4640 - Overview

This is a genuine Murray replacement part, it is sold individually. It is commonly used in lawn tractors, and is used in various places in the compatible models listed below. It is self tapping, with a 9/16 hex head. Made of metal.

This mandrel housing is for lawn tractors. Mandrel housing houses the shaft that spins the blade. Wear work gloves to protect your hands when installing this part.

This cotter pin is an OEM part that is 1.25 inches long, gold in color, and sold individually. Made of metal, it can have a range of applications on a variety of lawn and garden equipment. Generally, you will need to replace this part if it becomes broken due to age and wear, or if you need to remove it for making other repairs. This is...Read more an easy repair that only requires a pair of pliers to carry out. You need to bend one end around the shaft or bolt and bend the other around the back end of the bolt to complete the repair.

The Blade Adapter is used to connect the mower blade to the base of the mower deck. The part is individually sold, silver metal, and measures approximately 2 inches in diameter. Installation requires a Wrench or Socket and is rated as "Easy". If damaged (likely due to fatigue and general wear) there maay be a vibration or rattling sound f...Read morerom it coming loose. Refer to your make, model and diagrams to ensure this is the correct part.

This hex nut is a fastener made from steel and is used to secure the end of a bolt in various lawn and garden equipment and machinery. It is a genuine OEM replacement part that comes in a standard size of 5/16 of an inch with 18 threads per inch. The hex nut has a hexagonal shape, which gives it greater grip and makes it easy to tighten u...Read moresing a wrench or a set of pliers. The nut also has a flange on one end, which locks the nut in place, prevents damage to the area where it is installed, and allows the load to be evenly distributed. It is important to replace your hex nut if it is loose, cracked, or corroded. If you have not yet removed the old hex nut from your equipment you will need a socket wrench to remove it. After that, you can easily install the new nut by threading it onto a bolt or screw and then tightening it with a wrench or pliers until it is tightly secured.

The hair pin is a silver, metal pin used to secure and lock parts in place. If broken, the part being secured will come loose and the pin should be replaced. This is an OEM part directly from the manufacturer. Most customers rated the replacement of the hair pin as an easy repair.

The Blade Nut is a 9/16-18" silver, metal nut. This part is sold individually, and requires a wrench and socket to install. Its installation is rated "Easy". This part secures the blade in place and attaches onto the blade shaft. If broken (likely due to fatigue) it may come loose and rattle, causing vibrations. Refer to your make, model and diagrams to ensure this is the correct part.

This centerlock nut, or lock nut, is sold individually and locks itself in place when inserted, to prevent it from backing out due to vibration. Over time, due to its strenueous job, it may become loose or break due to wear and tear, and will need to be replaced. This lock nut is made of metal and is silver in color. When it will no longe...Read morer lock, you will need to complete this easy repair, which requires a wrench or socket and torque wrench. Ensure you torque the lock nut to your manufacturer specifications; this nut can have a range of different applications for a variety of equipment, so please check your model number or owners manual to be sure it is the right fit for your model.

Genuine Manufacturer Approved replacement part for a variety of Murray Lawn Tractors. This part is made out of Plastic and it is Sold Individually. This Cap provides a protection for the wheel bolt to keep away dirt and other debris, it also serves and aesthetic purpose.

This is a metal star screw. It is a genuine OEM sourced part which is specifically designed for use with Briggs & Stratton engines and generators, and Toro snowthrowers, tillers, blower-vacuums, lawn tractors, and lawn mowers. This is available as an individual replacement part. A Torx screwdriver will be needed to replace this part if it becomes stripped or lost.

The Shoulder Bolt (size: 3/8 16 x 3/4) is a black, metal, individually sold part. It can be installed using a wrench or socket. This part is used to secure other parts in place. You'll know if it needs to be replaced if the part is coming loose. This means it is damaged, likely due to fatigue/wear/damage. Refer to your make, model and diagrams to ensure you're picking the right part.