MTD Trimmer Knobs
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MTD Trimmer Bump Head Knob
PartSelect Number PS9306452
Manufacturer Part Number 791-153066B
This genuine bump head knob assembly, sometimes known simply as the bump head, is black and approximately 2 inches long. Sold individually, this plastic part releases the cutting line. Over time, this part may break due to wear, and you will know it is broken because it will completely stop functioning.
A troubleshooting tip is to tap the part on theg round to see if the cutting line advances. This is an easy repair to make, and does not require any tools. You will need to look for the bump head attachment point on the bottom of the cutting head assembly.
Fixes these symptoms
- Cutting line does not come out
- See more...
MTD Trimmer Knob-wing 5/16-18
PartSelect Number PS9096073
Manufacturer Part Number 720-04124
This is a genuine OEM sourced replacement part designed for use with lawn mowers. This wing knob helps to secure upper and lower handles on a mower. It is made out of red plastic and it is sold individually. Please note carriage screw is sold separately.
MTD Trimmer Wing Knob
PartSelect Number PS9099155
Manufacturer Part Number 720-04122
This is an original Craftsman replacement part manufactured for use with lawn and garden equipment. The wing knob acts as a nut to fasten bolts. This wing knob is a versatile part that is used on lawnmowers, and snowblowers. The wing knob usually secures the bolt that fastens the upper and lower handles, please see model diagram for part location. The wing knob is sold individually.
MTD Trimmer Snow Blower Star Knob
PartSelect Number PS9109078
Manufacturer Part Number 720-04072A
This Star Knob, which may also be simply referred to as a Knob, is sourced directly from the manufacturer for use in lawn mowers and snow blowers. This part provides a quick-release for handles to fold down, and connect upper and lower handles. It is made of metal, is black, is not part of a kit or assembly, and is sold individually.
This part will need to be replaced if it has become cracked, worn, or damaged. The most common cause for this part needing to be replaced is worn or stripped threads no longer being able to grip. You will need a wrench or socket set and a torque wrench to complete this repair. It should be torqued to the manufacturer's recommendation.
Customers rate this repair as Easy.
MTD Trimmer Wiong Nut
PartSelect Number PS9096328
Manufacturer Part Number 720-0279
This is a type of handle with a knob-shaped grip used in a variety of lawn and garden tools with adjustable features. This genuine OEM part is 0.8 x 0.2 x 1 inches and is made from plastic. It is designed to connect and disconnect individual parts together without using any tools. By loosening the knob, you can easily adjust the height of the handles on your equipment to your liking as well as fold the handles for proper storage. Over time the handle knob can wear down or break. If this happens, you will need to unscrew the knob and remove the old rope guide before you can place the new knob on. Place the new rope guide in position, thread the eye of the cable through the eye hook loop and finally thread the new knob on to the shaft and turn it clockwise with your hands until it is secure.
MTD Trimmer Line Bump Feed Knob
PartSelect Number PS9137673
Manufacturer Part Number 791-180814B
This is a genuine OEM replacement part. it is sold individually. The Bump Head Knob Assembly is the part of the trimmer that you bump on the ground to advance the cutting line from the spool. Because of the abuse this part gets, it is advisable to order an extra one so you have on on hand. LEFT HAND THREADED
MTD Trimmer Bump Knob Lib Red
PartSelect Number PS16994470
Manufacturer Part Number 731-09582-A-49
This bump knob is a genuine OEM replacement designed for string trimmer heads that use a bump-feed line advancement system, allowing additional cutting line to be released when the head is tapped on the ground. Molded from durable plastic in a distinctive red finish, it restores smooth, reliable line feeding and proper head operation when the original knob is cracked, worn, or no longer engaging correctly. Easy to install without special tools, it helps prevent line jams and interruptions, ensuring consistent trimming performance and efficient operation during regular use.
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