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Hydrostatic Zero-Turn
Riding Mower
MODEL
23HP
53AB5BBP750
50" Stamped Deck
ILLUSTRATED PARTS LIST
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TABLE OF CONTENTS 50" Formed Cutter Deck . . . . . . . . . . . . . . . . . . . . . . . 4 and 5 Hydro Pump Assembly . . . . . . . . . . . . . . . . . . . . . . . . 6 and 7 Brake Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 and 9 Fuel Tank Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Rear Bumper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Front Caster Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
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50" Formed Cutter Deck - Figure 1 5 51 37 37 48 3 9 55 47 18 59 31 59 61 33 53 46 36 34 62 24 27 22 33 50 38 13 29 21 6 58 15 28 11 35 64 6 62 14 1 19 4 17 10 19 65 6 32 67 49 68 44 39 30 19 56 57 66 25 54 2 20 43 6 6 60 12 14 17 69 63 16 12 70 40 7 6 41 8 6 62 52 26 23 12 42 45 GD: 02000420-12/14/04 4
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50" Formed Cutter Deck - Parts List for Figure 1 Ref. Ref. No. Part No. Description Qty. No. Part No. Description Qty. 1 00003107 Cotter Pin, .125 Dia x 1.0 2 36 01008593 Idler Arm Assembly 1 2 00008495 Capscrew, 3/8-16 x 1-3/4 1 37 01008620 Self Tapping Screw 5/16-18 x .750 6 3 00012226 Grease Fitting, 1/4-28, 90° 1 38 00012428 Hex Nut, 1/2-13, Insert Lock 4 4 00012470 Cable Tie, 3/16 x .05 x 7.4 1 39 01009102 Hinge Pin, .375 x 14.06 1 5 00013406 Hex Cap Screw, 5/16-18 x 3/4 1 40 01009253 Flat
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Hydro Pump Assembly - Figure 2 1 5 3 10 6 7 8 17 19 18 15 9 8 4 16 14 11 13 12 GD: 01004266-03/29/01 6
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Hydro Pump Assembly - Parts List for Figure 2 Ref. No. Part No. Description Qty. 1 00006144 Hex Cap Screw, 3/8-16, 1 4 2 00012529 Protective Hose Cover (not shown) 1 3 00013131 Hex Cap Screw, 1/4-20, .75 2 4 00017665 Filter Head 3/4 includes: 1 01004166 33 Micron Filter 5 00022560 Hex Nut Flange Lock, 3/8-16 8 6 00030261 Cap, Hydro Oil Tank 1 7 00031994 Decal Oil Only 20W50 1 8 01000372 Carriage Bolt, 3/8-16 x .75 LG. 4 9 01004516 Hydraulic Tank Assembly 1 10 01001650 Mounting Plate Oil Filter
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Brake Assembly - Figure 3 25 21 3 3 13 16 12 14 30 19 9 29 15 26 23 11 18 20 7 24 22 10 4 6 17 27 5 1 2 8 28 GD: 01001609-04/21/03 8
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Brake Assembly - Parts List for Figure 3 Ref. No. Part No. Description Qty. 1 00006131 Hex Nut, 3/8-16 4 2 00009678 Clevis Pin, 3/8 x 1, 1/8 2 3 00011888 HHCS, Standard, 3/8-16 x 3-1/2 1 4 00021955 Yoke, 3/8-16, Female 2 5 00021956 Hair Pin, 3/8"-1/2" 2 6 00012226 Grease Fitting, 1/4-28, 90° 1 7 01000100 Shoulder Nut 2 8 00022560 Nut, Flange Lock, 3/8-16 3 9 01000628 Screw, TT, 1/4-20 x .5, Hex Index 4 Washer 10 01000723 Flat Washer, .406 ID x 1.0 OD x .105 4 11 01000872 Flat Washer, .411 x 1.2
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Fuel Tank Assembly - Figure 4 and Parts List 9 8 3 4 10 13 11 11 12 7 2 1 6 5 GD: 01002568-01/18/01 Ref. No. Part No. Description Qty. 1 01000723 Flat Washer, .406 ID, 1.0 OD, .105 8 2 -- Hose, 1/4" Fuel Line (in inches) 79.5 3 00012235 Clamp, Union 6 4 01000069 Fuel Cap, 3.5 2 5 01000368 Hex, Cap Screw, 3/8-16, .88 8 6 00012157 Lock Washer, 3/8 8 7 01004350 Fuel Tank 2 8 01003116 Fuel Fitting 2 9 01000281 Grommet, Fuel Tank 2 10 01003473 Tee Fitting, Fuel 1 11 00031081 Clamp, 1/2 Tubing 1 12
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Rear Bumper - Figure 5 and Parts List 3 5 1 4 6 2 GD: 01007365-04/08/04 Ref. No. Part No. Description Qty. 1 00012428 Hex Nut, 1/2-13, Insert Lock 2 2 00022560 Nut, Hex 3/8-16 Flange Lock 2 3 00030046 HHCS, 1/2-13, 3.00 2 4 01000364 Carriage Bolt, 3/8-16 x 1.75 2 5 01007362 Rear Bumper Bracket 1 6 01009992 Bar Weight 1 11
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Front Caster Assembly - Figure 6 and Parts List 13 1 15 3 12 5 2 14 7 7 6 Washer Order and 11 Orientation 4 13 8 6 Front Plate 17 9 02000588 10 01006294 16 Front Axle 01006294 Frame 02000588 01009997 GD: 02000572-10/21/04 Ref. No. Part No. Description Qty. 1 00006144 Hex Cap Screw, 3/8-16, x 1 2 2 01000872 Flat Washer, .411 x 1.25 x 1.00 2 3 00012157 Lock Washer, 3/8 2 4 00023287 Center Lock Nut, 1/2-20 2 5 00023793 Flange Bearing, 1.013 4 6 02000588 Flat Washer, 1.00 ID x 2.00 OD x .075 2 7 0
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Wheel Assembly - Figure 7 and Parts List 2 1 GD: 01006503-06/09/04 Ref. No. Part No. Description Qty. 1 00012187 Lug Nut, 1/2-20 8 2 01006541 Wheel Assembly, 23 x9.5-12, Dr, 2 White: Includes Tire, Turf Saver, 23 x 9.50-12, 2-Ply Rim, 12 Dia x 7.00 width, 4x4 Bolt 13
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Control Assembly- Figure 8 45 43 31 6 38 41 36 29 37 56 19 52 49 27 14 2 40 11 33 13 58 50 39 11 46 12 7 3 16 44 47 55 1 17 10 51 11 35 42 1 32 53 21 28 30 48 3 18 34 20 25 1 5 10 22 10 4 25 7 12 8 15 46 9 6 23 53 10 24 25 26 GD: 02000569-01/12/05 14
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Control Assembly - Parts List for Figure 8 Ref. Ref. No. Part No. Description Qty No. Part No. Description Qty. . 1 00003107 Cotter Pin .125 Dia x 1.0 6 28 01005770 Side Panel, Control, Right 1 2 00011861 Hex Cap Screw, 3/8-16, 2.5 4 29 01010176 Mounting Handle 2 3 00022560 Hex Nut, 3/8-16, Lock Flange 31 30 01003011 Lever, Safety Switch 2 4 00060078 Grease Fitting, 1/4-28 x 3/16 2 31 01004889 Control Panel, LH 1 5 00013131 Hex Cap Screw, 1/4-20, .75 2 32 01004890 Control Panel, RH 1 6 01000369
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Drive Assembly- Figure 9 and Parts List 29 2 22 11 4 21 7 19 1 23 5 14 3 12 5 20 10 17 8 24 25 27 18 15 26 28 6 27 16 3 9 13 8 GD: 01002578-01/12/05 Ref. Ref. No. Part No. Description Qty. No. Part No. Description Qty. 1 00002528 Hex Cap Screw, 3/8-16 x 2 9 16 01001620 Skid Plate 1 2 00011459 Flat Washer, 1/2 2 17 01002602 Elbow Fitting, 3/8 x 3/8 2 3 00011861 Hex Cap Screw, 3/8-16 x 2.5 1 18 01002606 Fitting, 1/2 x 3x8 1 4 00012157 Lock Washer, 3/8 2 19 01002771 Cotter Pin, .072 x 1.12 Long 2
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Seat Assembly- Figure 10 and Parts List 7 6 3 5 2 1 8 4 GD: 01007314-01/10/05 Ref. No. Part No. Description Qty. 1 00022560 Nut, Hex 3/8-16 Flange Lock 2 2 01000635 Lock Nut, Hex Flange, 5/16-18 4 3 01001630 Mounting Bracket, Seat 2 4 01002634 Shoulder Screw, .50x2.345, 3/8-16 2 5 01002753 Grommet, 2.5 OD x 1.0 Long 2 6 750-3119 Spacer, .406 ID x 1.00 OD x .38 2 7 01006545 Adjustable Seat, Black 1 8 01000960 Flat Washer, .406 ID, 1.00 OD, .105 2 17
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23HP Kohler Engine Assembly - Figure 11 4 16 34 35 36 30 11 7 26 19 8 10 1 17 13 5 32 33 22 37 24 7 25 29 27 2 6 20 3 12 23 18 31 13 28 14 15 21 9 Description Part Number Air Filter KH-24-083-03-S Pre Filter KH-24-083-05-S Fuel Filter KH-24-050-10-S Oil Filter KH-12-050-08 GD: 02000424-01/04/05 Spark Plug 759-3336 Gasket Exhaust (2) -- 18
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23HP Kohler Engine Assembly - Parts List for Figure 11 Ref No Part No. Description Qty. 1 00005763 Hex Nut, 7/16-14 1 2 00006129 HHCS, 5/16-18, 1-3/4 4 3 01007533 Key, 1/4 x 1/4 x 2.75 1 4 00012169 Flat Washer, 5/16 2 5 00014602 Round Hd. Machine Screw, 10-32 x 3/4 2 6 00014608 Lock Nut, Nylon Insert, 10-32 2 7 00022560 Flange Lock, Hex Nut, 3/8-16 2 8 00060056 Nut Washer, W/Star, 8-32 2 9 00060078 Grease Fitting, 1/4-28 x 3/16 1 10 00072586 Flat Washer 1 11 00073094 Engine Spacer 1 12 01000199
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18HP Electrical Engine Assembly - Figure 12 and Parts List 15 1 10 4 5 2 11 7 22 20 23 7 13 19 18 16 6 9 12 14 17 3 GD: 02000573-10/22/04 Ref. Ref. No. Part No. Description Qty. No. Part No. Description Qty. 1 00012032 Battery 1 13 01003649 Strap, Battery 1 2 00012289 Cable, Battery, Red, 36" 1 14 01004040 Grommet, .75 ID 1 3 00012470 Tie, Cable, 3/16 x .05 x 7.4" 5 15 01004078 Cable, Battery Black, 24" 1 4 00013131 Screw, Hex, Cap, 1/4-20 x .75 2 16 01005389 Meter, Hour 1 5 00013258 Boot, 1" O
