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 Detent Spring
Model Number: 40-50-0377
The Milwaukee 40-50-0377 is a genuine OEM Detent Spring for a Milwaukee miter saw. The detent spring is the spring that loads the detent pin or ball in the miter saw's base turntable detent system, pushing the detent element into the preset angle notches machined into the base plate to produce the positive, tactile clicks felt when the miter angle is set to a common preset position such as 0, 15, 22.5, 31.6, or 45 degrees. This lets the operator quickly and reliably snap the miter table to a precise preset angle without reading the scale, which improves speed and repeatability on repetitive crosscuts. The detent spring must maintain consistent spring force to hold the detent firmly engaged at the preset positions while still allowing smooth override when the operator intentionally rotates the table to a non-preset angle. When the spring breaks, fatigues, or takes a set, the detent can miss preset positions, fail to hold the table at the correct angle, or lose its positive click, and it needs to be replaced to restore accurate, repeatable miter preset function. Using the correct genuine Milwaukee OEM detent spring ensures the proper spring rate and dimensions for reliable detent engagement.
Because Milwaukee Tool specifies replacement parts by both catalog number and serial number, always verify your tool's serial number against the official Milwaukee service parts diagram before placing your order, since running production changes can alter part compatibility within the same catalog number, and detent springs are specific to the saw and detent system they serve. Do not order by appearance, since springs that look similar can differ in rate and free length, and the diagram is what confirms the correct part for your saw. The detent pin or ball, detent slider, and the surrounding turntable and lock components that work with the detent spring are separate parts that vary by tool, so refer to your tool's parts diagram for the correct companion part numbers and quantities, and inspect the related detent hardware when replacing the spring since these parts work together.
Features
- Genuine Milwaukee OEM service part, not an aftermarket substitute
- Detent Spring for a Milwaukee miter saw base turntable detent system
- Loads the detent pin or ball into the preset angle notches on the base
- Produces positive, tactile clicks at common preset miter angles
- Lets the operator snap the table to a preset angle without reading the scale
- Holds the detent engaged while still allowing smooth override to other angles
- Restores accurate miter preset function when the original breaks or fatigues
- Manufactured to Milwaukee specification for the correct spring rate and dimensions
- Corrects a detent that misses presets or fails to hold the table
- Order by exact catalog number, since similar-looking springs differ
- Detent pin, slider, and turntable hardware vary by tool and are sold separately
- Verify catalog number and serial number before ordering
Specifications
- Manufacturer: Milwaukee Tool
- Part Number: 40-50-0377
- Official Description: Detent Spring
- Component Type: Miter saw base turntable detent spring
- Application: Miter base turntable preset angle detent system
- 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, (1) required per tool
- Part Type: Genuine Milwaukee OEM Replacement Part
Includes
- (1) Milwaukee 40-50-0377 Detent Spring
The detent pin or ball, detent slider, and the surrounding turntable and lock components that work with the detent 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.
