{"product_id":"alternator-for-john-deere-compact-utility-tractors-1989-1996","title":"Alternator for John Deere 670, 770, 1070, 4100, 4110 \u0026 4115 Tractors - 12V","description":"\u003cdiv style=\"font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.6; color: #333333; max-width: 900px; margin: 0 auto;\"\u003e\n\u003cdiv style=\"background-color: #2c3e50; color: #ffffff; padding: 40px 20px; text-align: center; border-radius: 6px 6px 0 0;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; color: #ffffff;\"\u003eAlternator for John Deere 670, 770, 1070, 4100, 4110 \u0026amp; 4115 Tractors - 12V\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 16px; color: #bdc3c7;\"\u003eJohn Deere Compact Utility Tractors - Permanent Magnet, 12V\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 25px; border: 1px solid #e0e0e0; border-top: none; background-color: #ffffff;\"\u003e\n\u003cp style=\"margin-top: 0;\"\u003eThis permanent magnet alternator is a direct replacement for the John Deere compact utility tractor range, covering the 670, 770 and 1070 built from 1989 to 1996 as well as the later 2305, 2320, 2520, 4010, 4100, 4110 and 4115 models. It is built to OEM specifications and bolts straight into the existing mounting points without modification.\u003c\/p\u003e\n\u003cp style=\"margin-top: 0;\"\u003eIt is rated at 12 volts and replaces the Kokusan-built unit carried under John Deere numbers AM877957 and AM880339. The permanent magnet design keeps the unit compact and removes the field windings and slip rings that are the usual wear points on a conventional alternator.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; margin-top: 20px; gap: 20px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px;\"\u003e\n\u003ch3 style=\"font-size: 20px; color: #2c3e50; margin-bottom: 10px;\"\u003eKey Features\u003c\/h3\u003e\n\u003cul style=\"padding-left: 20px; margin: 0;\"\u003e\n\u003cli\u003e12-Volt permanent magnet alternator\u003c\/li\u003e\n\u003cli\u003eDirect OEM fit for John Deere compact utility tractors\u003c\/li\u003e\n\u003cli\u003eReplaces John Deere AM877957 and AM880339\u003c\/li\u003e\n\u003cli\u003eCovers the 670, 770 and 1070 from 1989-1996 plus the 4000 series\u003c\/li\u003e\n\u003cli\u003e12-month warranty as standard\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px;\"\u003e\n\u003ch3 style=\"font-size: 20px; color: #2c3e50; margin-bottom: 10px;\"\u003eTechnical Specs\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 15px;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 10px; background-color: #ecf0f1; border: 1px solid #e0e0e0;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"text-align: left; padding: 10px; background-color: #ecf0f1; border: 1px solid #e0e0e0;\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eVoltage\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eType\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003ePM Alternator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eLester Reference\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e10944\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eReference ID\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e553420\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 30px;\"\u003e\n\u003ch3 style=\"font-size: 20px; color: #2c3e50; margin-bottom: 10px;\"\u003eVehicle Fitment Guide\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; color: #7f8c8d; margin-top: 0;\"\u003eYears shown are the overall coverage span for this part. Please confirm against the OEM part number on your original unit before ordering.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 15px;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 10px; background-color: #ecf0f1; border: 1px solid #e0e0e0;\"\u003eMake \u0026amp; Model\u003c\/th\u003e\n\u003cth style=\"text-align: left; padding: 10px; background-color: #ecf0f1; border: 1px solid #e0e0e0;\"\u003eYears\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eJohn Deere 670 Compact Utility Tractor\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e1989-1996\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eJohn Deere 770 Compact Utility Tractor\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e1989-1996\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eJohn Deere 1070 Compact Utility Tractor\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e1989-1996\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eJohn Deere 2305 \/ 2320 \/ 2520 Compact Utility Tractors\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eAll years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eJohn Deere 4010 \/ 4100 \/ 4110 \/ 4115 Compact Utility Tractors\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eAll years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 30px;\"\u003e\n\u003ch3 style=\"font-size: 20px; color: #2c3e50; margin-bottom: 10px;\"\u003eOEM Part Number Cross Reference\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; color: #7f8c8d; margin-top: 0;\"\u003eAftermarket replacement. OEM part numbers are listed for reference only.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 15px;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 10px; background-color: #ecf0f1; border: 1px solid #e0e0e0;\"\u003ePart Number\u003c\/th\u003e\n\u003cth style=\"text-align: left; padding: 10px; background-color: #ecf0f1; border: 1px solid #e0e0e0;\"\u003eManufacturer \/ Brand\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eAM877957\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eJohn Deere\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eAM880339\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eJohn Deere\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eGP9178\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eKokusan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e10944\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eLester\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eAPM0008\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eArrowhead\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e1400-0584\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eAftermarket interchange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 30px; background-color: #fcfcfc; border: 1px solid #e0e0e0; border-radius: 6px; padding: 20px;\"\u003e\n\u003ch3 style=\"font-size: 20px; color: #2c3e50; margin-bottom: 10px;\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4 style=\"font-size: 16px; color: #2c3e50; margin: 15px 0 5px;\"\u003eWill this alternator fit my John Deere compact tractor without modification?\u003c\/h4\u003e\n\u003cp style=\"margin: 0;\"\u003eYes, this is a direct OEM-fit replacement built to the original specification, so no modification is required for installation - it uses the same mounting points as the unit it replaces.\u003c\/p\u003e\n\u003ch4 style=\"font-size: 16px; color: #2c3e50; margin: 15px 0 5px;\"\u003eWhat's included?\u003c\/h4\u003e\n\u003cp style=\"margin: 0;\"\u003eYou will receive one complete alternator unit, ready to fit. Your existing pulley, belt and wiring connector should be reused as normal.\u003c\/p\u003e\n\u003ch4 style=\"font-size: 16px; color: #2c3e50; margin: 15px 0 5px;\"\u003eHow can I tell my old alternator has failed?\u003c\/h4\u003e\n\u003cp style=\"margin: 0;\"\u003eCommon signs include a battery warning light on the dash, dimming or flickering lights, or a battery that will not hold charge even after a full charge cycle.\u003c\/p\u003e\n\u003ch4 style=\"font-size: 16px; color: #2c3e50; margin: 15px 0 5px;\"\u003eWhat voltage is this alternator?\u003c\/h4\u003e\n\u003cp style=\"margin: 0;\"\u003eThis is a 12-volt permanent magnet alternator, matching the original specification used across this John Deere compact tractor range.\u003c\/p\u003e\n\u003ch4 style=\"font-size: 16px; color: #2c3e50; margin: 15px 0 5px;\"\u003eMy model isn't listed - will it still fit?\u003c\/h4\u003e\n\u003cp style=\"margin: 0;\"\u003eCompare the number stamped on your existing alternator against AM877957, AM880339 or GP9178 in the table above. If it matches one of those, this unit is the correct replacement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 30px; text-align: center; font-size: 14px; color: #7f8c8d; border-top: 1px solid #eee; padding-top: 20px;\"\u003eDispatched from the UK · 12-month warranty · Fitment support from our technical team\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Moto-Electrical","offers":[{"title":"Default Title","offer_id":59237177000281,"sku":"400-58016","price":98.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/9268\/8473\/files\/apixordfj__91885.1637673305.jpg?v=1788136676","url":"https:\/\/4drive.co.uk\/products\/alternator-for-john-deere-compact-utility-tractors-1989-1996","provider":"4Drive","version":"1.0","type":"link"}