T1069-93120 (910)
BRUSHCUTTERS
BC4300FWM
NOTE :
1. Use KOMATSU ZENOAH genuine parts as specified in the parts list for repair and/or replacement.
2. KOMATSU ZENOAH does not warrant the machines, which have been damaged by the use of any
parts other than those specified by the company.
3. When placing parts orders for repair and/or replacement, check if the model name and the serial
number are applicable to those specified in the parts list, then use parts number described in the
parts list.
4. The contents described in the parts list are accurate as of the date and may change due to
improvement.
5. The parts for the machine shall be supplied ten (10) years after the machine is discontinued. [It is
possible that some specific parts may be subject to change of their delivery term and list price
within the limit of ten (10) years after the machine is discontinued. It is also possible that some
parts may be available even after the limit of ten (10) years.]
October 1999
APPLICABLE SERIAL NUMBERS:
900101 and up
BC4300FWM
Fig.1 DRIVE UNIT & ACCESSORIES
Q'TY
Q'TY
Key# PART NUMBER
DESCRIPTION
NOTE
Key# PART NUMBER
1638-84170 • SPRING
1638-84180 • SPRING
DESCRIPTION
NOTE
/UNIT
/UNIT
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
6
4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
3540-11102 HOUSING-COMP
3144-11150 • SEAL
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
4
4
1
1
1
1
1
1
1
1
4
1
1
1
1
1
1
3
0263-20610 • SCREW
3540-11311 DRUM
0263-60620 • SCREW
1638-84190 • NUT
4
5
06004-06202 BEARING
04065-03515 RING
0260-60535 • SCREW
1638-84210 • NUT
6
7
04064-01510 RING
1638-84220 • SCREW
3540-13283 COVER
3140-13261 SHAFT
8
3540-11410 SPACER
6340-12101 PIPE-COMP
3260-11410 RING
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
6220-17201 HARNESS-ASS’Y
6489-24000 GUARD-ASS’Y
6489-24110 • GUARD
6489-24200 • PLATE-COMP
6489-24210 • • PLATE
6489-24220 • • BRADE
0277-10412 • • SCREW
6489-24120 • PLATE
01252-30516 • BOLT
01601-20513 • WASHER
3542-91000 TOOL-SET
3541-91110 • BAG
6340-12210 SHAFT
6562-13000 GEARCASE-ASS’Y
6562-13110 • GEARCASE
06000-06000 • BEARING
06000-06202 • BEARING
3130-13141 • SEAL
04065-03515 • RING
01252-30510 • BOLT
3540-13212 • SHAFT, gear
3540-13220 • GEAR
01643-31032 • WASHER
3544-13280 • WASHER
3540-13290 • BOLT
1030-91340 • DRIVER
3144-91160 • SOCKET
09007-00425 • WRENCH
09007-00528 • WRENCH
3540-91110 • BAR
3540-13311 • PINION
06000-06001 • BEARING
06001-06001 • BEARING
3130-13270 • RING
3540-91120 • SPANNER
6468-91150 BOLT
04065-02812 • RING
3540-13260 • BOLT
3523-17112 PROTECTOR
3540-93120 BAND
0224-40610 • BOLT
6251-13240 • HOLDER(A)
3540-13251 • HOLDER(B)
3540-14900 BRACKET-ASS’Y
3540-14910 • BRACKET
3540-14920 • CAP-L
6298-14343 SAW
6251-15910 COVER, blade
6465-14200 HANDLE-L
6350-14230 HANDLE
3540-14930 • CAP-U
3540-14140 • ABSORBER
3640-14150 • CLAMP-A
3540-14160 • CLAMP-B
01252-30525 • BOLT
01252-30530 • BOLT
6550-11420 HANGER
0225-10616 BOLT
3540-11441 BRACKET-COMP
3540-11432 • BRACKET
0224-00635 • BOLT
3540-11460 • NUT
01642-20608 • WASHER
3540-11450 • SPACER
0224-00625 • BOLT
01642-20608 • WASHER
T3046-12510 PLATE, name
6425-12552 PLATE
2175-84001 LEVER-ASS’Y
1638-84130 • LEVER
1638-84140 • LEVER
1638-84150 • STOPPER
1638-84160 • CLAMP
2175-84301 • CABLE-C
BC4300FWM
Fig.2 ENGINE UNIT
BC4300FWM
Fig.2 ENGINE UNIT
Q'TY
Q'TY
Key#
PART NUMBER
DESCRIPTION
NOTE
Key#
PART NUMBER
DESCRIPTION
INSULATOR
NOTE
/UNIT
/UNIT
1
2
3
4
5
6
7
8
9
4500-12110
3310-12281
4500-13120
4500-21100
2629-21130
4500-21140
06030-06201
4810-21210
1650-21220
01252-30530
04065-03212
4500-41110
1400-41220
2850-41310
1300-41320
2850-41410
2850-41510
4500-42000
4500-51110
4500-51220
1200-51211
1200-51230
1200-51241
4500-71110
4570-71200
4570-71220
2616-71320
3356-21130
1900-72111
1900-72120
4500-72150
1650-43230
1000-43240
4570-15110
01252-30565
3310-31720
4570-15211
4570-15220
0263-90514
4500-31110
3310-12281
4500-31210
4570-32110
4500-32120
4570-31900
4570-31920
3356-32210
0263-90520
T1011-73200
1140-72231
5933-73110
4500-75100
4500-75120
4500-75150
1850-75130
4500-75180
4500-75190
4500-75160
1140-75320
5500-75170
4500-75210
4500-75511
4500-75310
01643-30823
CYLINDER
BOLT
1
4
1
1
3
1
2
1
1
4
1
1
2
1
2
1
2
1
2
1
2
2
2
1
1
1
1
2
1
1
2
1
1
1
2
1
1
1
1
1
4
1
1
3
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
4
1
1
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
1695-13161
1695-13171
4500-13150
1695-13131
0263-90530
4570-81000
4570-81150
1695-81320
1695-81180
1614-81310
1400-81660
1400-81650
1695-81240
1861-81230
1418-81210
1
2
1
1
M5x20
PIPE
GASKET, base
CRANKCASE COMP
• PIN
GASKET, case
BEARING
OIL SEAL
OIL SEAL
BOLT
SNAP RING
PISTON
RING
PIN
RING
BEARING
WASHER
CRANKSHAFT COMP
SHOE, clutch
SPRING
SCREW
WASHER
WASHER
ROTOR
GASKET, insulator
GASKET, carburetor
SCREW
CARBURETOR ASS'Y
• VALVE
• PACKING
• FLOAT
• CHAMBER
• PACKING
• SCREW
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
4
1
1
1
M5x30
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
M5x30
• JET
• JET
• NEEDLE
1030-81000-16 • CLIP
1030-81000-17 • RECEIVE
1038-81002-34 • PACKING
1030-81000-14 • SPRING
1141-81110
1141-81120
0263-10416
1695-81290
1695-81270
1695-81280
1695-81580
1650-81260
1695-81540
1695-81250
1220-81410
1220-81420
0263-00306
1181-81210
1695-81340
1695-81360
1179-81501
1179-81211
1179-81221
4570-82000
1400-82113
4570-82120
1418-82130
1400-82141
4550-82150
1133-82060
T1047-85000
2133-85302
4570-85230
1030-85140
4500-85220
3317-57242
1400-85104
1400-85141
1000-08050
1410-86130
3073-86130
1600-86120
1660-31121
T1012-75410
2634-31420
• CAP
• CAP
• SCREW
• SCREW
• NUT
COIL ASS'Y
• CORD
• CAP
• BAND
• WASHER
• SPRING
• O-RING
• SCREW
• PIPE
• STAY
• SCREW
• PIN
• PIN
CAP, plug
SPRING
BOLT
NUT
KEY
MUFFLER
BOLT
BOLT
GASKET
PLATE
SCREW
M4x22
98
99
• HINGE
M5x65
M5x14
• VALVE
• COCK-A
• BOLT
• PACKING
CLEANER-A
• BODY
• COVER
• ELEMENT
• SCREEN
SCREW
LABEL
TANK-A
• CAP-A
• • CAP
• • ELEMENT
• • PACKING
• • STOPPER
• JOINT-A
• • GROMMET
• • TUBE
• • CLIP
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
M5x14
M5x20
COVER
BOLT
PLATE
COVER
SCREW
M5x12
M5x20
STAND-C
• PACKING
SCREW
SCREW
CORD-C
CLAMP
SPARKPLUG
RECOIL ASS'Y
• REEL
• SCREW
• SPRING, spiral
• COLLAR
• ARM
CLIP
SCREW
LABEL, cover
LABEL, recoil
LABEL, CE
M5x22
• ROPE
• KNOB
• PLATE, stopper
PULLEY
SCREW
M6x14
PLATE
WASHER
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