HR3850B Makita Hammer - Overview

This part is available individually. The spring washer fits between the wing nut and the flat washer. This washer is small and will need to be replaced if it gets lost or if it breaks. It is made out of metal and no tools should be necessary when replacing this item. This is an OEM Makita part directly sourced from the manufacturer for use with saws, cutters, planers, drills, and trimmers.

This Trigger switch has 4 terminals. This is an authentic Makita replacement part that is sold individually. Switches are commonly replaced parts in power tools, handling all on/off and variable speed operations. They also have a role in electric breaking; they can momentarily reverse electrical polarity. Because switches use mechanica...Read morel internals, they will degrade and wear out over time, eventually requiring replacement. Some common signs of a broken or failing switch are: • The tool will not start when you use the switch, or it requires multiple tries to turn on, until eventually it refuses to start at all. • The variable speed function and electric braking aren't working properly.

This is a genuine OEM sourced replacement o-ring which is utilized on Makita power tools. This component provides an air-tight seal between connected parts, over time the material may become brittle and crack eventually requiring a replacement to ensure the proper seal. It is a high-quality component which is made of durable rubber and it is sold individually.

This genuine OEM steel ball is found within the housing of your power tool. It serves as a detent mechanism, securing the shift knob in various positions to allow for the selection of different operating modes. It has a diameter of 4.8mm. If you notice signs of wear or deformation on the steel ball, it is a clear indication that it needs ...Read moreto be replaced. A worn-out steel ball can result in a loose shift knob that fails to hold its selected position properly. To locate and access the steel ball within the housing, refer to the instructions outlined in your user manual. Your tool may use steel balls of different sizes, so confirm that this is the correct part your repair will need before making your purchase.

This authentic replacement ball bearing which is supplied by the original manufacturer, it is specially designed for use with Makita power tools. Ball bearings are used to reduce friction between rotating parts, they experience constant wear from pressure, heat, vibration, and friction eventually requiring replacement to maintain peak per...Read moreformance. It is generally used as one of the armature bearings, for correct application make sure to check appropriate diagrams of your model. This part is made of high-quality metal and it is sold individually.

This is an authentic replacement part manufactured for Makita rotary hammers. The is one of three rings used to seal the cylinder, this special ring is used in two locations on the HR3851 rotary hammer. The ring is sold individually, please see model diagram for part locations.

Genuine Makita replacement part, this item is sold individually. The purpose of the Brush Holder Cap is to retain the brush in the brush holder. This Brush Cap is used on all the Makita models listed below. It is removed by using a slotted screwdriver Do not press too hard when removing the cap they do have a tendency to break.

This cord is a genuine Makita replacement part and is sold individually. This cord is made for the double insulated tools shown below It is a two wire cord with two prongs and does not need a ground wire.

This is a genuine item that is supplied directly from the original equipment manufacturer for use with Makita power tools. It is an identical replacement for a missing or damaged rubber pin that was originally installed on a new unit, please make sure to refer to the appropriate diagrams of your model for the correct location and applicat...Read moreion of this hardware. Keep in mind this high-quality item is made of durable rubber material and is sold individually.

This is a high quality item that is specially manufactured for use with Makita power tools. It is a standard hardware which has multiple used depending on the tool, please make sure to check appropriate diagrams for correct use and application of this screw. One durable metal pan head screw is included per order.

This is an authentic Makita replacement part that has been sourced from the original manufacturer to be used with circular saws, table saws, masonry saws, planers, demolition hammers, and angle cutters. The washer has multiple applications based on the model of the power tool. It is recommended to review your model's diagram to verify this washer's compatibility. The washer is sold individually.