Parts for Poulan ES400: Chain Saw Parts

This authentic OEM part is a replacement momentary switch meant for a chainsaw or edge trimmer. Also known as a kill switch, a momentary switch acts as a safety measure to immediately shut off the appliance's motor. If the user begins to lose control of the appliance, they can simply hit the momentary switch and the engine will disengage even if it is not currently in the off position. This helps to prevent accidents and bodily harm. When engaged, the engine requires a five second waiting period before it can restart. Over time and through repeated use, switches can naturally become worn out. They may also be damaged if knocked against something hard on accident. Replacing this switch will require a screwdriver to access the switch located in the handle of the appliance. Once accessed, the switch can easily be replaced by detaching the wires and inserting the new part. Be sure to follow the user's manual as this process will vary depending on the appliance. This part is sourced directly from its original manufacturer and will work with Poulan and Weed Eater appliances. This part ships individually.

If your chainsaw chain won't spin or turns inconsistently, the pinion gear may be worn. This gear drives the chain rotation mechanism during operation.

Replacement retaining ring that secures the sprocket to the gear drive shaft in chainsaws. Needed when original ring is damaged, broken, or missing.

Washer for chainsaw assembly. Replaces worn, missing, or damaged washers. Used in various mounting and fastening points throughout the chainsaw.

Fix a chainsaw that won't rotate or makes grinding noises with this gear drive pinion. Works with the sprocket to rotate the chain. DIY-friendly repair.

Tapping screw for outdoor power equipment engines. Replaces missing, stripped, or damaged mounting screws. Consult your parts diagram for location.

Thumb wheel assembly for chainsaw chain adjustment system. Replace this plastic and metal control knob if stripped, worn, or broken. Essential for tightening.

This replacement part is a screw and is intended for use in a variety of lawn equipment. This is a genuine replacement part made by Husqvarna. Screws are an important part of many different types of machinery as they hold other parts in place and secure. A new screw might be needed if the current ones are loose or missing. It is common that screws might become stripped overtime and will need to be replaced. Be sure to double check the size of the screw as many places on lawn equipment will require different size screws. Be sure the appliance is completely powered down and cooled off before attempting to repair an appliance. For more detailed instructions on how to install this specific part, see the owner's manual. This is an OEM part sourced directly from the manufacturer. It is sold individually. This replacement part is compatible with different types of lawn equipment made by Husqvarna.

Chain tensioner pin for chainsaws. Installs in the tensioning mechanism to place tension on the bar when adjusted. Replace if bent, worn, or missing.

Fix a loose or misaligned chainsaw bar with this adjusting screw. Located in the clutch housing, this part wears with frequent adjustments. Easy DIY fix.

Mounting screw for lawn equipment including blowers, trimmers, and hedge trimmers. Replaces broken, stripped, or missing screws that secure components.

If your chainsaw chain is coming loose or breaking off the guide bar, replace the chain catcher. This safety part prevents the chain from flying off.

Replacement retaining ring that secures the sprocket to the gear drive shaft in chainsaws. Needed when original ring is damaged, broken, or missing.

This is a six-pin sprocket used in many models of chainsaws. The sprocket is an integral component of a chainsaw since it drives the chain on the machine, transfering the power to the chain so it can cut through wood effectively. Due to the high speeds and vibrations created by the chain, this item may become worn out and need to be replaced. The best way to determine whether the sprocket is worn out is by manually rotating the chain on the chainsaw. If the chain is tensioned correctly and the chain rotates smoothly before becoming loose or hard to turn, the sprocket likely has worn teeth. This can be checked by loosening the bar nuts and taking off the bar, chain, and cover. The sprockets will be exposed and an inspection can be done visually. Look for teeth that are grooved or notched, which indicates the sprocket will need to be replaced.This six-pin sprocket is a genuine OEM replacement part that is sourced directly from the manufacturer. The component is sold individually. The sprocket is compatible with various chainsaws manufactured by Craftsman, Poulan, and Poulan Pro.

Replacement washer for chainsaw assembly. Needed when the original washer is missing, cracked, or worn. Ensures proper spacing and secure fit of components.

Tapping screw for outdoor power equipment engines. Replaces missing, stripped, or damaged mounting screws. Consult your parts diagram for location.

Replacement oil cap for chainsaw, trimmer, and pruner oil tanks. Tethered design prevents loss. Replace if cracked, broken, or missing threads.

The oil tank cap helps keep dirt, insects, and flying debris out of the tank and oil inside of it. Contaminated oil can wreak havoc on the inner workings of your engine because of foreign particles gumming up the mechanics. Keeping the lid tightly shut is the best way to keep your oil clean. Oil caps attach to the outside of a machine, so they are susceptible to physical damage and the elements. It is time to replace the oil cap if it will no longer connect completely to the oil tank. With this genuine OEM product from the original manufacturer, quickly and easily swap out the oil cap before anything can fall into the tank. Just remove the broken cap, feed the blocker into the tank, and screw the new cap on. Compatible with string trimmers and chainsaws made by Craftsman, Poulan, and Poulan Pro. Sold individually.

Here is a replacement check valve for use with a wide range of different types of equipment and machines. The check valve is a one-way valve that is used in various types of lines as a means to prevent backflow. In the case of engines, the valve is used as a means to prevent fuel or oil from flowing backward. The check valve has the potential to wear down or crack over time. If this happens, it will no longer be capable of stopping backflow from oil or gas, and it will need to be replaced. Owners should examine the check valve when they are inspecting their machine to see if it is still in good working condition. This is a genuine OEM replacement check valve. It is made from durable plastic and is sold individually. The part can be used for more than 150 models of chainsaws. It can also be used with some models of trash compactor, string trimmers, and hedge trimmers. Compatible brands include Craftsman, Husqvarna, Weed Eater, Poulan, Poulan Pro, Broan, Paramount, and Turf King.

Fix chainsaw bar oil starvation with this oil pickup assembly. Draws oil from tank through mesh strainer to pump. Direct replacement component.

If your chainsaw bar isn't getting oil or runs dry during use, a damaged oil pickup fitting may be blocking flow. Simple replacement restores lubrication.

Tapping screw for outdoor power equipment engines. Replaces missing, stripped, or damaged mounting screws. Consult your parts diagram for location.

Bar adjuster tool for tightening loose chainsaw chains. Angular design makes bar adjustment quick and easy. Simple hand tool for proper tension.