TB21EC Troy-Bilt Trimmer - Parts

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, ...

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 ...

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...

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.

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...

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...

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...

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...

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...

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...

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. ...

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...