Troy-Bilt 521 Operator's Manual page 14

Models 521 and 721
5
Ref. No. Part No.
1. 629-0071
2. 710-0157
3. 710-0409
4.
710-0502A
5. 710-0751
6. 710-1003
7. 710-3013
8. 712-3006
9. 719-0581
10.
726-0205
11. 731-2825
13. 736-0119
24
18
10
15
17
8
6
23
4
Description
Extension Cord
Hex Bolt 5/16-24 x 0.75"
Hex Bolt 5/16-24 x 1.75"
TT Sems Screw
Hex Screw 1/4-20 x 0.620"
B Screw #10-16 x 0.625"
Hex Screw 1/4-20 x 0.50"
Hex Nut 1/4-20
Spacer
Hose Clamp
Choke Knob
Lock Washer
19
16
15
7
11
9
25
22
Ref. No. Part No.
14. 736-0242
15. 736-0329
16. 741-0475
17. 751-0535
18. 751-0540A
19. 751-0603
20. 754-0101A
21. 756-0416B
22. 756-0475
23. 784-0322
24. 784-0323
25. 784-0374
14
1
Engine is for reference only
and may not resemble the
engine on your snow thrower.
13
3
21
13
14
3
20
Description
Beleville Washer
Lock Washer
Plastic Bushing
Fuel Line Hose
Gas Tank
Fuel Cap
V-Belt
V-Pulley Half
Pulley
Engine Mount
Support Bracket
Support Plate: Engine Mount
2