21586516 Wiring Harness | Genuine Volvo Penta Part

🔧 Product Description

Factory engine/EVC wiring harness built with the Volvo Penta connector layout, branch lengths and conductor routing required across the listed D3, D4, D6, D8, D11 and D13 marine installations. It carries power, earth and communication circuits without altering the original control-system architecture.

🚤 Compatibility

• Engine Family: D, IPS
• HP Range: 110-435 HP

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta engine and EVC wiring harness
• OEM connector bodies, terminal positions and branch routing
• Supports power, sensor, control and network communication circuits
• Used across propulsion, marine auxiliary and IPS-linked installations
• Application must be confirmed against engine product number and serial number
• Engine type: Volvo Penta electronically controlled 5-cylinder and 6-cylinder diesel marine propulsion, marine auxiliary and IPS installations

🔌 Function

Provides the original electrical path between engine sensors, actuators, control modules, power supplies and the EVC network.

⚠️ Common Signs of Failure

• Intermittent EVC communication or engine alarms
• Loss of power or earth to one or more connected components
• Corroded, loose, heat-damaged or pushed-back terminals
• Open-circuit, short-circuit or high-resistance faults
• Engine, steering or control functions operating intermittently

🛠️ 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

📦 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, D6-330A-F, D6-370A-F, D6-330D-F, D6-370D-F, D6-300A-F, D6-300D-F, D6-300I-F, D6-310D-E, D6-330I-F, D6-370I-F, D6-435D-E, D6-435D-F, D6-400A-F, D6-435I-F
• Volvo Penta D13C1-A MP, D13C2-A MP, D13C3-A MP, D13C4-A MP, D13B-E MH, D13B-E MH (FE), D13B-N MH, D13B-N MH (FE), D13C6-A MP, D13C1-A MH, D13C2-A MH, D13C5-A MP
• Volvo Penta D4-260A-F, D4-260D-E, D4-260D-F, D4-260I-F, D4-300A-F, D4-300D-E, D4-300D-F, D4-180I-F, D4-225I-F, D4-300I-F, D4-225A-F
• Volvo Penta D3-110I-H, D3-140A-H, D3-170A-H, D3-200A-H, D3-220A-H, D3-150I-H, D3-170I-H, D3-200I-H, D3-220I-H, D3-140I-H
• Volvo Penta D8A5-A MH, D8A6-A MH, D8A1-A MP, D8A2-A MP, D8A3-A MP, D8A4-A MP
• Volvo Penta D11B3-A MP, D11B4-A MP, D11B2-A MP, D11B1-A MP
• Volvo Penta IPS-F
• Volvo Penta 8.1IPSCE-Q