789.70
    $2,548.40
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $2,789.70
    $2,548.40
    Subtotal:
  • CUMMINS 4302390 - EXTERNAL CONTROL MODULE WIRING HARNESS - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4302390 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part

    CUMMINS

    $9,513.68
    $8,690.75
    Engineered for unmatched system precision and durability Ensures flawless communication within your control modules Premium OEM craftsmanship guaranteeing perfect fit and function Designed...
    $9,513.68
    $8,690.75
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $9,513.68
    $8,690.75
    Subtotal:
  • CUMMINS 4302181 - WIRING HARNESS - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4302181 WIRING HARNESS Original OEM part

    CUMMINS

    $5,950.12
    $5,435.43
    Experience unmatched connectivity with engineering excellence tailored for Cummins power solutions Designed to maintain optimal electrical flow critical for engine efficiency and...
    $5,950.12
    $5,435.43
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $5,950.12
    $5,435.43
    Subtotal:
  • CUMMINS 4302180 - WIRING HARNESS - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4302180 WIRING HARNESS Original OEM part

    CUMMINS

    $3,818.69
    $3,488.38
    Experience unmatched connectivity engineered for durability and precision Designed to optimize electrical flow and enhance generator system efficiency Robust construction ensures long-lasting...
    $3,818.69
    $3,488.38
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $3,818.69
    $3,488.38
    Subtotal:
  • CUMMINS 4302179 - WIRING HARNESS - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4302179 WIRING HARNESS Original OEM part

    CUMMINS

    $3,750.95
    $3,426.49
    Engineered Excellence for Your Cummins Powertrain Seamless electrical connectivity for dependable performance Durable wiring design crafted to withstand harsh conditions Manufactured by Cummins to...
    $3,750.95
    $3,426.49
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $3,750.95
    $3,426.49
    Subtotal:
  • CUMMINS 4302178 - WIRING HARNESS - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4302178 WIRING HARNESS Original OEM part

    CUMMINS

    $3,523.98
    $3,219.16
    Cummins 4302178 - WIRING HARNESS MINS4302178 Find the high-quality "4302178 - WIRING HARNESS" from Cummins at our store with the SKU "MINS4302178." Our commitment to authenticity ensures you get the...
    $3,523.98
    $3,219.16
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $3,523.98
    $3,219.16
    Subtotal:
  • CUMMINS 4295539 - WIRING HARNESS - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4295539 WIRING HARNESS Original OEM part

    CUMMINS

    $579.09
    $529.00
    Engineered for precision and dependability that Cummins owners trust. Seamlessly connects your generator’s electrical components for consistent power delivery. Durable construction built to endure...
    $579.09
    $529.00
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $579.09
    $529.00
    Subtotal:
  • CUMMINS 4295497 - WIRING HARNESS - Original OEM part - Image 1
    Add to Cart

    CUMMINS 4295497 WIRING HARNESS Original OEM part

    CUMMINS

    $654.13
    $597.55
    Precision-crafted for flawless connection integrity Designed to withstand harsh environments and guarantee long service life Certified genuine OEM component from Cummins ensuring perfect fit and...
    $654.13
    $597.55
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $654.13
    $597.55
    Subtotal:
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