{"product_id":"qbp370948","title":"Garmin J1939 Cable, For GPSMAP 8400\/8600 Series, 10 m","description":"\u003ch6\u003eOverview\u003c\/h6\u003e\u003cp\u003eThe Garmin 010-12390-30 is a 10 m J1939 network cable that links compatible GPSMAP 8400 or 8600 series chartplotters to an SAE J1939 backbone for engine or generator monitoring on the chartplotter screen.\u003c\/p\u003e\u003cp\u003eUse it when your helm display needs to reach a J1939 network connection point in the engine room or near the generator without cobbling together shorter runs. It carries data for monitoring and integration, not power.\u003c\/p\u003e\u003ch6\u003eKey features\u003c\/h6\u003e\u003cul\u003e\n\u003cli\u003eConnects GPSMAP 8400 and 8600 series chartplotters to an SAE J1939 network for engine or generator monitoring\u003c\/li\u003e\n\u003cli\u003e10 m (32.8 ft) length for helm to engine room routing on many installations\u003c\/li\u003e\n\u003cli\u003eLets the chartplotter display the J1939 parameters your engine ECU or generator controller publishes\u003c\/li\u003e\n\u003cli\u003eLong run helps avoid mid-span extensions where moisture and vibration can work on extra connection points\u003c\/li\u003e\n\u003cli\u003eSupports clean cable management with proper strain relief and chafe protection through bulkheads\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch6\u003eCompatibility and fit\u003c\/h6\u003e\u003cp\u003eThis cable is intended for GPSMAP 8400 and 8600 series chartplotters that support a J1939 connection. Your vessel also needs an existing J1939 network from the engine or generator, set up with the correct backbone, termination, and network power for that system.\u003c\/p\u003e\u003cp\u003eIf your boat uses NMEA 2000 for instrument data, treat J1939 as a separate bus unless you have a dedicated gateway on board. The chartplotter can only display the data that is actually present on the J1939 network.\u003c\/p\u003e\u003ch6\u003eInstallation and setup\u003c\/h6\u003e\u003cp\u003eRoute the run with gentle bends and keep it clear of hot engine parts, exhaust components, and moving linkages. Support the cable regularly, add chafe protection where it passes through bulkheads, and leave service loops at the helm and network connection point so future troubleshooting is easier.\u003c\/p\u003e\u003cp\u003eOnce connected, configure the engine or generator monitoring pages on the chartplotter and verify values update with the engine running. If data does not appear, the cause is typically network configuration or the parameters available on the J1939 side.\u003c\/p\u003e\u003ch6\u003eOn-board use\u003c\/h6\u003e\u003cp\u003eThis setup fits boats that want engine or generator information on the main navigation display without adding another dedicated gauge at the helm. It also suits refits where a J1939 backbone is already in place and you need a straightforward 10 m run to the chartplotter.\u003c\/p\u003e","brand":"Garmin","offers":[{"title":"Default Title","offer_id":52269121241269,"sku":"QBP370948","price":119.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/8171\/1029\/files\/1299078_qbp370948.jpg?v=1771542003","url":"https:\/\/www.qualityboatparts.com\/products\/qbp370948","provider":"Quality Boat Parts","version":"1.0","type":"link"}