ST 120 (3212 HR) - Troy-Bilt Tractor (SN: 0100101 - 0199999) HYDROSTATIC DIFFERENTIAL ASSEMBLY Parts Diagram

Tractor

HYDROSTATIC DIFFERENTIAL ASSEMBLY Parts Diagram

  • Title

1

Cover, Subassembly (S/A)

$

$

Not available

2

Shaft, Input, S/A

$

$

Not available

3

Bearing Input Shaft

$

$

Not available

4

Ring, Retaining, External

$

$

Not available

5

MTD 1757372

Ring, Retaining, Internal

$

$

Not available

6

MTD 1757373

Seal, Input Shaft

$

$

Not available

7

MTD 1757374

Seal Control Shaft

$

$

Not available

8

Housing, S/A CW

$

$

Not available

9

Piston, Dampening, S/A

$

$

Not available

10

Seal, Brake Shaft

$

$

Not available

11

Plug. Socket Pipe

$

$

Not available

12

Adapter Reservoir, 3/8 I D Tube

$

$

Not available

13

Pump Rotor-Ball, S/A

$

$

Not available

14

Cam Ring, S/A

$

$

Not available

15

Insert

$

$

Not available

16

Control Shaft S/A

$

$

Not available

17

MTD 1757375

Spring, Dump Valve

$

$

Not available

18

MTD 1757376

Bracket, Dump Valve

$

$

Not available

19

Dowel

$

$

Not available

20

Gasket, Cover

$

$

Not available

21

Button

$

$

Not available

22

MTD 1757377

O-Ring Dump Valve Bracket

$

$

Not available

23

Gasket, Axle Housing

$

$

Not available

24

Screw, 1/4-20 Hex Flange

$

$

Not available

25

MTD 1757378

Gasket, Valve Cover

$

$

Not available

26

Cover, Valve

$

$

Not available

27

Axle Housing, S/A-B

$

$

Not available

28

Shaft, Axle

$

$

Not available

29

Retaining Ring, Internal

$

$

Not available

30

Housing, Axle-B

$

$

Not available

31

Seal, Axle Shaft

$

$

Not available

32

Bearing, Axle Shaft

$

$

Not available

33

Retaining Ring External

$

$

Not available

34

Washer, Thrust

$

$

Not available

35

Spacer (Thick-PB)

$

$

Not available

35A

Washer, Thrust (DUPE)

$

$

Not available

35A

Bearing, Thrust (DL/PB)

$

$

Not available

36

Screw, 1/4-20 Self Tap

$

$

Not available

37

Spacer (Thin-PB or DUPE)

$

$

Not available

38

Brake Gear

$

$

Not available

39

Drive

$

$

Not available

40

Motor Rotor-Ball, A & B S/A, 1 BT

$

$

Not available

?41

Differential Lock/Parking Brake Assembly

$

$

Not available

42

Plate, Wear

$

$

Not available

43

Ring Gear, A & B S/A, 54T

$

$

Not available

44

Brake Shaft-A (PB)

$

$

Not available

44A

Brake Shaft-A (DUPE)

$

$

Not available

45

Brake Shaft - B (PS)

$

$

Not available

45A

Brake Shaft - B (DUPE)

$

$

Not available

46

Planetary Gear, First A & B S/A

$

$

Not available

47

Sun Gear, First, 18T

$

$

Not available

48

Primary Carrier, A & B S/A 18T

$

$

Not available

49

Pint Gear, A & B S/A, First, 1ST

$

$

Not available

50

Planetary Gear, Second, A & B S/A

$

$

Not available

51

Sun Gear, Second 18T

$

$

Not available

52

Secondary Carrier, A & B S/A

$

$

Not available

53

Pint Gear, A &sc B S/A, Second, 18T

$

$

Not available

54

Washer, Thrust

$

$

Not available

55

Axle Housing, S/A-A

$

$

Not available

56

Housing, Axle-A

$

$

Not available

57

Plug, Magnetic

$

$

Not available

58

Screw, 1/4-20 Hex Flange

$

$

Not available

59

Cover, (PB or DUPE)

$

$

Not available

60

Boot, Dust

$

$

Not available

61

Nut, Dump Valve

$

$

Not available

62

Adapter, Reservoir, 3/8 I D Tube

$

$

Not available

63

MTD 1757381

O-Ring

$

$

Not available

Troy-Bilt 1757380

Gasket Overhaul Kit

Note: Includes items 20, 23 & 25

$

$

Currently unavailable