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Scott Bonnar Model 45 Used Spare Parts
Please scoll down the page to view all available used parts for Scott Bonnar Model 45 cylinder mowers. All parts listed are in very good used condition, and have been thoroughly inspected and tested prior to listing. To enquire about any of the parts listed below please contact us.
For new replacement Scott Bonnar 45 parts please visit the Rover Scott Bonnar 45 Parts page.
Used Dead Man / Dead Stop Handle and Cable
As fitted to very late model Rover 45 models fitted with Briggs and Stratton 475 series, 3.5HP engines. Locates into small bracket on side of blower housing containing the ignition coil earth contact.
NO LONGER AVAILABLE SB45109
Used Operating Instructions Booklet
Original Rover Scott Bonnar Operating Instructions booklet. Six pages including information on preperation, height of cut, starting and operating, cutter & clutch cable adjustments, lubrication and safety. Thirteen photos/illustrations. Overall condition 7/10.
NO LONGER AVAILABLE SB45MANUAL
Used Name Plate / Serial Badge
Model 450520. Mower Number 01705
NO LONGER AVAILABLE SB4569k
Used Pulley and PTO Shaft Extension 
For use with Scott Bonnar 45 edger attachment. Screws onto PTO shaft through hole in top of chain case (on selected models). Includes nut
NO LONGER AVAILABLE SB4549
Used Shear Blade / Bottom Blade Holder ONLY
Suits 14" Model 45 mowers only. All threads and holes in very good condition. New replacement bottom blades and sharpening available - please contact us for a quote.
1 in stock
Used Shear Blade / Bottom Blade Holder ONLY
Suits 20" Model 45 mowers only. All threads and holes in very good condition. New heavy duty replacement bottom blades and sharpening available - please contact us for a quote.
NO LONGER AVAILABLE SB4512
Used Shear Blade / Bottom Blade Holder 
Suits 17" Model 45 mowers only. Original bottom blade fitted. Sharpening is available - please contact us for a quote.
NO LONGER AVAILABLE SB4538
Used Drive Clutch Hand Lever
1 in stock
Used Clutch Cable
Good conditon. Still within adjustment limits.
NO LONGER AVAILABLE SB4531
Used PTO Sprocket  4 in stock
Used PTO Bearing Holder  2 in stock
Used PTO Shaft 
Suits 240V electric Model 45 14 inch models only. 1 in stock
Used PTO Shaft & Bearing Holder Assembly  Suits 14 inch cut models only. Shaft, keyways and thread in excellent condition. Includes bearing, bearing holder (including bolts, nuts & washers), rubber bearing seals, woodruff key, sprocket, nut and washer. NO LONGER AVAILABLE SB4575 Used PTO Shaft & Bearing Holder Assembly  Suits 17 inch cut models only. Shaft, keyways and thread in excellent condition. Includes self aligning bearing, bearing holder (including bolts, nuts & washers), rubber bearing seal, woodruff key, original brass thrust pad and fibre washer, 12 tooth sprocket, washer and nut. NO LONGER AVAILABLE SB4527 Used PTO Shaft Seal  Installs onto PTO shaft to seal PTO bearing. NO LONGER AVAILABLE SB45103 Used Clutch Fork Spring  5 in stock
Used PTO Shaft  Suits 20 inch cut models only. Shaft, keyways and threads are in excellent condition. NO LONGER AVAILABLE SB4597 Used Cutter Sprocket  Suits 240V electric Model 45 models only. Outer sprocket has 13 teeth (suits 415 type chain). Inner sprocket has 19 teeth (suits 06B type chain). 1 in stock
Used Cutter Sprocket  Suits 14", 17" and later model 20" Model 45 mowers only. NOT compatible with early 20" models that use RMS5 size bearings. Only suitable for models that use RLS5 size bearings. Bore, keyway and teeth in very good condition.
NO LONGER AVAIALABLE SB4516b
Used Front Roller Height Adjustment Knob and Shaft
Includes spring, nut, retaining clip and washer.
NO LONGER AVAILABLE SB4513C
Used Front Roller Height Adjustment Knob and Shaft
Includes spring, washer, retaining clip and nut.
NO LONGER AVAILABLE SB4513
Used Front Roller Height Adjustment Rod
NO LONGER AVAILABLE SB4587
Used Front Roller Height Adjustment Knob Spring and Washer
NO LONGER AVAILABLE SB4593
Used Front Roller Height Adjustment Knob 
Brass type. Includes plastic cap
NO LONGER AVAILABLE SB4592
Used Front Roller Height Adjustment Knob
Aluminium type.
NO LONGER AVAILABLE SB4588
Used Clutch Cable Lower Bracket
Includes nuts and washers.
NO LONGER AVAILABLE SB454
Used Side Cover Mounting Bracket (rear)  Suits early model 14", 17" and 20" Model 45 mowers only. Includes nut and washer. NO LONGER AVAILABLE SB4532
Used Cutter Chain Adjuster Bracket 
Suits early model three piece chassis 14", 17" and 20" Model 45 mowers only. Includes nut and washer and side cover mounting bracket.
NO LONGER AVAILABLE SB4563
Used Cutter Chain Adjuster
Suits early model three piece chassis 14", 17" and 20" Model 45 mowers only.
Includes nut and washer.
NO LONGER AVAILABLE SB4534 Used Electric Motor Mounting Adaptor Plate
Aluminium.
1 in stock
Used Clutch Operating Lever Bracket and Spacer
Includes 3 x screws and nuts and spring.
NO LONGER AVAILABLE SB453A
Used Clutch Operating Lever Assembly Suit early model three piece chassis 14", 17" and 20" Model 45 mowers only.NO LONGER AVAILABLE SB453
Used Clutch Operating Lever  Suitable for all Model 45 (excluding late model Rover 45). Includes washer and split pin. NO LONGER AVAILABLE SB4553 Used Clutch Fork 
Used R/H Cutter Bearing Holder Assembly Suits 14", 17" and some 20" inch models only that use RLS5 size cylinder bearings (RMS5). Includes adjuster screw and bolt, rear bolt, washers and nuts. For use with RLS5 size bearings only (not compatible with RMS5 bearings). Very good condition.3 in stock
Used L/H Cutter Bearing Holder Assembly Suits 14", 17" and some 20" inch models only that use RLS5 size cylinder bearings (RMS5). Includes adjuster screw and bolt, rear bolt, washers and nuts. For use with RLS5 size bearings only (not compatible with RMS5 bearings). Very good condition.3 in stock
Used R/H Cutter Bearing Holder Assembly  Suits early 20 inch models only that use the larger cylinder bearing (RMS5). Includes front and rear bolts, adjuster screw, locknut, washers and nuts. For use with RMS5 size bearings only (not compatible with RLS5 bearings). Very good condition. NO LONGER AVAILABLE SB4599
Used L/H Cutter Bearing Holder Assembly (sprocket side)  Suits early 20 inch models only that use the larger cylinder bearing (RMS5). Includes front and rear bolts, adjuster screw, locknut, washers and nuts. For use with RMS5 size bearings only (not compatible with RLS5 bearings). Very good condition. NO LONGER AVAILABLE SB4598
Used Rear Roller Sprocket
1 in stock
Used Drive Clutch Outer Plate / Outer Sprocket
Includes bearing and sleeve.
NO LONGER AVAILABLE SB45111
Used Drive Clutch Inner Plate / Inner Sprocket
Includes bearing and cork liner (fitted).
NO LONGER AVAILABLE SB45110
Used Drive Clutch Assembly / Intermediate Sprocket Assembly
Includes clutch arm / lever and screw. New clutch liner fitted. Bearings, centre shaft and roll pin in good condition.
NO LONGER AVAILABLE SB45112
Used Drive Clutch Assembly / Intermediate Sprocket Assembly .
Includes clutch arm / lever. New cork liner fitted.
NO LONGER AVAILABLE SB459Used Drive Clutch Actuating Lever / Arm
NO LONGER AVAILABLE SB4564
Used Clutch Outer Cone (option 1)
Cast Aluminium. No clutch liner fitted, but can be purchased separately (Product Code CHD555)
1 in stock
Used Clutch Outer Cone (option 2) Cast Aluminium type. No clutch liner fitted. Includes 3 x screws and nuts.
1 in stock
Used Clutch Outer Cone (option 3)
Solid Cast Iron. Has new cork clutch liner fitted. Includes 3 x screws and nuts.
NO LONGER AVAILABLE SB4562
Used Clutch Inner Cone
Bore and keyway in very good condition.
NO LONGER AVAILABLE SB4521
Used Cast Iron Clutch Housing
Original cast iron clutch housing to suit 5/8" diametre engine shafts. Keyway and bore in excellent condition. Includes cotter pin & nut. No thrust bearing fitted, but new replacement bearings are available here.
NO LONGER AVAILABLE SB4525
Used Clutch Body Assembly
Cast Aluminium type. Suits 5/8" diametre crankshafts. Includes cotter pin, nut and washer. Thrust bearing not included. Keyway and bore in excellent condition.
NO LONGER AVAILABLE SB4573
Used Front Roller Frame
Suits 14" models only.
1 in stock
Used Front Roller, Frame and Shaft 
Suits 17" cut models only. Includes Nylon end caps (fitted) and shaft. End caps, shaft and pivots in very good condition.
NO LONGER AVAILABLE SB4594
Used Front Roller Tube ONLY
Suits 14" cut models only. Has surface rust but is in straight condition with no dents. For new replacement plastic end caps (Product CHD18332), please click here.NO LONGER AVAILABLE SB45107
Used Front Roller Tube ONLY
Suits 17" cut models only. Has surface rust but is in straight condition with no dents. For new replacement plastic end caps (Product CHD18332), please click here.
4 in stock
Used Front Roller Tube ONLY
Suits 20" cut models only. Has surface rust but is in straight condition with no dents. For new replacement plastic end caps (Product CHD18332), please click here. Special freight required - please contact us with your postcode for a quote.
1 in stock
Product SB45102
Front Roller Tube suit 20 inch
Price AUD $25.00
Used Front Roller Frame (external thread type)
Suits 17 inch cut models only. Includes 2 x nyloc nuts and washers.
NO LONGER AVAILABLE SB4590
Used Front Roller Frame (internal thread type)
Suits 17 inch cut models only. Includes 1/4" UNF screws and washers.
1 in stock
Used Grass Deflector suit 20 inch cut Fair cosmetic condition - may require refinishing/painting if desired. Structurally in good used condition. Special freight required - please contact us with your postcode for a quote.
NO LONGER AVAILABLE
Product SB45101Grass Deflector suit 20 inch
Price AUD $30.00Used Grass Deflector suit 17 inch cut
Very good condition. Structurally in good straight condition.
NO LONGER AVAILABLE SB4581d
Used Grass Deflector suit 14 inch cut
Has flaking paint and surface rust, but structurally in good condition.
NO LONGER AVAILABLE SB4574
Used Grass Deflector Clamp
NO LONGER AVAILABLE SB4528
Used Grass Deflector Clamp
NO LONGER AVAILABLE SB4552
Used Chain Cover / Side Cover
Suits Scott Bonnar 45's with top/bottom position screw holes. Has some scrapes, surface rust and damage to paint surface as shown. May require preparation and refinishing if desired. Bottom edge is in good condition. Structurally in good, straight condition overall.
NO LONGER AVAILABLE SB4548m
Used Handle Bar Cover Plate (option 2)
May require paint work / refinishing if desired, but physically in good straight condition.
NO LONGER AVAILABLE SB4546l
Used Handle Bar Pivot Bolt
Includes 2 x nuts.
1 in stock
Used Handle Bar Extension Plate (1 set)
For displacing lower bar further aft to allow bars to be adjusted higher. Commonly used on early handle bar design when replacing a Kirby engine with a Briggs and Stratton engine.
NO LONGER AVAILABLE SB4550
Used Lower Handle Bar Stub
Suits Model 45 'Lawn King' models which were fitted with parallel handle bars. Bar stub measures 498mm in length overall. Chrome finish is peeling so may require preparation and re-painting if desired, but structurally in very good condition.
NO LONGER AVAILABLE SB4566
Used Lower Handle Bar Suits early model 17" models that used Briggs and Stratton 2HP and 2.5HP engines or Kirby HK25 engines. Special freight required - please contact us with your postcode for a quote. Collection also available.
NO LONGER AVAILABLE
Product SB4517LHB
SB45 Lower Handle Bar
Used Handle Bar Assembly
Suits 14 inch Model 45 only. Handle bars are strong and in very good structural condition, however chrome finish is peeling and rust is present. May require preparation/ refinishing/painting if desired. Original handle bar grips included. No clutch lever included. Special freight required - please contact us with your postcode for a quote. Collection also available.
NO LONGER AVAILABLE
Product SB4595SB45 14 inch Handle Bar
Used Throttle Cable and Control
Suits Rover 45's and Scott Bonnar 45's that are fitted with Briggs and Stratton engines. Overall length of cable from housing to 'Z' bend 710mm.
NO LONGER AVAILABLE SB45108
Used Throttle Cable and Control
Includes throttle return spring and metal spring tab. For use with Kirby HK25 and HK30 engines.
NO LONGER AVAILABLE SB45100
Used Throttle Cable
Very good used condition. Suits only the chrome type throttle lever (as pictured below). Ball nipple on the lever end. Small cylinder nipple and split pin on the engine end. Inner cable measures 810mm overall. Outer cable measures 762mm.
2 in stock
Used Chrome Throttle Lever Suits Scott Bonnar cylinder mowers with pull/spring return type throttle cables.
5 in stock
Used Rear Roller Counterweight
Mounts inside a rear roller segment. Includes 2 x self tapping screws.
NO LONGER AVAILABLE SB4576
Used Rear Roller Drive Plates
Includes centre drive pawl holder & set screw, 6 x drive pawls and 6 x 1/4" self tapping screws. Suitable for use on 7/8" diametre rear roller shafts. Brass bushes are in very good condition.
NO LONGER AVAILABLE SB4576a
Used Rear Roller Drive Pawl Holder
Includes set screw. Suits 7/8" diametre shaft.
NO LONGER AVAILABLE SB4571
Used Rear Roller Bearing Carriers (left hand and right hand)
No bearings included, but bearings can be ordered in by Special Order. Please contact us to order.
NO LONGER AVAILABLE SB4561
Used Rear Roller Collar
Includes set screw & lock nut. Suits 7/8" diametre shafts.
2 in stock
Used Rear Roller Assembly
Suits 20 inch cut models only. Very good used condition. Includes bearings, bearing holders, sprocket, internal weight, nuts, bolts and washers. Has been dismantled, cleaned, inspected, greased and re-assembled. Special freight required - please contact us with your postcode for a quote.
NO LONGER AVAILABLE
Product SB4520RR
Rear Roller Assembly suit 20 inch
Used Rear Roller Assembly
Suits 14 inch cut models only. Cast Aluminium type. Very good used condition. Includes bearings, bearing holders and 6 x nuts & washers. Has been dismantled, cleaned, inspected, greased and re-assembled. No slop between inner bushes and shaft. Special freight required - please contact us with your postcode for a quote.
1 in stock
Price AUD $220
Product SB4514ARR
Rear Roller Assembly suit 14 inch
Used Rear Roller Assembly (option 1)
Suits 17 inch cut models only. Very good used condition. Includes bearings, bearing holders, nuts, bolts and washers. Has been dismantled, cleaned, inspected, greased and re-assembled. Minimal slop between shaft and brass sleeves/bushes. Special freight required - please contact us with your postcode for a quote.
1 in stock
Price AUD $220
Product SB4517RR
Rear Roller Assembly suit 17 inch Model 45
Used Rear Roller Assembly (option 2)
Suits 17 inch cut models only. Very good used condition. Includes sprocket, bearings, bearing holders, nuts, bolts and washers. Has been dismantled, cleaned, inspected, greased and re-assembled. No slop between shaft and brass sleeves/bushes. Special freight required - please contact us with your postcode for a quote.
NO LONGER AVAILABLE
Product R4517RR
Rear Roller Assembly suit 17 inch Model 45
Used Chassis
Rover / Scott Bonnar 45 17 inch chassis. Will require repairs, as front and rear engine mounting areas are cracked (see photos). All holes, slots, catcher hook pegs and support pegs are in good condition. May require sandblasting / refinishing if desired, but paintwork is is good condition. Special freight required - please contact us with your postcode for a quote. Local collection also available.
NO LONGER AVAILABLE
Product code R45CH
Chassis suit 17 inch Rover and SB45
Used Chassis
Scott Bonnar 45 17 inch chassis. Cracks detected around engine mounting holes so welding repairs will be required. All holes, slots, catcher hook pegs and support pegs are in good condition. May require sandblasting / refinishing if desired. Special freight required - please contact us with your postcode for a quote.
NO LONGER AVAILABLE
Product code SB4517CH
17 inch SB45 Chassis
Used Cutter Cylinder Assembly (six blade)
Suits 14 inch cut Model 45's only. All blades, welds, shafts, threads and keyways are in good condition. Item has surface rust and pitting and will require surface prepaation prior to painting, if desired. Will require sharpening to restore cutting edge. Sharpening is available - please contact us for a quote. Average overall cylinder diameter 145mm. Special freight required - please contact us with your postcode for an accurate postage quote. Local collection also available.
Price AUD $100.00
Product Code SB4514CY
Cylinder Blade fits SB45 14 inch
Used Cutter Cylinder Assembly (eight blade)
Suits early 20 inch cut Model 45's only. All blades, welds, shafts, threads and keyways are in good condition. Item has surface rust and will need surface preparation prior to painting, if desired. Previous weld repairs to blade / rib joint can be seen in the photos. Includes new RMS5-2RS bearings and bearing shields (fitted). Will require sharpening to restore cutting edge. Sharpening is available - please contact us for a quote. Overall cylinder diameter 143mm. Special freight required - please contact us with your postcode for an accurate postage quote. Local collection also available.
1 in stock
Product Code SB4520CYL
Cylinder Blade fits early SB45 20 inch
Price AUD $250.00
Suits 17" cut models only. Has surface rust but is in straight condition with no dents. For new replacement plastic end caps (Product CHD18332), please click here.
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