John Deere Original Equipment Spacer - R51409.
Spacer - ROLLER.
Fits the following John Deere models: 1020, 1120, 1030, 1130, 1630, 1520, 1530, 1640(430,000-), 2040(430,000-), 2040S(430,000-), 1830, 2030, 2130, 2020, 2030, 2040, 2140(430,000-), 2240, 2510, 2520, 2630, 2640, 2840, 2940, 300B, 3010 Grove & Orchard, Row-Crop Standard & Utility Tractors (s.n. -049,999), 301A, 302, 3020, 302A, 3030, 3130, 3040(S.N. 430000- ) , 3140 (S.N. 430000- ), 4000 and 4020 (s.n. 201,000- ), 4010, 401B, 401C, 401D, 4020(-200,999),4040S, 4240S, 4230, 4320, 4350, 440, 440A and 440B, 4430, 4520, 4620, 4630, 4640, 4840, 5010, 5020, 540, 540A, 6030, 8440, 8640, JD300, JD301, JD400, JD401, JD700.
This is a OEM John Deere part.
Thanks for looking!