Makita Genuine 632J71-5 Yoke Unit for Makita BDF441, BDF442, BDF446 Cordless Drills

The Makita 632J71-5 Yoke Unit is a genuine OEM replacement component for the motor assembly in selected Makita cordless and combi drills, including the BDF441, BDF442, and BDF446 models.

This cylindrical motor yoke houses the permanent magnets that form the motor's field, playing a critical role in delivering consistent torque and smooth running. When the original yoke becomes worn or demagnetised, performance suffers — resulting in reduced power output, increased vibration, and accelerated wear on surrounding motor components such as brushes and the armature.

Manufactured to Makita's OEM standards, this part offers an exact fit into the motor section without modification, making it a straightforward replacement using standard workshop tools. Its robust metal construction and securely bonded magnets are built to withstand the frequent starts, stops, and high load cycles typical of professional site use.

This yoke unit is an ideal choice during motor overhauls or when replacing bearings and armatures, helping to restore correct magnetic alignment and extend the working life of the rebuilt motor. It is equally suited to contractors carrying out planned maintenance and repair technicians servicing tools on behalf of tradespeople.

Features and Benefits:
• Genuine Makita OEM part for assured compatibility with BDF441, BDF442, and BDF446 models
• Precision-formed cylindrical yoke with securely bonded magnets for a stable motor field
• Restores torque output, speed consistency, and smooth operation
• Reduces motor vibration and noise caused by a worn or demagnetised yoke
• Exact-fit design requires no modification — fits with standard workshop tools
• Supports longer brush and armature life by maintaining correct magnetic alignment
• Durable metal construction suited to high-frequency professional use
• Ideal preventive replacement during motor overhauls or bearing and armature changes