Medium
More than 2 hours
This is an original Craftsman replacement part manufactured for use with paint sprayers, tillers, spreaders, and yard vacuums. The special knob is commonly used as a wing nut, and its application can vary depending on the model of equipment. This knob is available as an individual replacement part, please see model diagram for part location and usage.
Knob 712-0421
OEM part for: Craftsman, Yard Machines, MTD, Troy-Bilt
Part Number: 712-0421
$6.61
In Stock
Order within the next 12 hours and your part ships today! 
Compatibility
This part will fit the following 144 machines
Craftsman
486245313 15 Gallon 35 Psi Sprayer View Diagrams & Manuals
486245332 Sprayer View Diagrams & Manuals
486245333 Power Sprayer View Diagrams & Manuals
486245312 15 Gallon 35 Psi Sprayer View Diagrams & Manuals
486245311 15 Gallon Sprayer View Diagrams & Manuals
486245331 25 Gallon 70 Psi Sprayer View Diagrams & Manuals
486245321 15 Gallon 70 Psi Sprayer View Diagrams & Manuals
48624532 Power Sprayer View Diagrams & Manuals
48624531 Power Sprayer View Diagrams & Manuals
48624533 Power Sprayer View Diagrams & Manuals
48624331 32" Spiker Spreader View Diagrams & Manuals
24729930 Rear Tine Tiller View Diagrams & Manuals
247799640 Chipper Vac View Diagrams & Manuals
24777763 Chipper/Shredder View Diagrams & Manuals
247799620 Chipper/Shredder View Diagrams & Manuals
247799630 Chipper/Shredder View Diagrams & Manuals
48624515 Chipper/Shredder View Diagrams & Manuals
48624516 Chipper/Shredder View Diagrams & Manuals
48624517 Chipper/Shredder View Diagrams & Manuals
48624717 Chipper/Shredder View Diagrams & Manuals
48625013 Chipper/Shredder View Diagrams & Manuals
48624229 Yard Vacuum View Diagrams & Manuals
486242291 Yard Vacuum View Diagrams & Manuals
486245041 Yard Vacuum View Diagrams & Manuals
486245042 Yard Vacuum View Diagrams & Manuals
48624506 Yard Vacuum View Diagrams & Manuals
48624507 Yard Vacuum View Diagrams & Manuals
486247070 Yard Vacuum View Diagrams & Manuals
486247071 Yard Vacuum View Diagrams & Manuals
486247072 Yard Vacuum View Diagrams & Manuals
48625012 Yard Vacuum View Diagrams & Manuals
24723000 Tiller View Diagrams & Manuals
247299301 Tiller View Diagrams & Manuals
24729931 Tiller View Diagrams & Manuals
24729932 Tiller View Diagrams & Manuals
247299321 Tiller View Diagrams & Manuals
24729933 Tiller View Diagrams & Manuals
247299320 Rear Tiller View Diagrams & Manuals
48624294 Tractor Attachments View Diagrams & Manuals
48624504 Vac System View Diagrams & Manuals
486245316 15 Gallon Sprayer View Diagrams & Manuals
Yard Machines
216-410-700 (1996) Tiller View Diagrams & Manuals
21A-410-000 (1997) Tiller View Diagrams & Manuals
21A-410-062 (1997) Tiller View Diagrams & Manuals
21A-410-118 (1997) Tiller View Diagrams & Manuals
21A-410-129 (1997) Tiller View Diagrams & Manuals
21A-410-136 (1997) Tiller View Diagrams & Manuals
21A-410-302 (1997) Tiller View Diagrams & Manuals
21A-410-372 (1997) Tiller View Diagrams & Manuals
21A-410-700 (1997) Tiller View Diagrams & Manuals
21A-410-729 (1997) Tiller View Diagrams & Manuals
21A-410-736 (1997) Tiller View Diagrams & Manuals
21A-422-129 (1997) Tiller View Diagrams & Manuals
21A-430-000 (1997) Tiller View Diagrams & Manuals
21A-430-062 (1997) Tiller View Diagrams & Manuals
21A-430-700 (1997) Tiller View Diagrams & Manuals
21A-410-000 (1998) Tiller View Diagrams & Manuals
21A-410-014 (1998) Tiller View Diagrams & Manuals
21A-410-062 (1998) Tiller View Diagrams & Manuals
21A-415-118 (1998) Tiller View Diagrams & Manuals
21A-415-132 (1998) Tiller View Diagrams & Manuals
21A-422B129 (1998) Tiller View Diagrams & Manuals
21A-430-000 (1998) Tiller View Diagrams & Manuals
21A-430-352 (1998) Tiller View Diagrams & Manuals
21A-410-000 (1999) Tiller View Diagrams & Manuals
21A-410-062 (1999) Tiller View Diagrams & Manuals
21A-410A000 (1999) Tiller View Diagrams & Manuals
21A-412A372 (1999) Tiller View Diagrams & Manuals
21A-415-136 (1999) Tiller View Diagrams & Manuals
21A-415A132 (1999) Tiller View Diagrams & Manuals
21A-415A136 (1999) Tiller View Diagrams & Manuals
21A-417-118 (1999) Tiller View Diagrams & Manuals
21A-417A118 (1999) Tiller View Diagrams & Manuals
21A-422-129 (1999) Tiller View Diagrams & Manuals
21A-422B129 (1999) Tiller View Diagrams & Manuals
21A-452B352 (1999) Tiller View Diagrams & Manuals
21A-457A000 (1999) Tiller View Diagrams & Manuals
21A-457B062 (1999) Tiller View Diagrams & Manuals
21A-412A000 (2000) Tiller View Diagrams & Manuals
21A-415A136 (2000) Tiller View Diagrams & Manuals
21A-417-118 (2000) Tiller View Diagrams & Manuals
21A-417A118 (2000) Tiller View Diagrams & Manuals
21A-422B129 (2000) Tiller View Diagrams & Manuals
21A-452B352 (2000) Tiller View Diagrams & Manuals
21A-457B062 (2000) Tiller View Diagrams & Manuals
21B-410A352 (2000) Tiller View Diagrams & Manuals
21B-452B352 (2000) Tiller View Diagrams & Manuals
21A-422B129 (2001) Tiller View Diagrams & Manuals
21A-457A000 (2001) Tiller View Diagrams & Manuals
21AA412A000 (2001) Tiller View Diagrams & Manuals
21AA412A352 (2001) Tiller View Diagrams & Manuals
21AB454A062 (2001) Tiller View Diagrams & Manuals
21AA412A000 (2002) Tiller View Diagrams & Manuals
21AA412A352 (2002) Tiller View Diagrams & Manuals
21AA453B000 (2002) Tiller View Diagrams & Manuals
21AB454A062 (2002) Tiller View Diagrams & Manuals
21AA412A000 (2003) Tiller View Diagrams & Manuals
21AA413A352 (2003) Tiller View Diagrams & Manuals
21AA453B000 (2003) Tiller View Diagrams & Manuals
21AA413B700 (2005) Tiller View Diagrams & Manuals
21AA414A752 (2005) Tiller View Diagrams & Manuals
21AA413H700 (2006) Tiller View Diagrams & Manuals
21AA413H729 (2006) Tiller View Diagrams & Manuals
21AA413H752 (2006) Tiller View Diagrams & Manuals
21BA413H700 (2006) Tiller View Diagrams & Manuals
21AA413H200 (2007) Tiller View Diagrams & Manuals
21AA413H252 (2007) Tiller View Diagrams & Manuals
21AA413J000 (2007) Tiller View Diagrams & Manuals
21AA413J052 (2007) Tiller View Diagrams & Manuals
21AA412A000 (2008) Tiller View Diagrams & Manuals
21AA412A052 (2008) Tiller View Diagrams & Manuals
21AA404B052 (2009) Tiller View Diagrams & Manuals
21AA404D200 (2012) Tiller View Diagrams & Manuals
21AA40M7700 (2012) Tiller View Diagrams & Manuals
21AA40M7752 (2012) Tiller View Diagrams & Manuals
21AA40M7752 (2014) Tiller View Diagrams & Manuals
21AA40M8700 (2014) Tiller View Diagrams & Manuals
21AA40M7752 (2015) Tiller View Diagrams & Manuals
21AA40M8700 (2015) Tiller View Diagrams & Manuals
21AA40M7752 (2016) Tiller View Diagrams & Manuals
400 (21AA40M8700)(2016) Tiller View Diagrams & Manuals
21AA40M7752 (2017) Tiller View Diagrams & Manuals
21AA40M8700 (2017) Tiller View Diagrams & Manuals
216-420-000 (1996) Tiller View Diagrams & Manuals
216-430-700 (1996) Tiller View Diagrams & Manuals
21AA40M1000 (2012) Tiller View Diagrams & Manuals
21AA404B000 (2009) Tiller View Diagrams & Manuals
21AA404D229 (2009) Tiller View Diagrams & Manuals
21AA40M1000 (2013) Tiller View Diagrams & Manuals
21AA40M7752 (2018) Tiller View Diagrams & Manuals
21AA40M8700 (2018) Tiller View Diagrams & Manuals
21AA40M8700 (400 Series)(2016) Tiller View Diagrams & Manuals
MTD
1629774 (216-410-352)(1996) ) Tiller View Diagrams & Manuals
7021249 (216-410-033)(1996) ) Tiller View Diagrams & Manuals
725-591 (216-410-129)(1996) ) Tiller View Diagrams & Manuals
725-591 (216-410-134)(1996) ) Tiller View Diagrams & Manuals
97597 (216-430-062)(1996) ) Tiller View Diagrams & Manuals
Troy-Bilt
21AB45M8766 (2021) Mustang Tiller View Diagrams & Manuals
21AB45M8766 (2022) Mustang Tiller View Diagrams & Manuals
24A-202J711 (CSV206)(2013) Chipper Shredder View Diagrams & Manuals
24A-202J766 (CSV206)(2012) Chipper Shredder View Diagrams & Manuals
24A-202J766 (CSV206)(2013) Chipper Shredder View Diagrams & Manuals
24A-202J766 (CSV206)(2014) Chipper Shredder View Diagrams & Manuals
24A-202J766 (CSV206)(2015) Chipper Shredder View Diagrams & Manuals
Show More Compatible Models
This item works with the following types of products:
- Paint Sprayer Parts
- Vacuum Parts
- Chipper / Shredder Parts
Questions & Answers ?
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Does this fit my product?Questions & Answers for Knob
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Customer Repair Instructions ?
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
Tiller would not shift to forward till range.
Donald - April 30, 2020
Tool Type
Cultivator
Difficulty
Medium
Time
More than 2 hours
Tools Used
Screwdriver, Pliers, Power Drill, Socket set, Wrench Set, Adjustable Wrench, Spray lube
Parts Used
This job might best be done by small engine repair tech as it requires complete disassembly to replace this part. Take a lot of pictures during tear down
1) remove engine, body panels, handle and controls.
2) remove wheels, tiller tines, counterweight and various small pieces, left with transmission
3) lay on right hand side. (Pulley side up) remove remaining bolts and carefully remove top half of gear housing. You can an the access shifter assembly. Replace and reassemble tiller. Be sure to grease gear and shifter assembly while apart.
1) remove engine, body panels, handle and controls.
2) remove wheels, tiller tines, counterweight and various small pieces, left with transmission
3) lay on right hand side. (Pulley side up) remove remaining bolts and carefully remove top half of gear housing. You can an the access shifter assembly. Replace and reassemble tiller. Be sure to grease gear and shifter assembly while apart.
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Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
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