Description
Overview:
This Switch Block is a genuine Makita replacement part (OEM No. 632K98-1) designed for selected Makita angle grinders, including the GA4040C and GA4540C. It restores reliable on/off control and helps maintain safe, consistent operation of the tool. Built with a robust plastic housing and metal internal contacts, the unit is engineered to withstand regular site and workshop use. As a direct-fit electrical component, it integrates with the grinder's existing wiring and handle layout to keep the machine operating as intended. Ideal for replacing worn, intermittent, or damaged switches, it supports both professional servicing and DIY repairs where the original switch has failed or become unreliable. Genuine Makita specification ensures compatibility, performance, and long service life.
Key Features:
- Genuine Makita OEM part for exact fit and function (OEM No. 632K98-1)
- Compatible with GA4040C, GA4540C, GA5040C, and PC5010C angle grinders
- Durable construction with tough plastic body and metal contacts
- Direct like-for-like replacement for faulty or worn switch blocks
- Helps maintain safe, dependable power switching and tool control
- Integrates cleanly with the original wiring and housing-no modifications needed
- Compact, factory-matched form factor for an uncluttered handle area
- Suitable for routine maintenance and corrective repair in trade or DIY settings
- Genuine Part for assured compatibility and consistent performance
Typical Applications:
Used to replace a failed or intermittent switch block on compatible Makita angle grinders. Common scenarios include grinders that will not start, cut out unexpectedly, or have inconsistent trigger response. Suitable for workshop servicing, site repairs, and preventative maintenance to keep grinders operating safely and efficiently.
Also known as:
Switch assembly, trigger switch block, power switch block, grinder on/off module, control switch, switch unit, replacement switch module.
Fits Models:
GA4040C, GA4540C, GA5040C, PC5010C
Alternate Part Numbers:
632K98 1, 638947-4, 638947 4, 6389474, 632K981
Product Specifications
Reviews
Ask a Question
Compatibility
Customers also bought
-
![]()
Key Steel (Imperial) Length: 12" Assorted Pack of 20£78.14 £65.12 -
![]()
Flat Bar, Sizes: 20 x 3-6mm - Assorted Pack of 10£79.52 £66.27
Related Products
-
![]()
Key Steel (Imperial) Length: 12" Assorted Pack of 20£78.14 £65.12 -
![]()
Flat Bar, Sizes: 20 x 3-6mm - Assorted Pack of 10£79.52 £66.27
