This document provides detailed parts listings and technical specifications for components of a Massey Ferguson MF 251 tractor. It includes over 30 pages detailing individual parts for the engine, cylinders, crankshaft, pistons, cylinder head, rocker shaft, timing gears, camshaft and other systems. The document contains part numbers, quantities, descriptions and comments for hundreds of individual tractor parts.

1. Massey Ferguson
MF 251 TRACTOR 2WD (BR FOR AUSTRALIA) C025102
TABLE OF CONTENT Page00-TOC
Page Number Page Title Page Reference
01-000-TOC ENGINE, FUEL AND EXHAUST SYSTEM 01-000-TOC
02-000-TOC AXLES 02-000-TOC
03-000-TOC DRIVE TRAIN SYSTEM 03-000-TOC
04-000-TOC HYDRAULIC SYSTEM 04-000-TOC
05-000-TOC ELECTRICAL SYSTEM 05-000-TOC
06-000-TOC PLATFORM 06-000-TOC
07-000-TOC CHASSIS 07-000-TOC
08-000-TOC WHEELS 08-000-TOC
09-000-TOC IMPLEMENT DRIVE SYSTEM 09-000-TOC
10-000-TOC LINKAGE 10-000-TOC
11-000-TOC ACCESSORIES 11-000-TOC

2. MF 251 TRACTOR 2WD (BR FOR AUSTRALIA)
MO001183
1
Ref EO90Z001-1 Page 01-0003

3. Massey Ferguson
MF 251 TRACTOR 2WD (BR FOR AUSTRALIA) C025102
ENGINE D3.152 UK Page01-0003
Item Part Number Qty Description
Comments
Technical Specification
1 048643T1 1 KIT, MOTOR LP46914 250X - KD1351 - 415

4. MF 251 TRACTOR 2WD (BR FOR AUSTRALIA)
3408364
12
Ref EH89Z008-1 Page 01-0013

5. Massey Ferguson
MF 251 TRACTOR 2WD (BR FOR AUSTRALIA) C025102
FLYWHEEL Page01-0013
Item Part Number Qty Description
Comments
1 3408365M1 1 FLYWHEEL
2 3408357M1 1 STARTER RING

6. MF 251 TRACTOR 2WD (BR FOR AUSTRALIA)
3589435M94P
6
6
13
5
4
4
4
4
2
1
10
11
12
3
14
9
8
7
Ref 0160Z012-1 Page 01-0032

7. Massey Ferguson
MF 251 TRACTOR 2WD (BR FOR AUSTRALIA) C025102
ALTERNATOR Page01-0032
PRESTOLITE
Item Part Number Qty Description
Comments
1 071205R1 1 PULLEY,ALTERNATR
053711P1 1 PULLEY
[A]
2 071200R1 1 FAN
3 071199R1 1 FASTENER
4 071191R1 1 KIT, REPAIR
5 071196R1 1 COVER
6 071190R1 1 KIT, ROTOR
7 071198R1 1 STATOR
8 071201R1 1 RECTIFIER
9 071195R1 1 COVER
10 071193R1 1 REGULATOR
11 071197R1 1 KIT, BRUSH
12 071189R1 1 DIODE
13 071194R1 1 BEARING
14 071206R1 1 CAPACITOR
[A] DOUBLE

8. MF 251 TRACTOR 2WD (BR FOR AUSTRALIA)
MO001183
1
Ref EO90Z001-1 Page 01-0003

9. Massey Ferguson
MF 251 TRACTOR 2WD (BR FOR AUSTRALIA) C025102
ENGINE D3.152 UK Page01-0003
Item Part Number Qty Description
Comments
Technical Specification
1 048643T1 1 KIT, MOTOR LP46914 250X - KD1351 - 415

10. MF 251 TRACTOR 2WD (BR FOR AUSTRALIA)
MO001355
1
Ref EG54Z019-1 Page 01-0004

11. Massey Ferguson
MF 251 TRACTOR 2WD (BR FOR AUSTRALIA) C025102
ENGINE Page01-0004
Item Part Number Qty Description
Comments
1 3477152M91 1 SHORT ENGINE

12. MF 251 TRACTOR 2WD (BR FOR AUSTRALIA)
MO110
1
2
3
4
5
6
25
24
23
22
21
20
19
18
17
16
15141312111098
28 27 26
7
Ref EJ93Z014-1 Page 01-0005

13. Massey Ferguson
MF 251 TRACTOR 2WD (BR FOR AUSTRALIA) C025102
CYLINDER BLOCK Page01-0005
Item Part Number Qty Description
Comments
Technical Specification
1 3637494M1 3 LINER FLANGE OS 0,030" / 0,762MM
THICKNESS
(+)0.76MM
734179M1 3 LINER STD UNFINISHED
(8)
[A]
739043M1 3 LINER STD SLIP FIT
[B]
745243M1 3 LINER FLANGE OS 0,010 / 0,254MM
THICKNESS
(+)0.25MM
2 748040M1 1 PLUG
(8)
3 740458M1 1 BUSH
(8)
4 731354M1 1 PLUG
(8)
5 731356M1 1 PLUG ?17,6 MM
(8)
6 745241M1 6 THIMBLE
(8)
7 1476051X1 6 BOLT
(8)
8 3640395M91 1 CYLINDER-BLOCK
9 3638111M1 2 PLUG
(8)
10 1447053M1 2 O RING
(8)
11 745241M1 2 THIMBLE
(8)
12 1476049X1 2 BOLT
(8)
13 731997M1 1 PLUG
(8)
14 365332X1 1 PLUG 1/8-27 PTF-STEEL-PL
(8)
15 3638114M1 2 PLUG
(8)
16 376670X1 1 PLUG
(8)
17 741378M1 1 JOINT
18 731312M1 2 DOWEL
19 375703X1 9 FLAT WASHER 5/16"
20 353518X1 9 HEX CAP SCREW 5/16-24 X 0.88-SAE 5-ZN
21 1447691M1 1 OIL SEAL
(22)
22 747383M91 1 KIT, HOUSING
23 731354M1 5 PLUG
(8)
24 1476282X1 1 PLUG
(8)
25 731356M1 1 PLUG ?17,6 MM
(8)
26 738821M1 2 PLUG
(8)
27 738820M1 2 PLUG
(8)
28 738808M1 1 PLUG
(8)
[A] FINISH LINER
[B] PARTLY FINISH LINER

14. MF 251 TRACTOR 2WD (BR FOR AUSTRALIA)
MO111
1
7
6
5
4
3
2
15 1516
17
18
19
20
98
23 24
21 22
10
11
12
13
14
Ref EJ84Z001-1 Page 01-0006

15. Massey Ferguson
MF 251 TRACTOR 2WD (BR FOR AUSTRALIA) C025102
CRANKSHAFT, PISTONS AND CONNECTING RODS Page01-0006
Item Part Number Qty Description
Comments
1 3637392M91 3 KIT, CONROD
2 740407M1 1 BUSH
(1)
3 1
CONROD
NOT SERVICED,ORDER
REF.1
4 375756X1 2 HEX CAP SCREW
(1)
5 1
BOOT
NOT SERVICED,ORDER
REF.1
6 1476245X1 2 NUT
(1)
7 731076M1 1 WOODRUFF KEY
8 3641826M1 1 GEAR,CRANKSHAFT
9 3638657M1 1 SPACER
10 3641858M91 1 KIT, CRANKSHAFT
11 3638565M1 2 WEIGHT
12 376546X1 4 HEX CAP SCREW
13 3640714M91 3 KIT, PISTON
14 745826M91 3 KIT, PISTON RING
15 375709X1 2 CIRCLIP
(13)
16 1
PIN
NOT SERVICED,ORDER
REF.13
17 1
(13)
PISTON
18 1
CRANK SHAFT
NOT SERVICED,ORDER
REF.10
19 737070M91 1 KIT, BEARING
(10)
737071M91 X KIT, BEARING
THICKNESS
(-)0.010"
737072M91 X KIT, BEARING
THICKNESS
(-)0.020"
737073M91 X KIT, BEARING
THICKNESS
(-)0.030"
20 4222571M91 1 KIT, BEARING
(10)
4222572M91 X KIT, BEARING
THICKNESS
(-)0.010"
4222573M91 X KIT, BEARING
THICKNESS
(-)0.020"
4222574M91 X KIT, BEARING
THICKNESS
(-)0.030"
21 735112M1 2 THRUST WASHER
(10)
735800M1 X THRUST WASHER
THICKNESS
(+)0.007"
22 747323M1 1 THRUST WASHER
(10)
747324M1 X THRUST WASHER
THICKNESS
(+)0.007"
23 735113M1 2 THRUST WASHER
(10)

16. Massey Ferguson
MF 251 TRACTOR 2WD (BR FOR AUSTRALIA) C025102
CRANKSHAFT, PISTONS AND CONNECTING RODS Page01-0006
Item Part Number Qty Description
Comments
23 735801M1 X THRUST WASHER
THICKNESS
(+)0.007"
24 747325M1 1 THRUST WASHER
(10)
24 747326M1 X THRUST WASHER
THICKNESS
(+)0.007"

17. MF 251 TRACTOR 2WD (BR FOR AUSTRALIA)
MO112
21 20 19
121314151617
18
1
2
3
4
5
6
7
22
8
9
10
11
Ref EJ80Z008-1 Page 01-0007

18. Massey Ferguson
MF 251 TRACTOR 2WD (BR FOR AUSTRALIA) C025102
CYLINDER HEAD Page01-0007
Item Part Number Qty Description
Comments
Technical Specification
1 731155M1 6 COTTER
(4)
2 747697M1 6 CAP
(4)
3 1476265X1 9 HEX CAP SCREW M10 X 100
4 3637389M91 1 KIT, CYL. HEAD
[A]
5 3681E024 1 CYLINDER HEAD GASKET
6 739060M1 3 INLET VALVE
(4)
7 3637525M91 1 CYLINDER HEAD
[B]
8 3637529M1 3 EXHAUST VALVE
(4)
9 735831M1 3 SOCKET
10 734308M1 1 STUD BOLT
11 1476263X1 1 NUT
12 742271M1 3 STUD BOLT 7/16"-20 X 4-1/8
13 1476263X1 3 NUT
14 1476264X1 5 HEX CAP SCREW M10 X 85
15 376606X1 2 PLUG
(4)
16 736185M1 6 WASHER
(4)
17 3637678M1 6 SPRING
(4)
18 732445M1 6 GUIDE
(4)
19 376606X1 2 PLUG
(7)
20 732445M1 3 GUIDE
(7)
21 732445M1 3 GUIDE
(7)
22 1
HEAD
NOT SERVICED,ORDER
REF.7
[A] CYLINDER HEAD ASSEMBLY WITH VALVE
[B] CYLINDER HEAD WITH GUIDE AND PLUG ONLY

19. MF 251 TRACTOR 2WD (BR FOR AUSTRALIA)
MO113
20
20
20
15
15
15
19
19
16
16
16
16
18
18
18
21
22
3
2
1
13 12
17
14
11
10
9
6 7 8
5
4
Ref EJ96Z006-1 Page 01-0008

20. Massey Ferguson
MF 251 TRACTOR 2WD (BR FOR AUSTRALIA) C025102
ROCKER SHAFT Page01-0008
Item Part Number Qty Description
Comments
Technical Specification
1 4222210M91 1 ROCKER SHAFT ASM
2 376536X1 2 NUT
3 375706X1 2 FLAT WASHER 3/8"
4 731514M1 1 UNION
5 1476274X1 2 STUD BOLT
6 3638112M1 6 SCREW
7 376123X1 6 LOCKNUT
8 731150M1 6 TAPPET
9 746622M1 2 STUD BOLT
10 375706X1 2 FLAT WASHER 3/8"
11 376536X1 2 NUT
12 3637532M91 1 ROCKER SHAFT
(1)
13 731330M1 2 PLUG
(12)
14 731263M1 1 SPRING
(1)
15 3638185M1 3 ROCKER ARM
(1)
LEFT HAND
16 731261M1 5 SPACER
(1)
17 1447719M1 1 PIN
(1)
18 3638184M1 3 ROCKER ARM
(1)
RIGHT HAND
19 731262M1 2 SPRING
(1)
20 3818X121 4 BRACKET
(1)
21 375717X1 2 CIRCLIP
(1)
22 742191M91 1 OIL PIPE
(1)

21. MF 251 TRACTOR 2WD (BR FOR AUSTRALIA)
MO114
28
32 31
29
30
14 15
33
21222324252627
1
2
3
4
5
6
7
8
9
10
11
12
16
17
18
19
20
13
Ref EJ97Z005-1 Page 01-0009

22. Massey Ferguson
MF 251 TRACTOR 2WD (BR FOR AUSTRALIA) C025102
TIMING GEAR AND CAMSHAFT Page01-0009
Item Part Number Qty Description
Comments
Technical Specification
1 3638219M91 1 GEAR,IDLER Z = 90
2 3637942M1 1 BUSH
(1)
3 3241H013 1 PLATE
4 731207M1 1 TAB WASHER
5 375764X1 1 BOLT
6 734661M1 1 JOINT
7 3637397M91 1 COVER
8 353535X1 1 BOLT UNF 5/16-24X3.00-SAE 5-ZN
375700X1 1 BOLT
9 1650484M1 1 LOCK WASHER 5/16"
10 376694X1 1 SCREW
11 1447689M1 1 SEAL
(7)
12 1650484M1 3 LOCK WASHER 5/16"
13 3637721M1 3 SCREW
14 353668X1 8 HEXAGONAL HEAD BOLT 1/4"-20 X 0.88 -SAE 5-ZN
15 353441X1 8 LOCK WASHER 1/4" ZN
16 353525X1 2 HEX CAP SCREW 5/16-24 X 1.75-SAE 5-ZN
17 3639209M1 2 HEX CAP SCREW 5/16"-24 X 1-3/8
18 1650484M1 2 LOCK WASHER 5/16"
19 731214M1 1 TIMINGGEAR COVER
20 731204M1 1 HUB
21 739477M1 1 TIMING GEAR CASE
22 1650484M1 12 LOCK WASHER 5/16"
23 375732X1 12 BOLT
24 733507M1 1 CAMSHAFT
25 3637541M1 1 GEAR,CAMSHAFT
731203M1 1 GEAR,CAMSHAFT
26 1650484M1 3 LOCK WASHER 5/16"
27 375804X1 3 BOLT
28 731368M1 1 DOWEL
29 1476244X1 1 RIVET
(7)
30 746380M1 1 SPRING
(7)
31 353916X1 1 NUT 5/16"-24 SAE 5 ZN
32 1650484M1 1 LOCK WASHER 5/16"
33 734238M1 1 GASKET

23. MF 251 TRACTOR 2WD (BR FOR AUSTRALIA)
MO115
14
16 15
13 12
4
5
1011
3
2
1
9 8 66 77
Ref EJ98Z002-1 Page 01-0010

24. Massey Ferguson
MF 251 TRACTOR 2WD (BR FOR AUSTRALIA) C025102
LUBRIFICATING OIL PUMP Page01-0010
Item Part Number Qty Description
Comments
Technical Specification
1 731236M1 1 BUSH
(2)
2 3637351M91 1 GEAR,IDLER
3 731103M1 1 CIRCLIP
4 3637359M91 1 OIL PUMP
5 731239M1 1 PIPE,WATER
6 375759X1 2 OLIVE 5/8"
7 375831X1 2 UNION
8 1650484M1 3 LOCK WASHER 5/16"
9 375732X1 3 BOLT
10 354061X1 1 SPLIT PIN 1/8" X 1.25-STD-ZN
(4)
11 376946X1 1 O RING
(4)
12 735199M1 1 CAP
(4)
13 736511M1 1 SPRING
(4)
14 736510M1 1 PLUNGER
(4)
15 1
GEAR
NOT SERVICED,ORDER
REF.4
16 1
BODY
NOT SERVICED,ORDER
REF.4

25. MF 251 TRACTOR 2WD (BR FOR AUSTRALIA)
MO116
27 26
28
29
30
32
3133
1413
15
16
17
18
19
20
21
25
24
23
22
1
2
3
4
5
6
7
8
9
10
12
11
Ref EJ99Z008-1 Page 01-0011

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27. Massey Ferguson
MF 251 TRACTOR 2WD (BR FOR AUSTRALIA) C025102
FUEL INJECTION EQUIPMENT Page01-0011
Item Part Number Qty Description
Comments
Technical Specification
1 746966M91 1 PIPE
2 1447765M1 3 STUD BOLT
3 766843M1 3 SPACER
4 746844M1 3 SEAL
5 376091X1 3 WASHER
6 1447765M1 3 STUD BOLT
7 3637312M91 1 INJECTION PUMP
8 737725M1 1 DOWEL
9 3638525M1 1 GASKET
10 3639857M1 1 GEAR
11 1650484M1 3 LOCK WASHER 5/16"
12 375804X1 3 BOLT
13 3637715M1 3 STUD BOLT
14 376578X1 2 NUT
15 738415M91 1 PLATE
16 738467M1 1 CLIP
17 738467M1 1 CLIP
18 738466M1 1 PLATE
19 375703X1 3 FLAT WASHER 5/16"
20 1650484M1 3 LOCK WASHER 5/16"
21 353916X1 3 NUT 5/16"-24 SAE 5 ZN
22 3638622M91 1 INJECTION PIPE
[C]
23 376521X1 1 UNION NUT
24 376524X1 1 OLIVE
25 746707M1 1 UNION
26 376518X1 6 SEALING WASHER
27 731567M1 3 BANJO BOLT
28 3638621M91 1 INJECTION PIPE
[B]
29 3638784M91 1 INJECTION PIPE
[A]
30 353916X1 6 NUT 5/16"-24 SAE 5 ZN
31 3639731M1 3 INJECTOR
32 1446102M1 1 HOLDER
(31)
33 3639738M1 3 NOZZLE
(31)
[A] CYLINDER N?1
[B] CYLINDER N?2
[C] CYLINDER N?3

28. MF 251 TRACTOR 2WD (BR FOR AUSTRALIA)
MO117
3
2
1
6
5
4
7
Ref EO83Z001-1 Page 01-0012