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Main Thrust Bearing Fits John Deere 1979-1992 STD SERIES 840/940 300 RT21139

Replaces Part Numbers & Specifications

OEM PART NUMBERS:
• John Deere: RT21139 (Primary OEM reference (STD))
• John Deere: RT21132 (Related size-family variant (.010))
• John Deere: RT21134 (Related size-family variant (.020))
• John Deere: RT21136 (Related size-family variant (.030))

SPECIFICATIONS:
• Bearing Location: Main Thrust
• Set Type: Thrust Set
• Bearing Size: Standard
• Bearing Size Code: STD
• Oversize Basis: Standard

Product Notice





JOHN DEERE TRACTORS:
• John Deere 840/940/1040/1140 John Deere 300 Series / 3029 2.9L Diesel (1979-1992)
• John Deere 1350/1550/1750/1850 John Deere 300 Series / 3029 2.9L Diesel (1979-1992)
• John Deere 2150/2155/2255/2355N John Deere 300 Series / 3029 2.9L Diesel (1979-1992)

JOHN DEERE BACKHOES AND DOZERS:
• John Deere 310/350B John Deere 300 Series / 3029 2.9L Diesel (1983-1991)

NOTES:
• Fits 300 SERIES engine family. Confirm bearing size code STD before install. Thrust bearing only; verify end-play specification. Verify OEM number and engine serial/build break before ordering.

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