{"product_id":"for-john-deere-12v-distributor-coil-w-external-resistor-fit-3020-at10399-at14385","title":"For John Deere 12V Distributor Coil w\/External Resistor Fit 3020 AT10399 AT14385","description":"\u003ch2\u003eDistributor Coil for John Deere\u003c\/h2\u003e\u003cp\u003eThis 12V distributor coil with external resistor is an electrical component designed to generate the high voltage needed to fire the spark plugs in compatible John Deere engines, referencing OEM cross-reference numbers AT10399 and AT14385.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis 12V distributor coil with external resistor delivers reliable ignition performance for tractors and machinery. It is built as a direct replacement for the original coil, ensuring proper spark delivery to keep your engine running smoothly. This coil is intended for use in John Deere models that accept the AT10399 or AT14385 specification.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e12-volt primary circuit designed for standard electrical systems\u003c\/li\u003e\n\u003cli\u003eExternal resistor included to regulate current flow and protect the points\u003c\/li\u003e\n\u003cli\u003eOil-filled construction for consistent cooling and long service life\u003c\/li\u003e\n\u003cli\u003eMetal case with mounting bracket for secure installation\u003c\/li\u003e\n\u003cli\u003eCompatible with 6-cylinder and 4-cylinder gasoline engines using a distributor\u003c\/li\u003e\n\u003cli\u003eDirect replacement for OEM part numbers AT10399 and AT14385\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor John Deere 3020\u003c\/li\u003e\n\u003cli\u003efor John Deere 4020\u003c\/li\u003e\n\u003cli\u003efor John Deere 4000\u003c\/li\u003e\n\u003cli\u003efor John Deere 2520\u003c\/li\u003e\n\u003cli\u003efor John Deere 2440\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eReplaces a worn or failed coil during routine ignition service\u003c\/li\u003e\n\u003cli\u003eSupports reliable starting in cold weather conditions\u003c\/li\u003e\n\u003cli\u003eMaintains consistent firing under heavy load during field work\u003c\/li\u003e\n\u003cli\u003eUsed in agricultural tractors and industrial equipment with 12V systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResistor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eExternal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAT10399, AT14385\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrimary Resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.5 to 3.0 ohms (with resistor)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Ignition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDistributor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Do I need to keep the external resistor connected? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the external resistor must remain in the circuit to limit current through the coil and prevent premature failure of the contact points.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Will this coil work with a 6-volt system? \u003cstrong\u003eA:\u003c\/strong\u003e No, this coil is rated for 12-volt systems only. Using it on a 6-volt system will result in weak spark and poor performance.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Part Outfitters","offers":[{"title":"Default Title","offer_id":46611835977914,"sku":"ZZ3F05293","price":59.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/2476\/1786\/files\/s-l1600_31380a04-9909-409f-a8b2-e9f75c0d4761.jpg?v=1789011159","url":"https:\/\/partoutfitters.com\/products\/for-john-deere-12v-distributor-coil-w-external-resistor-fit-3020-at10399-at14385","provider":"Part Outfitters","version":"1.0","type":"link"}