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CRAFTSMAN
4-CYCLE
ENGINE
MODEL NUMBER 143.996504
I<L='Y PART
NO.
NO.
DESCRIP'I1ON
1
37266
2
26727
6
33734
7
36557
12
36775
12A 36558
12B
36694
14
28277
15
30589
16
34839A
17
31335
18
651018
19
36281
2O
32600
3O
358O1
4O
4OO27
4O028
41
40025
40026
42
40OO6
40007
43
20381
45
36777
46
32610A
48
27241
5O
36778
52
29914
69
35261
70
34311E
72
30572
73
28833
75
27897
80
30574A
81
30590A
82
30591
_. 83
30588A
86
65O488
89
611004
90
611150
92
650815
93
650816
100
3444313
101
610118
103
651007
110
37047
110A 36953
110B 36954
119
36787
120
36825
125
37288
126
37289
130
6021A
135
35395
150
31672
151
31673
151A 40017
169
36783
Cylinder (Includes Key
Numbers 2, 20 and 150)
Dowel Pin
Breather Element
Breather Assembly (Includes
Key Numbers 6 and 12A)
BreatherTube
Breather Cover & Tube
(Includes Key Number 12B)
BreatherTube Elbow
Washer
Governor Rod (Includes Key #14)
Governor Lever
Governor LeverCEamp
Screw, Torx T-15, #8°32 x 19/64"
ExtensionSpring
Oil Seal
Crankshaft
Piston, Pin & Ring Set (Standard)
Piston, Pin & Ring Set (.010" OS)
Piston& Pin Assembly (Standard)
(Includes Key Number 43)
Piston & Pin Assembly (.010" OS)
(Includes Key Number 43)
Ring Set (Standard)
Ring Set (,010" OS)
Piston Pin Retaining Ring
Connecting Rod Assembly
(Includes Key Number 46)
Connecting Rod Bolt
Valve Lifter
Camshaft (MCR)
Oil Pump Assembly
• Mounting Flange Gasket
Mounting Flange (Includes Key
Numbers 72 thru 83 end 306)
Oil Drain Plug (Includes Key #73)
Drain Plug Gasket
Oil Seal
Governor Shaft
Washer
Governor Gear Assembly
(includes Key Number 61)
Governor Spool
Screw, 1/4-20 x 1-1/4"
Flywheel Key
Flywheel
BeJleville Washer
Flywheel Nut
Solk:lState Ignitk_n
Spark Plug Cover
Screw, "Ion(T- 15, #10-24 x 15/16"
GroundWira
GroundWire
D,C. Starter Wire
• Cylinder Head Gasket
CylinderHead
Exhaust Valve (Standard)
(Includes Key Number 151)
Intake Valve (Standard)
(Includes Key Number 151)
Screw, 5/16-18 x 1-1/2"
Resistor Spark Plug(RJ 19LM)
Valve Spring
Valve SpringCap
Intake Valve Seal
* Valve Cover Gasket
KEY PART
NO.
NO.
DESCRIPTION
172
36784
Valve Cover
174
30200
Screw, #10-24 x 9/16"
178
29752
Nut & Lock Washer, 1/4-28
182
6201
Screw, 1/4-28 x 7/8"
184
26756
• Gasket, Carburetor To Intake Pipe
185
36785
Intake Pipe
186
32653
Governor Link
189
650831
Screw, 1/4-20 x t/2"
191
36559A
S.E. Brake Bracl_et(includes #195)
195
610973
Terrdlnai
196
35035
Power Restart Switch
207
34336
Throttle Link
216
33086
R.P.M. Adjusting Lever
223
650451
Screw, 1/4-20 x I"
224
36786
* Intake Pipe Gasket
238
650932
Screw, #t0-32 x 49/64"
239
34338
• Gasket, Air Cleaner
241
36919
Collar, Air Cleaner
245
36905
Filter, Air Cleaner
250
36920
Cover, Air Cleaner
260
36980
BlowerHousing
261
30200
Screw, #10-24 x 9/16"
262
650831
Screw, 114-20x 1/2"
263A 36921
Starter Grill
275
36790
Muffler
277
650988
Screw, 1/4-20 x 2-5/16"
285
350(_A
Starter Cup
287
650926
Screw, #8-32 x 21/64"
290
29774
Fuel Line
292
26460
Fuel LineClamp
298
28763
Screw, #10-32 x 35/64"
300
36916
Fuel Tank (Includes
Key Numbers 292 and 301)
301
36246
Fuel Cap
305
35647
Oil FillTube
306
36996
" "O"-Ring
307
35499
"O*-Ring
309
650562
Screw, #10-32 x 1/2"
310
35648
Dipstick
313
34080
Spacer
314
650767
Screw, #8-32 x27/64"
315
36952
AltamatorCoil
322
35013
Connector Body
322A 610885
Connector Body
325
35249
SpringClip
325A 37152
SpdngClip
347
651038
Screw, #10-32 x 51/64"
370A 36261
LubricationDecal
37(X_ 37199
PrimerDecal
380
640174
Carburetor (Includes Key #184)
390
590739
Rewind Starter
395
35709
Electric Starter Motor (12 Volt)
400
3O792B
Gasket Set
(Includes All Items Marked *)
416
36085
Spark Arrestor Kit (Optional)
(Includes Key Number 417)
417
650821
Screw, 10-32 x 1/2" (Optional)
900
750832
Replacement Small Block
(Order from 71-999)
.....
Replaeement Engine- NONE
RPM:
High: 2900 to 3200
NOTE: This engine could have been built with Starter
#590702.
NOTE: All component dimensions given in U.S. inches
1 inch = 25.4 mm
41
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