Original Makita heat sink (part no. 689204-3) — direct-fit replacement for select Makita reciprocating saws. This aluminium cooling block draws heat away from the motor area to prevent thermal stress and restore reliable performance; it’s manufactured to the same shape and mounting points used in the factory assembly so it installs with basic hand tools. Typical fitment includes Makita DJR186 and models in the same XRJ04 family (18 V LXT reciprocating saw variants), making it a good choice when the tool is running hot or the original cooling fins are damaged. If you need a quick repair, this genuine Makita spare part gives the correct contact surfaces and corrosion-resistant finish to get the saw back into service. Makita spare parts like this heat sink are compact, lightweight and intended as a simple, one-component swap to protect the motor and nearby components.
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