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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ONAN A044H853 FUEL PUMP HARNESS Original ONAN/CUMMINS OEM part
ONAN
$709.88$648.48Precision engineered to power your generator with uncompromising reliability. Robust design ensures consistent fuel pump operation under demanding conditions. Seamless fit for optimum system...$709.88$648.48 -
ONAN A044G337 GENSET HARNESS Original ONAN/CUMMINS OEM part
ONAN
$496.54$453.59Precision engineered to maximize your generator's efficiency and reliability Robust construction ensures seamless electrical integration even in demanding environments Designed to maintain system...$496.54$453.59 -
ONAN A044G146 CONTROL HARNESS Original ONAN/CUMMINS OEM part
ONAN
$1,047.26$956.67Experience uncompromising reliability with the ONAN A044G146 CONTROL HARNESS, engineered for seamless communication between your generator's control systems. Designed for perfect compatibility, this...$1,047.26$956.67 -
ONAN A044F575 CONTROL HARNESS Original ONAN/CUMMINS OEM part
ONAN
$2,067.92$1,889.04Empower your generator’s heartbeat with precision-crafted control Engineered for flawless electrical connectivity, reducing downtime Durability designed to withstand rigorous operational...$2,067.92$1,889.04 -
ONAN A044F563 CONTROL HARNESS Original ONAN/CUMMINS OEM part
ONAN
$1,190.47$1,087.50Experience unmatched reliability with the precision-engineered ONAN A044F563 CONTROL HARNESS Designed to maintain seamless electrical connections for consistent generator control Durable...$1,190.47$1,087.50 -
ONAN A043G986 GENERATOR ELECTRIC HARNESS Original ONAN/CUMMINS OEM part
ONAN
$886.58$809.89Engineered to Empower Every Connection Precision-crafted for seamless electrical integration Durable design for sustained generator efficiency 100% genuine OEM component from Onan, guaranteeing...$886.58$809.89 -
ONAN A042U476 ENGINE HARNESS Original ONAN/CUMMINS OEM part
ONAN
$0.50$0.46Precision-crafted to preserve Onan generator integrity and performance Durable wiring harness optimized for consistent electrical flow and system reliability Engineered to withstand demanding...$0.50$0.46 -
ONAN A041Y909 HARNESS Original ONAN/CUMMINS OEM part
ONAN
$11,044.40$10,089.06Dependable Connectivity for Peak Generator Performance Engineered for Long-Lasting Durability and Optimal Functionality Built to OEM Specifications, Guaranteeing Perfect Compatibility 100% Genuine...$11,044.40$10,089.06 -
ONAN A041Y130 HEATER HARNESS Original ONAN/CUMMINS OEM part
ONAN
$912.98$834.01Precision power connection for dependable heating Engineered to maintain system integrity and safety Certified OEM quality from ONAN for guaranteed compatibility Trust the legacy of Cummins...$912.98$834.01 -
ONAN A041X459 CONTROL HARNESS Original ONAN/CUMMINS OEM part
ONAN
$866.49$791.54Engineered for seamless integration and lasting reliability Efficiently transmits control signals to optimize generator operation Durable design ensures consistent performance under demanding...$866.49$791.54 -
ONAN A041V178 HEATER HARNESS Original ONAN/CUMMINS OEM part
ONAN
$788.50$720.30Experience unmatched reliability with the original ONAN A041V178 Heater Harness designed to keep your generator system operating flawlessly. Built to withstand demanding environments, this heater...$788.50$720.30 -
ONAN A041V001 ENGINE HARNESS Original ONAN/CUMMINS OEM part
ONAN
$1,581.99$1,445.15Depend on Precision: Designed to seamlessly interface with your generator’s engine for optimal signal transmission and durability. Enhanced Functionality: Ensures efficient electrical flow, reducing...$1,581.99$1,445.15 -
ONAN A041N337 ENGINE HARNESS Original ONAN/CUMMINS OEM part
ONAN
$7,471.45$6,825.17Trust in precision-engineered connections that guarantee seamless power delivery. Durability designed to withstand the toughest environments, ensuring long-lasting operation. Fully OEM-certified by...$7,471.45$6,825.17 -
ONAN A041B803 DIRECT CURRENT HARNESS Original ONAN/CUMMINS OEM part
ONAN
$443.24$404.90Precision engineered for seamless power flow Ensures consistent electrical connectivity under demanding conditions Robust construction for enduring generator performance 100% genuine OEM part from...$443.24$404.90 -
ONAN A040T087 CONTROL HARNESS Original ONAN/CUMMINS OEM part
ONAN
$155.42$141.97Precision-engineered for uncompromised power system integration Durable construction ensuring consistent signal transmission Guaranteed genuine Cummins Onan OEM component for flawless fit ONAN...$155.42$141.97 -
ONAN A040E681 EXTENSION HARNESS Original ONAN/CUMMINS OEM part
ONAN
$3.98$3.64Experience uninterrupted power with parts engineered to perform. Precision-crafted wiring harness ensures flawless connectivity and durability. Designed to extend wiring capabilities without...$3.98$3.64 -
ONAN A034W073 CONTROL HARNESS Original ONAN/CUMMINS OEM part
ONAN
$13.38$12.23Dependable connection crafted to maintain optimal engine control and communication Precision-engineered wiring harness ensuring durable electrical integrity under demanding conditions 100% genuine...$13.38$12.23 -
ONAN A034E896 FUEL PUMP HARNESS Original ONAN/CUMMINS OEM part
ONAN
$171.77$156.91Precision engineered for seamless integration and optimal fuel delivery Durable construction designed to withstand harsh operating environments Certified genuine OEM part, guaranteeing compatibility...$171.77$156.91 -
ONAN A034D588 CONTROL HARNESS Original ONAN/CUMMINS OEM part
ONAN
$2,999.17$2,739.74Engineered for precision: Seamlessly bridge your generator’s control functions with the ONAN A034D588 CONTROL HARNESS. Enhanced durability: Built to withstand challenging environments and continuous...$2,999.17$2,739.74 -
ONAN A034D584 CONTROL HARNESS Original ONAN/CUMMINS OEM part
ONAN
$2,576.48$2,353.62Depend on Original Engineering Excellence: Experience consistent power management with the ONAN A034D584 CONTROL HARNESS. Durability That Stands the Test of Time: Designed for long-lasting operation...$2,576.48$2,353.62 -
ONAN A034D581 CONTROL HARNESS Original ONAN/CUMMINS OEM part
ONAN
$7,427.70$6,785.21Engineered to preserve the heart of your power system with uncompromising precision Optimized circuitry ensures flawless communication between critical generator components Durable construction for...$7,427.70$6,785.21 -
ONAN A032Z237 134872 JUMPER GAU HARNESS Original ONAN/CUMMINS OEM part
ONAN
$66.30$60.57Precision-engineered for seamless electrical connectivity Durable design ensures long-lasting operational stability 100% OEM component crafted by ONAN for exact fit and trusted performance ONAN...$66.30$60.57 -
CUMMINS 5575360 INJECTOR WIRING HARNESS Original OEM part
CUMMINS
$142.12$129.82Engineered for unmatched connectivity and durability Ensures seamless injector control for optimal engine operation Genuine OEM Cummins component designed for full compatibility CUMMINS 5575360...$142.12$129.82 -
CUMMINS 5575359 INJECTOR WIRING HARNESS Original OEM part
CUMMINS
$142.12$129.82Precision engineered to power your Cummins engine flawlessly Optimal electrical connectivity ensuring consistent fuel injection timing Durable design withstands harsh operating conditions and...$142.12$129.82 -
CUMMINS 5568837 WIRING HARNESS Original OEM part
CUMMINS
$85.58$78.18Precision engineered connectivity for uncompromised power delivery Robust design ensuring long-lasting electrical integrity Genuine OEM part from Cummins guaranteeing perfect fit and peak...$85.58$78.18 -
CUMMINS 5562266 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part
CUMMINS
$1,508.63$1,378.13Cummins 5562266 - EXTERNAL CONTROL MODULE WIRING HARNESS MINS5562266 Discover the genuine Cummins 5562266 - EXTERNAL CONTROL MODULE WIRING HARNESS at our online store. Our commitment to offering...$1,508.63$1,378.13 -
CUMMINS 5523010 EXTERNAL CONTROL MODULE WIRING HARNESS CUMMINS Genuine OEM Part
CUMMINS
$2,093.24$1,912.17The CUMMINS 5523010 External Control Module Wiring Harness is made from high-quality materials and is a genuine OEM component. It ensures accurate signal transmission between the external...$2,093.24$1,912.17 -
CUMMINS 5522733 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part
CUMMINS
$663.50$606.11Precision-engineered wiring harness for seamless external control integration Exceptional durability ensures consistent performance in demanding applications 100% genuine OEM Cummins component...$663.50$606.11 -
CUMMINS 5522732 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part
CUMMINS
$646.84$590.89Designed to optimize your power system with precision and dependability Robust external control module wiring harness engineered for seamless integration Ensures consistent signal transmission and...$646.84$590.89 -
CUMMINS 5483103 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part
CUMMINS
$3,543.07$3,236.60Precision engineered for uncompromised control Robust construction ensures enduring electrical integrity Designed to optimize system communication and performance Certified Genuine OEM part from...$3,543.07$3,236.60 -
CUMMINS 5480809 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part
CUMMINS
$3,549.12$3,242.12Cummins 5480809 - EXTERNAL CONTROL MODULE WIRING HARNESS MINS5480809 Upgrade your outdoor equipment with the genuine Cummins 5480809 - EXTERNAL CONTROL MODULE WIRING HARNESS, SKU MINS5480809. Our...$3,549.12$3,242.12 -
CUMMINS 5475063 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part
CUMMINS
$4,818.04$4,401.28Engineered for enduring precision, every connection counts Seamless integration with Cummins external control modules Constructed for robust durability under demanding conditions Guaranteed genuine...$4,818.04$4,401.28 -
CUMMINS 5475059 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part
CUMMINS
$3,695.84$3,376.15Engineered for precision and reliability, this wiring harness ensures uninterrupted control module communication. Designed to optimize electrical connectivity, it supports your engine’s peak...$3,695.84$3,376.15 -
CUMMINS 5473286 DATA EXTENSION HARNESS Original OEM part
CUMMINS
$883.73$807.29Experience precision-crafted connectivity built for Cummins systems Designed to maintain signal integrity and extend communication lines effectively Robust construction for enduring performance...$883.73$807.29 -
CUMMINS 5473285 DATA EXTENSION HARNESS Original OEM part
CUMMINS
$773.26$706.37Precision engineered to keep your Cummins power system connected and efficient Durable construction for reliable long-term data transmission Compatible and optimized for seamless integration with...$773.26$706.37 -
CUMMINS 5467846 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part
CUMMINS
$2,608.32$2,382.70Engineered Precision Meets Enduring Quality Optimized for seamless engine communication and control Robust wiring harness designed to withstand harsh environmental conditions Certified OEM genuine...$2,608.32$2,382.70 -
CUMMINS 5450754 WIRING HARNESS Original OEM part
CUMMINS
$489.46$447.12Unwavering Reliability engineered to maintain flawless electrical connectivity within your Cummins engine system. Precision Fit ensures effortless installation and consistent performance under...$489.46$447.12 -
CUMMINS 5450753 WIRING HARNESS Original OEM part
CUMMINS
$531.48$485.51Precision engineered for seamless power integration and unwavering reliability. Designed to withstand harsh operational conditions, ensuring consistent electrical connectivity. Optimizes engine...$531.48$485.51 -
CUMMINS 5449356 WIRING HARNESS Original OEM part
CUMMINS
$2,767.69$2,528.29Unmatched engineering precision powering lasting performance Robust wiring design ensuring flawless connectivity under all conditions Optimized for seamless integration with Cummins engine...$2,767.69$2,528.29 -
CUMMINS 5447654 WIRING HARNESS Original OEM part
CUMMINS
$1,267.02$1,157.42Precision engineered to keep your Cummins system flawlessly connected Durable design providing long-lasting electrical performance under demanding conditions Seamless plug-and-play installation for...$1,267.02$1,157.42