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Chambersburg, PA 17202 US
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Troy-Bilt 21B-643B766 Super Bronco CRT Roto-Tiller (2006) Transmission

Change Assembly
Diagrams Shown are for U.S. Models

Transmission

Prices shown are USD

Ref#
 Part
Price
Qty
 
2
Retainer, Snap Ring
$4.06
3
Shim, 0.062" thick Use as required to obtain between .005" and .030" allowable end-play.
$4.06
3
Shim, 0.030" thick Use as required to obtain between .005" and .030" allowable end-play.
$5.99
3
Shim, 0.015" thick Use as required to obtain between .005" and .030" allowable end-play.
$5.99
3
Shim, 0.010" thick Use as required to obtain between .005" and .030" allowable end-play.
$3.66
3
Shim, 0.005" thick
$3.66
4
Bronze Bushing
$14.73
5
AXLE SHAFT (model 643C)
5
SERVICE KIT (model 643B)
$313.20
5
WHEEL SHAFT (model 645A)
5
SERVICE KIT (model 643D)
6
Key, Hi-Pro, 1/4 x 1
$5.99
7
$4.16
8
Worm Gear, Wheel Shaft
$128.68
9
Tiller Shaft
$109.39
10
Woodruff Key
$8.40
11
Worm Gear, Tiller Shaft
$112.35