Models > 21A-665B766

21A-665B766 (2009) Troy-Bilt Tiller - Overview

Sections of the 21A-665B766

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Page A Diagram and Parts List for 2009 Troy-Bilt Tiller
Page A
Page B Diagram and Parts List for 2009 Troy-Bilt Tiller
Page B
Page C Diagram and Parts List for 2009 Troy-Bilt Tiller
Page C
Page D Diagram and Parts List for 2009 Troy-Bilt Tiller
Page D
Page E Diagram and Parts List for 2009 Troy-Bilt Tiller
Page E
Keep searches simple, eg. "belt" or "pump".
TT Screw 1/4-20 x 0.5 – Part Number: 710-0599
TT Screw 1/4-20 x 0.5
PartSelect #: PS9298768
Manufacturer #: 710-0599
$4.99
  In Stock
Order within the next 9 hrs and your part ships today!
Nut, Flange Lock, 5/16-18, Grf – Part Number: 712-04063
Nut, Flange Lock, 5/16-18, Grf
PartSelect #: PS9092936
Manufacturer #: 712-04063
This nut is a manufacturer-approved replacement part for various lawn and garden equipment. It is sold individually, not as part of a kit or assembly. Also referred to as a Lock Nut, it is resistant t...
$3.99
  In Stock
Order within the next 9 hrs and your part ships today!
Nut, Flange Lock, 3/8-16, Grf – Part Number: 712-04065
Nut, Flange Lock, 3/8-16, Grf
PartSelect #: PS9095080
Manufacturer #: 712-04065
Designed for use in various models of lawn and garden equipment, this part is not sold as part of a kit or assembly. It is made of metal, is gold in color, and is sold individually. This part may also...
$3.99
  In Stock
Order within the next 9 hrs and your part ships today!
Nut, Flange Lock, 1/4-20, Grf – Part Number: 712-04064
Nut, Flange Lock, 1/4-20, Grf
★★★★★
★★★★★
(1)
PartSelect #: PS9299574
Manufacturer #: 712-04064
Also referred to as a Lock Nut or Flange Lock, this nut is designed for use with various lawn and garden equipment. The purpose of this part is to hold parts in place while resisting loosening when pr...
$3.99
  In Stock
Order within the next 9 hrs and your part ships today!
Air Filter – Part Number: BS-491588S
Air Filter
PartSelect #: PS9183894
Manufacturer #: BS-491588S
$17.39
  In Stock
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Oil Seal-Wheel Shaft – Part Number: 921-04031
Oil Seal-Wheel Shaft
★★★★★
★★★★★
(1)
PartSelect #: PS10027983
Manufacturer #: 921-04031
This OEM Wheel Shaft Oil Seal is a black rubber part which attaches to the drive shaft to prevent leaks between the wheel shaft and transmission case. Installation is rated as "Medium" difficulty and ...
$10.48
  In Stock
Order within the next 9 hrs and your part ships today!
Washer-Lock 5/16 – Part Number: 936-0119
Washer-Lock 5/16
PartSelect #: PS9311087
Manufacturer #: 936-0119
This Washer-Lock 5/16 is a silver, metal part that is sold individually and comes direct from the manufacturer. With a 5/16 Inch Interior Diameter and 1/2 Inch Outside Diameter, it is used to prevent ...
$4.99
  In Stock
Order within the next 9 hrs and your part ships today!
Seal-Oil, Tiller Tine Shaft – Part Number: 921-04035
Seal-Oil, Tiller Tine Shaft
PartSelect #: PS9460854
Manufacturer #: 921-04035
  No Longer Available
Forward Idler Pulley – Part Number: 756-04170
Forward Idler Pulley
★★★★★
★★★★★
(1)
PartSelect #: PS9457633
Manufacturer #: 756-04170
This OEM Forward Idler Pulley attaches to the pivot bracket to allow the forward belt to idle when not in forward motion. If broken, the machine will no longer be able to propel forward, and the part ...
  No Longer Available
Spark Plug – Part Number: 759-3336
Spark Plug
PartSelect #: PS9123562
Manufacturer #: 759-3336
$12.04
  In Stock
Order within the next 9 hrs and your part ships today!
Knob-Depth Regulator – Part Number: GW-9119
Knob-Depth Regulator
PartSelect #: PS9463737
Manufacturer #: GW-9119
  No Longer Available
Bolo Tine-Single (Left) – Part Number: 742-04223-0637
Bolo Tine-Single (Left)
PartSelect #: PS9455666
Manufacturer #: 742-04223-0637
  No Longer Available
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Questions And Answers for 21A-665B766

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Keep searches simple. Use keywords, e.g. "leaking", "pump", "broken" or "fit".
Bearing seized
Pull belt cover, 2 nuts
Remove tensioner, 1 nut
Slide old tensioner off and replace
Parts Used:
Forward Idler Pulley
  • Gary from ELGIN, OK
  • Difficulty Level:
    Very Easy
  • Total Repair Time:
    Less than 15 mins
  • Tools:
    Socket set
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1inch shaft and wheels have to be removed first.
Wheels had to be cut off of the axle in order to get to the seals. The center of wheel is 3in wide and axle isn't tappered on troy bilt pony model wheels where rusted on.
Parts Used:
Seal-Oil, Tiller Tine Shaft
  • Norman from RAINIER, WA
  • Difficulty Level:
    A Bit Difficult
  • Total Repair Time:
    1- 2 hours
  • Tools:
    Pliers, Socket set, Wrench set
1 person found this instruction helpful.
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