John Deere AR68304 Starter Solenoid

The John Deere AR68304 is a 12-volt starter solenoid designed for Delco-type starting motors used across a wide range of John Deere agricultural tractors, combines, and industrial machinery. It functions as a high-current relay to engage the starter drive and close the motor circuit. The solenoid features a three-terminal configuration (battery, start, and ground) and is engineered to meet OEM specifications for pull-in and hold-in coil performance. It replaces multiple legacy part numbers including R11240, R11242, AT17980, and Delco service numbers 1114356 and 1114458. The unit is constructed with a corrosion-resistant plated steel housing and copper contact disc for reliable operation in harsh under-hood environments. Typical applications include the 3000, 4000, and 5000 series tractors powered by 3179, 4239, and 4276 series diesel engines.