21260206 Wiring Harness | Genuine Volvo Penta Part

🔧 Product Description

Genuine engine wiring harness used in a Volvo Penta cables-and-fuses installation. It provides the factory conductor sizes, branch lengths, terminal population and connector sealing required by the assigned engine-control and electrical configuration.

🚤 Compatibility

• Engine Family: D, IPS
• HP Range: 260-435 HP

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta engine harness
• Factory-moulded connectors and branch routing
• Marine- and industrial-grade insulation
• Carries power, sensor, actuator and control circuits
• Exact engine and option configuration controls fitment
• Quantity varies by assembly, most commonly one

🔌 Function

The harness distributes electrical power and carries sensor, actuator and control signals between the engine components and control system.

⚠️ Common Signs of Failure

• Intermittent starting or running faults
• Several unrelated circuit fault codes
• Open- or short-circuit readings
• Corroded or pushed-back connector terminals
• Heat, oil or abrasion damage
• Fault changes when the harness is moved

🛠️ Service Notes

• Compare the new harness with the old one before fitting — check the connector types, the number of pins and the branch lengths, and lay it out alongside the old loom to confirm every branch reaches its component
• Disconnect the batteries before unplugging or fitting a harness, and support the loom as you work so its weight never hangs on a connector or a bulkhead grommet
• Route it along the original path and secure it with the original clips and ties, clear of hot exhaust surfaces, sharp edges and anything that moves; leave a service loop at each connector rather than pulling a branch tight
• Push every connector home until the lock latches and protect the joints with a marine dielectric grease — an intermittent electrical fault is far more often a partly seated or salt-corroded pin than a broken wire
• Renewing the harness is the right repair where insulation is chafed, brittle or oil-soaked, or where corrosion has tracked inside the connector bodies; patch repairs in a damp engine bay tend to fail again, and any single conductor that is repaired should be joined with tinned marine cable of the same gauge, a proper crimp and adhesive-lined heat-shrink

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 21493366-21493370 - Related harness references by installation version
• 3593778 - Related wiring harness
• 949656 - O-rings
• 949659 - O-rings
• 21913841 - Plug
• 21611508 - Adapter
• 3886794 - Strainer
• 21611515 - Cover

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D6-330D-E, D6-370D-E, D6-330D-C, D6-370D-C, D6-330D-D, D6-370D-D, D6-330D-F, D6-370D-F, D6-300D-F, D6-310D-D, D6-310D-C, D6-310D-E, D6-435D-D, D6-435D-E, D6-435D-F, D6-435D-C
• Volvo Penta D4-260D-C, D4-260D-D, D4-260D-E, D4-260D-F, D4-300D-C, D4-300D-D, D4-300D-E, D4-300D-F
• Volvo Penta IPS-A, IPS-B, IPS-C, IPS-D, IPS-E, IPS-F
• Volvo Penta 8.1IPSCE-MF, 8.1IPSCE-P, 8.1IPSCE-Q