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TB21EC
TB21EC Troy-Bilt Trimmer
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$45.02
A carburetor basically consists of an open pipe through which the air passes into the inlet manifold of the engine. The pipe is in the form of a Venturi: it narrows in section and then widens again, ...
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$18.38
This bump knob assembly fits lawn and gardening tools, usually trimmers. This part bumps on the ground to advance the cutting line from the spool. With time and use, this part can wear out easily. It ...
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$10.83
This is a genuine OEM replacement throttle trigger (red). The throttle trigger is responsible for managing the speed of the engine. The throttle cable attaches to the trigger, which connects to the th...
On Order
$28.55
This spool is for line trimmers.
Spool houses the cutting line and fits inside the cutting head to cut grass and weeds.
Wear work gloves to protect your hands when installing this part.
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Order now and your part arrives by Aug 13
$33.95
Genuine OEM replacement kit used on Gas Trimmers and Tillers. This part includes: Clutch Drum, Clutch, Clutch Washer and the Screw which has a left-handed thread. A centrifugal clutch is a part that u...
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$15.64
Genuine OEM replacement part, this item is sold individually. This spring is used on all of the trimmers listed below. It is installed between the inner reel and the outer spool assembly. Its purpose...
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$6.51
This is an authentic Craftsman replacement part that has been sourced from the original manufacturer to be used with trimmers and blowers. The gasket is used to seal the connection between the carbure...
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$6.51
This is a manufacturer approved O-Ring designed for lawn and garden equipment. This is the O-Ring that provides an Air Tight seal between Carburetor and Cylinder Head. If doing maintenance on carburet...
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$6.51
This air filter is an original sourced directly from Craftsman. The filters purpose is to keep dirt, dust and other contaminants from entering the carburetor and engine. You can clean this foam filter...
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$29.03
This is a genuine part that is supplied by the original manufacturer for use with Craftsman trimmers. The fuel tank stores the gasoline used to power the trimmer. This part is made of plastic and is s...
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Order now and your part arrives by Aug 13
$102.90
This is a genuine OEM sourced replacement part designed for use with string trimmers. This item is made out of metal and it is sold individually. It is the upper shaft that is attached to the motor. ...
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Order now and your part arrives by Aug 13
This is a Genuine OEM replacement part used on specific Gas Trimmers. This Aircleaner Cover is made out of Plastic with Metal Bushings. This Assembly includes Two (2) Metal Screws used to attach it. T...
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Common Problems and Symptoms for TB21EC
Viewing 4 of 4Will Not Start
Fixed by these parts
How to fix it
Engine stops after a few seconds or minutes
Fixed by these parts
How to fix it
Cutting line does not come out
Fixed by these parts
How to fix it
Engine revs but trimmer head will not turn
Fixed by these parts
How to fix it
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string trimmer would not start
emptied fuel from tank. pulled off the 2 fuel lines from the carburetor.opened the air cleaner door. removed the 2 torque screws that hold on the carburetor. removed the carburetor and air cleaner gasket. installed new carburetor and gasket and put back and tightened the 2 torque screws. closed air cleaner door and pushed the fuel lines o
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nto the new carburetor.put some fuel in the tank. started the trimmer. runs great.
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- Customer:
- Arthur from LAVONIA, GA
- Parts Used:
- 753-06085
- Difficulty Level:
- Really Easy
- Total Repair Time:
- Less than 15 mins
Air Filter needed to be changed
Air filter has a tab to open cover just press the tab to remove take old filter out and replace it with new one then reinstall the cover and you're done.
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Broken air cleaner
remove two screws holding old air cleaner housing to carburetor and manifold. The carburetor will come off but don't worry as long as gasket does not tear. line up new housing, put the 2 new screws in and tighten. put new filter in and the new cover on and done
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