873603 Wiring Harness | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta wiring harness for AD31/SX installations, from the Cables and Fuses group. It weighs 0.515 kg and is listed for 8 applications across the TMD, AD and TAMD ranges. The AD31/SX marking is the identifying detail on this loom.

🚤 Compatibility

Typically suits:

• Volvo Penta TMD31L-A
• Volvo Penta AD31L-A
• Volvo Penta AD31P-A
• Volvo Penta TAMD31L-A
• Volvo Penta TAMD31M-A
• Volvo Penta TAMD31P
• Volvo Penta TAMD31P-A
• Volvo Penta TAMD31S

• Engine Family: TMD, AD, TAMD

⚙️ Key Features

• For AD31/SX installations
• 0.515 kg
• Listed for 8 applications
• Covers TMD, AD and TAMD engines

🔌 Function

Links the engine and drive electrical circuits in one pre-made loom with the correct connectors for the AD31/SX installation.

⚠️ Common Signs of Failure

• Intermittent instrument or control circuits
• Corrosion inside the connector shells
• Insulation chafed where the loom crosses a bracket or bulkhead
• Pins pushed back or slack in a housing
• Fault that changes when the loom is flexed by hand

🛠️ Service Notes

• Confirm the installation is AD31/SX before ordering — that marking is what separates this loom
• Note the routing and clipping before removing the old harness

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging