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 183-3MR Belt
Model Number: 42-25-0036
The Milwaukee 42-25-0036 is a genuine OEM 183-3MR Belt for the 2524-20 M12 FUEL Compact Planer. This is the toothed synchronous drive belt that transfers power from the tool's motor pulley to the cutterhead, turning the planer's rotating cutter that removes material from the workpiece. The 183-3MR designation describes the belt itself: an effective length of 183 mm, a 3 mm tooth pitch in the curved-tooth 3MR profile, and 61 teeth across a width of roughly 15 mm. The toothed design meshes positively with the drive and cutterhead pulleys so power transfers without slipping, which is what keeps the cutterhead turning at the correct speed under the load of planing. Because the belt carries the full drive load and flexes continuously in service, it is a genuine wear item: over time it can wear, crack, glaze, stretch, or lose teeth, at which point the tool may bog down, lose cutting performance, slip, or stop driving the cutterhead altogether. Replacing it with the correct genuine Milwaukee OEM belt restores proper, positive power transfer to the cutterhead, since a belt of the wrong length, pitch, or tooth count will not mesh correctly.
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. This belt is documented at Figure 62 on the 2524-20 M12 FUEL Compact Planer service parts list, where it works together with the 28-tooth 3MR drive pulley and the belt cover. Those companion parts are separate service items, so refer to your tool's parts diagram for the correct part numbers and quantities, and inspect the pulley and cutterhead for wear when replacing the belt, since a damaged pulley or a seized cutterhead can be what caused the belt to fail. Replacing this belt requires removing the belt cover to access the drive, so follow the correct service procedure for your planer.
Features
- Genuine Milwaukee OEM service part, not an aftermarket substitute
- 183-3MR drive belt for the 2524-20 M12 FUEL Compact Planer
- Toothed synchronous belt that drives the cutterhead from the motor
- 183 mm effective length, 3 mm tooth pitch, 61 teeth, approximately 15 mm wide
- Curved-tooth 3MR profile meshes positively for slip-free power transfer
- Keeps the cutterhead turning at the correct speed under planing load
- Restores positive power transfer after the belt wears, cracks, or stretches
- Corrects a planer that bogs down, slips, or stops driving the cutterhead
- Manufactured to Milwaukee specification for correct length, pitch, and fit
- Documented at Figure 62 on the 2524-20 service parts list
- Works with the 28-tooth 3MR drive pulley and belt cover, sold separately
- Verify catalog number and serial number before ordering
Specifications
- Manufacturer: Milwaukee Tool
- Part Number: 42-25-0036
- Official Description: Belt (183-3MR)
- Component Type: Toothed synchronous drive belt
- Belt Spec: 183 mm length, 3 mm pitch, 61 teeth, 3MR profile
- Primary Fitment: 2524-20 M12 FUEL Compact Planer
- Also Referenced On: Verify additional applications using Milwaukee's online parts lookup
- Parts Diagram Position: Figure 62 on the 2524-20 service parts list
- Quantity: Sold individually, (1) required per tool
- Part Type: Genuine Milwaukee OEM Replacement Part
Includes
- (1) Milwaukee 42-25-0036 183-3MR Belt
The drive pulley, belt cover, cutterhead, and mounting hardware that work with this belt 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.
