Parts List Complete for BETCO OPTIMA QT21
 

NON-OEM Dust Bonnet and Cage Option - 178-4041
RefNbr Part Number Description Req Notes
1 991-9014 Kawasaki dust bonnet 1
2a 160-0198 3 tab filter cage with support ring for 17HP (metal) 1 (includes 2b)
2b 160-0297 Filter cage support ring for 17HP (converts 3 tab/4 tab) 1
3 999-0250 Bolt M5-.8 x 10mm hex head full thread 3 (to secure cage to ring)
4 999-0740 Nut M5-.8 hex stainless steel 3 (to secure cage to ring)
5 999-0673 Nut M6-1 acorn zinc plated 4 (to secure ring to engine)
6 999-0123 Washer 1/4 SAE flat zinc plated 7 (to secure cage and ring to engine)
7 160-0123 3 tab filter cage for 18HP (metal) 1

Handle Bar Assembly - 189-1036
RefNbr Part Number Description Req Notes
1 999-0086 Nut 10-32 nylon insert lock zinc plated 2
2 999-0188 Nut 3/8-16 nylon insert lock zinc plated 2
3 189-0382 Washer #10 SAE flat zinc 2
4 189-3091 Screw 1/2 x 1/2 shoulder socket head 2
5 189-3083 Hand grip 2
6 189-3092 Washer 1/2 x 1 1/4 nylon 2
7 189-3082 38 inch throttle cable 1
8 189-3093 Screw 10-32 x 1 hex head zinc 2
9 189-3094 Nylon spacer 2
10 189-3095 Retaining pin with ring 2
11 189-3096 Handle bar weldment 1

Lower Handle Assembly - 189-1037
RefNbr Part Number Description Req Notes
1 999-0086 Nut 10-32 nylon insert lock zinc plated 4
2 189-5162 Felt (sold by the foot) 2 in
3 999-1032 Screw 1/4-20 x 5/8 hex head stainless steel 1
4 204-0122 Tank pad 1
5 999-0188 Nut 3/8-16 nylon insert lock zinc plated 4
6 189-8264 Tube clip .75 1
7 189-3085 Tank strap latch 1
8 204-0077 Washer flat 4
9 999-0423 Nut 5/16-18 nylon insert lock stainless steel 10
10 999-0424 Bolt 5/16-18 x 1 hex head stainless steel 4
11 999-0556 Bolt 5/16-18 x 3/4 hex head stainless steel 6
12 999-0039 Bolt 3/8-16 x 1 1/4 hex head grade 5 zinc plated 4
13 189-3086 Hour meter 1
14 189-3084 Tank strap 1
15 189-3093 Screw 10-32 x 1 hex head zinc 8
16 189-0386 Battery cover 1
17 189-3107 Propane tank shelf 1
18 189-0387 Left hand lower handle leg 1
19 189-0388 Right hand lower handle leg 1
20 189-0389 Front propane tank strap 1
21 189-5162 Felt (sold by the foot) 13 in

Regulator Assembly - 189-1038
RefNbr Part Number Description Req Notes
1 189-0390 90 degree elbow fitting 1
2a 991-6002 12V fuel lock off (Model 152) 1
2b 189-5642 12V fuel lock off 1
3 999-1032 Screw 1/4-20 x 5/8 hex head stainless steel 2
4 189-6194 Fuel regulator (Model 60E) 1
5 991-6004 Female quick coupler 1
6 189-0392 Screw #10 x 5/8 pan head phillips 1
7 189-8264 Tube clip .75 1
8 991-6007 Propane fuel hose 1
9 189-0393 Fitting 3/8 MNPT x 1/2 barb 1
10 189-0394 Fuel hose 1
11 189-0395 Vacuum hose (Sold by foot) 1
12 189-0396 Fitting 1/4-28 brass 1

Key Switch Box Assembly - 189-1039
RefNbr Part Number Description Req Notes
1 189-0397 Wire clamp 1
2 169-0016 Key switch assembly with two keys 1
3 189-0699 Decal 1
4 189-9275 Key (pkg of 2) 1
5 189-0701 Key switch box 1
6 189-3093 Screw 10-32 x 1 hex head zinc 4

Deck Assembly - 189-1041
RefNbr Part Number Description Req Notes
1 999-0830 Screw 1/4-20 x 1 hex head plain finish 2
2 999-0278 Nut 5/16-18 nylon insert lock jam zinc plated 2
3 189-0391 Rivet 4
4 189-5162 Felt (sold by the foot) .5 ft x 2
5a 189-8231 Bumper guard (red) (sold by the foot) (OBSOLETE) 5ft
5b 189-8231 Bumper guard (red) (sold by the foot) (OBSOLETE) 6ft
5c 189-8231 Bumper guard (red) (sold by the foot) (OBSOLETE) 7ft
6 999-1683 Bolt 5/16-18 x 2 1/2 hex hd grade 8 2
7a 189-8202 Duracoat deck 21 inch 1
7b 189-8530 Duracoat deck 24 inch 1
7c 189-8531 Duracoat deck 28 inch 1
8 204-0120 12V solenoid 1
9 999-0118 Nut 1/2-13 nylon insert lock zinc plated 1
10 189-8242 3/8 hammer rivet 1 (supplied with machine, after removing XXX-XXXX insert into the hole, use a hammer to seat.)
11 189-8019 6 inch wheel 2
12 189-0706 Decal (OBSOLETE) 1
13 999-0028 Washer 5/16 split lock plain finish 4
14 999-0556 Bolt 5/16-18 x 3/4 hex head stainless steel 4
15 999-0152 Nut 1/4-20 nylon insert lock zinc plated 2
16 189-7537 Rear caster wheel 1
17 189-8534 Adjustable wheel bracket 2
18 189-7555 Wiring harness 1
19 162-0007 12V 12Ah sealed battery 1
N/S 189-0383 Bolt 1/4-20 x 5/8 hex head zinc 1
N/S 189-0702 Dust skirt 28 inch 1
N/S 189-0705 Dust skirt 21 inch 1
N/S 189-0704 6 gauge wire (black) 1
N/S 189-8047 Battery cable (red) 2
N/S 189-0703 Screw 5/16-18 x 3 1/4 with nut 1

Belt Deck Assembly - 189-1042
RefNbr Part Number Description Req Notes
1 999-0397 Bolt 7/16-14 x 1 1/4 hex head grade 5 zinc plated 4
2 999-0044 Washer 7/16 medium split lock 4
3 999-0120 Washer 3/8 SAE flat 1
4a 991-0036 BX41 Belt 1 (used with 21 inch deck) (for 21 inch deck)
4b 154-1070 BX49 belt 1 (used with 24 inch deck)
4c 991-0009 BX51 belt 1 (used with 28 inch deck)
5a 189-8071 7.5 inch pulley 1 (used with 21 inch deck)
5b 189-0794 Pulley 1 (used with 24 inch deck)
5c 189-8567 10 inch pulley 1 (used with 28 inch deck)
6 204-0017 Small belt tensioner 1
7 999-0394 Bolt 1/4-20 x 1 3/4 hex head grade 5 zinc plated 3
8 999-0630 Washer 3/4 SAE flat 1
9 189-8554 Key 1/4 x 1/4 1
10 189-8066 Bushing 1
11 999-0328 Washer 7/16 USS flat 4
12 204-0019 Key Stock 1
13 189-3088 Engine pulley 1
14 189-0795 Bushing 1
15 204-0015 Pad driver (OBSOLETE) 1
17 999-0034 Washer 3/8 split lock plain finish 1
18 999-1049 Washer 1/4 split lock zinc plated 5
19 999-0039 Bolt 3/8-16 x 1 1/4 hex head grade 5 zinc plated 1
20 189-5118 Spring washer 1/2 inch 4 (for 24 inch and 28 inch decks, place 4 springs between 999-0328 and aluminum deck at this bolt location)
21 189-5118 Spring washer 1/2 inch 4 (for 21 inch deck, place 4 springs between 999-0328 and aluminum deck at this bolt location)

Pad Driver Assembly - 189-1043
RefNbr Part Number Description Req Notes
2 999-0829 Screw 5/16-18 x 1 1/4 hex head plain finish 6
3a 189-8997 Pad driver flex 21 inch 1
3b 189-8110 Pad driver flex 24 inch 1
3c 189-9017 Pad driver flex 27 inch 1
4 189-9011 Shaft plate 3/4 inch 1
5 189-0798 Blind rivet 3 .
6 999-0549 Washer 5/16 x 3/4 SAE flat stainless steel 6
7 991-2201 Center-Lok II pad holder - right hand thread (black) 2
8 999-0423 Nut 5/16-18 nylon insert lock stainless steel 6
9 999-0028 Washer 5/16 split lock plain finish 6
10a 189-8073 21 inch pad driver assembly flex without pad 1
10b 204-0026 Pad Driver (OBSOLETE) 1
10c 189-8297 27 inch pad driver assembly flex 1

Centrifugal Clutch Assembly - 189-1044
RefNbr Part Number Description Req Notes
1 999-0044 Washer 7/16 medium split lock 1
2 189-8553 Bolt 7/16-20 x 1 3/4 hex head 1
3 189-8554 Key 1/4 x 1/4 1 (instll key after pushing clutch onto the engine drive shft and aligning keyways)
4 999-0328 Washer 7/16 USS flat 1 (tighten onto the lip of the clutch)
5 189-8555 Centrifugal clutch 1 (remove and discard set screws from clutch before installing)
6 999-0328 Washer 7/16 USS flat 1
7 189-0799 Clutch top spacer 1 (installed to align the belt drive section of the clutch to the pad driver pulley belt drive section)
8 189-0800 Clutch bottom spacer 1 (should be just inside the lip of the drive shaft hole)

Electrical Diagram - 189-1045
RefNbr Part Number Description Req Notes
1 189-8542 Oil pressure switch with 2 prongs 1
2 169-0016 Key switch assembly with two keys 1
3 189-5642 12V fuel lock off 1
4 178-0265 Voltage regulator 1
5 189-0801 14 gauge wire (black) 3
6 162-0007 12V 12Ah sealed battery 1
7 204-0120 12V solenoid 1
8 189-3086 Hour meter 1
9 189-0704 6 gauge wire (black) 1
10 178-7106 Electric starter 1
11 189-8047 Battery cable (red) 2

Electrical Diagram - Emissions - 189-1046
RefNbr Part Number Description Req Notes
1 189-8542 Oil pressure switch with 2 prongs 1
2 169-0016 Key switch assembly with two keys 1
3 991-6002 12V fuel lock off (Model 152) 1
4 178-0265 Voltage regulator 1
5 189-0801 14 gauge wire (black) 2
6 162-0007 12V 12Ah sealed battery 1
7 204-0120 12V solenoid 1
8 189-3086 Hour meter 1
9 189-0704 6 gauge wire (black) 1
10 178-7106 Electric starter 1
11 189-8047 Battery cable (red) 2
12 189-8544 Emissions shutdown module with oxygen sensor 1
13 189-8544 Emissions shutdown module with oxygen sensor 1

-Engine- Kawasaki FS481V - 189-6100
RefNbr Part Number Description Req Notes
001 178-0329 Bolt 12 x 30 1
002 178-0135 Washer 1 (DS10 only)
003 178-0137 Woodruff key 1
004 178-7107 Flywheel assembly 1
005 189-5152 Propane emission decal 1
006 189-0392 Screw #10 x 5/8 pan head phillips 2
007a 189-8544 Emissions shutdown module with oxygen sensor 1 (Betco)
007b 154-1042 SafeSense emission monitoring module retro kit 1 (Pioneer)
008a 189-3090 Oil dipstick 1 (Plastic oil dipsticks are only good for a short time because the last couple inches of the dipstick are always in oil and will eventually stain, get brittle, and then break off inside the engine due to the high heat of the oil. The pieces of plastic can cause problems inside the engine and the only way to get them out is to remove the crankcase, which is very labor intensive.)
008b 154-0367 Kawasaki dipstick 1
009a 178-0306 Dipstick tube 1
009b 178-0016 O-ring 2
010 178-0265 Voltage regulator 1
011 178-0330 Wire lead 1
012 178-0331 Screw 2
013 178-0123 Flanged bolt 4
014 178-7106 Electric starter 1
015a 178-0264 Ignition coil assembly Kawasaki FS481V 2
015b 991-7143 Ignition coil assembly 2 (NON-OEM)
016a 166-0008 Spark plug (Kawasaki FS481V) 2
016b 178-7104 Spark plug wiring harness 1
017 178-0280 Intake manifold 1
018a 178-0255 Air pre-filter 1 (OEM)
018b 991-6028 Air pre-filter 1 (NON-OEM)
019a 178-0256 Air filter 1 (Betco) (OEM)
019b 991-6029 Air filter 1 (NON-OEM)
019c 178-0256 Air filter 1 (Kawasaki)
019d 178-7207 Air filter assembly with prefilter 1 (Kawasaki)
020 178-0281 Hose clamp 1
021 178-0282 Hose 1
022 178-0279 Air filter case 1
023 178-0278 O-ring 2
024 178-0277 Thumb nut 2
025 178-0283 Hose clamp 1
026a 178-0290 Carburetor assembly 1 (Pioneer, Nilfisk, Kawasaki)
026b 189-5148 Carburetor aluminum block (keep internal parts of old carb) 1 (Betco)
027 178-0284 Stud bolt 2
028 178-0332 Plug 1
029 178-0333 Clamp 1
030 178-0195 Flanged nut 2
031 178-0334 Intake pipe 1
032 178-0042 Carb intake gasket 2
033 178-0257 Gasket 2
034 178-0036 Exhaust stud bolt 4
035 178-0335 Bolt 6 x 12 7
036 178-7108 Breather cover 1
037 178-0263 Breather gasket 1
038 189-8452 J clip stamped hook 1
039 178-7109 Breather pipe 1
040 178-0151 Screw pan head 1
041 178-7110 Breather plate 1
042 178-7111 Breather valve 1
043 178-0043 Top oil seal (upper crankshaft - Kawasaki) 1
044a 178-0113 Plug 1
044b 178-0010 Oil drain adapter 1
044c 178-0016 O-ring 2
045a 178-0254 Oil filter 1 (OEM)
045b 991-6027 Oil filter 1 (NON-OEM)
046 154-0143 Oil pressure switch with 2 prongs 1
047 178-0206 Clamp 1
048 178-7012 Plug 1
049 178-0336 Crankcase complete 1 (includes 50)
050 178-0337 Joint 1
051 178-0302 O-ring 1
052 178-0338 Pipe 3
053 178-0273 Dowell pin 6
054 178-0261 Cylinder head gasket (FS481V engine only) 2
055a 178-0304 #1 right cylinder head assembly (FS481V) 1 (Includes (1) rocker cover gasket, (2) valve springs, (1) intake valve, (1) exhaust valve, (1) cylinder head gasket, (1) intake gasket, (1) exhaust gasket, (2) exhaust studs)
055b 178-0258 Right (while operating) bare cylinder head #1 1
055c 178-0305 #2 left cylinder head assembly (FS481V) 1 (Includes (1) rocker cover gasket, (2) valve springs, (1) intake valve, (1) exhaust valve, (1) cylinder head gasket, (1) intake gasket, (1) exhaust gasket, (2) exhaust studs)
055d 178-0259 Left (while operating) bare cylinder head #2 1
056 178-0272 Head bolt 14
058 178-0339 Lift hook 1
059 178-0032 Valve stem seal 4
060 178-0124 Bolt 6 x 25 flange 10
061a 178-7112 Rocker case (cylinder #2) 1
061b 178-7113 Rocker case (cylinder #1) 1
062 178-0262 Rocker case gasket 2
064 178-0272 Head bolt 14
065 178-0036 Exhaust stud bolt 4
066 178-0271 Head bolt 6
067 999-1489 Screw 3/8-16 x 1 1/2 hex head stainless steel 4
068 999-0034 Washer 3/8 split lock plain finish 4
069 178-0260 Bottom oil seal 1
071 178-0236 Plug 2
073 178-0340 Plug 1
074 178-0084 Oil seal 1
075 178-0322 Crankcase cover 1
076 178-0338 Pipe 3
077 178-0273 Dowell pin 6
078 204-0071 Bolt 1
079 999-0120 Washer 3/8 SAE flat 1
080 189-8544 Emissions shutdown module with oxygen sensor 1 (Betco)
081 189-5147 Nut 1
082a 169-0142 Muffler plug 1 (Pioneer)
082b 991-1601 Oxygen sensor 1 wire (OBSOLETE) 1
083a 189-3087 Catalytic muffler and manifold assembly 1 (Betco)
083b 154-1044 Catalytic muffler and manifold assembly (Kawasaki FS481V) 1 (Pioneer)
084 178-0286 Fan housing kit 1
090 178-7133 Bolt 4
091 178-0386 Washer 4
092 178-0098 Collet (valve keeper) (sold individually - need 2 per valve) 8
093 178-0048 Valve retainer ring 4
094 178-0276 Valve spring 4
095 178-0270 Intake valve 2
096 178-0045 Lifter 4
097 178-0268 Push rod 4
098 178-0269 Exhaust valve 2
099 178-7134 Nut 4
100 178-0353 Bracket 4
101 178-0384 Bolt 8 x 14 flange 4
102 178-7132 Collar 4
103 178-0383 Rocker arm 4
KIT 050-0007 Kawasaki FS481V 100 hour kit 1 (includes oil filter, pre-air filter, air filter and spark plug)
N/S 189-8544 Emissions shutdown module with oxygen sensor 1
N/S 991-1810 Compression tester 1
N/S 991-1832 Emission tester 1
N/S 178-0274 Throttle control plate 1
N/S 178-0313 Charging coil (stator) 1
N/S 178-0275 Spring 1
N/S 178-0316 Fan 1
N/S 991-4039 Spark plug tester 1

- Kawasaki - Muffler - Dust Bonnet - Emission System - 204-1018
RefNbr Part Number Description Req Notes
001 204-0162 Dust bonnet
002 189-8539 Filter cage
003 189-8540 Edge trim
004 189-8544 Emissions shutdown module with oxygen sensor
005 N/A Not available Manifold
006 N/A Not available Muffler clamp
007 204-0253 Muffler with manifold (OBSOLETE)
008 189-8544 Emissions shutdown module with oxygen sensor

- Pads - 255-2100
RefNbr Part Number Description Req Notes
01 255-2140 21 inch aqua plus burnishing pad (pkg of 5)
02 255-2135 21 inch Armadillo concrete scrubbing pad (pkg of 5)
03 255-2164 21 inch Blue ace pad (pkg of 5)
04 255-2142 21 inch Blue Jay burnishing pad (pkg of 5)
05 255-2112 21 inch Cure white pad (pkg of 5) (OBSOLETE)
06 255-2177 21 inch Diamondback extreme stripping pad (pkg of 5)
07 255-2138 21 inch EHD Extra Heavy Duty Concrete Leveling Pad (pkg of 2
08 255-2121 21 inch gorilla lite burnishing pad (pkg of 5)
09 255-2150 21 inch gorilla spray buff/polish/burnish pad (pkg of 5)
10 255-2165 21 inch Heat concrete bonding pad (pkg of 5)
11 255-2130 21 inch jaguar burnishing pad (pkg of 5)
12 255-2167 21 inch Laminated 2001 Gorilla polish pad (pkg of 5)
13 255-2190 21 inch premium black stripping pad (pkg of 5)
14 255-2170 21 inch premium blue cleaning pad (pkg of 5)
15 255-2192 21 inch premium brown stripping pad (pkg of 5)
16 255-2180 21 inch premium green scrubbing pad (pkg of 5)
17 255-2160 21 inch premium red scrubbing pad (pkg of 5)
18 255-2152 21 inch premium tan polishing pad (pkg of 5)
19 255-2120 21 inch premium white polishing pad (pkg of 5)
20 255-2111 21 inch superspeed rubberized pad (pkg of 5)
21 255-2195 21 inch razorback stripping pad (pkg of 5)
22 255-2147 21 inch Redwood maroon floor prep pad (pkg of 10)
23 255-2155 21 inch Ruff non-abrasive brush pad (pkg of 2)
25 255-0164 21 inch Professional sand screen 120 grit (pkg of 10)
26 255-0165 21 inch Professional sand screen 180 grit (pkg of 10)
27 255-0162 21 inch Professional sand screen 60 grit (pkg of 10)
28 255-0256 21 inch Superscreen sand screen 100 grit (pkg of 10)
29 255-0257 21 inch Superscreen sand screen 120 grit (pkg of 10)
30 255-0258 21 inch Superscreen sand screen 180 grit (pkg of 10)
31 255-0255 21 inch Superscreen sand screen 60 grit (pkg of 10)
32 255-2124 21 inch Tiger carpet bonnet (pkg of 2)
33 255-9598 21 inch Diamond by Gorilla 11000 Grit (pkg of 2)
34 255-9595 21 inch Diamond by Gorilla 1500 Grit (pkg of 2)
35 255-9592 21 inch Diamond by Gorilla 200 Grit (pkg of 2)
36 255-9596 21 inch Diamond by Gorilla 3000 Grit (pkg of 2)
37 255-9593 21 inch Diamond by Gorilla 400 Grit (pkg of 2)
38 255-9594 21 inch Diamond by Gorilla 800 Grit (pkg of 2)
39 255-9597 21 inch Diamond by Gorilla 8000 Grit (pkg of 2)
40 255-9646 21 inch Diamond starter pack (1 of each grit)
41 255-2115 21 inch Duala clean and shine pad - low speed (pkg of 5)
42 255-2116 21 inch 2001 Duala clean and shine pad - high speed (pkg 5)

- Pad Holders - 275-9029
RefNbr Part Number Description Req Notes
1 991-2214 Center-Lok II pad holder - left hand thread (red)
2a 991-2201 Center-Lok II pad holder - right hand thread (black) (Pad driver side female, Floor side male)
2b 991-8577 Pad retainer (Pad driver side male, Floor side female)
3a 991-2202 Big mouth pad holder set (blue) (includes 3 screws)
3b 991-2205 Deep lock ring and pad grip ring
4 991-2203 Big mouth pad holder male thread portion
5 991-2206 Center-Lok 3 pad holder (includes 3 screws)
6 996-0372 Big mouth pad holder (left hand thread)
7 N/A Not available
8 991-2209 Split retainer - pad holder ring (OBSOLETE)
9 N/A Not available (replaced by #3 991-2202)
10 991-2211 Center lock pad holding cup (male) (yellow) (OBSOLETE)
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