Troy-Bilt 521 Snow Blower User Manual


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