This document contains parts lists and diagrams for engine components of Massey Ferguson 3425, 3435, 3445, and 3455 tractors, including: - The cylinder block, with lists of parts, part numbers, and quantities for each model. - The crankshaft, pistons, and connecting rods, again with detailed parts lists and diagrams for each model. - The cylinder head, with exploded diagrams and parts listings specific to each model. - A page showing the heater/starter switch components for the MF 3425 model. The document provides maintenance technicians with the information needed to service and repair engine parts for these Massey Ferguson tractor models. Parts are identified

1. Massey Ferguson
MF 3425 / 3435 / 3445 / 3455 VSF TRACTORS - 1637494 1637494
Engine & Equipment Page010-0000

2. Massey Ferguson
MF 3425 / 3435 / 3445 / 3455 VSF TRACTORS - 1637494 1637494
Engine & Equipment Page010-0000

3. MF 3425 / 3435 / 3445 / 3455 VSF TRACTORS - 1637494
S-WH01-002-A
27
1
12
11
13 26
17
10
2
15
28
22
21
19
23
6 25 20
5 7
4
3
8 29
Ref WH01S002-1 Page 010-0100

4. Massey Ferguson
MF 3425 / 3435 / 3445 / 3455 VSF TRACTORS - 1637494 1637494
Cylinder Block - M.F 3425 Page010-0100
Item Part Number Qty Description Comments
1 4225300M91 1 Kit,Cyl.Block
2 1 Cylinder Block (1)
Not serviced,order REF. 1
3 1 Bearing Cap (1)
Not serviced,order REF. 1
4 1 Bearing Cap (1)
Not serviced,order REF. 1
5 1 Bearing Cap (1)
Not serviced,order REF. 1
6 1 Bearing Cap (1)
Not serviced,order REF. 1
7 8 Ring (1)
Not serviced,order REF. 1
8 1476108X1 8 Screw (1)
9 4224829M1 1 Bush [A]
(1)
10 4224874M1 1 Plug (1)
11 363819X1 1 Plug (1)
12 731354M1 1 Plug (1)
13 4224873M1 2 Plug (1)
14 4224863M1 1 Plug [A]
(1)
15 4224866M1 1 Plug (1)
16 4225254M1 1 Water Pipe [A]
(1)
17 4224781M1 1 Plug (1)
18 4224865M1 1 Bolt [A]
(1)
19 4224717M1 3 Jet (1)
20 3641648M1 3 Screw (1)
21 4224936M1 2 Blanking Plate (1)
22 4224973M1 2 Gasket (1)
23 3638435M1 8 Screw (1)
24 4225132M1 1 Plug [A]
(1)
25 731996M1 1 Plug (1)
26 4224762M1 1 Housing
27 4224860M1 10 Bolt
28 4226132M1 1 Pressure Switch
29 4225132M1 1 Plug
FOOTNOTE [A] NOT ILLUSTRATED

5. MF 3425 / 3435 / 3445 / 3455 VSF TRACTORS - 1637494
S-WH01-001-B
25
1
24
13 12
2
15
17
10
18
27
14
26
28
20
9
23
19 22
7
21
6
5
4
8 3
16
11
Ref WH01S001-1 Page 010-0105

6. Massey Ferguson
MF 3425 / 3435 / 3445 / 3455 VSF TRACTORS - 1637494 1637494
Cylinder Block - M.F 3435/45/55 Page010-0105
Item Part Number Qty Description Comments
1 4225075M91 1 Kit,Cyl.Block
4225075E91 1 Cylinder Block [A]
2 1 Cylinder Block (1)
Not serviced,order REF. 1
3 1 Bearing Cap (1)
Not serviced,order REF. 1
4 2 Bearing Cap (1)
Not serviced,order REF. 1
5 1 Bearing Cap (1)
Not serviced,order REF. 1
6 1 Bearing Cap (1)
Not serviced,order REF. 1
7 733072M1 10 Ring (1)
8 1476108X1 10 Screw (1)
9 4224829M1 1 Bush (1)
10 4224874M1 1 Plug (1)
11 4224873M1 2 Plug (1)
12 363819X1 1 Plug (1)
13 731354M1 1 Plug (1)
14 4224863M1 1 Plug (1)
15 4224009M1 2 Dowel (1)
16 4224866M1 2 Plug (1)
17 4224781M1 1 Plug (1)
18 4224865M1 1 Bolt (1)
19 3641648M1 4 Screw (1)
20 4224717M1 4 Jet (1)
21 3638435M1 4 Screw (1)
22 4224936M1 1 Blanking Plate (1)
23 4224973M1 1 Gasket (1)
24 4224762M1 1 Housing
25 4224860M1 10 Bolt
26 4224782M1 1 Plug
27 4225132M1 1 Plug
28 4226132M1 1 Pressure Switch
FOOTNOTE [A] STANDARD EXCHANGE

7. MF 3425 / 3435 / 3445 / 3455 VSF TRACTORS - 1637494
S-WH02-001-A
1
4 5
19
2
8
7
6
20
21
3
9 14
17
13
15
11
12
16
18
10
Ref WH02S001-1 Page 010-0110

8. Massey Ferguson
MF 3425 / 3435 / 3445 / 3455 VSF TRACTORS - 1637494 1637494
Crankshaft, Piston & Connecting Rods - M.F 3425 Page010-0110
Item Part Number Qty Description Comments
1 4225301M91 1 Kit, Crankshaft
2 1 Crankshaft (1)
Not serviced,order REF. 1
3 4225305M91 1 Kit, Bearing (1)
4 4225306M91 1 Kit, Bearing (1)
5 747128M1 2 Thrust Washer (1)
735742M1 2 Washer Thickness (+) 0.007"
6 747129M1 2 Thrust Washer (1)
735743M1 2 Washer Thickness (+) 0.007"
7 4224833M1 1 Gear
8 70905845 1 Key
9 4225019M91 3 Kit, Piston/Ring
10 1 Piston (9)
Not serviced,order REF. 9
11 1 Piston Pin (9)
Not serviced,order REF. 9
12 4222135M1 2 Circlip (9)
13 4225072M91 1 Kit, Piston Ring (9)
4225858M91 1 Kit, Ring Thickness (+) 0,50 mm
4225859M91 1 Kit, Ring Thickness (+) 1,00 mm
14 4225016M91 1 Kit, Conrod Grade L
4225015M91 1 Kit, Conrod Grade K
4225014M91 1 Kit, Conrod Grade J
4225013M91 1 Kit, Conrod Grade H
4225012M91 1 Kit, Conrod Grade G
4225011M91 1 Kit, Conrod Grade F
15 1 Conrod (14)
Not serviced,order REF. 14
16 1 Rod End (14)
Not serviced,order REF. 14
17 4224827M1 1 Bush (14)
18 4224864M1 2 Bolt (14)
19 4225250M1 1 Pulley
20 4222401M1 1 Block
21 748074M1 3 Screw

9. MF 3425 / 3435 / 3445 / 3455 VSF TRACTORS - 1637494
S-WH02-002-B
5
4
9
10
2
1
11 6
7
8
3
19
16
17
12 18
13
20
14
15
Ref WH02S002-1 Page 010-0115

10. Massey Ferguson
MF 3425 / 3435 / 3445 / 3455 VSF TRACTORS - 1637494 1637494
Crankshaft, Piston & Connecting Rods - M.F 3435/45/55 Page010-0115
Item Part Number Qty Description Comments
1 4225086M91 1 Kit, Crankshaft MF 3435
4225085M91 1 Kit, Crankshaft MF 3445/55
2 1 Crankshaft (1)
Not serviced,order REF. 1
3 4225059M91 1 Kit, Bearing (1)
4225060M91 X Kit, Bearing Thickness (+) 0.010"
4225061M91 X Kit, Bearing Thickness (+) 0.020"
4225062M91 X Kit, Bearing Thickness (+) 0.030"
4 4225063M91 1 Kit, Bearing (1)
4225064M91 X Kit, Bearing Thickness (+) 0.010"
4225065M91 X Kit, Bearing Thickness (+) 0.020"
4225066M91 X Kit, Bearing Thickness (+) 0.030"
5 747128M1 2 Thrust Washer (1)
735742M1 X Washer Thickness (+) 0.007"
6 747129M1 2 Thrust Washer (1)
735743M1 X Washer Thickness (+) 0.007"
7 70905845 1 Key (1)
8 4224833M1 1 Gear
9 4222867M1 1 Pulley,Crank
10 4222401M1 1 Block
11 748074M1 3 Screw
12 4225018M91 4 Kit, Piston/Ring MF 3435
4225019M91 4 Kit, Piston/Ring MF 3445/55
13 1 Piston (12)
Not serviced,order REF. 12
14 1 Piston Pin (12)
Not serviced,order REF. 12
15 4225135M1 2 Washer (12)
16 4225073M91 1 Kit, Piston Ring (12)
MF 3435
4225072M91 1 Kit, Piston Ring (12)
MF 3445/55
17 4225011M91 4 Kit, Conrod Grade F
4225012M91 4 Kit, Conrod Grade G
4225013M91 4 Kit, Conrod Grade H
4225014M91 4 Kit, Conrod Grade J
4225015M91 4 Kit, Conrod Grade K
4225016M91 4 Kit, Conrod Grade L
18 1 Piston Rod (17)
Not serviced,order REF. 17
19 4224827M1 1 Bush (17)
20 4224864M1 2 Bolt (17)

11. MF 3425 / 3435 / 3445 / 3455 VSF TRACTORS - 1637494
S-WH03-002-A
1
22
22
21 10
16
16
15
15
13
13
11
14
14
4
4
7
24
24
23
23
6
18
19
8
9
2
5
3
17
12
20
Ref WH03S002-1 Page 010-0120

12. Massey Ferguson
MF 3425 / 3435 / 3445 / 3455 VSF TRACTORS - 1637494 1637494
Cylinder Head - M.F 3425 Page010-0120
Item Part Number Qty Description Comments
1 4225299M91 1 Kit, Cyl. Head
2 1 Cylinder Head (1)
Not serviced,order REF. 1
3 4224895M1 3 Insert (1)
4 4223987M1 6 Guide (1)
5 4224896M1 3 Insert (1)
6 376606X1 3 Plug (1)
7 363819X1 3 Plug (1)
8 4222043M1 3 Plug (1)
9 4224009M1 2 Dowel (1)
10 4224867M1 5 Screw (1)
11 4224868M1 3 Screw (1)
12 4224847M1 3 Inlet Valve (1)
13 4225538M1 6 Kit, Service (1)
14 4224856M1 6 Spring (1)
15 4224898M1 6 Cap (1)
16 4222141M1 12 Cotter (1)
17 4224846M1 3 Exhaust Valve (1)
18 4224884M1 1 Plug (1)
19 4224752M1 1 O Ring (1)
20 4225388M1 1 Head Gasket
21 4225314M1 1 Connection
22 376606X1 3 Plug
23 4224933M1 2 Support
24 3637139M1 4 Screw

13. MF 3425 / 3435 / 3445 / 3455 VSF TRACTORS - 1637494
S-WH03-001-A
24
23
1
19
16 13
13
12
12
10
10
8
18
11
11
15
3
3 21
21
4 20
2
7
6
5
14
9
22
17
Ref WH03S001-1 Page 010-0125

14. Massey Ferguson
MF 3425 / 3435 / 3445 / 3455 VSF TRACTORS - 1637494 1637494
Cylinder Head - M.F 3435/45/55 Page010-0125
Item Part Number Qty Description Comments
1 4225077M91 1 Kit, Cyl. Head
2 1 Cylinder Head (1)
Not serviced,order REF. 1
3 4223987M1 8 Guide (1)
4 376606X1 1 Plug (1)
5 4224895M1 4 Insert (1)
6 4224896M1 4 Insert (1)
7 4222043M1 2 Plug (1)
8 363819X1 4 Plug (1)
9 4224847M1 4 Inlet Valve (1)
10 4225538M1 8 Kit, Service (1)
11 4224856M1 8 Spring (1)
12 4224898M1 8 Cap (1)
13 4222141M1 16 Cotter (1)
14 4224846M1 4 Exhaust Valve (1)
15 4224752M1 1 O Ring (1)
16 4224884M1 1 Plug (1)
17 4225850M1 1 Head Gasket Repairs and replaces 4225140M1
18 4224867M1 7 Screw
19 4224868M1 3 Screw
20 4225268M1 1 Bracket
21 3637139M1 4 Screw
22 4224933M1 1 Support
23 4225314M1 1 Connection
24 376606X1 1 Plug

15. MF 3425 / 3435 / 3445 / 3455 VSF TRACTORS - 1637494
S-WH13-001-B
4
5
6
7
8
3
2
1
11
12
10
9
Ref WH13S001-1 Page 010-0130

16. Massey Ferguson
MF 3425 / 3435 / 3445 / 3455 VSF TRACTORS - 1637494 1637494
Heater/Starter Switch - M.F 3425 Page010-0130
Item Part Number Qty Description
1 4225288M1 1 Insulator
2 3637247M1 1 Screw
3 4225249M1 1 Terminal
4 4225287M1 1 Bar
5 4224813M1 3 Spark Plug
6 3640346M1 1 Nut
7 4225235M1 1 Washer
8 344107X1 1 Washer
9 4224819M1 1 Sender
10 4224850M1 1 Cable
11 356039X1 1 Plug
12 2.7099.930.0 1 Thermostat

17. MF 3425 / 3435 / 3445 / 3455 VSF TRACTORS - 1637494
S-WH13-002-B
2
1
3
4
8
7
5
6
Ref WH13S002-1 Page 010-0135

18. Massey Ferguson
MF 3425 / 3435 / 3445 / 3455 VSF TRACTORS - 1637494 1637494
Heater/Starter Switch - M.F 3435/45/55 Page010-0135
Item Part Number Qty Description
1 4224813M1 4 Spark Plug
2 4225164M1 1 Bar
3 4224884M1 1 Plug
4 4224752M1 1 O Ring
5 4224819M1 1 Sender
6 4224850M1 1 Cable
7 365332X1 1 Plug
8 2.7099.930.0 1 Thermostat

19. MF 3425 / 3435 / 3445 / 3455 VSF TRACTORS - 1637494
S-WH04-001-A
1
15
11
14
12
13
10
9
5
8
6
7
19
18
3
17
16
2
4
Ref WH04S001-1 Page 010-0140

20. Massey Ferguson
MF 3425 / 3435 / 3445 / 3455 VSF TRACTORS - 1637494 1637494
Rocker Arm - M.F 3425 Page010-0140
Item Part Number Qty Description Comments
1 4225289M91 1 Rocker Shaft
2 4225290M91 1 Rocker Shaft (1)
3 1 Rocker Shaft (2)
Not serviced,order REF. 2
4 4224780M1 2 Plug (2)
5 4225020M91 3 Rocker (1)
6 1 Rocker (5)
Not serviced,order REF. 5
7 1 Button (5)
Not serviced,order REF. 5
8 376123X1 1 Nut (5)
9 4223933M1 1 Screw (5)
10 4224855M1 2 Spring (1)
11 4225021M91 3 Rocker (1)
12 1 Rocker (11)
Not serviced,order REF. 11
13 1 Button (11)
Not serviced,order REF. 11
14 376123X1 1 Nut (11)
15 4223933M1 1 Screw (11)
16 3638812M1 2 Circlip (1)
17 4224720M1 2 Washer (1)
18 4224742M1 1 Screw (1)
19 4224743M1 2 Screw (1)

21. MF 3425 / 3435 / 3445 / 3455 VSF TRACTORS - 1637494
S-WH04-002-B
1
11
15
14
12
13
10
9
8
5
6
7
19
18
3
4
2
17
16
Ref WH04S002-1 Page 010-0145

22. Massey Ferguson
MF 3425 / 3435 / 3445 / 3455 VSF TRACTORS - 1637494 1637494
Rocker Arm - M.F 3435/45/55 Page010-0145
Item Part Number Qty Description Comments
1 4225022M91 1 Rocker Shaft Ass
2 4225023M91 1 Rocker Shaft (1)
3 1 Rocker Shaft (2)
Not serviced,order REF. 2
4 4224780M1 2 Plug (2)
5 4225020M91 4 Rocker (1)
6 1 Rocker (5)
Not serviced,order REF. 5
7 1 Pad (5)
Not serviced,order REF. 5
8 376123X1 1 Nut (5)
9 4223933M1 1 Screw (5)
10 4224855M1 3 Spring (1)
11 4225021M91 4 Rocker (1)
12 1 Rocker (11)
Not serviced,order REF. 11
13 1 Pad (11)
Not serviced,order REF. 11
14 376123X1 1 Nut (11)
15 4223933M1 1 Screw (11)
16 3638812M1 2 Circlip (1)
17 4224720M1 2 Washer (1)
18 4224742M1 1 Screw (1)
19 4224743M1 3 Screw (1)

23. MF 3425 / 3435 / 3445 / 3455 VSF TRACTORS - 1637494
S-WH10-002-A
1
10 13
9
8
4 14
5
6
7
2
29
3
11
12 23
28
27 24 26 25
21
16
17
15
19 30
20
18
22
Ref WH10S002-1 Page 010-0150

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25. Massey Ferguson
MF 3425 / 3435 / 3445 / 3455 VSF TRACTORS - 1637494 1637494
Lubricating Oil Filler & Breather - M.F 3425 Page010-0150
Item Part Number Qty Description Comments
1 4225298M1 1 Cyl. Head Cover
2 1 Cyl. Head Cover (1)
Not serviced,order REF. 1
3 4225269M1 1 Joint. (1)
4 4224723M1 8 Screw (1)
5 4225000M1 1 Diaphragm (1)
6 4224996M1 1 Cap (1)
7 4224857M1 1 Spring (1)
8 4224931M1 1 Cover (1)
9 4225236M1 4 Screw (1)
10 4224997M1 1 Cap (1)
11 4225246M1 1 Valve (1)
12 4224735M1 2 Screw (1)
13 4225286M1 1 Cyl. Head Cover
14 3637090M1 3 Screw
15 4225039M1 1 Lub.Oil Filler
16 1 Body (15)
Not serviced,order REF. 15
17 4222437M1 1 O Ring (15)
18 3641889M1 1 Cap (15)
19 1 Cap (18)
Not serviced,order REF. 18
20 3641231M1 1 O Ring (18)
21 3637095M1 1 Screw
22 3637102M1 1 Screw
23 4225043M1 1 Breather Pipe
24 1 Tail Pipe (23)
Not serviced,order REF. 23
25 4224972M1 1 Gasket (23)
26 4224723M1 2 Screw (23)
27 4224748M1 1 O Ring (23)
28 4225384M1 1 Hose
29 3641405M1 1 Hose Clip
30 745489M1 1 Bracket

26. MF 3425 / 3435 / 3445 / 3455 VSF TRACTORS - 1637494
S-WH10-003-A
12
11
10
9
8
7
6
5
1
4
2
3 18
15
14
16
13 17
23
24
22
20
19
21
25
Ref WH10S003-1 Page 010-0155