Illustrated Parts Manual Model Series 26J Mini Rider MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019 Printed In USA Form No.
To The Owner Thank You Thank you for purchasing this lawn tractor. It was carefully engineered to provide excellent performance when properly operated and maintained. All information in this manual is relative to the most recent product information available at the time of printing. Please be aware that this Illustrated Part’s Manual may cover a range of product specifications for various models. Components listed and/or illustrated in this manual may not be applicable to all models.
Notes 3
Frame & Fender 25 27 12 11 1 9 15 12 26 7 8 10 15 17 12 15 18 24 15 2 22 13 4 5 14 15 21 16 15 15 23 3 4 3 15 20 6 15 19 28 15 4
Frame & Fender Ref. No. Part No. Description 1 710-0924 Machine Screw, 1/4-20, 0.750 2 710-1241 Hex Screw, 1/4-15, 1.000 3 710-3008 Hex Head Screw, 5/16-18, .75 4 710-04484 Tap Screw, 5/16-18, .750 5 712-04063 Flange Locknut, 5/16-18 6 726-0221 Speed Nut 7 712-04092 U-type Speed Nut, 1/4-20 8 731-08633 Column Cover 731-08883 Column Cover (International) 731-08635 Steering Column Cap 731-08882 Steering Column Cap (International) 931-08529 Fender, (MTD Eng.
Drive System 32 17 12 7 26 33 35 37 13 38 37 3 34 8 43 23 22 42 48 46 41 39 16 45 25 47 44 20 28 18 5 36 24 27 9 10 29 21 15 1 19 2 6 6 14 40 31 52 50 4 14 53 6 51 30 11 49
Drive System Ref. No. Part No. Description Ref. No. Part No. Description 1 918-05056 Transmission Assembly 28 738-0930 Shoulder Spacer, .560x.165, 5/16-18 2 647-04262 Shift Handle Assembly 29 747-05593 Shift Rod 3 683-04768 Drive Assembly Idler 30 747-05617A Deck Belt Keeper, 30" 4 736-0242 Beveled Washer, .340 x .872 x .060 31 950-04099 Stepped Spacer, .265 ID X .750 5 710-04484 Tap Screw, 5/16-18, .750 32 750-04456 Spacer, .260 X .372 X 1.
Seat, Fuel Tank & Electrical 35 51 36 7 37 48 37 35 41 50 49 42 40 50 49 38 8 2 43 44 2 39 3 47 5 4 46 22 27 6 1 29 45 17 16 32 19 22 23 11 34 33 20 15 9 28 30 10 13 31 24 24 31 31 24 8 33 22 25 14 26 34 18 12 38 21
Seat, Fuel Tank & Electrical Ref. No. Part No. Description Ref. No. Part No. Description 1 710-0607 Tap Screw, 5/16-18, 0.500 27 925-05013 Seat Switch 2 712-04063 Flange Lock Nut, 5/16-18 28 725-1643 Switch Spring 3 720-04009A Knob, 3/8-16, .875 29 925-1745A Key 4 732-04905 Seat Spring 30 926-0320 Insulator Plate 5 735-0271A Bumper, .62 DIA X .3 31 738-04237A Shoulder Screw, #10-32, .500 6 938-0140 Shldr Spacer, .435 X .178-5/16 X .
Front End Steering 28 18 7 27 3 34 17 15 33 4 10 6 16 5 19 14 21 20 26 8 25 21 12 13 10 23 11 24 30 9 32 10 31 29 8 32 30 12 2 12 1 31 14 21 21 22 29
Front End Steering Ref. No. Part No. Description 1 683-04726 Front Axle Assembly, RH 2 683-04727 Front Axle Assembly, LH 3 683-04761 Upper Tube Assembly 4 683-04762 Lower Tube Assembly 5 710-05046 Allen Wrench, 3/16 6 710-05386 Screw, 1/4-20 X 1.25 7 710-0643 Hex Head Screw, 5/16-18:1.00 8 710-0703 Carriage Screw, 1/4-20, .75 9 711-04448 Ferrule, 5/16-24 X .312 Dia.
Pedal Controls 15 27 8 28 5 24 22 19 20 10 13 18 9 21 2 17 1 14 12 6 16 8 23 11 24 4 7 26 25 10 25 Ref. No. Part No. Description Ref. No. Part No. Description 1 683-04699 Brake Pedal Assembly 15 732-0716D Extension Spring, .59 OD X 4.00 LG 2 910-0224 Screw, #10-16:0.500 16 735-04279 Foot Pad, 2.5" LG. 3 710-0376 Hex Head Scerw, 5/16-18:1.00 17 936-0264 Flat Washer, .330x.630x.064 4 710-04484 Tap Screw, 5/16-18:.750 18 736-3072 Flat Washer, .380X.930X.
Deck Lift 3 11 14 19 6 3 1 13 15 12 18 5 15 11 12 15 17 2 12 16 8 10 4 20 9 7 Ref. No. 1 Part No. 683-04706 Description Ref. No. Part No. Description Lift Assembly Shaft 11 714-04040 Bow-Tie Cotter Pin, 72 714-04043 Bow-Tie Cotter Pin, 91 2 683-04757 Front Hanger Bracket Assembly 12 3 710-04484 Tap Screw, 5/16-18, .750 13 720-0311 Grip Handle, 1/2 4 710-0514 Hex Head Screw, 3/8-16, 1.00 14 732-04692 Extension Spring, .85 OD X 5.
Engine Accessories MTD P90 4 7 8 1 6 2 5 2 2 3 Ref. No. Part No. Description 1 710-04483 Tap Screw, 1/4-20, 0.500 2 710-04683 Tap Screw, 3/8-16, 1.000 3 710-05446 Tap Screw, 3/8-16, 2.250 4 726-0205 Hose Clamp, .490 DIA. 5 731-1682A Oil Drain Sleeve 6 946-04829 Throttle/Choke Cable 31 Lg. 7 751-10349 Low Permeation Fuel Line, 1/4 8 BS-298090S Fuel Filter, 1/4", 298090 NOTE, Tractor features vary by model. NOT all parts listed and pictured above are standard equipment.
Engine Accessories B&S Mod 21 6 1 8 10 9 7 5 11 4 2 2 2 3 Ref. No. Part No. Description 1 710-04483 Tap Screw, 1/4-20, 0.500 2 710-04683 Tap Screw, 3/8-16, 1.000 3 710-05446 Tap Screw, 3/8-16, 2.250 4 710-1652 Tap Screw, 1/4-20, 0.625 5 712-0271 Sems Nut, 1/4-20 6 726-0205 Hose Clamp, .490 DIA. 7 946-04829 Throttle/Choke Cable 31 Lg.
30” Deck 13 1 39 25 33 16 43 42 40 10 22 43 18 36 29 8 42 11 24 19 27 41 3 9 1 11 23 17 21 35 34 10 44 20 4 30 47 7 28 2 45 46 32 31 38 38 10 14 10 6 15 10 5 6 37 4 26 38 12 16
30” Deck Ref. Part Number Description Ref. Part Number Description 1 918-04822A Spindle Pulley Assembly, 6.3 DIA 26 942-04385 Cutting Blade, 30.00" 3-IN-1 2 683-04734 PTO Brake Assembly Bracket 27 750-04456 Spacer, .260 X .372 X 1.420 LG 3 683-04782 Rear Deck Assembly Bracket 28 750-0566A Spacer, .260 x .375 x 1.030 LG 4 710-04484 Tap Screw, 5/16-18, .750 29 954-04318 V-Type Belt, 5L, 45.15 LG 5 710-04998 Carriage Screw, 5/16-18, 1.00 30 756-04224 Flat Idler Pulley, 2.
Wiring Harness Schematic - 925-05359 18
Wiring Harness Schematic - 725-05436 19
4P90JU Air Intake 120 121 122 121 126 124 127 128 127 130 129 Ref.
4P90JU Engine Shroud 192 192 2 3 1 2 4 3 2 4 3 5 4 6 6 7 Ref. Part Number Description 1 751-12205 Debris Shield 2 712-04290 Nut 3 750-05320 Engine Shroud Spacer 4 710-05304 Starter / Shroud Stud M6×100 5 951-11622 Flexible Clamp 6 710-05305 Hook Bolt 7 951-12206 Air Shield 192 710-05303 Self-Tapping Bolt 5.
4P90JU Crankcase 48 49 50 51 197 - Gasket Kit - Complete 52 198 - Gasket Kit - External 53 199 - Complete Engine 47 189 72 183 185 72 73 70 74 186 184 55 183 56 57 54 58 59 62 178 60 68 64 66 65 69 67 22 63
4P90JU Crankcase Ref. Part Number Description Ref. Part Number Description 47 951-11499 Upper Crankshaft Seal 69 750-05530 Component Bracket Spacer 48 710-04916 Bolt M6×14 70 951-12235 Breather Hose Assembly 49 751-12770 Breather Cover Plate 72 951-12236 Breather Hose Clamp 73 751-12200A Short Block Assembly 50 951-12226 Breather Gasket 51 951-12685 Umbrella Valve (Incl.
4P90JU Starter Assembly 9 8 10 11 12 11 12 11 12 24 23 13 24 25 36 34 35 33 35 36 34 15 16 17 31 Description 21 30 Ref.
4P90JU Muffler Assembly 191 191 191 191 48 190 161 161 159 160 158 Ref.
4P90JU Carburetor Assembly 134 133 134 132 137 139 132 136 139 I J K L K H O 131 200 - Carburetor Kit - Major N S P T U V W X Y BB CC DD Z GG HH 26 B C D E Q R G M 138 A F EE FF AA
4P90JU Carburetor Assembly Ref. Part Number Description Ref.
4P90JU Crankshaft & Crankcase Cover 76 75 79 80 77 91 92 83 5 93 90 82 81 98 104 89 88 87 86 84 99 100 86 101 85 112 113 116 117 103 195 114 115 118 119 117 117 28 102
4P90JU Crankshaft & Crankcase Cover Ref. Part Number Description Ref. Part Number Description 5 951-11622 Flexible Clamp 98 951-12248 Oil Pump Assembly 75 951-12238 Crankshaft Assembly 99 951-12247 O-Ring 10×2.65 76 951-11969 Main Bearing 100 951-12249 Filter 77 951-10307 Woodruff Key 101 951-12250 Filter Spring 79 951-12239 Dipstick Assembly 102 951-12251 O-Ring 35.5×2.
4P90JU Cylinder Head 177 197 - Gasket Kit - Complete 198 - Gasket Kit - External 176 199 - Complete Engine 173 175 174 172 154 152 153 157 155 175 174 151 162 151 155 153 146 147 157 148 173 164 149 163 150 193 146 147 148 149 194 171 145 196 164 144 143 163 170 166 167 168 169 142 165 140 142 142 142 140 140 141 140 30
4P90JU Cylinder Head Ref. Part Number Description Ref. Part Number 951-12202 Description Cylinder Head Kit 140 710-05315 Bolt M5×10 141 951-12265 Cowl 142 710-05316 Valve Cover Bolt 166 751-12774 Air Valve Core 143 951-12266 Valve Cover 167 751-12775 Strainer Clip 144 951-12267 Valve Cover Ring Gasket 168 751-12776 Strainer 145 951-11981 Rocker Arm Assembly 169 751-12777 The Air Valve Bonnet 736-04629 Washer (Incl.
4P90JU Ignition & Electrical 40 41 42 43 38 38 38 44 39 45 46 Ref. 32 Part Number Description 38 710-04920 Bolt M6×28 39 951-12220 Ignition Coil Assembly 40 712-04220 Flywheel Nut M16×1.5 41 951-12221 Fan Mounting Plate 42 751-12222A Cooling Fan 43 951-12223 Flywheel 44 951-12224 Coil Assy.
Notes 33
4P90JUA Air Intake 120 121 122 121 126 124 127 128 127 130 129 Ref.
4P90JUA Engine Shroud 192 192 2 3 1 2 4 3 2 4 3 5 4 6 6 7 Ref. Part Number Description 1 751-12205 Debris Shield 2 712-04290 Nut 3 750-05320 Engine Shroud Spacer 4 710-05304 Starter / Shroud Stud M6×100 5 951-11622 Flexible Clamp 6 710-05305 Hook Bolt 7 951-12206 Air Shield 192 710-05303 Self-Tapping Bolt 5.
4P90JUA Crankcase 48 49 50 51 197 - Gasket Kit - Complete 52 198 - Gasket Kit - External 53 199 - Complete Engine 47 189 72 183 185 72 73 186 184 55 183 54 56 57 58 59 62 68 178 60 66 64 65 69 67 36 70 74 63
4P90JUA Crankcase Ref. Part Number Description Ref. Part Number Description 47 951-11499 Upper Crankshaft Seal 68 951-12234 Throttle Control Bracket 48 710-04916 Bolt M6×14 69 750-05530 Component Bracket Spacer 49 751-12770 Breather Cover Plate 70 951-12235 Breather Hose Assembly 50 951-12226 Breather Gasket 72 951-12236 Breather Hose Clamp 51 951-12685 Umbrella Valve 73 751-12200A Short Block Assembly 52 951-12227 Mesh Screen (Incl.
4P90JUA Cylinder Head 177 197 - Gasket Kit - Complete 198 - Gasket Kit - External 176 199 - Complete Engine 173 175 174 172 154 152 153 157 155 175 174 151 162 151 155 153 146 147 157 148 173 164 149 163 150 193 146 147 148 149 194 171 145 196 164 144 143 163 170 166 167 168 169 142 165 140 142 142 142 140 140 141 140 38
4P90JUA Cylinder Head Ref. Part Number Description Ref. 165 Part Number 951-12202 Description Cylinder Head Kit 140 710-05315 Bolt M5×10 141 951-12265 Cowl 142 710-05316 Valve Cover Bolt 166 751-12774 Air Valve Core 143 951-12266 Valve Cover 167 751-12775 Strainer Clip 144 951-12267 Valve Cover Ring Gasket 168 751-12776 Strainer 145 951-11981 Rocker Arm Assembly 169 751-12777 The Air Valve Bonnet 736-04629 Washer (Incl.
4P90JUA Crankshaft & Crankcase Cover 76 75 79 80 77 91 92 83 5 93 90 82 81 98 104 89 88 87 86 84 99 100 86 101 85 112 113 116 117 103 195 114 115 118 119 117 117 40 102
4P90JUA Crankshaft & Crankcase Cover Ref. Part Number Description Ref. Part Number Description 5 951-11622 Flexible Clamp 98 951-12248 Oil Pump Assembly 75 951-12238 Crankshaft Assembly 99 951-12247 O-Ring 10×2.65 76 951-11969 Main Bearing 100 951-12249 Filter 77 951-10307 Woodruff Key 101 951-12250 Filter Spring 79 951-12239 Dipstick Assembly 102 951-12251 O-Ring 35.5×2.
4P90JUA Carburetor Assembly 134 133 134 132 137 139 132 136 139 I J K L K H O 131 200 - Carburetor Kit - Major N S P T U V W X Y BB CC DD Z GG HH 42 B C D E Q R G M 138 A F EE FF AA
4P90JUA Carburetor Assembly Ref. Part Number Description Ref.
4P90JUA Muffler Assembly 191 191 191 191 48 190 161 161 159 160 158 Ref.
4P90JUA Starter Assembly 9 8 10 11 12 11 12 11 12 24 23 13 24 25 36 34 35 33 35 36 34 15 16 17 31 19 29 30 Part Number 37 18 28 Ref. 37 14 25 Description 21 30 Ref.
4P90JUA Ignition & Electrical 40 41 42 43 38 38 38 44 39 45 46 Ref. 46 Part Number Description 38 710-04920 Bolt M6×28 39 951-12220 Ignition Coil Assembly 40 712-04220 Flywheel Nut M16×1.5 41 951-12221 Fan Mounting Plate 42 751-12222A Cooling Fan 43 951-12223 Flywheel 44 951-12224 Coil Assy.
Notes 47
To order replacement parts or locate your nearest service dealer call a Customer Support at (800) 800-7310. or visit www.mtdproducts.com to find the nearest authorized dealer in your area. MTD LLC, P.O.
