This is a very practical manual

1. Massey Ferguson
6445 / 6455 TRACTORS - 1637454 1637454
Engine & Equipment Page010-0000

2. Massey Ferguson
6445 / 6455 TRACTORS - 1637454 1637454
Engine & Equipment Page010-0000

3. MF 6445 / 6455 TRACTORS - 1637454
1-WA06-010-G
40 38
30
23 42
42
41
4128
28
28
28
28
28
39
29 29
29
29
29
29
1
26
33
33
33
50
7
31 9
9
24
2
8
6
3
4
5 17 37
11
43 12 36
35 10
15
16 27 22
20
18
19
21
14
13
34 25 32
Ref WA061010-1 Page 010-0005

4. Massey Ferguson
6445 / 6455 TRACTORS - 1637454 1637454
Engine & Equipment Page010-0005
Item Part Number Qty Description Comments
1 3787337M2 1 Engine [A]
MF 6445
PEL RG37915
3787338M2 1 Engine MF 6445
PEL RG37832
3787339M1 1 Engine [A,B]
MF 6455
PEL RG37916
3787340M1 1 Engine [B]
MF 6455
PEL RG37826
4275990M2 1 Engine [A]
MF 6455
PEL RG38121
4275989M2 1 Engine MF 6455
PEL RG38120
2 3780423M2 1 Fan [A]
3 3783351M1 1 Clutch [A]
4 390796X1 4 Screw Metric [A]
M8 X 16
5 390972X1 4 Flat Washer [A]
Diameter 8-17 X 1,7 MM
6 3009286X1 4 Screw [A]
M8 X 35
7 3788052M1 1 Pulley [A]
MF 6445
3789478M3 1 Pulley [A]
MF 6455
8 3780425M3 1 Spacer [A]
9 3780604M91 1 Kit, Belt [A]
Length 1295 MM
4274692M91 1 Kit, Belt Length 1420 MM
10 3821818M91 1 Startermotor See Page - Reference Number 010-0010/1
11 391006X1 X Stud M10 X 30
3011643X1 1 Stud M10 X 25
12 339402X1 3 Nut Special M10
13 3582657M2 1 Fan
14 3783123M1 1 Clutch
15 339169X1 4 Nut M8
16 339374X1 4 Spring Washer
17 4274074M1 1 Pulley
18 3779170M1 1 Spacer Up to Serial or Engine Number
Diameter 82 X 11 MM
19 3778476M1 1 Spacer Up to Serial or Engine Number
Diameter 82 X 38 MM
20 3019069X1 4 Stud M8 X 70
21 339169X1 4 Nut [A]
M8
394367X1 4 Nut M8
22 4272155M4 1 Cowl
23 4272154M4 1 Cowl
24 3779774M2 1 Strap
25 3783713M3 1 Support
26 4272157M1 1 Strap Up to Serial or Engine Number R132068
4287378M1 1 Support [D]
From Serial or Engine Number R132069
27 339169X1 1 Nut M8
28 339123X1 7 Bolt M8 X 20
29 391039X1 6 Flat Washer
30 3581330M1 1 Gasket Up to Serial or Engine Number N104011
Length 250 MM
3778991M1 1 Gasket From Serial or Engine Number N104012
Length 285MM
31 3616268M1 1 Gasket Up to Serial or Engine Number N104011
Length 350 MM
4272087M1 1 Staple From Serial or Engine Number N104012
Length 335MM
32 3778851M1 1 Gasket Up to Serial or Engine Number N104011
Length 215 MM
3784893M1 1 Gasket From Serial or Engine Number N104012
Length 204MM
33 3782735M1 3 Gasket Length 140 MM

5. Massey Ferguson
6445 / 6455 TRACTORS - 1637454 1637454
Engine & Equipment Page010-0005
Item Part Number Qty Description Comments
34 3783129M1 1 Staple Length 25 MM
35 4276593M2 1 Spacer From Serial or Engine Number
Diameter 82 X 48 MM
36 3714512M1 1 Gasket Up to Serial or Engine Number N104011
Length 185MM
36 4272084M1 1 Staple From Serial or Engine Number N104012
Length 175MM
37 3581507M1 2 Clip Diameter 18 MM
38 4272105M3 1 Cowl
39 4276820M2 1 Cowl
40 3009291X1 2 Screw M10 X 20
41 339123X1 3 Bolt M8 X 20
42 390972X1 3 Flat Washer
43 4225432M91 1 Short Engine
44 4225075M91 1 Kit,Cyl.Block [C]
(43)
45 4225085M91 1 Kit, Crankshaft [C]
(43)
46 4 Conrod [C]
(43)
See Page - Reference Number 010-0045/17
47 4225019M91 4 Kit, Piston/Ring [C]
(43)
48 4224762M1 1 Housing [C]
(43)
49 4224860M1 10 Bolt [C]
(43)
50 3009491X1 1 Bolt M10 X 20
Up to Serial or Engine Number R132068
50 3009493X1 1 Bolt [D]
M10 X 30
From Serial or Engine Number R132069
FOOTNOTE [A] TRACTOR STEEP NOSE ONLY
FOOTNOTE [B] FOR JAPANESE MARKET ONLY
FOOTNOTE [C] NOT ILLUSTRATED
FOOTNOTE [D] EXCEPT TRACTOR R129007

6. MF 6445 / 6455 TRACTORS - 1637454
1-WH01-006-A
1 25
24
11 13 12 16
15 2
17
18 10
27
29
14
26
28
20
19
9
7
23
6 22
21
318 5
30
4
3
Ref WH011006-1 Page 010-0040

7. Massey Ferguson
6445 / 6455 TRACTORS - 1637454 1637454
Cylinder Block Page010-0040
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 731996M1 1 Plug
29 4224782M1 1 Plug
30 3638809M1 1 Screw [B,C]
MF 6455
31 4224559M1 1 Washer [B,C]
MF 6455
FOOTNOTE [A] STANDARD EXCHANGE
FOOTNOTE [B] USE WITH MOTOR PEL RG37916 - RG37826
FOOTNOTE [C] FOR JAPANESE MARKET ONLY

8. MF 6445 / 6455 TRACTORS - 1637454
1-WH02-003-A
4 5
2
9 1
10
11
67
3
8
12
19
16
17
18
13
20
14
15
Ref WH021003-1 Page 010-0045

9. Massey Ferguson
6445 / 6455 TRACTORS - 1637454 1637454
Crankshaft, Piston & Connecting Rods Page010-0045
Item Part Number Qty Description Comments
1 4225085M91 1 Kit, Crankshaft
4225085E91 1 Kit, Crankshaft [A]
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 Split Pin
8 4224833M1 1 Gear
9 4222867M1 1 Pulley,Crank
10 4222401M1 1 Block
11 748074M1 3 Screw
12 4225019M91 4 Kit, Piston/Ring
4225853M91 4 Kit, Piston Thickness (+) 0,50 MM
4225854M91 4 Kit, Piston Thickness (+) 1,00 MM
13 1 Piston (12)
Not serviced,order REF. 12
14 1 Piston Pin (12)
Not serviced,order REF. 12
15 4222135M1 2 Circlip (12)
16 4225072M91 1 Kit, Piston Ring (12)
4225858M91 1 Kit, Ring Thickness (+) 0,50MM
4225859M91 1 Kit, Ring Thickness (+) 1,00 MM
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)
FOOTNOTE [A] STANDARD EXCHANGE

10. MF 6445 / 6455 TRACTORS - 1637454
1-WH03-003-C
1
19
16
13
13
12
12
17
8
18
11
11
15 10
3
3 21
21
21
4 20
23
2
7
6
5
14
9
22
24
Ref WH031003-1 Page 010-0050

11. Massey Ferguson
6445 / 6455 TRACTORS - 1637454 1637454
Cylinder Head Page010-0050
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 4 Kit, Service (1)
4225347M1 4 Seal [B,D]
(1)
MF 6455
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 4225538M1 4 Kit, Service (1)
4225844M1 4 Seal [B,C]
(1)
MF 6455
18 4224867M1 7 Screw
19 4224868M1 3 Screw
20 4224930M1 1 Bracket
21 3637139M1 4 Screw
22 4224933M1 1 Support
23 4225137M1 1 Bracket [A]
24 4225850M1 1 Head Gasket Repairs and replaces 4225140M1
FOOTNOTE [A] TRACTOR STEEP NOSE ONLY
FOOTNOTE [B] FOR JAPANESE MARKET ONLY
FOOTNOTE [C] BROWN
FOOTNOTE [D] GREEN

12. MF 6445 / 6455 TRACTORS - 1637454
1-WH13-002-A
2
3 1
4
7
6
5
Ref WH131002-1 Page 010-0055

13. Massey Ferguson
6445 / 6455 TRACTORS - 1637454 1637454
Heater/Starter Switch Page010-0055
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

14. MF 6445 / 6455 TRACTORS - 1637454
1-WH04-002-A
1
1115
14
12
13
10
9
8
5
6
7
19
18
17
16
3
4 2
Ref WH041002-1 Page 010-0060

15. Massey Ferguson
6445 / 6455 TRACTORS - 1637454 1637454
Rocker Arm Page010-0060
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)

16. MF 6445 / 6455 TRACTORS - 1637454
1-WH10-003-A
28
27
26
10
9
12
8
7
6
5
1
4
11
30
29
2
3
31
15
14
16
13 17
23
24
22 32
19
19
21
20 18
25
Ref WH101003-1 Page 010-0065

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your reading. Please Click
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18. Massey Ferguson
6445 / 6455 TRACTORS - 1637454 1637454
Lubricating Oil Filler & Breather Page010-0065
Item Part Number Qty Description Comments
1 4225051M91 1 Cyl. Head Cover
2 1 Cyl. Head Cover (1)
Not serviced,order REF. 1
3 4224954M1 1 Gasket (1)
4 4224723M1 10 Screw (1)
Up to Serial or Engine Number 06-08-2006
10 Screw (1)
From Serial or Engine Number 07-08-2006
Not serviced,order Ref. 1
5 4224857M1 1 Spring (1)
6 4224996M1 1 Cap (1)
7 4225000M1 1 Diaphragm (1)
8 4224931M1 1 Cover (1)
9 4224721M1 4 Screw (1)
10 4224997M1 1 Cap (1)
11 4224999M1 1 Cover
12 3641649M1 3 Screw
13 4225043M1 1 Breather Pipe
14 1 Breather Pipe (13)
Not serviced,order REF. 13
15 4224748M1 1 O Ring (13)
16 4226214M1 2 Screw (13)
Replace and repair. Old not interchangeable with new 4224723M1
17 4224972M1 1 Gasket (13)
18 3637095M1 1 Screw
19 4223779M91 1 Lub.Oil Filler
20 1 Body (19)
Not serviced,order REF. 19
21 3637013M1 1 O Ring (19)
22 3641889M1 1 Cap (19)
23 1 Cap (22)
Not serviced,order REF. 22
24 3641231M1 1 O Ring (22)
25 3637048M1 1 Screw
26 3641012M1 1 Screw
27 4225002M1 1 Heatshield
28 3641648M1 2 Screw
29 3641405M1 1 Hose Clip
30 4224373M1 1 Hose
31 4223485M1 1 Spring
32 745489M1 1 Bracket

19. MF 6445 / 6455 TRACTORS - 1637454
1-WH08-004-A
7
6
1 3
12
2
9
108
11
13
17 14
4
35
5 33
32
31
30 15
29
28
27
34
16
26
19
20
22 18
24 23
25 21
Ref WH081004-1 Page 010-0070

20. Massey Ferguson
6445 / 6455 TRACTORS - 1637454 1637454
Timing Gear & Camshaft Page010-0070
Item Part Number Qty Description Comments
1 4225403M91 1 Timinggear
Cover
2 1 Timinggear
Cover
(1)
Not serviced,order REF. 1
3 4224958M1 1 Cover Gasket (1)
4 3637044M1 10 Screw
5 4222836M1 5 Screw
6 376606X1 1 Plug
7 376606X1 1 Plug
8 4225036M1 1 Connection
9 4224760M1 1 O Ring (8)
10 1 Connection (8)
Not serviced,order REF. 8
11 4224759M1 1 O Ring (8)
12 3637008M1 2 Screw
13 4224934M1 1 Gasket
14 4224935M1 1 Gasket
15 376606X1 1 Plug
16 1 Not Used
17 4224976M1 1 Timing Gear
Case
18 3637092M1 4 Screw
19 1447690M1 1 Seal MF 6445
Replace and repair. Old not interchangeable with new 4224761M1
1447690M1 1 Seal MF 6455
Up to Serial or Engine Number 29-NOV-2003
Replace and repair. Old not interchangeable with new 4224761M1
1447690M1 1 Seal MF 6455
From Serial or Engine Number 30-NOV-2003
Diameter 58,5X79,6X11,2
Replace and repair. Old not interchangeable with new 4224761M1
20 735852M1 1 Hub
4225881M1 1 Hub [A,B]
MF 6455
21 4225413M1 1 Distributor Gear
22 1 Distributor Gear (21)
Not serviced,order REF. 21
23 731033M1 2 Bush (21)
24 3641760M1 1 Plate
4225415M1 1 Plate [A,B]
MF 6455
25 3637076M1 3 Screw
3637096M1 3 Screw [A,B]
MF 6455
26 1476280X1 1 Screw
27 4224830M1 1 Thrust Washer
28 4224838M1 1 Gear,Crankshaft
29 70905845 1 Split Pin
30 747557M1 1 Washer
31 1476145X1 1 Dowel
32 4224844M1 1 Camshaft
33 4222069M1 8 Tappet
34 3637008M1 8 Screw
35 733817M1 8 Rod
FOOTNOTE [A] USE WITH MOTOR PEL RG37916 - RG37826
FOOTNOTE [B] FOR JAPANESE MARKET ONLY

21. MF 6445 / 6455 TRACTORS - 1637454
1-WH06-001-B
1
21
20
8
10
9
24
5
3
17
12 18 16
7 19
15
14
13
22
6 11
Ref WH061001-1 Page 010-0075