Models > 21B-643D766

21B-643D766 Troy-Bilt Tiller - Overview

Models starting with 21B-643D766

Keep searches simple, eg. "belt" or "pump".
Belt-Forward Drive – Part Number: 954-04090
Belt-Forward Drive
★★★★★
★★★★★
(1)
PartSelect #: PS10035467
Manufacturer #: 954-04090
The Forward Drive Belt is a 12.5-inch black, rubber belt, sold individually. Installation of this manufacturer-certified part is rated as "Easy" by customers and will require pliers, a socket set, and...
$21.43
  In Stock
Belt-Reverse Drive – Part Number: 954-04091
Belt-Reverse Drive
PartSelect #: PS10035469
Manufacturer #: 954-04091
The Reverse Drive Belt is a 13 x 3/8 inch is a black rubber belt which attaches to the transmission and engine drive pulleys. This belt allows you to drive the unit backwards. If it's broken due to fa...
$20.31
  In Stock
Oil Seal-Wheel Shaft – Part Number: 921-04031
Oil Seal-Wheel Shaft
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★★★★★
(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 ...
$11.04
  In Stock
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 ...
$4.95
  In Stock
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
Air Valve – Part Number: 934-0255
Air Valve
PartSelect #: PS9311038
Manufacturer #: 934-0255
$4.41
  In Stock
Cable-Reverse Control – Part Number: 946-04058
Cable-Reverse Control
★★★★★
★★★★★
(2)
PartSelect #: PS10033922
Manufacturer #: 946-04058
$64.68
  In Stock
Oil Seal (OD 1- 3/4" ID 3/4") – Part Number: 921-04030
Oil Seal (OD 1- 3/4" ID 3/4")
PartSelect #: PS9161264
Manufacturer #: 921-04030
This Oil Seal has an OD of 1-3/4" and ID of 3/4". Installation of this OEM seal requires a screwdriver, pliers, socket set and wrench set, and is rated as being "Medium" difficulty by customers. This ...
$13.05
  In Stock
Spring, Forward Clutch – Part Number: 732-04185
Spring, Forward Clutch
PartSelect #: PS9454908
Manufacturer #: 732-04185
  No Longer Available
Screw, #10-24 X 2 – Part Number: 710-04163
Screw, #10-24 X 2
PartSelect #: PS9453176
Manufacturer #: 710-04163
  No Longer Available
Hex Bolt 5/16-24 X 1.00" Lg. – Part Number: 710-0888
Hex Bolt 5/16-24 X 1.00" Lg.
PartSelect #: PS9088315
Manufacturer #: 710-0888
$4.44
  In Stock
Shield – Part Number: 686-04076A-0638
Shield
PartSelect #: PS9996993
Manufacturer #: 686-04076A-0638
$90.24
  In Stock
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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