{"product_id":"21187847-wiring-harness-genuine-volvo-penta","title":"21187847 Wiring Harness | Genuine Volvo Penta Part","description":"\u003ch2\u003e\n 🔧 Product Description\n\u003c\/h2\u003e\n\u003cp\u003e\n Genuine engine wiring harness for selected Volvo Penta 5.0-litre and 5.7-litre petrol marine engines. Part number 21187847 replaces earlier harness 3848901.\n\u003c\/p\u003e\n\u003ch2\u003e\n ⚙️ Key Features\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Current replacement for harness 3848901\n \u003c\/li\u003e\n \u003cli\u003e\n  Documented 5.0L and 5.7L petrol-engine application\n \u003c\/li\u003e\n \u003cli\u003e\n  Complete factory engine harness\n \u003c\/li\u003e\n \u003cli\u003e\n  Marine-sealed sensor and actuator connectors\n \u003c\/li\u003e\n \u003cli\u003e\n  Engine suffix and ECM version control fitment\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 🔌 Function\n\u003c\/h2\u003e\n\u003cp\u003e\n The harness distributes battery and ignition power and carries sensor, injector, ignition and control signals across the engine.\n\u003c\/p\u003e\n\u003ch2\u003e\n ⚠️ Common Signs of Failure\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Intermittent no-start\n \u003c\/li\u003e\n \u003cli\u003e\n  Multiple unrelated sensor or injector codes\n \u003c\/li\u003e\n \u003cli\u003e\n  Misfire caused by wiring faults\n \u003c\/li\u003e\n \u003cli\u003e\n  Chafed or heat-damaged conductors\n \u003c\/li\u003e\n \u003cli\u003e\n  Fault changes when the harness is moved\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  21187847 → Supersedes 3848901\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  3848901 earlier number superseded by this part\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":53381356028196,"sku":"839419E","price":2332.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8115\/7924\/files\/original_e8be13f0-ee90-4e63-8bbf-1c707b4536f8.jpg?v=1788060477","url":"https:\/\/www.sawleysautoandmarine.com.au\/products\/21187847-wiring-harness-genuine-volvo-penta","provider":"Sawley's Auto and Marine","version":"1.0","type":"link"}