T1069-93120 (910)
BRUSHCUTTERS
October 1999
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.]
BC4300FWM
APPLICABLE SERIAL NUMBERS:
900101 and up
Fig.1 DRIVE UNIT & ACCESSORIES
BC4300FWM
1 3540-11102 HOUSING-COMP 1
2 3144-11150 • SEAL 1
3 0263-20610 • SCREW 1
4 3540-11311 DRUM 1
5 06004-06202 BEARING 1
6 04065-03515 RING 1
7 04064-01510 RING 1
8 3540-11410 SPACER 1
9 6340-12101 PIPE-COMP 1
10 3260-11410 RING 1
11 6340-12210 SHAFT 1
12 6562-13000 GEARCASE-ASS’Y 1
13 6562-13110 • GEARCASE 1
14 06000-06000 • BEARING 1
15 06000-06202 • BEARING 1
16 3130-13141 • SEAL 1
17 04065-03515 • RING 1
18 01252-30510 • BOLT 1
19 3540-13212 • SHAFT, gear 1
20 3540-13220 • GEAR 1
21 01643-31032 • WASHER 1
22 3544-13280 • WASHER 1
23 3540-13290 • BOLT 1
24 3540-13311 • PINION 1
25 06000-06001 • BEARING 1
26 06001-06001 • BEARING 1
27 3130-13270 • RING 1
28 04065-02812 • RING 1
29 3540-13260 • BOLT 1
30 0224-40610 • BOLT 1
31 6251-13240 • HOLDER(A) 1
32 3540-13251 • HOLDER(B) 1
33 3540-14900 BRACKET-ASS’Y 1
34 3540-14910 • BRACKET 1
35 3540-14920 • CAP-L 1
36 3540-14930 • CAP-U 1
37 3540-14140 • ABSORBER 2
38 3640-14150 • CLAMP-A 1
39 3540-14160 • CLAMP-B 1
40 01252-30525 • BOLT 6
41 01252-30530 • BOLT 4
42 6550-11420 HANGER 1
43 0225-10616 BOLT 1
44 3540-11441 BRACKET-COMP 1
45 3540-11432 • BRACKET 1
46 0224-00635 • BOLT 1
47 3540-11460 • NUT 1
48 01642-20608 • WASHER 1
49 3540-11450 • SPACER 1
50 0224-00625 • BOLT 1
51 01642-20608 • WASHER 1
52 T3046-12510 PLATE, name 1
53 6425-12552 PLATE 1
54 2175-84001 LEVER-ASS’Y 1
55 1638-84130 • LEVER 1
56 1638-84140 • LEVER 1
57 1638-84150 • STOPPER 1
58 1638-84160 • CLAMP 1
59 2175-84301 • CABLE-C 1
Key# PART NUMBER DESCRIPTION
Q'TY
/UNIT
NOTE
60 1638-84170 • SPRING 1
61 1638-84180 • SPRING 1
62 0263-60620 • SCREW 1
63 1638-84190 • NUT 1
64 0260-60535 • SCREW 1
65 1638-84210 • NUT 1
66 1638-84220 • SCREW 1
67 3540-13283 COVER 1
68 3140-13261 SHAFT 1
69 6220-17201 HARNESS-ASS’Y 1
70 6489-24000 GUARD-ASS’Y 1
71 6489-24110 • GUARD 1
72 6489-24200 • PLATE-COMP 1
73 6489-24210 • • PLATE 1
74 6489-24220 • • BRADE 1
75 0277-10412 • • SCREW 1
76 6489-24120 • PLATE 1
77 01252-30516 • BOLT 4
78 01601-20513 • WASHER 4
79 3542-91000 TOOL-SET 1
80 3541-91110 • BAG 1
81 1030-91340 • DRIVER 1
82 3144-91160 • SOCKET 1
83 09007-00425 • WRENCH 1
84 09007-00528 • WRENCH 1
85 3540-91110 • BAR 1
86 3540-91120 • SPANNER 1
87 6468-91150 BOLT 4
88 3523-17112 PROTECTOR 1
89 3540-93120 BAND 1
90 6298-14343 SAW 1
91 6251-15910 COVER, blade 1
92 6465-14200 HANDLE-L 1
93 6350-14230 HANDLE 1
Key# PART NUMBER DESCRIPTION
Q'TY
/UNIT
NOTE
Fig.1 DRIVE UNIT & ACCESSORIES
BC4300FWM
Fig.2 ENGINE UNIT
BC4300FWM
1 4500-12110 CYLINDER 1
2 3310-12281 BOLT 4 M5x20
3 4500-13120 GASKET, base 1
4 4500-21100 CRANKCASE COMP 1
5 2629-21130 • PIN 3
6 4500-21140 GASKET, case 1
7 06030-06201 BEARING 2
8 4810-21210 OIL SEAL 1
9 1650-21220 OIL SEAL 1
10 01252-30530 BOLT 4 M5x30
11 04065-03212 SNAP RING 1
12 4500-41110 PISTON 1
13 1400-41220 RING 2
14 2850-41310 PIN 1
15 1300-41320 RING 2
16 2850-41410 BEARING 1
17 2850-41510 WASHER 2
18 4500-42000 CRANKSHAFT COMP 1
19 4500-51110 SHOE, clutch 2
20 4500-51220 SPRING 1
21 1200-51211 SCREW 2
22 1200-51230 WASHER 2
23 1200-51241 WASHER 2
24 4500-71110 ROTOR 1
25 4570-71200 COIL ASS'Y 1
26 4570-71220 • CORD 1
27 2616-71320 • CAP 1
28 3356-21130 • PIN 2
29 1900-72111 CAP, plug 1
30 1900-72120 SPRING 1
31 4500-72150 BOLT 2 M4x22
32 1650-43230 NUT 1
33 1000-43240 KEY 1
34 4570-15110 MUFFLER 1
35 01252-30565 BOLT 2 M5x65
36 3310-31720 BOLT 1 M5x14
37 4570-15211 GASKET 1
38 4570-15220 PLATE 1
39 0263-90514 SCREW 1 M5x14
40 4500-31110 COVER 1
41 3310-12281 BOLT 4 M5x20
42 4500-31210 PLATE 1
43 4570-32110 COVER 1
44 4500-32120 SCREW 3 M5x12
45 4570-31900 STAND-C 1
46 4570-31920 • PACKING 1
47 3356-32210 SCREW 2
48 0263-90520 SCREW 1 M5x20
49 T1011-73200 CORD-C 1
50 1140-72231 CLAMP 1
51 5933-73110 SPARKPLUG 1
52 4500-75100 RECOIL ASS'Y 1
53 4500-75120 • REEL 1
54 4500-75150 • SCREW 1
55 1850-75130 • SPRING, spiral 1
56 4500-75180 • COLLAR 1
57 4500-75190 • ARM 1
58 4500-75160 • ROPE 1
59 1140-75320 • KNOB 1
60 5500-75170 • PLATE, stopper 1
61 4500-75210 PULLEY 1
62 4500-75511 SCREW 4 M6x14
63 4500-75310 PLATE 1
64 01643-30823 WASHER 1
Key# PART NUMBER DESCRIPTION
Q'TY
/UNIT
NOTE
65 1695-13161 INSULATOR 1
66 1695-13171 PIPE 2
67 4500-13150 GASKET, insulator 1
68 1695-13131 GASKET, carburetor 1
69 0263-90530 SCREW 2 M5x30
70 4570-81000 CARBURETOR ASS'Y 1
71 4570-81150 • VALVE 1
72 1695-81320 • PACKING 1
73 1695-81180 • FLOAT 1
74 1614-81310 • CHAMBER 1
75 1400-81660 • PACKING 1
76 1400-81650 • SCREW 1
77 1695-81240 • JET 1
78 1861-81230 • JET 1
79 1418-81210 • NEEDLE 1
80 1030-81000-16 • CLIP 1
81 1030-81000-17 • RECEIVE 1
82 1038-81002-34 • PACKING 1
83 1030-81000-14 • SPRING 1
84 1141-81110 • CAP 1
85 1141-81120 • CAP 1
86 0263-10416 • SCREW 2
87 1695-81290 • SCREW 1
88 1695-81270 • NUT 1
89 1695-81280 • BAND 1
90 1695-81580 • WASHER 1
91 1650-81260 • SPRING 1
92 1695-81540 • O-RING 1
93 1695-81250 • SCREW 1
94 1220-81410 • PIPE 1
95 1220-81420 • STAY 1
96 0263-00306 • SCREW 1
97 1181-81210 • PIN 1
98 1695-81340 • HINGE 1
99 1695-81360 • VALVE 1
100 1179-81501 • COCK-A 1
101 1179-81211 • BOLT 1
102 1179-81221 • PACKING 2
103 4570-82000 CLEANER-A 1
104 1400-82113 • BODY 1
105 4570-82120 • COVER 1
106 1418-82130 • ELEMENT 1
107 1400-82141 • SCREEN 1
108 4550-82150 SCREW 2
109 1133-82060 LABEL 1
110 T1047-85000 TANK-A 1
111 2133-85302 • CAP-A 1
112 4570-85230 • • CAP 1
113 1030-85140 • • ELEMENT 1
114 4500-85220 • • PACKING 1
115 3317-57242 • • STOPPER 1
116 1400-85104 • JOINT-A 1
117 1400-85141 • • GROMMET 1
118 1000-08050 • • TUBE 1
119 1410-86130 • • CLIP 1
120 3073-86130 CLIP 1
121 1600-86120 SCREW 4 M5x22
122 1660-31121 LABEL, cover 1
123 T1012-75410 LABEL, recoil 1
124 2634-31420 LABEL, CE 1
Key# PART NUMBER DESCRIPTION
Q'TY
/UNIT
NOTE
Fig.2 ENGINE UNIT
BC4300FWM
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