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Parts Manual for
20 HP HYDRO DRIVE ZTR
375Z SERIES
MODEL
375ZB2050CE (5900735)
Briggs & Stratton Yard Power Products Group
535 Macon Road
Manual No. 5101533
McDonough, GA, 30253 U.S.A.
800-935-2967
Revision IR, 8/13/2008 TP 400-7380-IR-HZ-N
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Table Of Contents PAGE GROUP Wheel & Tire Group 4 Main Frame & Front Suspension Group 6 Rear Suspension Group 8 10 Seat & Kickplate Group Fuel Tank Group 12 14 Fuel Supply Hose & Tank Replacement Parts Group Engine & PTO Group 16 18 Control Group Upper Control Group Lower 20 22 Brake Group Drive Group 26 28 Hydraulic Group Hydraulic Pump SERVICE PARTS - BDP/PG Series 30 36 Bumper Group Lift Group 38 50" Mower Deck - Housing, Arbors & Blades 42 50" Mower Deck - Belt & Idler Group 44 50" Mower Dec
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Wheel & Tire Group Manual No. 5101533 20 HP HYDRO DRIVE ZTR TP 400-7380-IR-HZ-N 375Z SERIES 4
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Wheel & Tire Group Item Part No Qty Description Note 1 5022433 2 WHEEL & TIRE ASSEMBLY, 11 X 4.0 - 5, COMPLETE (Includes Ref. Nos. 2 - 6) (S/N: 2013129510 & Below) 2 5022433X1 2 TIRE, FRONT, 11 X 4.0 - 5 3 5022433SX2 2 WHEEL ASSEMBLY, COMPLETE (Includes Ref. Nos. 4 & 5) 4 2172353 4 VALVE STEM & CAP ASSEMBLY 5 5021042 4 BEARING, ROLLER (2 Per Tire) 6 5021043 4 BEARING RETAINER (2 Per Tire) 7 5045996 2 AXLE, FRONT CASTER 8 5025017X52 2 BOLT, 1/2-13 X 6-1/2 9 5025056 2 NUT, HEX NYLON LOCK, 1/2-13
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Main Frame & Front Suspension Group Manual No. 5101533 20 HP HYDRO DRIVE ZTR TP 400-7380-IR-HZ-N 375Z SERIES 6
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Main Frame & Front Suspension Group Item Part No Qty Description Note 1 5401035D 1 WELD, MAIN FRAME, SMI 2 5021541 4 BUSHING, FLANGE 3 5023213 2 SHOCK, SPRING ASSEMBLY 4 5045990 2 DECK FRICTION REDUCER PLATE 5 5400756 1 SPACER, .76X 1.50 X .79 6 5047489 1 SPACER, .75 X 1.00 X 2.38 7 5022852 1 PIVOT BEARING, 1.00" X 1.125" OD X 1.50" 8 5023214 2 CAP, VINYL 1.687 X 1-1/2 9 5048775D 2 WELD, CASTER YOKE 10 5400962D 1 WELD, PIVOTING FRONT END 11 5025392 8 NUT, 5/16-18 HEX NYLOCK FLANGE 12 5025155 8 W
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Rear Suspension Group Manual No. 5101533 20 HP HYDRO DRIVE ZTR TP 400-7380-IR-HZ-N 375Z SERIES 8
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Rear Suspension Group Item Part No Qty Description Note 1 5400065 2 SPACER, .34 X 1.54 X .25 UHMW 2 5020095 2 GREASE FITTING, 1/4-28 STRAIGHT 3 5023483 2 SHOCK 4 5401012D 1 WELD, TIE BAR 5 5021541 4 BUSHING, FLANGE 6 5100194 2 SPACER, .52 X 1.00 X 5.00 7 5400973D 1 WELD, TRAILING ARM, RH 8 5400972D 1 WELD, TRAILING ARM, LH 9 5025158 2 WASHER, 1/2" SAE 10 5025017X52 2 BOLT, 1/2-13 X 6-1/2" GD8 YZ 11 5025396 2 NUT, 1/2-13 HEX NYLOCK FLANGE 12 5025171 8 WASHER, 3/8" SPLIT LOCK 13 5100334 2 SPACER,
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Seat & Kickplate Group Manual No. 5101533 20 HP HYDRO DRIVE ZTR TP 400-7380-IR-HZ-N 375Z SERIES 10
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Seat & Kickplate Group Item Part No Qty Description Note 1 5049978 1 SAFETY WALK, 11.50 X 17.38 2 5401027D 1 PLATE, FLOOR DETAIL 3 5049979 1 SAFETY WALK, 17.38 X 6.00 4 5400528D 1 WELD, SEAT PLATE 5 5061599 1 SEAT, XB-180, NO LOGO, BLACK 6 5400361D 1 MOUNT, OIL FILTER 7 5025013X8 2 BOLT, 3/8-16 X 1" GD5 YZ 8 5025394 4 NUT, 3/8-16 HEX NYLOCK FLANGE 9 5025013X32 1 BOLT, 3/8-16 X 4" GD5 YZ 10 7078299 2 SPRING, SEAT SUPPORT 11 5025292 10 WASHER, 5/16" GD.9 FLAT 12 5025011X8 10 BOLT, 5/16-18 X 1" GD5
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Fuel Tank Group Manual No. 5101533 20 HP HYDRO DRIVE ZTR TP 400-7380-IR-HZ-N 375Z SERIES 12
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Fuel Tank Group Item Part No Qty Description Note 1 5025011X6 16 BOLT, 5/16-18 X 3/4" GD5 2 5025155 20 WASHER, 5/16" SAE 3 5025392 8 NUT, 5/16-18 HEX NYLOCK FLANGE 4 5025299X4 2 SCREW, 1/4-20 X 1/2" ALLEN BH 5 5025386 6 SCREW, #10-24 X 3/8" ALLEN BHBZ 6 5025170 10 WASHER, 5/16" LOCK 7 5025011X8 4 BOLT, 5/16-18 X 1" GD5 YZ 8 5101181 1 TANK, FUEL, LH 9 5048909D 2 PLATE, FUEL TANK BADGE 10 5048763D 1 BRACKET, REAR SUPPORT - RH 11 5400836D 1 BRACKET, REAR SUPPORT - LH 12 5022158D 1 CAP, FUEL TANK, 3
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Fuel Supply Hose & Tank Replacement Parts Group Manual No. 5101533 20 HP HYDRO DRIVE ZTR TP 400-7380-IR-HZ-N 375Z SERIES 14
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Fuel Supply Hose & Tank Replacement Parts Group Item Part No Qty Description Note 1 5020835 2 CLAMP, HOSE, EXTERNAL, 1/2 - RED 2 5050831X22 1 HOSE, 1/4" FUEL, 22.00" 3 5023061 1 ELBOW FITTING 4 1654930 1 GROMMET 5 5020835 2 HOSE CLAMP 6 5050925X28 1 HOSE, 28" 7 5023067 1 SCREEN FITTING Footnotes: 20 HP HYDRO DRIVE ZTR Manual No. 5101533 375Z SERIES TP 400-7380-IR-HZ-N 15
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Engine & PTO Group Manual No. 5101533 20 HP HYDRO DRIVE ZTR TP 400-7380-IR-HZ-N 375Z SERIES 16
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Engine & PTO Group Item Part No Qty Description Note 1 5061857D 1 PLATE, CLUTCH ANCHOR 2 5043636 1 CLUTCH ANCHOR PAD 3 5044617 3 WASHER, .34 X 1.25 X 10 GA 4 5025011X8 5 BOLT, 5/16-18 X 1" GD5 YZ 5 5025392 9 NUT, 5/16-18 HEX NYLOCK FLANGE 6 5025155 14 WASHER, 5/16" SAE 7 5050407X18 1 KEY, 1/4" SQ. X 2 1/4 8 5048262D 2 BRACKET, SUPPORT, MUFFLER 9 5042132 1 SPACER, .45 X 1.62 X .37 10 5025011X6 4 BOLT, 5/16-18 X 3/4" GRD5 11 5025139 4 NUT, 5/16-18 HEX LG SERR FLG. 12 5023253 1 BOLT, CRANKSHAFT, 7
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Control Group Upper Manual No. 5101533 20 HP HYDRO DRIVE ZTR TP 400-7380-IR-HZ-N 375Z SERIES 18
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Control Group Upper Item Part No Qty Description Note 1 5021098 2 BEARING, BRONZE FLANGE, 3/4 2 5021499 2 BEARING, FLANGE 3 5025013X14 4 BOLT, 3/8-16 X 1-3/4" GD5 4 5025394 8 NUT, 3/8-16 HEX NYLOCK FLANGE 5 5025179X4 4 SCREW, #10-24 X 1/2" ROUND PHILLIPS 6 5025029 4 NUT, #10-24 HEX 7 5025013X8 4 BOLT, 3/8-16 X 1" GD5 YZ 8 5022095 2 SWITCH, PLUNGER, N.O./N.C. 9 5025327 4 BOLT, 3/8-16 X 1-1/4 SHCS (SOCKET HEAD) 10 5025055X16 2 BOLT, 5/16-18 X 2" GD5 TFL 11 5025139 4 NUT, 5/16-18 HEX SERRATED FLANG
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Control Group Lower Manual No. 5101533 20 HP HYDRO DRIVE ZTR TP 400-7380-IR-HZ-N 375Z SERIES 20
