GEAR REDUCTION STARTER FITS FORD TRACTOR 3500 3550 3600 3610 3900 3CYL DIESEL. Replaces Part Numbers & Specifications. LUCAS 26395H, 26925, 26925A, 27500, 27500A, 27500B, 27500C, 27500D, 27500E UNIT TYPE: CASE, LUCAS, FORD STARTER FAMILY: LUCAS M50 TYPE: OSGR VOLTAGE: 12 VOLTS ROTATION: CW TEETH/SPLINES: 10 TEETH/SPLINES PINION/SPLINES OD: 40MM / 1.575IN MOUNTING HOLE 1: 10.6MM ID UNTHREADED MOUNTING HOLE 2: 10.6MM ID UNTHREADED MOUNTING HOLE 3: 10.6MM ID UNTHREADED APPROXIMATE WEIGHT: 15 LBS. / 6.8 KG. As a parts distributor we mostly sell aftermarket parts (any OEM parts would be noted as such). PLEASE VERIFY YOUR OEM PART NUMBER FROM YOUR ORIGINAL UNIT TO HELP ENSURE FITMENT. The sole responsibility of Marine Parts Distributors – if any – shall be the replacement of defective products as stated above. It is the responsibility of the customer to verify the correct application information prior to purchasing any product from Marine Parts Distributors. It is the responsibility of the customer to verify the correct application information prior to purchasing any product from MARINE PARTS DISTRIBUTORS. If an order must be canceled or changed, please contact the service department as soon as possible. 8AM-6PM EST Customer Service.