This document provides a list of parts and components for repairing and replacing items related to the cylinder block, crankshaft, pistons, connecting rods, cylinder head, rocker shaft, and other parts of an MF 1004 T tractor engine. It includes part numbers, quantities, descriptions, and notes about which parts certain other parts repair or replace.

1. MF 1004 T TRACTOR - 1637144
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2. MASSEY FERGUSON
MF 1004 T TRACTOR - 1637144 1637144
CYLINDER BLOCK - AT4.236 ENGINE 4
Item Part Number Qty Description Comments
AT4.236 ENGINE
1 ZZ 50082 1 Kit,Cyl.Block (D,G)
Repairs and replaces ZZ50028
Repairs and replaces U5BA0033
Repairs and replaces U5BA0029
2 31358393 4 Liner (1)
(A,H)
2 31358394 X Liner (B,H)
31358398 X Liner (H)
Repairs and replaces 31358403
0.010" 0.25MM
O/S
2 3135X031 4 Liner (1)
(A,J)
2 3135X032 X Liner (B,J)
3 0650710 5 Plug (1)
Repairs and replaces 0650563
4 32418117 4 Plug (1)
Repairs and replaces 0650618
5 33142111 10 Thimble (1)
6 32166329 10 Bolt (1)
7 31134164 1 Bush (1)
Repairs and replaces 31134163
Repairs and replaces 31134132
8 0650710 2 Plug (1)
Repairs and replaces 0650563
9 32416105 1 Plug
10 0650577 4 Plug
11 32417134 1 Plug
12 36812349 1 Head
Gasket
(E)
3681E016 1 Head
Gasket
(F)
Repairs and replaces 3681E014
Repairs and replaces 3681E012
13 4142V064 1 Housing Repairs and replaces 4142V061
Repairs and replaces 4142V031
14 2418F475 1 Seal (13)
15 36817157 1 Joint
16 0746211 10 Bolt
17 0920003 10 Washer
18 0350009 2 Dowel
19 2172530 2 Capscrew
20 33112111 2 Washer
21 0650582 1 Plug
22 0920130 1 Washer
23 2485A204 1 Plug
24 0650588 2 Plug
25 2431131 1 Plug (C)
26 32161114 2 Plug Repairs and replaces 32161357
Repairs and replaces 32161114
(A)
PRESS FIT
(B)
SLIP FIT
(C)
FITTED UP TO ENGINE NUMBER U918157K
(D)
WAS U5BA0033USE ZZ50028/32166337(2)/32166338(12)/3
2166339(8)/3681E012/U5LU0020(4)/41158145(4).
(E)
UP TO ENGINE NO U027773M. SEE ALSO SERVICE BULLETI N NO.21
(F)
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3. MASSEY FERGUSON
MF 1004 T TRACTOR - 1637144 1637144
CYLINDER BLOCK - AT4.236 ENGINE 4
Item Part Number Qty Description Comments
FROM ENGINE NO U027774M. SEE ALSO SERVICE BULLETIN NO.21
(G)
WAS ZZ50028 USE ZZ50082 WITH 33153157/2116053/2184 634(3)
(H)
USED ONLY WITH ZZ50028/U5BA0033/U5BA0029
(J)
USED ONLY WITH ZZ50082
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4. MF 1004 T TRACTOR - 1637144
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5. MASSEY FERGUSON
MF 1004 T TRACTOR - 1637144 1637144
FLYWHEEL AND STARTER RING - AT4.236 ENGINE 5
Item Part Number Qty Description Comments
AT4.236 ENGINE
1 4111D043 1 Flywheel
2 1 Flywheel (1)
Not serviced, order REF.1
3 0410236 1 Starter Ring (1)
Number of teeth/spines 115
4 2182122 6 Setscrew
5 33117127 6 Washer Repairs and replaces 33117121
6 0650588 1 Plug
7 32452113 1 Pointer
8 0826481 3 Stud
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6. MF 1004 T TRACTOR - 1637144
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7. MASSEY FERGUSON
MF 1004 T TRACTOR - 1637144 1637144
CRANKSHAFT, PISTONS AND CONNECTING RODS - AT4.236 ENGINE 6
Item Part Number Qty Description Comments
AT4.236 ENGINE
1 ZZ 90082 1 Kit, Crankshaft Repairs and replaces ZZ90079
Repairs and replaces U5BG0022
Repairs and replaces U5BG0009
2 1 Crankshaft (1)
Not serviced, order REF.1
3 81558 1 Kit, Bearing (1)
(A)
3 81558A X Kit, Bearing (A)
Thickness (-)0.25MM
Thickness (-)0.010"
3 81558B X Kit, Bearing (A)
Thickness (-)0.50MM
Thickness (-)0.020"
3 81558C X Kit, Bearing (A)
Thickness (-)0.75MM
Thickness (-)0.030"
4 85042 1 Kit, Bearing (1)
(A)
Repairs and replaces U5ME0002
4 85042A X Kit, Bearing (A)
Thickness (-)0.25MM
Thickness (-)0.010"
Repairs and replaces U5ME0002A
4 85042B X Kit, Bearing (A)
Thickness (-)0.50MM
Thickness (-)0.020"
Repairs and replaces U5ME0002B
4 85042C X Kit, Bearing (A)
Thickness (-)0.75MM
Thickness (-)0.030"
Repairs and replaces U5ME0002C
5 31137551 2 Thrust Washer (1)
Repairs and replaces 31137311
5 31137312 X Thrust Washer Thickness (+)0.19MM
Thickness (+)0.0075"
6 31137561 2 Thrust Washer (1)
Repairs and replaces 31137321
6 31137322 X Thrust Washer Thickness (+)0.19MM
Thickness (+)0.0075"
7 ZZ 90013 4 Kit, Conrod Repairs and replaces M7BJ0053
8 1 Rod (7)
Not serviced, order REF.7
9 1 Cap (7)
Not serviced, order REF.7
10 31134131 1 Bush (7)
11 32762144 2 Bolt (7)
12 33221328 2 Nut (7)
13 U5LU0004 4 Kit, Piston (B,D)
U5LU0020 4 Kit, Piston (B,E)
U5LP0006 X Kit, Piston (C,D)
U5LP0022 X Kit, Piston (C,E)
14 1 Piston (13)
Not serviced, order REF.13
15 1 Pin (13)
Not serviced, order REF.13
16 2721A029 2 Circlip (13)
17 41158005 4 Kit, Piston Ring (D)
41158145 4 Kit, Piston Ring (E)
18 31171681 1 Gear,Crankshaft 28T
19 0500012 1 Woodruff Key
20 33125416 1 Washer
(A)
PRE-FINISHED
(B)
UNTOPPED
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8. MASSEY FERGUSON
MF 1004 T TRACTOR - 1637144 1637144
CRANKSHAFT, PISTONS AND CONNECTING RODS - AT4.236 ENGINE 6
Item Part Number Qty Description Comments
(C)
PRE-TOPPED
(D)
UP TO ENGINE NO U027773M. SEE ALSO SERVICE BULLETI N NO.21
(E)
FROM ENGINE NO U027774M. SEE ALSO SERVICE BULLETIN NO.21
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9. MF 1004 T TRACTOR - 1637144
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11. MASSEY FERGUSON
MF 1004 T TRACTOR - 1637144 1637144
CYLINDER HEAD - AT4.236 ENGINE 7
Item Part Number Qty Description Comments
AT4.236 ENGINE
1 ZZ 80077 1 Kit, Cyl.
Head
Repairs and replaces ZZ80056
2 1 Head (1)
Not serviced, order REF.1
T.B.A.
3 1 Head (1)
Not serviced, order REF.1
4 3343F002 4 Guide (1)
5 3343J002 4 Guide (1)
6 0650203 1 Plug
7 2411157 1 Washer
8 0650710 1 Plug (1)
Repairs and replaces 0650563
9 3623K007 1 Plate (1)
Repairs and replaces 37553142
10 3685R004 1 Joint (1)
11 0746254 4 Setscrew (1)
12 0920053 4 Washer (1)
13 0746452 2 Setscrew (1)
14 0920054 2 Washer (1)
15 3142A052 4 Valve
Exhaust
(1)
Repairs and replaces 31431851
15 3142A053 X Valve
Exhaust
(F)
Thickness (+)0.08MM
Thickness (+)0.003"
15 3142A054 X Valve
Exhaust
(F)
Thickness (+)0.38MM
Thickness (+)0.015"
15 3142A055 X Valve
Exhaust
(F)
Thickness (+)0.75MM
Thickness (+)0.030"
16 33415118 4 Washer
17 31745121 4 Spring (1)
Repairs and replaces 3174P404
18 2415B201 4 O Ring (1)
19 33817117 4 Seal (1)
20 33423147 8 Cap (1)
21 33173108 8 Cotter (1)
(A)
22 3142H002 4 Valve Inlet (1)
3142H003 X Valve Inlet (F)
Thickness (+)0.08MM
Thickness (+)0.003"
22 3142H004 X Valve Inlet (F)
Thickness (+)0.38MM
Thickness (+)0.015"
22 3142H005 X Valve Inlet (F)
Thickness (+)0.75MM
Thickness (+)0.030"
23 33123117 8 Washer (1)
(B)
23 33415118 8 Washer (1)
(C)
24 31745121 4 Spring (1)
Repairs and replaces 3174P404
25 33817117 4 Seal (1)
(A)
26 33423147 4 Cap (1)
27 33173108 8 Cotter (1)
(A)
28 33152153 4 Insert (1)
29 32166219 8 Bolt (D)
32166339 8 Screw (E)
30 32166221 12 Bolt (D)
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12. MASSEY FERGUSON
MF 1004 T TRACTOR - 1637144 1637144
CYLINDER HEAD - AT4.236 ENGINE 7
Item Part Number Qty Description Comments
30 32166338 12 Bolt (E)
31 32166222 2 Screw (D)
31 32166337 2 Screw (E)
(A)
SERVICED IN PAIRS
(B)
USED ONLY WITH U5BD0026 (CYLINDER HEAD)
(C)
USED ONLY WITH ZZ 80056 (CYLINDER HEAD)
(D)
UP TO ENGINE NO U027773M. SEE ALSO SERVICE BULLETI N NO.21
(E)
FROM ENGINE NO U027774M. SEE ALSO SERVICE BULLETIN NO.21
(F)
OVERSIZE VALVES CAN ONLY BE USED WITH CYLINDER HEA DS WHEN VALVE
GUIDES ARE NOT FITTED.
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13. MF 1004 T TRACTOR - 1637144
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14. MASSEY FERGUSON
MF 1004 T TRACTOR - 1637144 1637144
ROCKER SHAFT - AT4.236 ENGINE 8
Item Part Number Qty Description Comments
AT4.236 ENGINE
1 ZZ 90007 1 Rocker Shaft Ass Repairs and replaces 88677
2 ZZ 90032 1 Rocker Shaft (1)
Repairs and replaces 83449
3 0650507 2 Plug (2)
4 3818X901 4 Bracket (1)
Repairs and replaces 37521334
5 41151482 4 Rockerarm (1)
Right Hand
Repairs and replaces 41151468
Repairs and replaces 41151421
6 2511425 1 Bush (5)
7 41151481 4 Rockerarm (1)
Left Hand
Repairs and replaces 41151419
8 2511425 1 Bush (7)
9 31744123 2 Spring (1)
10 31743108 2 Spring (1)
11 3775E011 1 Connection (1)
Repairs and replaces 35511111
12 0726504 1 Setscrew (1)
(A)
12 2231236 1 Setscrew (1)
(B)
13 0170151 2 Circlip (1)
14 33117434 2 Washer (1)
Repairs and replaces 33117415
15 8 Stud (1)
(C)
16 8 Nut (1)
(C)
17 0826628 4 Stud
18 0576054 4 Nut Repairs and replaces 2211284
19 0920006 4 Washer
20 31434163 8 Tappet
21 31434307 8 Pushrod
22 33811113 1 Olive
23 33117426 2 Shim (1)
24 0096634 4 Screw
(A)
USE ONLY WITH CONNECTION 35511111
(B)
USE ONLY WITH CONNECTION 3775E011
(C)
WAS 0826628/0576054 USE 0096634
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15. MF 1004 T TRACTOR - 1637144
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