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CRAFTSMAN
4-CYCLE
ENGINE
MODEL NUMBER
143.994508
KEY
PART
NO.
NO.
DESCRIPTION
1
37280
2
26727
6
33734
7
36557
12
36775
12A
36558
12B
36694
14
28277
15
30589
16
34839A
17
31335
18
651018
19
36281
20
32600
30
36776
40
35544A
35545A
35546
41
35541
35542
35543
42
35547A
35548A
35549
43
20381
45
36777
46
32610A
48
27241
50
37032
52
29914
69
35261
70
34311E
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
37288
126
37289
130
6021A
135
35395
150
31672
151
31673
151A40017
KEY
PART
NO.
NO.
DESCRIPTION
Cylinder (Ind. 2,20 & 150)
169
36783
*
Dowel Pin
172
36784
Breather Element
174
30200
Breather Ass'y. (Incl. 6 & 12A)
178
29752
Breather Tube
182
6201
Breather Cover & Tube
184
26756
(Ind. 12B)
Breather Tube Elbow
185
36785
Washer
186
32653
Govamor Rod (Incl. 14)
189
650839
Governor Lever
191
36559A
Governor Lever Clamp
195
610973
Screw, Torx T-15, 8-32 x 19/
207
34336
64"
216
33086
Extension Spdng
223
650451
Oil Seal
224
36786
*
Crankshaft
238
650932
Piston, Pin & Ring Set (Std.)
Piston, Pin & Ring Set (.010"
239
34338
241
35797
OS)
245
35066
Piston, Pin & Ring Set (.020"
250
35065
OS)
260
36980
Piston & Pin Ass'yo(Std.) (Ind.
261
30200
43)
262
650831
Piston & Pin Ass'y. (.010" OS)
275
36790A
(Ind. 43)
Piston & Pin Ass'y. (.020" OS)
277
650988
285
35000A
(IncL 43)
287
650926
Ring Set (Std.)
Ring Set (.010" OS)
290
29774
Ring Set (.020 OS)
292
26460
Piston Pin Retaining Ring
298
28763
300
36916
Connecting Rod Ass'y.
301
36246
_ncl. 46)
305
35647
onnecting Rod Bolt
306
36996
*
Valve Lifter
307
35499
Camshaft (NCR)
309
650562
Oil Pump Ass y.
310
35648
Mounting Flange Gasket
313
34080
Mounting Flange (Incl. 72 thru
83,306,)
325
37152
370A 36261
Oil Dram Plug
370C 37199
Oil Seal
370K 36695
Governor Shaft
380
640174
Washer
390
590737
Governor Gear Ass'y. (Incl. 81)
400
37029A
Govemor Spool
Screw, 1/4-20 x 1-1/4"
416
36085
Flywheel Key
Flywheel
417
650821
Belleville Washer
900
---
Flywheel Nut
Solid State Ignition
900
---
Spark Plug Cover
Screw, Torx T-15, 10-24 x 15/
16"
Ground Wire
Cylinder Head Gasket
Cylinder Head
Exhaust Valve (Std.)
(Incl. 151)
Intake Valve (Std.) (Incl. 151)
Screw, 5/16-18 x 1-1/2 =
Resistor Spark Plug (RJ19LM)
Valve Spdng
Valve Spdng ,_
Intake Valve
Valve Cover Gasket
Valve Cover
Screw, 10-24 x 9/16"
Nut & Lock Washer, 1/4-28
Screw, 1/4-28 x 7/8"
Carburetor To Intake Pipe
Gasket
Intake Pipe
Governor Unk
Screw, 1/4-20 x 3/8"
S.E. Brake Bracket (Ind. 195)
Terminal
Throttle Unk
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, 1/4-20 x 1/2"
Muffler
Screw, 1/4-20 x 2-5/16"
Starter Cup
Screw, 8-32 x 21/64"
Fuel Une
Fuel Line Clamp
Screw, 10-32 x 35/64"
Fuel Tank (Incl. 292 & 301)
Fuel Cap
Oil Fill Tube
=O"-Ring
=O"-Ring
Screw, 10,32 x t/2"
Dipstick
Spacer
Spdng Clip
Lubdcation Decal
Pdmer Decal
Starter Decal
Carburetor (Ind. 184)
Rewind Starter
Gasket Set
_ncl. Items Marked *)
park Arrestor Kit
_ncl. 417)(Optional)
crew, 10-32 x 1/2" (Optional)
Replacement Engine 750830,
order from 71-999
Replacement Short Block
750806B,
order from 71-999
RPM High 2900 to 3200
NOTE: This engine could have been built
with 590694 starter).
NOTE:
All component dimensions given
in U.S. inches 1 inch = 25.4 mm
37
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