Troy-Bilt 21A 665B766 5.5HP FRT Roto Tiller Parts manual (2006)
For Discount Troy Bilt Parts Call 606-678-9623 or 606-561-4983
21A-665B766 5.5HP FRT Roto-Tiller (2006) Page 1 of 19
Bolo Tines, Wheels
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21A-665B766 5.5HP FRT Roto-Tiller (2006) Page 2 of 19
Bolo Tines, Wheels
Ref # Part Number Qty DescriptionS/P/F
1 710-0514 Hex Hd. Screw, 3/8-16 x 1 (Specify Grade 5 if
2 742-04119 Bolo Tine-single. Left hand tine8 S
3 712-3000 Hex Locknut, 3/8-1618 S
4 710-0606 Hd. Screw, 1/4-20 x 1.52 /P
5 710-3096 Hex Hd. Screw, 3/8-16 x 2, Grade 82 /P
6 712-04064 Hex Locknut, Flange, 1/4-202 /P
7 742-04118 Bolo Tine-single. Right hand tine8 S
8 1902154 Tine Holder. For left and right sides2 S
9 634-04232 Wheel Assembly, 13 x 5 x 62 S
1901118 Bolo Tine Replacement Set (Includes 8 each
16 /P
ordering part locally.)
1 S
right hand and left hand tines, and 16 each
Refs. 1 and 3)
GW-2475-1 Custom Tilling Bolo Tine, Left hand tine. See
GW-2475-2 Custom Tilling Bolo Tine, Right hand tine.
GW-10802 Custom Tilling Bolo Tine Replacement Set
8 S
note
8 S
See note
1 /P/F
(Incl. 8 each right hand left hand custom
tines, and 16 each of Refs 1 and 3) See note
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21A-665B766 5.5HP FRT Roto-Tiller (2006) Page 3 of 19
Bumper Attachment
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For Discount Troy Bilt Parts Call 606-678-9623 or 606-561-4983
21A-665B766 5.5HP FRT Roto-Tiller (2006) Page 4 of 19
Bumper Attachment
Ref # Part Number Qty DescriptionS/P/F
1 749-04193 Bumper1 S
2 712-04063 Lock Nut-Hex, Nylon, 5/16-18 (specify Grade
3 710-0395 Screw-hex hd., 5/16-18 x 2 1/44 /P
4 736-0119 Lockwasher-5/164 S
5 712-04063 Lock Nut-Hex, Nylon, 5/16-18 (specify Grade
4 /P
5 if ordering part locally)
4 /P
5 if ordering part locally)
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21A-665B766 5.5HP FRT Roto-Tiller (2006) Page 5 of 19
Drive Shaft, Input Pinion Shaft and Gear Assemblies
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21A-665B766 5.5HP FRT Roto-Tiller (2006) Page 6 of 19
Drive Shaft, Input Pinion Shaft and Gear Assemblies
Ref # Part Number Qty DescriptionS/P/F
1 GW-1714 Bearing, Tapered Roller with Race1 S
2 GW-20718 Spur Gear1 S
3 GW-9301 Key, 3/16 sq x 11 S
4 GW-20912 Main Drive ShaftA/R F
5 GW-1224-1 Shim, Rear Bearing Cap, .010"A/R S/F
5 GW-1224-2 Shim, same as above, but .030" thickA/R S/F
5 GW-1224-3 Shim, same as above, but .005 thickA/R S/F
5 GW-1325C Shim Set (Incl. two 1224-2 and one
A/R /P
GW-1224-3)
6 710-04458 Hex Hd. Screw, 5/16-24 x 1-1/8 (Specify
7 736-04193 Washer, Disc Spring (concave surface faces
8 714-04042 Key, 3/16 sq x 1-1/21 S
9 1916522 Transmission Drive Pulley1 S
10 736-04079 Support Washer1 /P
11 721-04044 Oil Seal, Input Pinion Shaft1 S
12 1113527 Retaining Ring (external)1 S
13 GW-9953 Thrust Washer2 /P
14 GW-9428 Bushing1 /P
15 GW-9677 Set Screw, 5/16-18 x 3/8 (Specify GRADE 5
16 GW-20791 Input Pinion (steel shaft)1 /P
17 GW-20792 Input Pinion Gear1 S
18 GW-9093 Retaining Ring (external)1 /P
19 GW-20799 Pinion Assy. (Incl. One each refs. 16, 17 &
20 GW-9517 Retaining Ring (internal)1 S
1 S
GRADE 5 if ordering part locally)
1 /P
pulley)
1 /P
if ordering part locally)
A/R /P
18)
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