Page 1
For Discount Troy Bilt Parts Call 606-678-9623 or 606-561-4983
17AA5ABP766 RZT 50 (2006) Page 1 of 25
Control Handle
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Page 2
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17AA5ABP766 RZT 50 (2006) Page 2 of 25
Control Handle
Ref # Part Number Qty Description S/P/F
2 603-04322 Lever, Lapbar, RH 1
2 603-04324 Lever, Lapbar, LH 1
4 703-05387A Bracket, Lapbar Pivot 1 S
11 710-3008 Screw, Hex Cap, 5/16-18 x .75 GR5 1 /P
13 710-3180 Screw, Hex Cap, 5/16-18 x 1.75 GR5 1 /P
16 712-04063 Nut, Hx Flange Insert Lck, 5/16-18 GrF 1 /P
24 720-0274 Grip, Hand 1 /P
32 736-0275 Washer, Flat, .344 x .688 x .065 1 S
35 738-0296 Screw, Shoulder, .437 x .268:5/16-18 1 S
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Page 3
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17AA5ABP766 RZT 50 (2006) Page 3 of 25
Controls and Deck Lift
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Page 4
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17AA5ABP766 RZT 50 (2006) Page 4 of 25
Controls and Deck Lift
Ref # Part Number Qty Description S/P/F
1 603-04160A Shaft Assembly, Deck Lift 1 S
2 603-04322 Lever, Lapbar, RH 1
3 603-04324 Lever, Lapbar, LH 1
4 703-05387A Bracket, Lapbar Pivot 2 S
5 703-05396 Handle, Brake 1 S
6 703-05414A Bracket, Front Deck Hanger 1
7 703-05793 Arm, Deck Lift 2 /P
8 710-0433 Screw, Hex Lock, 1/4-20 x .62 GR5 2 /P
9 710-0805 Screw, Hex Cap, 5/16-18 x 1.5 GR5 ... 2 /P
10 710-3005 Screw, Hex Cap, 3/8-16 x 1.25 GR5 ... 1 /P
11 710-3105 Bolt, Carriage, 5/16-18 x .875 2
12 710-3144 Screw, Hex Cap, 3/8-16 x 2.0 GR5 2 /P
13 710-3180 Screw, Hex Cap, 5/16-18 x 1.75 GR5 2 /P
14 711-0832 Ferrule, 3/8-24 x .375 2 S
15 712-3048 Nut, Hex Jam, 1/2-13 GR5 4 S
16 712-04063 Nut, Hx Flange Insert Lck, 5/16-18 GrF 6 /P
17 712-04065 Nut, Hx Flange Insert Lck, 3/8-16GrF 2 /P
18 712-0431 Nut, Hex Flange Lock, 3/8-16 GRF 5 S
19 712-3007 Nut, Hex Jam, 5/16-18 GR5 2 /P
20 712-3008 Nut, Hex Jam, 3/8-16 GR5 2 S
21 714-0104 Pin, Internal Cotter 6 S
22 714-3020 Pin, Internal Cotter 1 /P
23 716-0106 E-Ring , .625 Dia. Shaft 4 /P
24 720-0274 Grip, Hand 2 /P
25 720-0311 Grip, Handle 1
26 720-04072 Knob, Nut, 5/16-18 Nylon Lock 2 S
27 731-04735 Grip, Handle 1
28 732-0334 Spring, Compression 1 S
29 732-0874 Spring, Torsion 1 /P
30 732-04350 Spring, Compression 2
31 736-0270 Washer, Bell, .265 x .75 x .062 2 /P
32 736-0425 Washer, Bell, .325 x .93 x .045 2 S
33 736-3019 Washer, Flat, .531 x 1.062 x .134 HT 2
34 738-0143 Screw, Shoulder, .498 x .340:3/8-16 4 /P
35 738-0296 Screw, Shoulder, .437 x .268:5/16-18 2 S
36 741-0225 Bearing, Hex Flange 6 S
37 741-3074 Bearing, Flange, .626 x .938 x .344 2
38 746-0970 Cable, Deck Lift, 5.05 Long 2
39 747-04224 Rod, Deck Lift Handle 1
40 747-04225A Rod, Lapbar Control 2 /P
41 747-04226 Shaft, Control 2 S
42 747-04401A Rod, Deck Front Hanger 1
43 747-04491 Rod, Brake 2 S
44 748-04052 Hub, Control 2
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17AA5ABP766 RZT 50 (2006) Page 5 of 25
Drive RZT50
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17AA5ABP766 RZT 50 (2006) Page 6 of 25
Drive RZT50
Ref # Part Number Qty Description S/P/F
1 759-04145 Transmission Assembly, RH, Service Kit
1
replaces 618-04326 NLA
732-04448 Neutral Return Spring Included in service kit,
618-04432A Transmission, RH Double D axle 1 S
2 759-04144 Transmission Assembly, LH, Service Kit
732-04448 Neutral Return Spring Included in service kit,
618-04431A Transmission, LH Double D axle 1 S
3 634-04171 Wheel Assembly, 18 x 9.5 x 8, RZT50 2 S
3 734-1729 Tire, 18 x 9.5 x 8, RZT50 not shown 2
3 734-0255 Valve Assembly not shown 2 S
4 710-0176 Screw, Hex Cap, 5/16-18 x 2.75 GR5 4 /P
5 710-0395 Screw, Hex Cap, 5/16-18 x 2.25 GR5 2 /P
6 710-0852 Stud, Rib Neck, 7/16-14 x 1.6 8 /P
7 712-04063 Nut, Hx Insert Flange Lck, 5/16-18 6 /P
8 712-04088 Nut, Hex Lock, 9/16-18 GRC 2 /P
9 712-0459 Nut, Hex Flange Lock, 7/16-20 GrB 2 /P
10 712-3050 Nut, Lug, 7/16-14 8 /P
11 714-0507 Pin, Cotter, 3/32 x .75 2 S
12 726-04059 Clamp, Hose 2
13 738-04192 Rod, .405 x 14.0 2
14 747-04217B Rod, Bypass 2 S
15 748-04055 Hub, Wheel RZT50, Spline 2 S
15 618-04317 Hub, Wheel RZT50, Double D Included in
1 /P
not shown, must have the same color neutral
return spring on RH & LH transmission
1
replaces 618-04327 NLA
1 /P
not shown, must have the same color neutral
return spring on RH & LH transmission
2 S
service kit, not shown
16 750-04561 Tube, .45 x .69 x 10.2 2
17 754-04043 V-Belt, Type A Sec x 57.7 1 S
710-3119 SCREW:3/8"-16 x .750:GR5:LOCK Included
726-04059 CLAMP:HOSE: .750 Included in service kit,
736-0227 WASHER:FLAT: .390 x 1.50 x .134 Included
751-10474 HOSE:BREATHER Included in service kit,
737-3120 Drive System Fluid not shown 1 /P
1 /P
1
1 S
1
in service kit, not shown
not shown
in service kit, not shown
not shown
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Page 7
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17AA5ABP766 RZT 50 (2006) Page 7 of 25
Electrical
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17AA5ABP766 RZT 50 (2006) Page 8 of 25
Electrical
Ref # Part Number Qty Description S/P/F
1 710-0227 Screw, Hex Wash. Hd. Tapp #8-18 x .5 2 /P
2 710-0599 Screw, Hex Wash. Hd. Tapp, 1/4-20 x .5 2 /P
3 710-3015 Screw, Hex Cap, 1/4-20 x .75 GR5 .. 2 /P
4 712-0271 Nut, Hex Sems, 1/4-20 4 /P
5 725-04022A Meter, Hour 1 S
6 725-04165 Switch, Dbl. Pole - Neutral 2 S
7 725-04174 Switch, PTO 1 S
8 725-04228 Switch, Ignition 1 S
9 725-04232 Switch, 3-Pole, (NC-NO-NO) - Brake 1
10 725-1303 Switch, Outer Seat Spring 1 S
11 725-1426A Solenoid 1 S
12 725-1439 Switch, Inner Seat Spring 1
13 925-1745 Key 1 S
14 725-1707D Battery, 235 CCA 1 S
15 725-3166 Switch, Snap Mount (N.C.) - Reverse 2 S
16 726-0278 Plate, Insulator Boss 1
17 726-0279 Plate, Insulator 2
18 726-0470 Tie, Cable 2
19 747-04425 Rod, Battery Holddown 1
725-04297 Harness Assembly, Wire (not shown) 1
725-04188 Cable Wire, Black - to Ground (not shown) 1
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Page 9
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17AA5ABP766 RZT 50 (2006) Page 9 of 25
Engine Accessories and PTO RZT 50
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17AA5ABP766 RZT 50 (2006) Page 10 of 25
Engine Accessories and PTO RZT 50
Ref # Part Number Qty Description S/P/F
1 603-04162 Tube, Exhaust RH 1
2 603-04163 Tube, Exhaust LH 1
3 751-10057C Tank, Fuel, 3.0 Gal. 1 S
4 703-05441A Bracket, Muffler Mounting 1 /P
5 710-0227 Screw, Hex Wash. Hd. Tapp #8-18 x .5 3 /P
6 710-04248 Screw, Hex Cap, 7/16-20 x 4.0 GR5 1 /P
7 710-0599 Screw, Hex Wash. Hd. Tapp 1/4-20 x .5 4 /P
8 710-0726 Screw, Hex Wash. Hd. Tapp 5/16-12 x .75 2 /P
9 710-04261 Screw, Hex Wash. Hd. Tapp #12-16 x .5 2
10 710-1314A Screw, Socket Hd. 5/16-18 x .75 4 /P
11 710-1315 Screw, Hex Wash. Hd. Tapp 3/8-16 x 1.25 4 /P
12 710-3008 Screw, Hex Cap, 5/16-18 x .75 GR5 2 /P
13 710-3217 Screw, Truss Hd. Mach. #8-32 x .375 1 /P
14 712-0142 Nut, Hex, #8-32 1 /P
15 712-04063 Nut, Hex Insert Lock, 5/16-18 GR5 2 /P
16 717-04183 Clutch Assembly, Electric PTO 1 S
17 721-0460 Gasket, Exhaust 2
18 731-04914 Knob, Throttle Control 1 /P
19 736-0171 Washer, Lock, 7/16 1 S
20 736-04131 Washer, Flat, .438 x 1.75 x .25 1 /P
21 746-04214 Cable, Choke, 61Lg 1 S
22 746-1086 Cable, Throttle, 39.0 Lg 1 S
23 747-04228A Wire, Tank Mounting 1
24 751-10349 Hose, Fuel Line 10 in 1
25 751-0564B Deflector, Muffler 1 /P
26 751-0616B Muffler 1 /P
27 751-3140 Valve, Oil Drain 1 S
28 751-3141 Hose, Oil Drain Extension 1 S
29 751-3142 Cap, Oil Drain Valve 1
30 756-0978A Pulley, Drive 1 S
31 726-0205 Clamp, Hose 2 /P
32 712-0271 Nut, Hex Sems, 1/4-20 1 /P
33 712-3005 Nut, Hex Flange Lock, 3/8-16 GR5 ... 1 S
34 726-3055 Clip, Cable Retainer 1
35 751-3124B Cap, Fuel 1 S
36 736-0300 Washer, Flat, .406 x .875 x .059 1 S
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Page 11
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17AA5ABP766 RZT 50 (2006) Page 11 of 25
Frame and Drive Idler Assembly
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Page 12
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17AA5ABP766 RZT 50 (2006) Page 12 of 25
Frame and Drive Idler Assembly
Ref # Part Number Qty Description S/P/F
1 603-04303B Frame Assembly 1 /P
1 777D09987 Graphic, Troy-Bilt 1
1 777I22489 Graphic, Release Lever 2
2 703-05829 Idler Arm, Drive 1 /P
3 710-0520 Screw, Hex Cap, 3/8-16 x 1.5 GR5 3 /P
4 710-3005 Screw, Hex Cap, 3/8-16 x 1.25 GR5 1 /P
5 712-04065 Nut, Hx Insert Flange Lck, 3/-16 GRF 4 /P
6 732-0626 Spring, Extension, .75 x 5.06 1
7 738-04058 Spacer, Shoulder, .39 x 1.0 x .7 2
8 738-04162A Screw, Shoulder, .884 x .19 1 /P
9 756-04129 Pulley, Idler, 4.25 Dia. 1 S
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Page 13
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17AA5ABP766 RZT 50 (2006) Page 13 of 25
Front Axle
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Page 14
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17AA5ABP766 RZT 50 (2006) Page 14 of 25
Front Axle
Ref # Part Number Qty Description S/P/F
1 603-04148A Axle, Front Pivot 1
2 603-04308 Bracket, Castor Wheel 2
3 634-04237 Wheel Assembly, 11.0 x 4.0 x 5.0 2 S
4 710-04186 Screw, Hex Lock, 1/2-13 x 1.25 GR5 2 /P
5 710-0514 Screw, Hex Cap, 3/8-16 x 1.0 GR5 2 /P
6 711-04228 Shaft, Axle 1 S
7 712-3022 Nut, Hex Lock, 1/2-13 GRB 2 /P
8 731-05500 Bearing, Flange, 1.0 x 1.246 6
9 736-0169 Washer, Lock, 3/8 2 S
10 736-0227 Washer, Flat, .39 x 1.5 x .134 2 S
11 736-0250 Washer, Flat, 1.0 x 1.75 x .107 2 /P
12 737-3000 Fitting, Lube, 3/16 Drive 3 S
13 738-04182 Screw, Shoulder, .75 x 4.75:7/16-14 2 S
14 741-0516B Bearing, Flange, .76 x 1.0 x 1.2 2 /P
15 741-0990B Bearing, Flange, .76 ID w/Lube Ftg. 2 /P
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Page 15
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17AA5ABP766 RZT 50 (2006) Page 15 of 25
Mower Deck 50 inch
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Page 16
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17AA5ABP766 RZT 50 (2006) Page 16 of 25
Mower Deck 50 inch
Ref # Part Number Qty Description S/P/F
1 603-04328 Housing, Deck 1 S
1 777S32598 Graphic, Danger 1
1 777S30503 Graphic, Danger 1 /P
1 777I22282 Graphic, Instruction 1 S
2 618-04126 Spindle Assembly 3 S
2 756-1171 Pulley, 5.39 Dia 3
2 737-3000 Fitting, Lube, 3/16 Drive 3 S
3 631-04070 Chute Assembly, Discharge 1 S
3 777S30284 Graphic, Danger 1 S
4 683-0254 Bracket, Deck Hanger 1 S
5 703-05825 Arm, Idler 1
6 703-3279 Bracket, Stop 1
7 703-3511 Guard, Finger 1 S
8 710-0347 Screw, Hex Cap, 3/8-16 x 1.75 GR5 ... 3 /P
9 710-0528 Screw, Hex Cap, 5/16-18 x 1.25 GR5 . 1 /P
10 710-0599 Screw, Hex Wash. Hd. Tapp 1/4-20 x .5 7 /P
11 710-0726 Screw, Hex Wash. Hd. Tapp 5/16-12 x .75 6 /P
12 710-1260A Screw, Hex Wash. Hd. Tapp 5/16-18 x .75 12 /P
13 710-3005 Screw, Hex Cap, 3/8-16 x 1.25 GR5 1 /P
14 710-3168 Screw, Carriage, 3/8-16 x 1.0 1 /P
15 710-3178 Screw, Carriage, 3/8-16 x .75 4 /P
16 712-04065 Nut, Hx Insert Flange Lck, 3/6-16 GrF 9 /P
17 712-0417A Nut, Hex Flange, 5/8-18 3 /P
18 712-0431 Nut, Hex Flange Lock, 3/8-16 GRF 4 S
19 712-0641 Nut, Hex, M16-1.5 2 S
20 714-0470 Pin, Cotter, 1/8 x 1.25 2 S
21 717-1553B Gear, Deck Adjustment 1 S
23 732-0306A Spring, Compression 2 S
24 732-0459 Spring, Extension, .94 Dia. x 6.74 1 S
25 734-04155 Wheel, Deck Ball, 5.0 4
26 736-0119 Washer, Lock, 5/16 1 S
27 736-0407 Washer, Bell, .45 x 1.0 x .062 1
28 736-0760 Washer, Lock 2 S
29 736-3072 Washer, Flat, .38 x .93 x .110 HT 3 /P
30 738-04146 Plug, Screw, M16 x 1.5 2
31 738-04162A Spacer, Shoulder, .884 x .190 1 /P
32 738-3056 Screw, Shoulder, .5 x 2.5:3/8-16 4 S
33 742-04053A Blade, 2 in 1, 17.9 Lg 3 S
34 747-1116 Rod, Deck Hanger 2 /P
35 754-04044 Belt V, Type A Sec x 134 1 S
36 756-04129 Pulley, Idler, 4.25 Dia 3 S
37 783-04399 Cover, Belt LH 1
38 783-04400 Cover, Belt RH 1
39 783-04414 Skirt, Center 1 S
40 783-04415 Skirt, RH 1
41 731-3131A Chute, Deflector 1 S
42 783-04470 Bracket, Chute Mounting 1 /P
43 732-3070 Spring, Torsion 1 S
44 711-1762 Pin, Hinge 1
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Page 17
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17AA5ABP766 RZT 50 (2006) Page 17 of 25
Operator's Platform
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Page 18
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17AA5ABP766 RZT 50 (2006) Page 18 of 25
Operator's Platform
Ref # Part Number Qty Description S/P/F
1 603-04326 Frame, Seat Box 1 S
1 777I22600 Graphic, Park Brake 1
1 777S32354 Graphic, Warning 1 S
1 777I22307 Graphic, Deck Height 1
2 703-05373A Bracket, Foot Rest 1
2 777D09987 Graphic, Troy-Bilt 1
3 703-05467 Bracket, Switch Mounting 2
4 710-04261 Screw, Hex Wash. Hd Tapp #12-16 x .50 4
5 710-0599 Screw, Hex Wash. Hd. Tapp. 1/4-20 x .5 4 /P
6 710-0604A Screw, Hex Wash. Hd. Tapp 5/16-18 x .625 20 /P
7 710-0726 Screw, Hex Wash. Hd. Tapp 5/16-12 x .75 6 /P
8 710-0778 Screw, Hex Wash. Hd. Tapp. 1/4-20 x 1.5 2 /P
9 710-1268 Screw, Hex Wash. Hd Tapp #10-16 x .375 2 /P
10 712-0298 Nut, Hex Jam, 1/4-20 GR2 2 S
11 712-04092 Nut, U Type Speed, 1/4-20 2
12 712-0431 Nut, Hex Flange Lock, 3/8-16 GRF 2 S
13 723-04020 Pad, Abrasive Foot Plate 1
14 723-04021 Pad, Abrasive Toe Plate 1
15 731-04662B Console, LH 1 S
15 777I22608 Graphic, Instruction 1
15 777D09986 Graphic, Troy-Bilt 1
15 777I22305 Graphic, Throttle Control 42" 1
15 777I22309 Graphic, Throttle Control 50" 1
16 731-04663A Console, RH 1 S
16 777I22609 Graphic, Instruction 1
16 777D09985 Graphic, Troy-Bilt 1
17 732-04035 Spring, Compression, 1.28 x 3.125 2
18 732-04200 Spring, Switch Actuator 2 /P
19 736-0300 Washer, Flat, .406 x .875 x .059 2 S
20 738-0430 Screw, Shoulder, .50 x .685:3/8-16 ... 2
21 757-04010 Seat 1 S
22 783-1489B Bracket, Seat Pivot 2 /P
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Page 19
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17AA5ABP766 RZT 50 (2006) Page 19 of 25
Quick Reference 50 Inch
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17AA5ABP766 RZT 50 (2006) Page 20 of 25
Quick Reference 50 Inch
Ref # Part Number Qty Description S/P/F
759-3336 Spark Plug 1 /P
BS-492932S Oil Filter 1 /P
BS-273638S Pre Filter 1 /P
BS-499486S Air Filter 1 /P
BS-691035 Fuel Filter 1 /P
751-3124B Fuel Cap 1 S
725-1426A Solenoid 1 S
618-0427 Deck Spindles 1 S
942-0616A Blades 1 /P
712-0417A Blade Nut 1 /P
734-04155 Deck Wheels 1
N/A Ball Joints 1
925-1745 Ignition Keys 1 S
746-04161 Throttle Cable 1 S
746-0970 Lift Cable 1
N/A Upper Drive Belt 1
754-04043 Lower Drive Belt 1 S
754-04045 Deck Spindle Belt 1 S
N/A PTO Belt 1
725-04363 Saftey Switch - Brake 1
725-04363 Saftey Switch - Deck 1
731-1032B Discharge Chute 1 S
N/A Mulch Plug 1
725-1707D Battery 1 S
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Page 21
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17AA5ABP766 RZT 50 (2006) Page 21 of 25
Seat Base Assembly
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Page 22
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17AA5ABP766 RZT 50 (2006) Page 22 of 25
Seat Base Assembly
Ref # Part Number Qty Description S/P/F
1 710-1268 Screw, Hx. Wash. Hd. Tapp #10-16 x .375 2 /P
2 712-04063 Nut, Hx Insert Flange Lck, 5/16-18 GrF 2 /P
3 712-04064 Nut, Hx Insert Flnge Lck, 1/4-20 GrF 1 /P
4 720-0309A Grip, Seat Adjustment 1 /P
5 726-0201 Nut, Speed, .3125 2
6 731-04074 Spacer, Seat Adjustment 4
7 732-0499 Spring, Compression, .41 x 1.5 1
8 732-1184 Spring, Extension, .84 Dia. x 4.6 1 /P
9 736-0275 Washer, Flat, .344 x .688 x .065 3 S
10 736-3019 Washer, Flat, .531 x 1.062 x .134 HT 2
11 738-0137A Screw, Shoulder, .34 x .285:1/4-20 1 S
12 738-0296 Screw, Shoulder, .437 x .268:5/16-18 2 S
13 738-0966A Screw, Shoulder, .5 x .925:3/8-16 4 /P
14 783-0209D Bracket, Seat Lift 1 /P
15 783-0611 Stop, Seat Adjustment 1
16 783-0738C Bracket, Seat Pivot 1 S
17 783-0739A Lever, Seat Adjustment 1 S
18 783-0753 Index Bracket, Seat Adjustment 1
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17AA5ABP766 RZT 50 (2006) Page 23 of 25
Transmission
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17AA5ABP766 RZT 50 (2006) Page 24 of 25
Transmission
Ref # Part Number Qty Description S/P/F
1 HG-70862R Housing Assembly, Main RH 1 /P
1 HG-70862L Housing Assembly, Main LH 1 /P
2 HG-70863R Side Assembly, RH 1 /P
2 HG-70863L Side Assembly, LH 1 /P
3 HG-51448 Plate, Bypass 1
4 HG-70723 Pump Block Assembly 1 /P
5 HG-51949 Spacer, .32 x 1.005 1
6 HG-70331 Motor Block Assembly 1 /P
7 HG-9005110-5600 Plug, SAE #6 1 /P
8 HG-9004800-2506 Pin, Stainless 2
9 HG-51190 Screw, Hex Self Tapping, 1/4-20 x 1.25 16 /P
10 HG-70719 Seal, Brake, RH Trans. 1 /P
10 HG-50442 Seal, Lip, LH Trans. 1 S
11 HG-50016 Bolt, Hex Flange, 3/8-24 x 2.5 3
12 HG-51626 Seal, Lip, .375 x .75 x .25 1
13 HG-51628 Ring, Retaining, .375 Ext. 2 /P
14 HG-51625 Rod, Bypass 1
15 HG-51627 Ring, Retaining, .75 Int. 1
16 HG-52370 Arm, Bypass RH Trans. 1
16 HG-51910 Arm, Bypass LH Trans. 1
17 HG-51630 Ring, Retaining, .375 Push ... 1 /P
18 HG-51048 Swashplate, Trunnion 1 /P
19 HG-51140 Seal, Lip, 18 x 32 x 7 1 /P
20 HG-44130 Washer, Flat, 11/32 x 7/8 x 1/16 1 S
21 HG-51812 Screw, 5/16-24 x 1.0 1 /P
22 HG-2003014 Spring, Compression 1 /P
23 HG-2003017 Washer, .591 x .787 x .04 1 /P
24 HG-51062 Shaft, Input 1 /P
25 HG-50315 Bearing, Ball, 17mm x 40 x 12 1
26 HG-2000022 Ring, Wire Retaining, .561 1 /P
27 HG-50951 Spacer 1 /P
28 HG-51161 Seal, Lip, 17 x 40 x 7 1 /P
29 HG-50329 Ring, Retaining 2 /P
30 HG-50551 Bearing, Thrust, 30 x 52 x 13 2 S
31 HG-44371 Washer, Flat, 5/8 x 1.0 x .05 1 /P
32 HG-44145 Ring, Retaining 1
33 HG-51130 Gear, Pinion, 13T 1
34 HG-51632 Shaft, Motor RH Trans. 1
34 HG-51845 Shaft, Motor LH Trans. 1
35 HG-51069 Washer, .71 x 1.16 x .04 1
36 HG-50132 Washer, HT, .5 x 1.0 x .032 .. 2 /P
37 HG-51129 Gear, 10T/48T 1
38 HG-51043 Gear, Jackshaft, 10T 1 /P
39 HG-51083 Pin, Jackshaft 1
40 HG-44871 Ring, Spiral Retaining 1 /P
41 HG-51633 Gear, Bull, 52T 1 S
42 HG-44875 Washer, 3/4 x 1.5 x .13 1 /P
43 HG-51088 Bearing, Sleeve 1 /P
44 HG-51954 Axle 1 S
45 HG-51089 Bushing, .752 x 1.571 x .625 1 /P
46 HG-51066 Seal, Lip, .75 x 1.577 x .25 1 /P
47 HG-70868R Kit, Expansion Plate, RH Trans 1
47 HG-70868L Kit, Expansion Plate, LH Trans 1
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Page 25
For Discount Troy Bilt Parts Call 606-678-9623 or 606-561-4983
17AA5ABP766 RZT 50 (2006) Page 25 of 25
Transmission
Ref # Part Number Qty Description S/P/F
48 N/A Kit, Fan-Pulley, order individual parts 1
49 HG-71365 Kit, Brake Arm RH Trans. 1
49 HG-71356 Kit, Brake Arm LH Trans. 1
50 HG-71143 Kit, Center Section-Filter RH Trans. 1
50 HG-71142 Kit, Center Section-Filter LH Trans 1
51 N/A Kit, Bypass Arm, order individual parts 1
52 HG-70911 Kit, Filter 1 S
53 HG-51635 Disc, Brake Cog 1 /P
54 HG-52315 Fan, 7" 10 Blade 1
55 HG-50302 Pulley, 4.5 1 /P
56 HG-51244 Nut, Hex Insert Lock, 1/2-20 1 S
57 HG-50752 Screw, Hex Wash. Hd. Tapp 1/4-20 3 /P
58 HG-70921 Cap, Vent Assembly 1 /P
59 HG-50591 Fitting, Sraight, 9/6-18 1 /P
60 HG-50590 Clamp, Pinch 1
61 HG-51616 Screw, Hx Patch, 5/16-24 x 1.0 1 S
62 HG-51947 Bushing, Pilot, 1.125 1
63 HG-51948 Washer, Plastic 2
64 HG-51950 Washer, 1.5 x .34 x .062 1
65 HG-51399 Spring, Extension 1 S
66 HG-71095 Kit, Return Assembly RH 1
67 N/A Hose, .5 x 15.0, order kit 1
68 HG-71308 Kit, Breather Assembly 1 /P
HG-70853 Kit, Seal 1 /P
HG-50928 Sealant Tube, 10.3 oz 1 /P
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