HMMWV 6.5L Engine Wiring Harness – P/N 12446828 – NSN 6150-01-412-3192 – Detroit Diesel 6.5 NA
$200.00
Original HMMWV engine wiring harness for Detroit Diesel 6.5L naturally aspirated engines used in A2-series Humvee vehicles.
Part Number 12446828 (NSN 6150-01-412-3192). This military-spec harness distributes electrical power and signals between the vehicle electrical system and engine components including the starter, alternator, sensors, and glow plug system.
Features a military circular bulkhead connector, braided protective loom, and multiple engine component branches designed for harsh operating environments.
Commonly used on M1025A2, M1035A2, M1043A2, M1045A2, M1097A2, and M997A2 HMMWV vehicles.
1 in stock
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Description
This listing is for an original engine compartment wiring harness used on HMMWV A2 series vehicles equipped with the Detroit Diesel 6.5L naturally aspirated engine.
The harness distributes electrical power and signals between the vehicle electrical system and the engine components, allowing proper operation of the starting system, charging system, sensors, and glow plug system.
This is a military-spec harness assembly designed for Humvee vehicles and built to withstand the vibration, temperature, and environmental conditions typical of military service.
Identification
Vehicle Platform
HMMWV / Humvee A2 Series
Engine Type
Detroit Diesel 6.5L Naturally Aspirated
Part Number (PN)
12446828
NSN
6150-01-412-3192
Component Type
Engine compartment wiring harness
Approximate configuration
• ~30 conductors
• ~15 connector branches for engine components
Compatible HMMWV Models
This harness is commonly used on A2-series HMMWV vehicles, including:
• M1025A2
• M1035A2
• M1043A2
• M1045A2
• M1097A2
• M997A2
Compatibility should be verified before installation.
Function
The engine harness distributes electrical power and control signals to key engine systems.
Typical connections include:
Starting and Charging System
• Starter solenoid
• Alternator
Engine Sensors
• Coolant temperature sensor
• Oil pressure sender
• Engine speed / tach signal
• Fan clutch control
Cold Start System
• Glow plug controller
• Glow plug wiring branches
Other Connections
• Engine grounding points
• Protective control box
• Main vehicle body harness interface
Engine-to-Body Interface Connector
The large green military circular connector (Cannon / Amphenol type) visible in the photos is the engine-to-body interface connector.
This connector links the engine harness to the vehicle wiring harness located on the right rear firewall area of the engine compartment.
Through this connector the engine receives:
• 24V vehicle power
• Engine start signal
• Instrument gauge signals
• Glow plug control signals
Construction
• Military-spec wiring
• Protective braided loom covering
• Sealed military connectors
• Designed for high vibration and harsh environments
Condition
Military surplus component.
• Shows normal wear from service or storage
• Wiring insulation and connectors appear intact
• Sold as shown in photos
Please review images carefully before purchase.
Ideal For
• HMMWV restorations
• Replacement of damaged engine harness
• Military vehicle maintenance
• Spare parts inventory
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