DW421-AR (Type 3) DeWALT Sander Polisher - Overview

The 151281-08 Pad is used to hold 5 inch Hook and Loop sandpaper with 8 vacuum holes. Over the past few years the popularity of Hook and Loop paper has grown because of the ease of changing sandpaper when needed. Over that of the PSA (Pressure Sensitive Sandpaper) Applying too much pressure on the sander may cause premature wear on th...Read moree Hook and Loop pad. When a pad needs to be replaced, simply remove the three screws that hold the pad to the sander, then replace it with a new pad.

This is a genuine OEM replacement part, it is sold individually. This part is used to keep the brush tight against the armature so the tool will work properly. Over time when the brushes wear down and heat is created, the spring may lose its tension and will have to be replaced.

Genuine OEM replacement part designed for certain Random Orbit Sanders. This item is made out of Metal and it is Sold Individually. This is the bottom Bearing Retainer that keeps the bearing in place. It is attached to the fan with 3 screws which are Sold Separately.

Genuine OEM replacement part, this item is sold individually. The 151553-00 Dust Seal/Brake is a dual propose part. It is a Dust Seal to help prevent dust and debris from entering the motor assembly. It also acts as a Brake to keep the sanding pad at lower RPM so the sander will work properly. It is a good idea to replace this part when you are replacing the sanding pad.

This is a Genuine Manufacturer Sourced replacement part used on a variety of Sanders. This part is made out of Plastic and it is Sold Individually. This part is secured over Switch providing protection from the dust.

This authentic item is supplied by the original manufacturer for DeWALT random orbit sanders. It is the bottom half of the bearing retainer which is utilized to secure the armature bearing. The part is secured three screws which also attach the sanding pad. Note, the hardware is sold separately. It provides a high-quality replacement for ...Read morea missing or a damaged part that was installed on a new unit. Make sure to refer to the owner's manual and the diagrams of your model for the correct installation of this component. You will need a screwdriver to perform this repair.

O-rings are made to contain thousands of PSI pressure by creating a seal between two or more parts. O-ring measurements are defined by the inside diameter and the thickness. There are many causes for O-ring failure. The most common among power tools are: • The O-ring has ragged, tattered edges. These are commonly caused by pressure ...Read morespikes which shear off tiny "bites" from the O-ring, or caused by clearance gaps. • One or both sides of the O-ring appear rough and slightly flattened. Commonly caused by a contact surface that is too rough, contains grit, or is too smooth to allow lubrication. • The O-ring is flattened on both sides and may have a "ring" split along its length. Commonly caused by excessive pressure or heat. • The O-ring has a pitted or cracked surface, and is often flattened on both sides. Caused by temperature exceeding O-ring capacity. • The O-ring is covered in small surface cracks. Caused by exposure to ozone, UV rays, and air pollution. Excessive seal stretching (greater than 5%) causes similar cracking.

This Rocker switch has 2 terminals and a compact design for easy installation. This genuine DeWalt replacement part is sold individually. rnrnSwitches are commonly replaced parts in power tools. A switch handles on/off and variable speed functions. They also have a role in electric breaking; they can momentarily reverse electrical polar...Read moreity. Because switches use mechanical internals, they will degrade and wear out over time, eventually requiring replacement. Some common signs of a broken or failing switch are:rn • The tool has completely stopped functioning - it will not turn on.rn • The tool operates intermittently, requiring multiple tries to turn on, until eventually it won't turn on at all.rn • The variable speed function and electric braking aren't working properly.

This replacement screw is an authentic OEM sourced item, not an aftermarket equivalent. This is screw is used in a lot of different applications depending on your tool. Please check appropriate diagrams for correct use and location of this screw. This pan head screw is sold individually. You will need a torx screwdriver when working with this hardware.

Genuine OEM replacement part, this item is sold individually. This screw is used in various places in all of the tools listed below The most common use for this screw is to secure plastic housings together. It has a Torx T-20 head.