ScottBonnar

Scott Bonnar – Parts Buying Guide

Scott Bonnar Model 45 Spare Parts List & Reference Diagram

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The factory spare parts list for the Scott Bonnar Model 45 reel type mower, covering the 14", 17" and 20" cutting widths. Every part is listed below with its illustration number, description, quantity per machine and Scott Bonnar part number — and the full exploded reference diagram is reproduced in the viewer, so you can match a number on the drawing to a part in the table.

  • Models450415 (14"), 450423 (17") and 450431 (20")
  • Pages8
  • PublicationSB-117-69

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Every page of the original is reproduced below — no download needed.

Cover of the Scott Bonnar Spare Parts List and reference diagram for Reel Type Mower models 450415, 450423 and 450431
Front cover · click to enlarge
Scott Bonnar Model 45 spare parts list page 2, side frames, front roller, cutter assembly and sprocket parts
Page 2 — illustration nos. 1 to 29 · click to enlarge
Scott Bonnar Model 45 spare parts list page 3, sole plate, bottom blade, drums, ratchet boxes and drum shaft parts
Page 3 — illustration nos. 30 to 64 · click to enlarge
Exploded reference diagram of the Scott Bonnar Model 45 reel mower with every part numbered from 1 to 149
Pages 4 & 5 — exploded reference diagram · click to enlarge
Scott Bonnar Model 45 spare parts list page 6, sprockets, drum clutch, chains and handle parts
Page 6 — illustration nos. 65 to 105 · click to enlarge
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Scott Bonnar Model 45 spare parts list page 7, engine clutch, engine shaft, chain case and throttle parts
Page 7 — illustration nos. 106 to 149 · click to enlarge
Back cover listing Scott Bonnar Sales Pty Ltd branch offices in each Australian state
Back cover — Scott Bonnar branch offices · click to enlarge

Full parts list (text)

The list below is a full transcription of publication SB-117-69, the Scott Bonnar spare parts list for the Model 45 reel type mower. The Illus. No. column is the number printed on the exploded reference diagram (pages 4 & 5 in the viewer above), so you can find a part on the drawing and read its part number here.

Where a part is the same across all three cutting widths, the number appears in the All models column. Where it differs, look under 14″ (450415), 17″ (450423) or 20″ (450431). A dash (—) means the original shows no number in that column.

Illustration nos. 1–29 — side frames, rollers and cutter

Scott Bonnar Model 45 spare parts, illustration numbers 1 to 29
Illus. No. Description No. per All models 14″ 17″ 20″
1 L.H. Side Frame 1 454651
2 R.H. Side Frame 1 451020
3 Front Roller 1 401031 454280 451039
4 Front Roller Shaft 1 451362 454301 451047
5 Roller Shaft Spacer 2 163811
6 Roller Shaft Nut 1 2321208
6 Clamp Pin Nut 1 2321208
7 Roller Shaft Washer 1 3711208
8 Frt. Roller Adj. Shaft 1 451389 454328 451055
9 Adj. Shaft Washer 2 3651180
9 Brng. Hsng. Clamp Bolt Washer 2 3651180
9 Drum R.H. Brng. Hsng. Washer 3 3651180
9 Inter. Brkt. Washer 2 3651180
9 Eng. Mntg. Washer 4 3651180
10 Adj. Shaft Nut 2 2641183
11 Frt. Roller Adj. Screw 1 454678
12 Adj. Screw Nut 1 351222
13 Frt. Roller Adj. Hand Nut 1 454694
14 Adj. Hand Nut Spring 1 454707
15 Adj. Hand Nut Spring Retainer 1 454723
16 Adj. Hand Nut Washer 1 454715
17 Cutter Assy. 1 451573 451581 451080
18 L.H. Cutter Brng. Hsng. 1 451426 451426 451098
19 Cutter Brng. Hsng. Oiler 2 1111164
20 R.H. Cutter Brng. Hsng. 1 451450 451450 451100
21 Cutter Brng. 2 1127459 1127459 1127554
22 Cutter Brng. Shield 2 451477 451477 453190
23 Cutter Sprkt. 1 451485 451485 451119
24 Cutter Sprkt. Nut 1 2441244
24 Drum Sprkt. Nut 1 2441244
24 Chain Adj. Nut 1 2441244
24 Eng. Sprkt. Nut 1 2441244
25 Cutter Sprkt. Washer 1 3651243
25 Drum Sprkt. Washer 1 3651243
25 Eng. Shaft Sprkt. Washer 1 3651243
26 Cutter Sprkt. Key 1 3802051
26 Pawl Holder Key 3802051 1 Off 1 Off 2 Off
26 Drum Sprkt. Key 1 3802051
26 Eng. Sprkt. Key 1 3802051
27 Cutter Brng. Hsng. Pivot Bolt 2 453261
28 Pivot Bolt Nut 2 2321180
28 R.H. Brng. Hsng. Clamp Bolt Nut 1 2321180
28 Sole Plate Mntg. Nut 4 2321180
28 Drum Brng. Hsng. Nut 6 2321180
28 Inter. Brkt. Nut 2 2321180
28 Handle Mntg. Nut 3 2321180
28 Handle Cover Plate Bott. Nut 1 2321180
28 Chain Case Nut 2 2321180
29 Pivot Bolt Washer 2 3711180
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Illustration nos. 30–64 — sole plate, bottom blade, drums and drum shaft

Scott Bonnar Model 45 spare parts, illustration numbers 30 to 64
Illus. No. Description No. per All models 14″ 17″ 20″
30 Cutter Brng. Hsng. Clamp Bolt 2 453270
31 L.H. Brng. Hsng. Clamp Nut 1 213145
32 Cutter Adj. Screw 2 453288
33 Adj. Screw Nut 2 453296
34 Adj. Screw Washer 2 3651164
Sole Plate Assy. W/-Blade 1 451506 454360 451127
35 Sole Plate 1 454555 454379 453309
36 Bottom Blade 1 391435 391700 392040
37 Bottom Blade Screw 2071924 5 Off 6 Off 7 Off
38 Sole Plate Mntg. Bolt 4 191070
39 Sole Plate Mntg. Washer 4 3661186
39 Drum Brng. Hsng. Washer 6 3661186
39 Handle Mntg. Washer 3 3661186
39 Chain Case Washer 2 3661186
39 Eng. Mntg. Lock Washer 4 3661186
39 Sole Plate Mntg. Washer 4 3661186
39 Eng. Table Mntg. Washer 4 3661186
40 Deflector Assy. 1 454045 454387 451135
41 Deflector Adj. Clamp 2 451143
42 Deflector Adj. Clamp Screw 2 432428
Drum Assy. W/-Bush 2 451514 451530
43 Drum 2 451522 451549
43 Outer Drum 2 451565
44 Drum Bush 2 3111119 3111119
44 Outer Drum Bush 2 3111202
Centre Drum Assy. W/-Bush 1 451186
45 Centre Drum 1 453392
46 Centre Drum Bush 1 3111168
47 Drum Weight 1 451590 451590
48 Drum Weight Screw 2 3511041 3511041
Ratchet Box Assy. W/-Bush 2 454109 454109 451194
49 Ratchet Box 2 454117 454117 453405
50 Ratchet Box Bush 2 3111119
51 Ratchet Box Screw 3 3511025
52 Pawl Holder 14″ & 17″ 1 454133 454133
52 Pawl Holder 20″ 2 454125
53 Pawl Holder Screw 1 3162520 1 Off 1 Off 2 Off
54 Drum Pawl 6 333024
55 Drum Dirt Shield 2 454141 453413 453413
56 Drum Shaft 1 454150 454424 453421
57 Drum Shaft Collar 2 333120 333120 453430
58 Drum Shaft Collar Screw 2 3162306 3162306 3162520
59 Collar Screw Locknut 2 2481183
60 Drum Shaft L.H. Brng. Hsng. 1 453448
61 Drum Shaft R.H. Brng. Hsng. 1 453456
62 Drum Brng. Hsng. Bolt 6 192241
62 Eng. Table Mntg. Bolt 4 192241
63 Drum Shaft Brng. 2 1129017
64 Drum L.H. Brng. Spacer 1 453464
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Illustration nos. 65–105 — sprockets, drum clutch, chains and handle

Scott Bonnar Model 45 spare parts, illustration numbers 65 to 105
Illus. No. Description No. per All models 14″ 17″ 20″
65 Drum Sprkt. 30 Teeth 1 451207
66 Inter. Sprkt. Brkt. 1 451215
67 Large Inter. Sprkt. 39 Teeth 1 451223
Small Inter. Sprkt. Assy. W/.-Lining 1 451231
68 Small Inter. Sprkt. 13 Teeth 1 454643
69 Drum Clutch Lining 1 333032
70 Inter. Brkt. Bott. Bolt 1 191011
71 Large Inter. Sprkt. Brng. 1 1126045
72 Small Inter. Sprkt. Brng. 1 1126037
73 Clutch Oper. Sleeve 1 451354
74 Drum Clutch Release Lever 1 453560
75 Drum Clutch Release Brkt. 1 454635
76 Release Brkt. Bolt 1 3181906
77 Release Brkt. Nut 1 2321163
77 Outer Cone Nut 3 2321163
77 Eng. Shaft Brng. Hsng. Nut 2 2321163
77 Eng. Clutch Adj. Screw Nut 1 2321163
78 Release Brkt. Washer 1 3711163
78 Outer Cone Washer 3 3711163
78 Eng. Shaft Brng. Hsng. Washer 2 3711163
79 Clutch Cable Assy. 1 451240
80 Clutch Lever 1 403010
81 Clutch Lever Pivot 1 454627
82 Lever Pivot Retainer 1 1505122
82 Anchor Pin Retainer 1 1505122
83 Clutch Wire Anchor Pin 1 454010
84 Clutch Oper. Bolt 1 1215863
85 Oper. Bolt Nut 1 2601165
86 Oper. Bolt Washer 1 143503
87 Clutch Cable Clip 2 1411012
88 Eng./Cutter Chain Adj. Slide 1 453608
89 Eng./Cutter Chain Adjustor 1 451258
90 Eng./Cutter Chain 1 2984806
91 Cutter/Inter. Chain 1 2981590
92 Inter./Drum Chain 1 2981385
93 Lower Handle 1 454168 454432 451266
94 Handle Mntg. Bolt 3 191020
95 Upper Handle 1 451274
96 Upper Handle Cover Plate W- Medallion 1 453739
97 Cover Plate Bott. Screw 1 1213807
97 Eng. Mntg. Bolt 4 1213807
98 Cover Plate Clamp 1 351572
99 Cover Plate Top Screw 1 1191881
100 Cover Plate Top Nut 1 2581127
101 Handle Pivot 1 453747
102 Handle Pivot Nut 2 351222
103 Handle Bar Grip 2 403037
104 Grass Box 1 454184 454459 451290
105 Engine Clutch Body 1 453835
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Illustration nos. 106–149 — engine clutch, engine shaft and chain case

Scott Bonnar Model 45 spare parts, illustration numbers 106 to 149
Illus. No. Description No. per All models 14″ 17″ 20″
106 Clutch Body Key 1 453843
Eng. Clutch Outer Cone Assy. W/- Lining 1 451311
107 Eng. Clutch Outer Cone 1 453851
108 Eng. Clutch Lining 1 453860
109 Outer Cone Screw 3 2084300
110 Eng. Clutch Inner Cone 1 453878
111 Inner Cone Key 1 3802267
112 Eng. Clutch Thrust Race 1 3534016
113 Eng. Clutch Spring 1 453886
114 Eng. Shaft Clamp Pin 1 453894
116 Clamp Pin Washer 1 3661204
117 Engine Shaft 1 454248 454512 453907
118 Eng. Shaft Sprkt. 12 Teeth 1 453990
119 Eng. Shaft Brng. 1 1121204
120 Eng. Shaft Brng. Shield 1 451602
121 Eng. Shaft Brng. Hsng. 1 451645
122 Brng. Hsng. Bolt 2 1212743
123 Eng. Shaft Dirt Shield 1 3612012
124 Eng. Clutch Oper. Box 1 333040
125 Op. Box Packer 1 333059
126 Op. Box Screw 3 2062260
127 Op. Box Nut 3 2481126
128 Op. Box Washer 3 3691125
129 Eng. Clutch Fork 1 331010
130 Eng. Clutch Fork Pivot 1 333067
131 Fork Pivot Retainer 2 2501028
132 Eng. Clutch Fork Spring 1 333091
133 Eng. Clutch Adj. Screw 1 173016
134 Eng. Clutch Thrust Pad 1 333112
135 Eng. Clutch Thrust Washer 1 331803
136 Eng. Clutch Oper. Lever 1 451320
137 Oper. Lever Washer 1 3651209
138 Oper. Lever Cotter 1 3321838
139 Chain Cover Plug 1 3521012
140 Chain Case 1 453640
141 Chain Case Mntg. Brkt. 2 454598
142 Chain Case Screw 2 1191908
143 Engine Table 1 454256 454520 451338
144 Throttle Cable Assy. 1 332339 451346 451346
145 Throttle Control Lever 1 1601019
146 Throttle Return Spring 1 333139
147 Return Spring Brkt. 1 333147
148 G/box Support Rubber 2 453085
149 R/H Cutter Brng. Hsg. Seal 1 451610
149 R/H Cutter Brng. Hsg. Seal 1 451653 451653

Transcribed from the original Scott Bonnar publication SB-117-69. The scanned pages in the viewer above are the authoritative source — if a number matters for an order, check it against the scan.

Scott Bonnar Sales Pty. Ltd. branch offices (as printed)

The back cover lists the company’s branch offices at the time of publication. These are recorded here for historical reference only — none of these offices still trade.

  • Queensland: 27 Ipswich Road, Woolloongabba, 4102
  • New South Wales: 357 Liverpool Road, Ashfield, 2131
  • Victoria: 265 Huntingdale Road, Huntingdale, 3166
  • South Australia: 33–47 Holland Street, Thebarton, 5031
  • Western Australia: 104 Belgravia Street, Belmont, 6104
  • Tasmania: B. J. Electrics Pty. Ltd., 23A Frederick Street, Launceston, 7250