Product Description
**Milwaukee parts change not only by model# but also by serial number. To look up your tools parts break down on Milwaukee's website please click here:
Milwaukee Spring for Switch
Model Number: 40-50-0217
The Milwaukee 40-50-0217 is a genuine OEM Spring for Switch, the precision-dimensioned spring that provides the return and actuating force in a tool's trigger or switch mechanism. The switch spring connects to the switch or trigger lever and supplies the force that returns it to its resting position: when the operator releases the trigger or switch, this spring pushes it back so the tool shuts off reliably, and it provides the consistent feel and return action the switch is designed around. The spring's rate, free length, and wire diameter are all critical to correct function, so an incorrect spring can cause the switch to feel wrong, fail to return, or actuate improperly even if it physically fits the space. Because the spring is cycled every time the tool is triggered, it is a wear component: over time it can fatigue, take a set, or break, at which point the switch may not return properly or the tool may not shut off cleanly. Replacing it with the correct genuine Milwaukee OEM switch spring restores proper, reliable switch operation.
Because Milwaukee Tool specifies replacement parts by both catalog number and serial number, and because switch springs are specific to the exact switch mechanism they serve, always verify your tool's serial number against the official Milwaukee service parts diagram before ordering to confirm this is the correct spring for your tool. Do not order by appearance, since springs that look similar can differ in rate and dimensions, and the diagram is what confirms the correct part. A screwdriver is typically needed to open the tool to access and replace the switch spring. The switch, trigger, and related switch components that work with this spring are separate parts that vary by tool, so refer to your tool's parts diagram for the correct companion part numbers, and inspect the switch and trigger when replacing the spring since these parts work together.
Features
- Genuine Milwaukee OEM service part, not an aftermarket substitute
- Spring for Switch, the return spring in a trigger or switch mechanism
- Connects to the switch or trigger lever to provide return force
- Returns the switch to its resting position so the tool shuts off reliably
- Provides the consistent feel and return action the switch is designed around
- Spring rate, free length, and wire diameter are critical to correct function
- Restores proper switch operation when the original fatigues or breaks
- A wear component cycled every time the tool is triggered
- Manufactured to Milwaukee specification for the correct force and fit
- Order by exact catalog number, since similar-looking springs differ
- The switch and trigger are separate parts, sold separately
- Verify catalog number and serial number before ordering
Specifications
- Manufacturer: Milwaukee Tool
- Part Number: 40-50-0217
- Official Description: Spring for Switch
- Component Type: Switch or trigger return spring
- Function: Provides return and actuating force in the switch mechanism
- Primary Fitment: Verify by catalog and serial number on the parts diagram
- Also Referenced On: Verify additional applications using Milwaukee's online parts lookup
- Parts Diagram Position: Verify the figure and bulletin number on Milwaukee's online parts lookup
- Quantity: Sold individually, quantity per tool varies by model
- Part Type: Genuine Milwaukee OEM Replacement Part
Includes
- (1) Milwaukee 40-50-0217 Spring for Switch
The switch, trigger, and related switch components that work with this spring are NOT included, vary by tool, and are sold separately - refer to your tool's parts diagram for the correct part numbers and quantities. Always verify by serial number using Milwaukee's online parts lookup before ordering.
