21422563 Wiring Harness | Genuine Volvo Penta Part

🔧 Product Description

Genuine engine wiring harness used in selected Volvo Penta D13B marine propulsion electrical systems. It provides the factory branch routing and connector allocation for sensors, actuators, power distribution and engine-control equipment.

🚤 Compatibility

Typically suits:

• Volvo Penta D13C2-A MP
• Volvo Penta D13B-A MP
• Volvo Penta D13B-H MP
• Volvo Penta D13C5-A MP

• Engine Family: D

⚙️ Key Features

• D13B marine electrical-system harness
• Documented D13B-A MP application
• Factory connector keying and circuit allocation
• Marine-grade insulation and terminal sealing
• Interfaces with the engine control and monitoring system

🔌 Function

The harness distributes electrical power and carries sensor, actuator and communication signals through the D13B engine system.

⚠️ Common Signs of Failure

• Multiple unrelated engine fault codes
• Open or short circuits
• Heat or abrasion damage

🛠️ 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