21707914 Wiring Harness | Genuine Volvo Penta Part

🔧 Product Description

Alternator-system wiring harness used across Volvo Penta TAD16 industrial engines. It connects the 28-volt alternator, engine harness and charging/monitoring circuits using the factory terminals and protective loom.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD1640VE-B
• Volvo Penta TAD1641VE-B
• Volvo Penta TAD1642VE-B
• Volvo Penta TAD1641VE
• Volvo Penta TAD1642VE
• Volvo Penta TAD1643VE
• Volvo Penta TAD1650VE
• Volvo Penta TAD1660-62VE
• Volvo Penta TAD1662VE EU5

• Engine Family: TAD

⚙️ Key Features

• Genuine Volvo Penta electrical component
• Factory connector keying and wire lengths
• Marine-grade insulation and terminal protection
• Designed for the original control-system generation
• Serial-specific connector and routing check required

🔌 Function

Carries power, ground, communication or sensor signals between the connected engine and control-system components.

⚠️ Common Signs of Failure

• Batteries not charging, or the charge warning staying on with the engine running
• Charging voltage low or unstable at the batteries
• Terminals at the alternator discoloured, corroded or burnt
• Insulation chafed or heat-damaged where the loom passes the alternator or the hot side of the engine
• Connector at the alternator loose or no longer latching

🛠️ Service Notes

• Supersedes 881787, so an order placed against the old number is filled with this harness
• Check the alternator output and the main earth connections before condemning the harness, as a poor earth gives identical symptoms

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21707914 → Supersedes 881787

OEM / Related Numbers

• 881787 earlier number superseded by this part
• Associated 28 V / 110 A alternator: 21429786

Other-Brand OEM Numbers

• VOE21707914

Aftermarket / Verified Equivalents

• Alternator bracket: 3829091
• Associated belt: 20430376

📦 Condition

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