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 4007287 WIRING HARNESS Original OEM part
CUMMINS
$847.06$773.79Dependable Connectivity: Ensures flawless electrical signal transmission for stable engine operation. Precision Engineered: Crafted to meet Cummins’ stringent quality standards for seamless...$847.06$773.79 -
CUMMINS 4003838 WIRING HARNESS Original OEM part
CUMMINS
$1,540.24$1,407.01Cummins 4003838 - WIRING HARNESS MINS4003838 Find the perfect fit for your outdoor equipment with the Cummins 4003838 - WIRING HARNESS (SKU: MINS4003838). Our store offers genuine replacement parts...$1,540.24$1,407.01 -
CUMMINS 4003626 WIRING HARNESS Original OEM part
CUMMINS
$50.18$45.84Precision-engineered connectivity for uncompromised power integrity Durable materials guarantee extended service life under rigorous operating conditions Fully OEM certified by Cummins to maintain...$50.18$45.84 -
CUMMINS 4000633 WIRING HARNESS Original OEM part
CUMMINS
$3,502.00$3,199.08Precision-crafted connectivity for seamless power delivery Engineered to withstand harsh environments and ensure long-term durability 100% Genuine Cummins OEM component guaranteeing exact fit and...$3,502.00$3,199.08 -
CUMMINS 3999669 WIRING HARNESS Original OEM part
CUMMINS
$2,212.13$2,020.78Engineered precision fueling dependable power flow Robust construction for enduring electrical integrity Optimized design ensures flawless compatibility with Cummins systems Certified OEM component...$2,212.13$2,020.78 -
CUMMINS 3992221 WIRING HARNESS Original OEM part
CUMMINS
$2,306.00$2,106.54Precision wired for dependable power, engineered for lasting excellence. Seamless connectivity ensuring optimal electrical performance. Robust design resists wear and harsh operating conditions...$2,306.00$2,106.54 -
CUMMINS 3979318 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part
CUMMINS
$1,806.79$1,650.51Cummins 3979318 - EXTERNAL CONTROL MODULE WIRING HARNESS MINS3979318 Find the genuine Cummins 3979318 - EXTERNAL CONTROL MODULE WIRING HARNESS at our store - the ultimate solution for your outdoor...$1,806.79$1,650.51 -
CUMMINS 3976256 WIRING HARNESS Original OEM part
CUMMINS
$1,151.15$1,051.58Engineered precision meets enduring reliability for your power system Optimized wiring design for flawless electrical performance Robust construction resists wear and environmental challenges 100%...$1,151.15$1,051.58 -
CUMMINS 3976253 WIRING HARNESS Original OEM part
CUMMINS
$1,364.70$1,246.66Precision-engineered for reliability and peak performance in every connection. Designed to maintain optimal electrical flow ensuring smooth engine operation. Genuine Cummins OEM part guaranteeing...$1,364.70$1,246.66 -
CUMMINS 3975961 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part
CUMMINS
$3,616.20$3,303.40Precision engineered to maintain Cummins power excellence Robust wiring harness designed to optimize external control module connectivity Durable construction ensures flawless data transmission and...$3,616.20$3,303.40 -
CUMMINS 3974730 WIRING HARNESS Original OEM part
CUMMINS
$4,679.63$4,274.84Precision engineered for reliable power connections Durable wiring to withstand demanding operational environments Factory-certified OEM component for assured compatibility Manufactured by Cummins...$4,679.63$4,274.84 -
CUMMINS 3973828 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part
CUMMINS
$1,803.90$1,647.87Engineered Precision Meets Dependable Power Robust External Control Module Wiring Harness for seamless signal integrity Designed to withstand harsh operating conditions for extended service...$1,803.90$1,647.87 -
CUMMINS 3973685 WIRING HARNESS Original OEM part
CUMMINS
$3,659.80$3,343.23Dependable connectivity for uncompromised power delivery Precision-engineered wiring harness to maintain engine control and communication Enhanced durability minimizes downtime and costly...$3,659.80$3,343.23 -
CUMMINS 3973684 WIRING HARNESS Original OEM part
CUMMINS
$3,714.75$3,393.42Engineered for seamless power delivery and unmatched reliability Precision-crafted wiring harness ensures optimal electrical performance Enhanced durability resists harsh environments and...$3,714.75$3,393.42 -
CUMMINS 3972349 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part
CUMMINS
$4,167.06$3,806.61Precisely Engineered for Dependable Power Management Optimized Wiring Harness Ensures Accurate Signal Transmission Robust Build to Withstand Demanding Environments Certified Genuine OEM Cummins...$4,167.06$3,806.61 -
CUMMINS 3971759 WIRING HARNESS Original OEM part
CUMMINS
$115.19$105.23Cummins 3971759 - WIRING HARNESS MINS3971759 The 3971759 - WIRING HARNESS, SKU MINS3971759 by Cummins, is a reliable replacement part for your outdoor equipment. Our store is the ultimate...$115.19$105.23 -
CUMMINS 3971758 WIRING HARNESS Original OEM part
CUMMINS
$174.40$159.32Precision engineered to keep your Cummins power running seamlessly Robust electrical connectivity designed for maximum durability under demanding conditions Optimized to maintain system efficiency...$174.40$159.32 -
CUMMINS 3971370 WIRING HARNESS Original OEM part
CUMMINS
$2,960.19$2,704.14Engineered precision delivering flawless connectivity for your Cummins power system. Durable design ensures long-lasting operation under the most demanding conditions. Original equipment...$2,960.19$2,704.14 -
CUMMINS 3971324 WIRING HARNESS Original OEM part
CUMMINS
$192.52$175.86Precision-engineered connection for unwavering power stability Ensures optimal signal transmission and system integrity Manufactured by Cummins to meet rigorous OEM standards Unlock true generator...$192.52$175.86 -
CUMMINS 3971321 WIRING HARNESS Original OEM part
CUMMINS
$1,441.39$1,316.71Cummins 3971321 - WIRING HARNESS MINS3971321 Discover the authentic 3971321 - WIRING HARNESS by Cummins at our store, your ultimate destination for genuine replacement parts. Our commitment to...$1,441.39$1,316.71 -
CUMMINS 3970540 WIRING HARNESS Original OEM part
CUMMINS
$1,801.38$1,645.56Precision-engineered connectivity for seamless power delivery Designed to withstand harsh conditions for extended service life Guaranteed genuine OEM Cummins component for perfect fit and...$1,801.38$1,645.56 -
CUMMINS 3970378 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part
CUMMINS
$1,865.24$1,703.90Engineered for precision and reliability in every connection Enhances communication between control modules for optimal engine performance Durable design to withstand harsh operational...$1,865.24$1,703.90 -
CUMMINS 3970377 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part
CUMMINS
$1,642.54$1,500.46Cummins 3970377 - EXTERNAL CONTROL MODULE WIRING HARNESS MINS3970377 Discover the authentic 3970377 - EXTERNAL CONTROL MODULE WIRING HARNESS by Cummins, SKU "MINS3970377," exclusively at our store...$1,642.54$1,500.46 -
CUMMINS 3970310 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part
CUMMINS
$1,643.24$1,501.10Cummins 3970310 - EXTERNAL CONTROL MODULE WIRING HARNESS MINS3970310 Find the authentic Cummins 3970310 - EXTERNAL CONTROL MODULE WIRING HARNESS, SKU MINS3970310, at our store. Engineered to...$1,643.24$1,501.10 -
CUMMINS 3970309 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part
CUMMINS
$2,128.89$1,944.74Engineered for excellence in every connection Precision-fit wiring harness guarantees optimal control module communication Durability designed to withstand demanding operating environments 100%...$2,128.89$1,944.74 -
CUMMINS 3969933 WIRING HARNESS Original OEM part
CUMMINS
$1,284.69$1,173.57Precision-engineered wiring harness designed for flawless power flow and system integrity Durable construction to withstand harsh environments and ensure continuous operation Authentic OEM Cummins...$1,284.69$1,173.57 -
CUMMINS 3969929 WIRING HARNESS Original OEM part
CUMMINS
$902.83$824.73Precision-engineered connectivity for seamless power delivery Durable construction to withstand harsh operating conditions Certified OEM component guaranteeing perfect compatibility CUMMINS 3969929...$902.83$824.73 -
CUMMINS 3969928 WIRING HARNESS Original OEM part
CUMMINS
$470.47$429.78Engineered to maintain uncompromising connection integrity under demanding conditions Designed to enhance electrical efficiency and system responsiveness Certified genuine OEM part from Cummins,...$470.47$429.78 -
CUMMINS 3969789 WIRING HARNESS Original OEM part
CUMMINS
$1,047.13$956.55Experience uncompromising reliability engineered to keep your Cummins power running smoothly Designed for flawless electrical connectivity ensuring optimal engine performance Durable, high-quality...$1,047.13$956.55 -
CUMMINS 3969775 WIRING HARNESS Original OEM part
CUMMINS
$1,591.79$1,454.10Engineered for precision and durability to keep your power system running flawlessly Optimizes electrical connectivity, enhancing overall engine efficiency and safety Manufactured as a genuine...$1,591.79$1,454.10 -
CUMMINS 3969771 WIRING HARNESS Original OEM part
CUMMINS
$1,442.70$1,317.91Cummins 3969771 - WIRING HARNESS MINS3969771 Discover the superior quality of the Cummins 3969771 - WIRING HARNESS at our online store, your ultimate destination for authentic replacement parts...$1,442.70$1,317.91 -
CUMMINS 3969688 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part
CUMMINS
$2,718.44$2,483.29Cummins 3969688 - EXTERNAL CONTROL MODULE WIRING HARNESS MINS3969688 Find faultless functionality with the genuine Cummins 3969688 - EXTERNAL CONTROL MODULE WIRING HARNESS, SKU MINS3969688, for your...$2,718.44$2,483.29 -
CUMMINS 3969631 WIRING HARNESS Original OEM part
CUMMINS
$95.30$87.06Cummins 3969631 - WIRING HARNESS MINS3969631 Explore the seamless functionality of the authentic 3969631 - WIRING HARNESS from Cummins, ensuring precision and reliability. With our store, you can...$95.30$87.06 -
CUMMINS 3969066 WIRING HARNESS Original OEM part
CUMMINS
$3,291.19$3,006.51Engineered for uncompromising reliability and seamless connectivity. Precision-manufactured wiring harness ensuring optimal signal transmission. Durable construction tailored for long-term...$3,291.19$3,006.51 -
CUMMINS 3968886 WIRING HARNESS Original OEM part
CUMMINS
$154.53$141.16Power your engine with precision crafted integration Exceptional durability ensures long-lasting electrical connectivity Engineered to meet exact Cummins OEM standards for optimal system...$154.53$141.16 -
CUMMINS 3968849 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part
CUMMINS
$1,781.25$1,627.17Experience precision-engineered connectivity designed to elevate generator control efficiency. Built to withstand demanding environments, ensuring consistent signal transmission and durability...$1,781.25$1,627.17 -
CUMMINS 3968721 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part
CUMMINS
$130.40$119.13Cummins 3968721 - EXTERNAL CONTROL MODULE WIRING HARNESS MINS3968721 Find the perfect solution for your outdoor equipment with the Cummins 3968721 - EXTERNAL CONTROL MODULE WIRING HARNESS. Our store...$130.40$119.13 -
CUMMINS 3968266 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part
CUMMINS
$2,460.18$2,247.38Engineered for seamless system integration to ensure uncompromised control accuracy and consistent signal transmission. Durable construction designed to withstand harsh operating environments and...$2,460.18$2,247.38 -
CUMMINS 3967934 WIRING HARNESS Original OEM part
CUMMINS
$174.00$158.95Empower your Cummins system with precision-engineered connectivity built to endure. Robust design guarantees consistent electrical flow to critical engine components. Factory-certified Cummins OEM...$174.00$158.95 -
CUMMINS 3966805 WIRING HARNESS Original OEM part
CUMMINS
$183.19$167.35Engineered for excellence: Experience flawless electrical connectivity essential to your Cummins system's optimal function. Durable construction: Built to withstand harsh conditions, ensuring...$183.19$167.35