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CRAFTSMAN
4-CYCLE
ENGINE
MODEL NUMBER 143.993500
KEY
PART
NO,
NO.
DESCRIPTION
1
37280
2
2_._7
6
3,3._'_4
7
36557
12
36775
12A
36558
12B
36694
14
_'8277
15
30589
16
34839A
17
31335
18
651018
19
36281
20
32600
30
36793
40
35544A
35545A
35546
41
35541
35542
35543
42
35547A
35548A
35549
43
20381
45
36777
46
3261OA
48
27241
50
37032
52
29914
69
35261
70
32612C
72
36083
75
27897
80
30574A
81
30590A
82
-30591
83
30588A
86
650488
89
611004
90
611112
92
650815
93
650816
100
34443B
101
610118
103
651007
110
37047
119
37028
120
36825
125
36779
KEY
NO.
PART
NO.
Cylinder
126
36781
(Incl. 2,20 & 150)
Dowel Pin
130
6021A
Breather Element
135
35395
Breather Assay.
(Ind. 6 & 12A)
150
31672
Breather Tube
151
31673
Breather Cover & Tube
151A
40017
(Ind. 12B)
169
36783
Breather Tube Elbow
172
36784
Washer
174
30200
Governor Rod (Ind. 14)
178
29752
Governor Lever
Governor Lever Clamp
182
6201
Screw, Torx T-15,
184
26756
8-32 x 19/64"
Extension Spdng
185
36785
Oil Seal
186
32653
Crankshaft
189
650839
Piston, Pin & Ring Set
191
36559A
(Std.)
Piston, Pin & Ring Set
195
610973
(.010" OS)
207
34336
Piston, Pin & Ring Set
216
33086
(.020" OS)
223
650451
Piston & Pin Ass'y. (Std.)
224
36786
(Incl. 43)
238
650832
Piston & Pin Assay.
239
34338
(.010" OS) (Ind.43)
241
35797
Piston & Pin Ass'y. (.020"
245
35066
OS) (Incl. 43)
250
35065
Ring Set (Std.)
260
36834
Ring Set (.010" OS)
261
30200
Ring Set (.020 OS)
262
650831
Piston Pin Retaining
275
36790
Ring
277
650988
Connecting Rod Ass'y.
285
35000A
(Ind. 46)
287
650926
ConneCtingRod Bolt
290
34357
Valve Lifter
292
26460
Camshaft (NCR)
300
35586
Oil Pump Ass'y.
301
36246
• Mounting Flange Gasket
311
27625
Mounting Flange (Incl.
313
34080
72 thin 83)
37OA 36261
Oil Drain Plug
370(3
37199
Oil Seal
370K
36695
Govemor Shaft
380
640173
Washer
390
590737
Governor Gear Ass'y.
400
37029A
(Incl. 81)
Governor Spool
416
36085
Screw, 1/4-20 x 1-1/4"
Flywheel Key
417
650821
Flywheel
Bollavtile Washer
900
Flywheel Nut
Solid State Ignition
Spark Plug Cover
900
Screw, Torx T-15,
10-24 x 15/16"
Ground Wire
° Cylinder Head Gasket
Cylinder Head
Exhaust Valve (Std.)
(ind. 151)
DESCRIPTION
Intake Valve (Std.)
(Ind. 151)
Screw, 5/16-18 x 1-1/2=
Resistor Spark
Plug(RJ19LM)
Valve Spring
Valve Spring Cap
Intake Valve Seal
• Valve Cover Gasket
Valve Cover
Screw, 10-24 x 9/16"
Nut & Lock Washer,
1/4-28
Screw, 1/4-28x 7/8"
• Carburetor To Intake
Pipe Gasket
Intake Pipe
Governor Link
Screw, 1/4-20x 3/8"
S.E. Brake Bracket
(Inc1.195)
Terminal
Thmttie Link
R.P.M. Adjusting Lever
Screw, 1/4-20 x 1"
° Intake Pipe Gasket
Screw, 10-32 x 49/64"
* Air Cleaner Gasket
Air Cleaner Collar
Air Cleaner Filter
Air Cleaner Cover
Blower Housing
Screw, 10.24 x 9/16"
Screw, 114-20x 1/2"
Muffler
Screw, 1/4-20x 2-5/16"
Starter Cup
Screw, 8-32 x21/64"
Fuel Line
Fuel Una Clamp
Fuel Tank (Incl.292&301
Fuel Cap
Oil Fill Plug
Spacer
LubricationDecal
Primer Decal
Starter Decal
Carburetor (Ind.184)
Rewind Starter
Gasket Set
(Incl. Items Marked *)
Spark Arrestor Kit (Incl.
417)(Optional)
Screw, 10-32 x 1/2"
(Optional)
Replacement Engine
750830, order from
71-999
Replacement S/B
750829, order from
71-999
RPM High 2900 to 3200
NOTE: This engine could have been builtwith 590694
starter
33
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