The OEM AYP 146154 is a kit to replace both 3 post and 4 post solenoids using jumper wires. Oregon® 33-331 is the three post solenoid Oregon 33-334 is the four post solenoid
Solenoid 1/4" diameter bolts, 3 post
Internal ground with screw terminal 50% duty 80 amp capacity Includes new spade converter
33-332
Snapper 1-9544 Gravely 7277
Solenoid
5/16-24 studs, 3 pole style, 12 volt, grounded base
33-336
Exmark 513075
Solenoid 5/16" large posts , 3/16" small posts Externally grounded
33-335
MTD 725-1426 Snapper 1-8817
Solenoid
90º mount , 3 post Slide connector terminal 1/4" diameter bolt 50% duty, 80 amp capacity MTD (1990 & newer)
33-337
MTD 725-0771
Solenoid 90º mounting bracket, 1/4"-20 studs Exact match for all MTD models (1985–1991)