Parts Catalog Form No. 3389-845 Rev B Register at www.Toro.com. Original Instructions (EN) Z Master® 8000 Series Riding Mower with 48in Direct-Collect Cutting Unit Model No. 74312—Serial No.
Ordering Replacement Parts For example, a wheel assembly might be identified by reference number 6, the tire by 6:1, the valve by 6:2, and the wheel by 6:3. When you order the assembly identified by reference number 6, you receive all parts identified by reference numbers 6:1,6:2, and 6:3. However, you may also order any part individually. Reference numbers of this type appear in illustration and in parts lists.
Contents Caster Wheel and Frame Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Speed Control Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Parking Brake Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Caster Wheel and Frame Assembly 3389-845B 4 A2
Caster Wheel and Frame Assembly (continued) Ref. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 21:2 21:3 22 23 24 24:1 24:1:1 24:1:2 24:1:3 Part Number Qty.
Speed Control Assembly 3389-845B 6 B2
Speed Control Assembly (continued) Ref. 1 2 3 4 5 6 7 7:2 8 9 9:2 10 10:2 11 12 12:2 13 14 15 16 17 18 19 20 20:1 20:2 20:3 20:4 20:5 20:6 21 21:1 21:2 Part Number Qty.
Parking Brake Assembly 3389-845B 8 C2
Parking Brake Assembly (continued) Ref. 1 2 4 5 6 8 9 10 11 12 12:1 12:2 12:3 12:4 12:5 12:6 Part Number Qty.
Seat and Consoles Assembly 3389-845B 10 D2
Seat and Consoles Assembly (continued) Ref. 1 2 3 4 5 5:2 6 7 8 9 10 11 12 13 14 Part Number Qty. Description 1-807513 2 Bolt-CARR 130-2857 1 Console-RH 126-4343 1 Console-LH 109-2661 4 Screw-PPH 130-2895 1 Control Panel ASM 130-2881 1 Decal-Control 109-4641 1 Cable-Throttle 322-2 6 Screw-HH 3231-27 1 Screw-CARR 3256-23 6 Washer-Flat 3296-2 2 Nut-Lock, NI 3296-39 3 Nut-Lock, NI 103-4362-03 1 Frame-Seat 116-9554 1 Link-Seat Stop 103-5496 4 Mount-Vibration, Rubber Ref.
Hydraulic Assembly 3389-845B 12 E2
Hydraulic Assembly (continued) Ref. 1 1:1 1:2 2 3 4 5 6 6:1 6:1:1 6:1:2 6:2 7 8 9 10 12 13 13:2 14 14:2 15 15:1 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Part Number Qty.
Hydraulic Pump Assembly No.
Hydraulic Pump Assembly No. 116-7836 (continued) Ref. 1 2 Part Number Qty. Description 104-5311 1 Bearing-Ball 103-7443 1 Cylinder Block Kit Ref. 3 4 15 Part Number Qty.
Idler Assembly No.
Idler Assembly No. 103-7349 (continued) Ref. 1 2 3 Part Number Qty. Description 103-3504 2 Bearing-Spherical 32120-10 2 Ring-Snap 103-3506 2 Seal-Lip, Single Ref. 4 6 17 Part Number Qty.
Blower Mounting Assembly 3389-845B 18 F2
Blower Mounting Assembly (continued) Ref. 1 2 3 4 Part Number Qty. Description 116-9649 1 Blower ASM 103-6733 1 Sheave-Blower 321-6 2 Screw-HH 3256-22 4 Washer-Flat Ref. 5 6 7 8 19 Part Number Qty.
Blower Assembly No.
Blower Assembly No. 116-9649 (continued) Ref. 1 1:2 1:3 1:4 2 3 4 5 6 7 8 Part Number Qty. Description 116-9648 1 Housing ASM 103-3540 2 Bearing-Ball 103-4921 1 Spacer-Bearing 32120-8 2 Ring-Snap 67-7490 1 Key-Square 103-3894 1 Spacer-Blower 103-5194 1 Impeller-3 Blade 103-3370-03 1 Cover-Blower 32128-20 10 Nut-HF 1-543610 1 Washer-Clutch 1-603610 2 Washer-Spring Ref. 9 10 10:2 11 12 13 14 15 16 17 21 Part Number Qty.
Engine, Muffler and Air Cleaner Assembly 3389-845B 22 H2
Engine, Muffler and Air Cleaner Assembly (continued) Ref. 1 1:3 1:4 1:7 1:8 2 3 4 5 6 7 8 9 10 11 12 Part Number Qty.
Fuel System Assembly 3389-845B 24 I2
Fuel System Assembly (continued) Ref. 1 2 4 5 6 8 9 10 11 12 13 14 14:2 14:2:1 14:2:2 14:2:3 14:3 14:4 Part Number Qty.
Electrical System Assembly 3389-845B 26 J2
Electrical System Assembly (continued) Ref. 1 2 3 5 8 9 10 11 12 13 14 15 16 18 19 20 21 22 22:1 22:2 Part Number Qty.
Hopper Mounting Assembly 3389-845B 28 K2
Hopper Mounting Assembly (continued) Ref. 1 2 3 4 4:1 4:2 4:3 4:4 4:5 5 6 7 8 9 10 11 12 13 Part Number Qty.
Hopper Assembly No.
Hopper Assembly No. 130-2872 (continued) Ref. 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Part Number Qty.
Hopper Screen Assembly No.
Hopper Screen Assembly No. 109-0717 (continued) Ref. 1 2 3 4 5 Part Number Qty. Description 103-8203-03 2 Guide-Screen 103-7048-03 1 Panel-Screen, Removable 103-7098-03 1 Handle-Screen, LH 103-7099-03 1 Handle-Screen, RH 103-5745-03 1 Panel-Screen, Hopper Ref. 6 7 8 9 10 33 Part Number Qty.
Hopper Door Assembly No.
Hopper Door Assembly No. 130-2875 (continued) Ref. 1 2 3 3:2 4 4:2 5 5:1 5:2 6 Part Number Qty. Description 130-2877 1 Door-Hopper 109-4153-03 1 Support-Door 109-4253 1 LH Door Pivot ASM 120-0625 1 Decal-Warning, Pinch Point 109-4254 1 RH Door Pivot ASM 120-0625 1 Decal-Warning, Pinch Point 109-0715 2 Damper Kit 103-8324 2 Clip-Retainer 103-5746 1 Shock-Gas Tension 130-8450-03 1 Plate-Door, Hopper Ref. 7 8 9 10 11 12 13 14 15 35 Part Number Qty.
Hopper Frame Assembly No.
Hopper Frame Assembly No. 109-4086 (continued) Ref. 2 3 4 Part Number Qty. Description 103-7824 1 Insulation-Foam Pad, Rear 103-7825 1 Insulation-Foam Pad, Front 1-543963 2 Bumper-Rubber Ref. 5 6 37 Part Number Qty.
Drive Assembly 3389-845B 38 L2
Drive Assembly (continued) Ref. 1 2 3 4 5 6 7 7:1 7:2 7:3 7:5 7:6 8 8:2 8:3 9 10 12 12:2 13 13:2 14 14:1 14:2 14:3 14:4 14:5 15 16 17 18 19 20 21 Part Number Qty.
Deck Mounting Assembly 3389-845B 40 M2
Deck Mounting Assembly (continued) Ref. 1 2 Part Number Qty.
Deck, Gearbox and Driveshaft Mounting Assembly 3389-845B 42 M2A4
Deck, Gearbox and Driveshaft Mounting Assembly (continued) Ref. 1 2 3 3:1 3:2 3:3 4 5 5:2 5:3 6 6:1 6:2 6:3 6:4 7 8 9 10 11 12 13 14 15 16 17 18 Part Number Qty.
Deck Decal Assembly No.
Deck Decal Assembly No. 109-4372 (continued) Ref. 2 3 4 5 7 8 Part Number Qty. Description 116-8934 2 Decal-Height Adjust, Cutting 93-7818 2 Decal-Torque, Blade Bolt 112-9028 1 Decal-Missing, Cover 112-8760 2 Decal-Danger 103-8630 1 Pad-Anti Skid 32148-7 4 Nut-Insert Ref. 9 10 11 12 13 45 Part Number Qty.
Discharge Tube Assembly No.
Discharge Tube Assembly No. 103-9487 (continued) Ref. 2 3 4 5 Part Number Qty. Description 109-2228-03 1 Guard-Plenum 103-5868-01 1 Mount-Spring 103-4974 1 Hinge-Piano 1-803075 8 Screw-Head, Truss Ref. 6 8 9 10 47 Part Number Qty.
Gearbox Assembly No.
Gearbox Assembly No. 103-3387 (continued) Ref. 1 2 3 4 5 6 7 Part Number Qty. Description 109-0189 1 Pinion-Input 109-0190 1 Housing-Center 109-0191 1 Housing-End 109-0193 1 Output Shaft And Gear-LH 109-0195 1 Output Shaft And Gear-RH 109-0196 1 Cap-Output 109-0198 1 Tube-Connector, Shor Ref. 8 9 10 11 12 13 14 Part Number Qty.
Rear Deck Height Adjustment Assembly No.
Rear Deck Height Adjustment Assembly No. 109-0323 (continued) Ref. 2 3 4 5 Part Number Qty. Description 1-413425 1 Spacer-Deck Support 103-7353 1 Pin-Cut Height 3290-357 1 Nut-HHF, Whiz 106-5597 1 Spacer-Idler Ref. 6 7 8 51 Part Number Qty.
Drive Shaft Assembly No.
Drive Shaft Assembly No. 103-9485 (continued) Ref. 1 1:1 1:1:1 Part Number Qty. 1 54-9180 2 62-3820 1 Description Drive Shaft-Telescoping ● U-Joint Kit Fitting-Grease Ref. 1:2 1:3 2 Part Number Qty.
Deck Support Frame Assembly No.
Deck Support Frame Assembly No. 130-2893 (continued) Ref. 1 2 3 4 5 6 7 8 9 9:1 9:1:1 9:1:2 9:1:3 Part Number Qty. Description 103-9480 1 Deck Support ASM 103-3729-01 1 Pivot-Deck, RH 103-3732-01 1 Pivot-Deck, LH 1-543509 4 Bearing-Roller, Tapered 1-543511 2 Seal-Grease 109-1933-01 2 Fork-Caster 1-633508 6 Washer-Bellville 3296-51 2 Nut-Lock, NI 130-2867 2 Wheel And Axle ASM 130-2866 1 Wheel And Tire 302-61 1 Fitting-Grease 103-4588 1 Bearing-Roller, Straight 1-513810 2 Bushing Ref.
Deck Support W/Decals Assembly No.
Deck Support W/Decals Assembly No. 103-9480 (continued) Ref. 2 3 4 5 6 7 Part Number Qty. Description 103-7436 2 Bushing-Support, Deck 32120-33 2 Ring-Retaining 1-811010 2 Plug 93-6696 2 Decal-Warning 116-8935 2 Decal-Warning, Folding Deck 116-8936 1 Decal-Danger Ref. 8 9 10 11 12 13 57 Part Number Qty.
Lift Assist Spring Assembly No.
Lift Assist Spring Assembly No. 116-7851 (continued) Ref. 1 2 3 4 5 6 Part Number Qty. Description 103-4284 1 Tensioner-Spring 103-4285 1 Mount-Lift Assist, Deck 103-3773 1 Shaft-Adjustment, Spring 103-4281 1 Spring-Extension 103-3772 1 Plug-Adjuster, Spring 614672 1 Bolt-Shoulder Ref. 7 8 9 10 11 59 Part Number Qty.
Attachments and Accessories For 74312 Z Master 8000 Series Riding Mower with 48in Direct-Collect Cutting Unit Product Name Model/Part Winter Hydraulic Filter ..................................................................................................................... 1-633752 Hypr-Oil 500 (quart) ..........................................................................................................................114-4713 Hypr-Oil 500 (gallon)....................................................
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