Troy Bilt 21B-643D766 Tuffy CRT Roto-Tiller (2006) Parts Diagrams

There are (133) parts used by this model.

• Found on Diagram: .Quick Reference
  
• 

  634042010911

  NO LONGER AVAILABLE

  No Longer Available

  Options Add to Cart
• Found on Diagram: Drive and Wheels
  
• 

  7360159

  WASHER FL

  $3.75

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• 

  75604198A

  PULLEY ENGINE

  $49.50

  Options Add to Cart
• 

  65604005A

  PULLEY ASM TRANS T

  Options Add to Cart
• 

  75604169

  PULLEY REV IDLER

  $22.45

  Options Add to Cart
• 

  786040950637

  GUARD TRNS PULLEY

  $30.27

  Options Add to Cart
• 

  95404090

  Drive Belt

  Options Add to Cart
• 

  95404091

  V Belt

  Options Add to Cart
• 

  73105268

  COVER BELT

  $34.87

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• 

  1916724

  NO LONGER AVAILABLE

  No Longer Available

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• 

  73204081

  GUIDE BELT

  $9.18

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• 

  1916726

  NO LONGER AVAILABLE

  No Longer Available

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• 

  1916794001

  NO LONGER AVAILABLE

  No Longer Available

  Options Add to Cart
• 

  1916795001

  NO LONGER AVAILABLE

  No Longer Available

  Options Add to Cart
• 

  786040700637

  BRACKET BELT COVER

  $40.84

  Options Add to Cart
• 

  74804087A

  Idler Pivot Spacer

  $5.72

  Options Add to Cart
• 

  78604276

  IDLER ARM REVERSE

  $14.59

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• 

  786042750637

  ARM IDLER FORWARD

  $31.84

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• 

  7100672

  SCREW HEX 5/16 24

  Options Add to Cart
• 

  7100237

  SCREW HEX 5/16 24

  $3.97

  Options Add to Cart
• 

  7100376

  Hex Screw

  $3.69

  Options Add to Cart
• 

  71004049

  SCREW HEX FLANGE 5

  $4.15

  Options Add to Cart
• 

  7100347

  Hex Screw

  Options Add to Cart
• 

  7100599

  Screw

  $3.90

  Options Add to Cart
• 

  7103103

  Bolt

  $4.06

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• 

  7123000

  NUT LOCK 3/8 16

  $3.93

  Options Add to Cart
• 

  7123009

  5/16 NUT HEX CTR L

  $6.05

  Options Add to Cart
• 

  9360119

  Lock Washer

  $4.34

  Options Add to Cart
• 

  7363050

  WASHER FL

  Options Add to Cart
• 

  7363090

  WASHER FL

  $5.84

  Options Add to Cart
• 

  7360452

  Bell Washer

  $4.08

  Options Add to Cart
• 

  7100459A

  Hex Screw

  Options Add to Cart
• 

  GW50027

  WASHER

  $5.99

  Options Add to Cart
• 

  73204085

  SPRING RETURN

  $12.51

  Options Add to Cart
• 

  786041070637

  NO LONGER AVAILABLE

  No Longer Available

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• 

  75604170

  Forward Idler Pulley

  $31.58

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• 

  9140105

  KEY SQ 3/16 X 1.00

  $3.25

  Options Add to Cart
• 

  7363078

  WASHER FL 344X1.00

  $3.99

  Options Add to Cart
• 

  73604193

  WASHER BELVL .8

  $5.99

  Options Add to Cart
• 

  7100395

  SCREW HEX 5/16 18

  Options Add to Cart
• 

  71204063

  5/16 Flange Nut

  $3.60

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• 

  7500258

  SPACER

  $10.09

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• 

  7360315

  WASHER FL

  Options Add to Cart
• 

  7360242

  Bell Washer

  $3.78

  Options Add to Cart
• 

  749041930637

  BUMPER

  $48.05

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• 

  7260201

  NUT PUSH

  $6.06

  Options Add to Cart
• 

  7140143A

  Click Pin

  $5.73

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• 

  73404188

  NO LONGER AVAILABLE

  No Longer Available

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• 

  73404161

  NO LONGER AVAILABLE

  Options Add to Cart
• 

  71404048

  Cotter Pin

  $7.11

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• 

  71104126

  Clevis Pin

  $3.67

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• 

  7100888

  Special Hex Screw

  $3.90

  Options Add to Cart
• Found on Diagram: Drive Shaft
  
• 

  71604102

  Retaining Ring

  $3.89

  Options Add to Cart
• 

  9410107

  Roller Bearing

  Options Add to Cart
• 

  73604304

  Flat Washer

  $3.90

  Options Add to Cart
• 

  91104110

  SHAFT DRIVE

  $150.91

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• 

  73604308

  Flat Washer
  Use as required to obtain between .005" and .015" allowable end-play.

  $3.89

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• 

  71604102

  Retaining Ring

  $3.89

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• Found on Diagram: General Assembly
  
• 

  68604076A0638

  Shield
  (model 643C)

  Options Add to Cart
• 

  7100395

  SCREW HEX 5/16 18

  $4.12

  Options Add to Cart
• 

  7100597

  Hex Screw

  $3.69

  Options Add to Cart
• 

  7100599

  Screw

  $3.90

  Options Add to Cart
• 

  7100874

  SCREW HEX 5/16 18

  $6.06

  Options Add to Cart
• 

  7103008

  Screw

  $3.80

  Options Add to Cart
• 

  71204063

  5/16 Flange Nut

  $3.60

  Options Add to Cart
• 

  71204064

  Nut

  $3.67

  Options Add to Cart
• 

  7150108

  PIN SPRING SPIR 1/

  $4.42

  Options Add to Cart
• 

  73204320

  SPRING TORSION

  $3.89

  Options Add to Cart
• 

  7360275

  WASHER FL

  $6.05

  Options Add to Cart
• 

  75004149

  NO LONGER AVAILABLE

  No Longer Available

  Options Add to Cart
• 

  GW55088

  NO LONGER AVAILABLE

  No Longer Available

  Options Add to Cart
• 

  75004556

  SPACER SPLIT

  $6.06

  Options Add to Cart
• 

  786040920638

  ARM REV STOP

  $24.40

  Options Add to Cart
• 

  786040980638

  BRACKET SUPT

  $28.97

  Options Add to Cart
• 

  786041040638

  BAR DEPTH DRAG

  $32.46

  Options Add to Cart
• 

  786041910637

  NO LONGER AVAILABLE

  No Longer Available

  Options Add to Cart
• 

  786042900638

  BRACKET HOOD LH

  $27.88

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• 

  786042910638

  NO LONGER AVAILABLE

  No Longer Available

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• 

  78604292A0638

  BAR DEPTH ADJUST

  $59.34

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• 

  7100106

  SCREW HEX 1/4 20 X

  $3.69

  Options Add to Cart
• 

  71004163

  Screw (No Longer Available)

  No Longer Available

  Options Add to Cart
• 

  7123009

  5/16 NUT HEX CTR L

  $6.05

  Options Add to Cart
• 

  7120121

  HEX NUT

  $3.78

  Options Add to Cart
• 

  7120291

  1/4 20 LOCK NUT

  $3.97

  Options Add to Cart
• 

  73204185

  Forward Clutch Spring

  $6.27

  Options Add to Cart
• 

  94604208

  Drive Cable

  $35.87

  Options Add to Cart
• 

  94604058

  Reverse Control Cable
  (models 643B & 645A)

  $56.66

  Options Add to Cart
• 

  1916106001

  BAIL FORWARD CLUTC

  $45.75

  Options Add to Cart
• 

  749040840638

  Upper Handle (No Longer Available) (No Longer Available)

  No Longer Available

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• 

  749047420638

  HANDLE LOWER TILLE

  $49.16

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• 

  74904106A

  USE 749-04106A

  $39.62

  Options Add to Cart
• 

  78604040

  USE 786-04040
  (models 643B & 645A)

  $11.53

  Options Add to Cart
• 

  786041880638

  BRKT HANDLE SUPT

  $15.57

  Options Add to Cart
• 

  786042000638

  PANEL HANDLE

  $24.98

  Options Add to Cart
• 

  7100216

  SCREW HEX 3/8 16 X

  $3.97

  Options Add to Cart
• 

  7100805A

  SCREW HEX CAP

  $3.78

  Options Add to Cart
• 

  7123000

  NUT LOCK 3/8 16

  $3.93

  Options Add to Cart
• 

  9360119

  Lock Washer

  $4.34

  Options Add to Cart
• 

  7250157

  TIE CABLE 7

  $3.48

  Options Add to Cart
• 

  7363050

  WASHER FL

  $3.93

  Options Add to Cart
• 

  71204065

  Flange Lock Nut

  $3.71

  Options Add to Cart
• 

  7100347

  Hex Screw

  $4.43

  Options Add to Cart
• 

  7100514

  Hex Screw

  $3.82

  Options Add to Cart
• 

  71004048

  SCREW HHFLG 5/16

  $4.22

  Options Add to Cart
• 

  742042260637

  Right Hand Bolo Tine
  See Tine Chart

  $16.11

  Options Add to Cart
• 

  742042270637

  Left Hand Bolo Tine
  See Tine Chart

  $16.11

  Options Add to Cart
• 

  686050080637

  HOLDER TINE

  Options Add to Cart
• 

  1916106001

  BAIL FORWARD CLUTC

  $45.75

  Options Add to Cart
• Found on Diagram: Tine Chart
  
• 

  1901118A

  Bolo Tine Kit (No Longer Available)

  No Longer Available

  Options Add to Cart
• Found on Diagram: Transmission
  
• 

  71604104

  External Retaining Ring

  $3.89

  Options Add to Cart
• 

  73604257

  Flat Washer

  Options Add to Cart
• 

  94104300

  Bushing

  $15.40

  Options Add to Cart
• 

  75305576

  NO LONGER AVAILABLE

  Options Add to Cart
• 

  71404059

  KEY HI PRO .25 X 1

  $5.99

  Options Add to Cart
• 

  73604310

  Flat Washer

  $3.99

  Options Add to Cart
• 

  91704380

  Gear Worm 61T

  $147.98

  Options Add to Cart
• 

  91104078

  Tiller Tine Shaft

  $125.80

  Options Add to Cart
• 

  GW1104

  Woodruff Key

  $8.40

  Options Add to Cart
• 

  91704381

  Tiller Shaft Worm Gear

  $129.20

  Options Add to Cart
• Found on Diagram: Transmission Housing
  
• 

  73704202

  PLUG PIPE 3/8 NPT

  $6.06

  Options Add to Cart
• 

  71004049

  SCREW HEX FLANGE 5

  $4.15

  Options Add to Cart
• 

  9360119

  Lock Washer

  $4.34

  Options Add to Cart
• 

  1916109001

  NO LONGER AVAILABLE

  No Longer Available

  Options Add to Cart
• 

  78604359

  COVER TRANS HOUSIN

  $22.05

  Options Add to Cart
• 

  92104229

  Housing Cover Gasket

  $6.10

  Options Add to Cart
• 

  92104030

  Oil Seal

  $11.43

  Options Add to Cart
• 

  92104031

  Oil Seal

  Options Add to Cart
• 

  91904013

  NO LONGER AVAILABLE

  No Longer Available

  Options Add to Cart
• 

  92104036

  Oil Seal

  $17.50

  Options Add to Cart
• 

  9363008

  WASHER FL.344
  Included with transmission when purchased as an assembly only. Remove and discard when installing the transmission on tiller

  $6.30

  Options Add to Cart
• 

  91804435

  COVER BEARING

  $20.37

  Options Add to Cart
• 

  71004048

  SCREW HHFLG 5/16

  $4.22

  Options Add to Cart
• 

  7103008

  Screw

  $3.80

  Options Add to Cart