{"product_id":"21644931-wiring-harness-genuine-volvo-penta","title":"21644931 Wiring Harness | Genuine Volvo Penta Part","description":"\u003ch2\u003e\n 🔧 Product Description\n\u003c\/h2\u003e\n\u003cp\u003e\n Main engine wiring harness used in the cables-and-fuses system of Volvo Penta TAD1250-TAD1252VE industrial engines. The harness distributes ECU power, sensor signals, actuator commands and fused circuits through the original sealed connectors.\n\u003c\/p\u003e\n\u003ch2\u003e\n 🚤 Compatibility\n\u003c\/h2\u003e\n\u003cp\u003e\n Typically suits:\n\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Volvo Penta TAD1250VE\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD1251VE\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD1252VE\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD1250-52VE\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n \u003cli\u003e\n  \u003cstrong\u003e\n   Engine Family:\n  \u003c\/strong\u003e\n  TAD\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n ⚙️ Key Features\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Genuine Volvo Penta TAD12 engine harness\n \u003c\/li\u003e\n \u003cli\u003e\n  Current replacement for earlier harness 3883266\n \u003c\/li\u003e\n \u003cli\u003e\n  Factory connector keying and wire lengths\n \u003c\/li\u003e\n \u003cli\u003e\n  Used with engine-control, sensor and fuse circuits\n \u003c\/li\u003e\n \u003cli\u003e\n  Marine\/industrial sealed loom construction\n \u003c\/li\u003e\n \u003cli\u003e\n  Engine type: 12.1-litre inline-six electronically controlled industrial diesel\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 🔌 Function\n\u003c\/h2\u003e\n\u003cp\u003e\n Carries power, ground and control signals between the ECU, sensors, actuators, relays and engine interface.\n\u003c\/p\u003e\n\u003ch2\u003e\n ⚠️ Common Signs of Failure\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Multiple unrelated sensor fault codes\n \u003c\/li\u003e\n \u003cli\u003e\n  Loss of ECU communication\n \u003c\/li\u003e\n \u003cli\u003e\n  Chafed loom or broken conductors\n \u003c\/li\u003e\n \u003cli\u003e\n  Voltage drop under load\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 🛠️ Service Notes\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  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\n \u003c\/li\u003e\n \u003cli\u003e\n  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\n \u003c\/li\u003e\n \u003cli\u003e\n  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\n \u003c\/li\u003e\n \u003cli\u003e\n  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\n \u003c\/li\u003e\n \u003cli\u003e\n  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\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 🔄 Supersession \u0026amp; Cross Reference\n\u003c\/h2\u003e\n\u003ch3\u003e\n OEM Supersession Chain\n\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n  21644931 → Supersedes 3883266 → Supersedes 3841518 → Supersedes 3817866\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n OEM \/ Related Numbers\n\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n  3883266 earlier number superseded by this part\n \u003c\/li\u003e\n \u003cli\u003e\n  3841518 earlier number superseded by this part\n \u003c\/li\u003e\n \u003cli\u003e\n  3817866 earlier number superseded by this part\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n Other-Brand OEM Numbers\n\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n  VOE21644931\n \u003c\/li\u003e\n \u003cli\u003e\n  VOE3883266\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 📦 Condition\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Genuine Volvo Penta part\n \u003c\/li\u003e\n \u003cli\u003e\n  Brand new\n \u003c\/li\u003e\n \u003cli\u003e\n  Supplied in original or equivalent packaging\n \u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Volvo Penta","offers":[{"title":"Default Title","offer_id":53384327561508,"sku":"880338T","price":4376.43,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8115\/7924\/files\/original_20af79af-4911-429b-a021-973e9dae5527.jpg?v=1777188518","url":"https:\/\/www.sawleysautoandmarine.com.au\/products\/21644931-wiring-harness-genuine-volvo-penta","provider":"Sawley's Auto and Marine","version":"1.0","type":"link"}