CRAFTSMAN
4-CYCLE
ENGmNE
MODEL
NUMBER
143.044500
KEY
PART
KEY
PART
NO.
NO.
DESCRIPTION
NO.
NO.
1
37791
Cylinder
(Includes
Key #2 and 20)
185
37794
2
26727
Dowel
Pin
186
32653
6
33734
Breather
Element
189
650839
7
36557
Breather
Assembly
191
36559A
(Includes
Key Numbers
6 and 12A)
12
32447
Breather
Tube
195
610973
12A
36558
Breather
Cover & Tube
207
34336A
12B
36694
Breather
Tube Elbow
216
33086
14
28277
Washer
223
650451
15
30589
Governor
Rod (Includes
Key #14)
224
37793
16
34839A
Governor
Lever
238
650932
17
31335
Governor
Lever Clamp
239
34338
18
651018
Screw, To15 #8-32 x 19/64"
241
35797
19
33578
Extension
Spring
245
35066
20
32600
Oil Seal
250
35065
30
37804
Crankshaft
260
36980B
40
40053
Piston,
Pin & Ring Set (Standard)
261
30200
41
40051
Piston
& Pin Asssembly
(Standard)
262
650831
(Includes
Key Number
43)
275
37498
42
40022
Ring Set (Standard)
275A
36838A
43
20381
Piston
Pin Retaining
Ring
45
30963B
Connecting
Rod Assembly
(Includes
Key Number
48)
277
650988
46
32610A
Connecting
Rod Bolt
279
28763
48
27241
Valve Lifter
280
37717
50
37575
Camshaft
(NCR)
284
36663
(Includes
Key Number
104)
52
29914
Oil Pump Assembly
284A
650821
69
37609
* Mounting
Flange
Gasket
285
35000A
70
37608
Mounting
Flange
(Includes
Key
287
650926
#72 thru 83, 306, 309A and 311A)
290
29774
72
37614
Oil Drain Plug
292
26460
72A
28534
Oil Drain Plug
298
28763
75
27897
Oil Seal
300
36916
80
30574A
Governor
Shaft
301
37844
81
30590A
Washer
305
35647A
82
30591
Governor
Gear Assembly
306
37610
(Includes
Key Number
81)
307
35499
83
30588A
Governor
Spool
309
650562
86
650488
Screw
1/4-20x
1-1/4"
309A
650783
89
611298
Flywheel
Key
310
35648
90
611299
Flywheel
311A
37611
92
650815
Belleville
Washer
313
34080
93
650816
Flywheel
Nut
370
37269
100
34443C
Solid State Ignition
370C
37318
101
610118
Spark
Plug Cover
370K
36695
103
651007
Screw, To15 #10-24
x 15/16"
370R
37849
104
37480
Cam Bushing
380
640339
110
37047
GroundWire
390
590737
119
37755
* Cylinder
Head Gasket
400
37809
120
37807
Cylinder
Head
125
37806
Exhaust
Valve (Standard
Size)
416
37530
(Includes
Key Number
151 )
126
37805
Intake Valve (Standard
Size)
417
650821
(Includes
Key Number
151)
900
750884
130
6021A
Screw
5/16-18
x !ol/2"
135
35395
Resistor
Spark
Plug (RJ19LM)
900
750885
150
31672
Valve Spring
151
31673
Valve Spring
Cap
151A
40016A
Intake Valve Seal
169
36783
* Valve
Cover Gasket
172
36784
Valve Cover
174
30200
Screw
#10-24
x 9/16"
178
29752
Nut and LockWasher
1/4-28
182
6201
Screw
1/4-28 x 7/8"
184
26756
* Gasket,
Carburetor
to Intake
Pipe
DESCRIPTION
Intake Pipe
Governor
Link
Screw
1/4-20 x 3/8"
S.E. Brake Bracket
(Includes
Key Number
195)
Terminal
Throttle
Link
R.RM. 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 (Craftsman)
Blower
Housing
Screw
#10-24
x 9/16"
Screw
1/4-20 x 1/2"
Muffler
Spark
Arrestor
Muffler
(Optional)
(Includes
Key Numbers
284, 284A, 416 and 417)
Screw
1/4-20 x 2o5/16"
Screw
#10-32
x 39/64"
Heat Shield
Muffler
Deflector
(Optional)
(Includes
Key Number
284A)
Screw
#10-32
x 1/2" (Optional)
Starter
Cup
Screw
#8-32 x 21/64"
Fuel Line
Fuel Line Clamp
Screw
#10-32
x 39/64"
Fue! Tank (Includes
Key #292,
301 )
Fuel Cap
Oi! Fill Tube (Includes
Key #306)
'O" Ring
'O" Ring
Screw
#10-32
x 1/2"
Screw
#10-24
x 3/4"
Dipstick
Hold Down Bracket
Spacer
Name Decal
Primer
Decal (3X)
Starter
Deca!
Warning
Decal
Carburetor
(Includes
Key #184)
Rewind
Starter
Gasket
Set
(Includes
All Items Marked
* )
Spark
Arrestor
Kit (Optional)
(Includes
Key Number
417)
Screw
#10-32
x 1/2" (Optional)
Replacement
Engine
(order from 71 °999)
Replacement
Short Block
(order from 71-999)
RPMs:
High 2900 to 3200
NOTE:
This engine
could have been built with
Recoil
Starter
#590694.
NOTE: All component dimensions given in U.S, inches
1 inch = 25.4 mm
37