99944200521 Echo Chainsaw - Overview

The m10 Left Hand Thread Nut is a 10mm, gold metal part, sold individually. This nut is a "reverse thread". It requires a wrench or socket set to install, and installation is rated as "Easy". Use this part to secure the blade to the unit, by attaching it to the shaft, securing the cutting blade. If broken or damaged, it should be replaced...Read more. Refer to your make, model and diagrams to check if this is the right part for you.

The Cotter Pin (or Split Pin) is a 2x22mm silver metal part, sold individually. It is rated as "Easy" to install, and installation will require a set of pliers. It can be attached in various locations on a variety of equipment and is used to secure and lock parts in place. If broken, damaged, or worn down the part it is securing may becom...Read moree loose, and the part should be replaced. If this part is removed for repairs, replace it with a new one. Refer to your make, model, and diagrams to make sure this is the correct part.

This OEM nut is a 5mm, gold, metal nut, which is sold individually. It can be installed with a Wrench or Socket and Torque Wrench by torquing to the manufacturer specifications. This nut is used to secure another part in place, and should be replaced if damaged due to fatigue (such as damaged threads or rounded ends). This nut can have v...Read morearious uses on various equipment, and as such the difficulty of the installation can vary, but generally this is an easy repair.

This replacement screw is specially designed for use with Echo handheld lawn and garden equipment. It is a high quality OEM sourced item, not an aftermarket imitation. This screw is a standard hardware which has multiple uses depending on the equipment. Please note, this hex socket head screw is sold individually.

The Blade Fixture is a silver, metal, individualy sold blade, which attaches at the bottom of the cutting head assembly, being held on by the nut and cotter pin. It is used to secure the blade fixing plate of the trimming tool. Installation is rated as "Easy" and requires a wrench and pliers to complete. If broken or damaged due to genera...Read morel wear, the cutting blade will not be secured, may be loose, or may not be able to stay on, which means you need to replace it. Refer to your make, model, and diagrams to ensure this is the correct part.

This is an authentic replacement part manufactured for use with Echo backpack blowers, edgers, and trimmers. The screw has multiple applications that vary depending on the model of equipment. This screw is sold individually, please see model diagram for part location and usage.

The Spacer is a silver, metal part, which is rated as "Easy" to install. It can be attached between the bearing and oil seal in the gear box, to provide spacing between these parts. If broken, damaged or worn it should be replaced. Refer to your make, model and diagram to ensure this is the correct part for you.

The Upper Adapter Plate is a silver, metal part used to support the blade. It is the upper adapter on top of the blade that helps secure it in place. Installation is rated as "Easy" and requires pliers, and a wrench set. If broken or damaged, there may be a problem with it securing the blade, and it should be replaced. Refer to your make, model and diagrams to ensure this is the right part.

This replacement spring washer is a genuine OEM hardware that is commonly utilized on Shindaiwa and Echo lawn and garden equipment. It has multiple uses depending on the equipment, for correct location and application for this party please make sure to check appropriate diagrams for your equipment. Please note this durable metal spring washer is sold individually.

This is a genuine Echo replacement part that has been sourced from the original manufacturer to be used with trimmers. The durable handle grip attaches to the end of the handlebar. This item is used to provide a handhold on the handlebar. This item is sold as an individual replacement part.

This is an original Echo replacement part. The throttle lock spring is commonly found in trimmers, brushcutters, and hedge clippers. This part is made of metal, and is used to provide tension to the throttle control switch and the throttle lockout switch. You may require a screwdriver and pliers when replacing this item. This part is sold individually.