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 Oil Fill Cap
Model Number: 42-52-1050
The Milwaukee 42-52-1050 is a genuine OEM Oil Fill Cap for the 6577-20 7-1/4 in. Worm Drive Circular Saw. A worm drive saw uses gear oil in its worm drive gearcase for lubrication, and this is the threaded cap that closes and seals the oil fill port on the saw. It is the cap the operator removes to add or top off the worm-drive gear oil and reinstalls to seal the reservoir, and its seal is what keeps the oil contained inside the gearcase and keeps dust and debris out. Because the cap is removed and reinstalled during oil service and takes the heat and vibration of the running saw, it is a wear item: a cracked, stripped, or non-sealing oil fill cap allows gear oil to leak or lets contamination in, which can lead to low oil, poor gearcase lubrication, and accelerated wear of the drive. Replacing it with the correct genuine Milwaukee OEM oil fill cap restores a proper seal and correct oil retention in the worm drive.
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 the cap's thread pitch and seal must match your saw's fill port. This oil fill cap is specified for the 6577-20 Worm Drive Circular Saw, so confirm your tool's catalog and serial number against the parts diagram before ordering. The oil fill cap seal or gasket, and the gearcase and drive components it seals, are separate parts that vary by tool, so refer to your tool's parts diagram for the correct companion part numbers. When checking or topping off the oil, use the Milwaukee-specified worm drive oil for the saw, and check the oil level before use as the saw calls for.
Features
- Genuine Milwaukee OEM service part, not an aftermarket substitute
- Oil Fill Cap for the 6577-20 7-1/4 in. Worm Drive Circular Saw
- Threaded cap that closes and seals the gear oil fill port
- Removed to add or top off the worm-drive gear oil, then reinstalled to seal
- Keeps the gear oil contained and dust and debris out of the gearcase
- Restores a proper seal when the original is cracked, stripped, or leaking
- A wear item removed and reinstalled during oil service
- Prevents low oil and poor gearcase lubrication from a leaking cap
- Manufactured to Milwaukee specification for correct thread and seal
- Use the Milwaukee-specified worm drive oil when servicing the saw
- The cap seal and gearcase components are separate parts, sold separately
- Verify catalog number and serial number before ordering
Specifications
- Manufacturer: Milwaukee Tool
- Part Number: 42-52-1050
- Official Description: Oil Fill Cap
- Component Type: Gearcase oil fill cap
- Function: Seals the worm drive gear oil fill port
- Primary Fitment: 6577-20 7-1/4 in. Worm Drive Circular Saw
- 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 42-52-1050 Oil Fill Cap
The oil fill cap seal or gasket and the gearcase and drive components it seals 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.
