{"product_id":"starter-motor-28mt-series-osgr-12v-cw-10-tooth","title":"Starter Motor for John Deere Tractors \u0026 Marine Engines - Delco 28MT 12V CW","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;\"\u003eStarter Motor for John Deere Tractors \u0026amp; Marine Engines - Delco 28MT 12V CW\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 16px; color: #bdc3c7;\"\u003eDelco 28MT Series OSGR Starter - 12V, 3kW, CW, 10-Tooth\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 starter motor is a direct replacement in the Delco 28MT series, fitted across John Deere agricultural and industrial tractors, crawlers, lift trucks, skid steers and 4039\/4045 marine engines. It is built to OEM specifications for fit and function and bolts straight into the existing mounting points.\u003c\/p\u003e\n\u003cp style=\"margin-top: 0;\"\u003eIt is a 12-volt unit with clockwise (CW) rotation, a 10-tooth drive gear and a 3kW (4.02HP) output. The OSGR (Offset Gear Reduction) design uses a 4-terminal switch and a dry clutch drive with a wet clutch seal, with a 31.8mm OD drive gear (drive part 509410) and two 12mm unthreaded mounting holes, so the existing wiring and flywheel housing can be reused without modification.\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, 3kW output, Clockwise (CW) rotation\u003c\/li\u003e\n\u003cli\u003e10-Tooth drive gear\u003c\/li\u003e\n\u003cli\u003eDelco 28MT family, OSGR (Offset Gear Reduction) design\u003c\/li\u003e\n\u003cli\u003e4-Terminal switch, dry clutch with wet clutch seal\u003c\/li\u003e\n\u003cli\u003eTwo 12mm unthreaded mounting holes, B mounting configuration\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;\"\u003ePower Output\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e3kW (4.02HP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eRotation\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eCW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eTeeth\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eSeries \/ Family\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eDelco 28MT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eDrive Type\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eOSGR (Offset Gear Reduction), Dry Clutch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eSwitch\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e4-Terminal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eDrive Gear OD\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e31.8mm (1.252in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eMounting\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eConfiguration B, 2 holes, 12mm unthreaded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e10.01kg\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 6100 Agricultural Tractor (4-239 Diesel)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e1992-1996\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eJohn Deere 450E Crawler (4-219 Diesel)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e1986-1992\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eJohn Deere 455E Crawler\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e1982-1990\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eJohn Deere 4039DFM Marine Engine (3.9L)\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 4045DFM50 \/ 4045TFM Marine Engines (4.5L)\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 4045DFM70 \/ 4045TFM75 Marine Engines (4.5L)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e2004-2007\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eJohn Deere 482C Lift Truck\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e1986-1997\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eJohn Deere JD380 \/ JD480 \/ JD480A Lift Trucks (JD135G Gas, JD152D Diesel)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e1972-1982\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eJohn Deere JD480B Lift Truck (JD135G Gas, JD152D Diesel)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e1974-1981\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eJohn Deere JD480C Lift Truck (Diesel)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e1981-1986\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eJohn Deere 8875 Skid Steer Loader (61HP Turbo Diesel)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e1994-1998\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eJohn Deere 400G Industrial Tractor (4039D Diesel)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e1988-2005\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eJohn Deere 2640 Utility Tractor (276 Diesel)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e1976-1982\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;\"\u003eSE501400\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;\"\u003eRE62916\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;\"\u003eTY24305\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;\"\u003e10461471\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eDelco\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e10479628\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eDelco\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 starter motor fit without modification?\u003c\/h4\u003e\n\u003cp style=\"margin: 0;\"\u003eYes, this is a direct OEM-fit replacement built to the original Delco 28MT specification, so no modification is required for installation - the 4-terminal switch, 12mm mounting holes and 31.8mm drive gear match the original layout.\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 starter motor unit, ready to fit. Your existing wiring loom connects directly to the 4-terminal switch.\u003c\/p\u003e\n\u003ch4 style=\"font-size: 16px; color: #2c3e50; margin: 15px 0 5px;\"\u003eHow can I tell my old starter motor has failed?\u003c\/h4\u003e\n\u003cp style=\"margin: 0;\"\u003eCommon signs include a clicking noise when starting, a slow or labouring crank, smoke or a burning smell from the starter, or no response at all when the key is turned.\u003c\/p\u003e\n\u003ch4 style=\"font-size: 16px; color: #2c3e50; margin: 15px 0 5px;\"\u003eWhat does OSGR mean?\u003c\/h4\u003e\n\u003cp style=\"margin: 0;\"\u003eOSGR stands for Offset Gear Reduction - a starter design that uses reduction gearing to increase torque from a smaller, lighter motor, which is why the drive gear tooth count and OD matter when confirming fitment.\u003c\/p\u003e\n\u003ch4 style=\"font-size: 16px; color: #2c3e50; margin: 15px 0 5px;\"\u003eMy machine isn't listed - will this still fit?\u003c\/h4\u003e\n\u003cp style=\"margin: 0;\"\u003eCheck the number on your existing starter against SE501400, RE62916, TY24305, 10461471 or 10479628 in the table above. The 28MT was used very widely, so a matching number is the most reliable confirmation.\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":59237177983321,"sku":"410-12250","price":272.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/9268\/8473\/files\/zoom_John_Deere_Starter_Motor__5-13152_e8d49801-ee4d-4dbb-96d3-532f62d53e3b.jpg?v=1788102893","url":"https:\/\/4drive.co.uk\/products\/starter-motor-28mt-series-osgr-12v-cw-10-tooth","provider":"4Drive","version":"1.0","type":"link"}