41ADY20C799 MTD Trimmer - Parts

This fuel tank assembly is supplied by the original manufacturer for use in trimmers. It is responsible for storing and transferring fuel to the engine for combustion. The assembly consists of a plastic tank, a fuel cap, a fuel filter, and the fuel lines which have a diameter of 0.25 inches. If the fuel tank is damaged, or the fuel lines ...Read moreare clogged, the assembly will need to be replaced. A faulty fuel tank assembly will result in fuel leakage, hard starting, rough idling, and poor equipment performance. To begin, drain the fuel from the tank. Disconnect the fuel lines and remove the mounting hardware that secures the assembly to the equipment. Pull off the old assembly and align the new one with the mounting holes. Secure the assembly in place and reconnect the fuel lines. Refill the fuel tank to complete the repair.

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, causing the airflow to increase in speed in the narrowest part. Below the Venturi is a butterfly valve called the throttle valve ' a rotati...Read moreng disc that can be turned end-on to the airflow, so as to hardly restrict the flow at all, or can be rotated so that it (almost) completely blocks the flow of air. This valve controls the flow of air through the carburetor throat and thus the quantity of air/fuel mixture the system will deliver, thereby regulating engine power and speed. The throttle is connected, usually through a cable or a mechanical linkage of rods and joints. Fuel is introduced into the air stream through small holes at the narrowest part of the Venturi and at other places where pressure will be lowered when not running on full throttle.

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 t...Read morehe 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.

This is a genuine OEM replacement part designed for use with some Handheld String Trimmers. This filter is made out of Foam and it is sold individually. The purpose of this filter is to keep dirt and other small particles from entering the carburetor and engine and causing internal engine damage. Once this type of filter gets clogged or d...Read moreirty it should be changed (Not Cleaned). This is to prevent restricted air flow and foreign matter from entering the engine.

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 carburetor and the air cleaner assembly. It is recommended to replace gaskets when servicing the motor to ensure proper seals when the parts are reassembled. This item is available as an individual replacement part.

This clutch assembly is a genuine OEM replacement kit for outdoor lawn equipment. The kit includes the clutch drum, clutch, clutch washer, and screw. The clutch assembly transfers power from the engine to the cutting attachment which allows you to operate the equipment. Over time, the clutch assembly may malfunction due to normal wear and...Read more tear or accidental damage. If the small clutch assembly fails, the engine will likely stall, and the cutting attachment will not be able to engage. To remove the clutch assembly, first bind the piston to prevent it from rotating. You can do this by removing the spark plug and inserting a length of rope into the cylinder with a few inches remaining outside. Remove the clutch cover and use a clutch removal tool to remove the nut that secures the assembly. Pull the old assembly from the crankshaft and position the new assembly in its place, ensuring it is securely fitted.

This plastic throttle trigger measures 2.5-inches in length and controls the power, speed, and intensity of the motor for your lawn equipment through the throttle cable and carburetor it is attached to. Sold as an individual part without any securing hardware, this trigger, although made of durable plastic, is a high-use part that will ne...Read moreed to be replaced more often than other parts. Check the user manual for your model for exact placement and installation location of this trigger.

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 carburetor it is recommended to replace the O-Ring instead of re-using the old one. Over time rings and seals tend to dry out and would no longer provide proper seal compromising engines performance.

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 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 is to keep pressure on the Bump Head Knob Assembly.

This is a Manufacturer Approved replacement part designed for Gas String Trimmers. The purpose of this Cover is to secure Foam Filter which is Sold Individually and protect internal parts like Carburetor from dirt and debris. This Assembly includes Plastic Outer Cover, Plastic Insulator and Two (2) Metal Bolts used to attach it to the uni...Read moret. Replacing this part will require a Phillips Head or a Flat Head Screwdriver. To replace simply remove two Screws and pull off the Cover. Please note when replacing this item it is recommended to also replace Air Cleaner Gasket (Sold Separately) which provides an air tight seal between carburetor and Insulator.

This is a genuine anti-rotation screw from the Ryobi manufacturer. The metal screw is compatible with many lawn and garden trimmers. This item works to help secure the clutch cover assembly. This part is sold individually. A screwdriver is needed in making the repair.