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 120V Compact Motor Field Assembly
Model Number: 18-07-0315
The Milwaukee 18-07-0315 is a genuine OEM 120V Compact Motor Field Assembly for Milwaukee 4.5 in. compact angle grinders. The field assembly, also called the stator, is the stationary electromagnetic winding assembly that surrounds the rotating armature in the tool's universal motor. While the armature spins, the field generates the magnetic field that drives that rotation and produces the motor's torque, so the field and the armature work together as the two halves of the motor: the field stationary, the armature rotating inside it. This field is rated for 120V, which confirms it is wound and insulated specifically for North American line voltage, and the compact designation matches it to Milwaukee's compact grinder motor. Supplied as a complete, ready-to-install assembly, it replaces a field that has failed through insulation breakdown, burnt windings, or an open circuit, any of which leaves the tool without power, running weakly, or not running at all. Installing the correct genuine Milwaukee OEM field assembly restores full motor performance.
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 ordering to confirm this is the correct field assembly for your tool. This 120V compact field assembly fits a range of Milwaukee 4.5 in. compact angle grinders, including the 6146-30, 6146-31, and 6142-30 and related models, so confirm your tool's catalog and serial number against the parts diagram before ordering. Because the field and armature are matched components in the motor, it is good practice to inspect the armature, the carbon brushes, and the commutator when replacing the field, and to replace worn brushes at the same time, since a motor rebuild is most reliable when the field, armature, and brushes are all in good condition. Because this is an electrical motor repair, follow the correct service procedure, note the wiring connections before removing the old field, and route and connect the new field exactly as original. Service should be performed by someone competent to work on power tool electrics.
Features
- Genuine Milwaukee OEM service part, not an aftermarket substitute
- 120V Compact Motor Field Assembly for 4.5 in. compact angle grinders
- The stationary stator that surrounds the rotating armature
- Generates the magnetic field that drives armature rotation and motor torque
- Works together with the armature as the two halves of the motor
- Rated and wound for 120V North American line voltage
- Supplied as a complete, ready-to-install assembly
- Restores full motor output after a burnt, shorted, or open field
- Fits models including the 6146-30, 6146-31, and 6142-30 compact grinders
- Inspect the armature, brushes, and commutator when replacing the field
- Electrical service should be performed by a competent servicer
- Verify catalog number and serial number before ordering
Specifications
- Manufacturer: Milwaukee Tool
- Part Number: 18-07-0315
- Official Description: 120V Compact Field Assembly
- Component Type: Motor field assembly (stator)
- Voltage: 120V
- Function: Generates the magnetic field that drives the armature
- Primary Fitment: Milwaukee 4.5 in. compact angle grinders (6146-30, 6146-31, 6142-30) - verify by model and serial number
- 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
- Recommended Companion Service: Inspect the armature and replace carbon brushes
- Quantity: Sold individually, (1) required per tool
- Part Type: Genuine Milwaukee OEM Replacement Part
Includes
- (1) Milwaukee 18-07-0315 120V Compact Motor Field Assembly
The armature, carbon brushes, brush holders, and other motor components that work with the field 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.
