DEERE 644B PARTS

John-Deere 644B Transmission Parts, Torque Converter Parts, Axle Parts, Differential Parts, Planetary Parts

Transmission Assy. # ???????   Allison # TT2421-1

REAR AXLE DISCONNECT (REMANUFACTURED) (TT2421-1 SERIES TRANSMISSION) (SUB FOR AT57454) (SUB AT73769)

used prior s/n# 227405

Transmission Assy. # AT73769   Allison # TT2421-1

REAR AXLE DISCONNECT (REMANUFACTURED) (TT2421-1 SERIES TRANSMISSION)

used s/n# 227406 to 339876

Transmission Assy. # AT63591   Allison # TT3420-1

used s/n# 339877 and after

Torque Converter section

Turbine first # AT38764   Allison # TT2421-1

used prior to s/n# 339876 

Turbine Second # AT40677   (SUB AT103783)

used prior to s/n# 339876

Stator # T39998

used prior to s/n# 339876

Pump # AT38766 sub for # AT64328

used prior to s/n# 339876

Input Accessory Drive Gear ?? teeth # AT52190

(SUB FOR T39987) (WITH VANE PUMP) (WITH REAR AXLE DISCONNECT)

used prior to s/n# 227405

Input Accessory Drive Gear ?? teeth # T39990

(WITH GEAR PUMP) (WITH REAR AXLE DISCONNECT) (SUB T81059 AND T81060)

used s/n# 227406 and after

Input Accessory Drive Gear 40 teeth # T81059

(WITH GEAR PUMP) (WITHOUT REAR AXLE DISCONNECT)

used s/n# 227406 and after

Input Accessory Drive Gear ?? teeth # AT52190

(SUB FOR T39987) (WITH VANE PUMP) (WITHOUT REAR AXLE DISCONNECT)

used prior to s/n# 229446

Input Accessory Drive Gear ?? teeth # T39990

(WITH GEAR PUMP) (WITHOUT REAR AXLE DISCONNECT) (SUB T81059 AND T81060)

used s/n# 229447 and after

Input Accessory Drive Gear 40 teeth # T81059

(WITH GEAR PUMP) (WITHOUT REAR AXLE DISCONNECT)

used s/n# 229447 and after

Turbine first # AT64326   Allison # TT3420-1

used s/n # 339877 and after

Turbine Second # AT64327   Allison # TT3420-1

used s/n # 339877 and after

Stator # T39998

Allison # TT3420-1

used s/n # 339877 and after

 Pump # AT38766 sub for # AT64328

Allison # TT3420-1

used s/n # 339877 and after

Input Accessory Drive Gear 40 teeth # T67507

Allison # TT3420-1

used s/n # 339877 and after

Torque Converter Housing section

Pump Drive Gear # T30921   42 teeth

(WITH VANE LOADER PUMP) (42 TEETH) (WITH REAR AXLE DISCONNECT)

used prior to s/n# 227405

Pump Drive Gear # T29927   44 teeth

(WITH GEAR LOADER PUMP) (44 TEETH) (WITH REAR AXLE DISCONNECT) (10" LONG)

used s/n# 227406 and after

Pump Drive Gear # T30921   42 teeth

(WITH GEAR LOADER PUMP) (44 TEETH) (WITH REAR AXLE DISCONNECT) (10" LONG)

used prior to s/n# 229446

Pump Drive Gear # T67508   44 teeth

(WITH GEAR LOADER PUMP) (44 TEETH) (WITHOUT REAR AXLE DISCONNECT) (11-1/2" LONG)

used s/n# 229447 and after

Second Turbine Drive Gear # T58943   46 teeth

(SUB FOR T38669)

used prior to s/n# 339876

Converter Ground Sleeve # T27922

used prior to s/n# 339876

First Turbine Drive Gear # T27929   24 teeth

used prior to s/n# 339876

Converter Housing # AT38762

used prior to s/n# 339876

Pump Drive Gear # T67508   42 teeth   Allison # TT3420-1

used s/n # 339877 and after

Second Turbine Drive Gear # T75240   46 teeth   Allison # TT3420-1

(SUB FOR T67510 AND T73766)

used s/n # 339877 and after

Converter Ground Sleeve # T67509   Allison # TT3420-1

used s/n # 339877 and after

First Turbine Drive Gear # T67512   24 teeth   Allison # TT3420-1

used s/n # 339877 and after

Converter Housing # AT38762   Allison # TT3420-1

used s/n # 339877 and after

Axle, Differential & Planetary Parts

Axle Assy. #

Axle Housing # AR103757   marked # R76533

(MARKED R76533) (SUB FOR AR66744) (MARKED R55616 OR R55617)

used prior to s/n# 339876

Axle Housing # AR68460  

(MARKED R55616 OR R55617) (SUB AR103756)

used s/n# 339877 to XXXXXX

Axle Housing # AR103756

used s/n# XXXXXX and after

Differential Assy. #   front

Gear Set ¨Crown & Pinion¨ #

(MARKED R56288 OR R80048) (MARKED R64069) (SUB RE18896)

Gear Set ¨Crown & Pinion¨ # RE18896

 (SHAFT MARKED R80048) (GEAR MARKED R64069) WITH SPIRAL BEVEL PINION SHAFT, GEAR, SPECIAL WASHERS, CAP SCREWS AND SHIMS, (SUB FOR AR66736 AND AR98727, THIS APPLICATION)

Side Gear # R59289

(SUB FOR R56287)

Pinion Spider Gear # R42444

Spider # R58426

 (SUB FOR R56441)

Flange Yoke #

Differential Assy. # rear

Gear Set ¨Crown & Pinion¨ # RE11401

(SHAFT MARKED R56289) (GEAR MARKED R51973) WITH SPIRIAL BEVEL PINION SHAFT GEAR, SPECIAL WASHERS, CAP SCREWS AND SHIMS, (SUB FOR AR66737, THIS APPLICATION)

Pinion Spider Gear # R42444

Spider Shaft # R58426

(SUB FOR R56441)

Flange Yoke # R56304 # R107600 sub # RE45317

Planetary Carrier Assy. #

Carrier # R69444

(4.39O" BASIC RADIUS CENTER TO PINION SHAFT CENTER) (SUB FOR R56292) (SUB R82920, R82921 AND R52389)

used prior to s/n# 001007

Carrier # R82920

(4.390" BASIC RADIUS CENTER TO PINION SHAFT CENTER)

used s/n# 001008 and after

Carrier # R69451

(4.444"BASIC RADIUS CENTER TO PINION SHAFT CENTER)

used prior to s/n# 004999

Carrier # R82922

(4.444" BASIC RADIUS CENTER TO PINION SHAFT CENTER)

used s/n# 005000 and after

Pinion Gear # R56286   18 teeth

(USE WITH R69444 OR R82920)

Pinion Gear # R57053   21 teeth

(USE WITH R69541 OR R82922)

Pinion Shaft # R92826 sub for # R63115

Sun Gear Shaft # R56301   sub # R73013

Sun Gear # R56300

 (USE WITH R69444 OR R82920)

Sun Gear # R57052

(USE WITH R82922)

Ring Gear # R76535   51 teeth   1.75¨ thick   cast # R56291 

used prior to s/n# 339876

Ring Gear # R76536   57 teeth

used s/n# 339537 and after

Axle Shaft # R74992   spindle

(SUB FOR R56285 AND R69200)

Hydraulic Pump Assy. # AR56160