DeWalt N031214 Brush Box Set – Genuine OEM Replacement Carbon Brush & Holder Set
Part Number: N031214
Category: Power Tool Parts → Motor Components → Carbon Brush & Holder Sets
Type: DeWalt N031214 Brush Box Set – Genuine OEM Replacement Carbon Brush & Holder Set
The DeWalt N031214 Brush Box Set is a genuine OEM replacement carbon brush and holder assembly designed for compatible DeWalt cordless drills and hammer drills. This complete set includes two carbon brushes with integrated brush holders and springs, providing the electrical connection between the stationary motor circuit and the rotating armature. Carbon brushes are normal wear items, and replacing them helps restore motor performance, improve electrical efficiency, and maintain proper electric braking on compatible tools. Manufactured to original equipment specifications, the N031214 Brush Box Set provides a direct-fit replacement for worn or damaged brush assemblies.
Key Features & Benefits
- Part Number: N031214
- Genuine OEM DeWalt replacement part
- Complete brush box set with two carbon brush assemblies
- Includes carbon brushes, brush holders, and springs
- Restores electrical contact between the motor and armature
- Helps improve motor performance and electric braking
- Direct-fit OEM replacement
- Manufactured to original equipment specifications
Technical Specifications
Part Number: N031214
Manufacturer: DeWalt
Product Type: Carbon Brush & Holder Set
Application: Universal Electric Motor
Contents: Two complete brush box assemblies
OEM Part: Yes
Quantity: One set (includes two brush assemblies)
Compatible Applications
The DeWalt N031214 Brush Box Set fits numerous compatible DeWalt cordless drills and hammer drills, including:
DeWalt
- DCD910KX
- DCD920KX
- DCD930KX
- DCD940KX
- DCD950KX
- DCD950VX
- DCD960KL
- DCD970
- DCD970KL
- DCD980L2
- DCD980M2
- DCD985B
- DCD985L2
- DCD985M2
Always verify your tool model, type number, and original part number before ordering to ensure proper compatibility.
Function of the Carbon Brush & Holder Set
The N031214 Brush Box Set is designed to:
- Transfer electrical current to the rotating armature
- Maintain consistent motor performance
- Restore proper power output
- Help restore electric braking on compatible tools
- Reduce intermittent motor operation caused by worn brushes
- Restore the factory motor brush system
Common Signs Replacement Is Needed
Replace the brush box set if you notice:
- Intermittent motor operation
- Reduced power or torque
- Excessive sparking inside the motor
- Motor fails to start consistently
- Poor electric braking performance
- Carbon brushes worn beyond their service limit
Because carbon brushes wear through normal operation, replacing them before they become excessively worn can help prevent damage to the motor commutator.
Installation & Service Notes
Remove the battery from the tool before performing any maintenance.
Disassemble the motor housing according to the manufacturer's service instructions and remove the worn N031214 Brush Box Set. Inspect the armature commutator for excessive wear, burning, or scoring before installing the replacement brush assemblies. Install both new brush boxes in their original orientation, ensuring the brushes move freely within their holders and the springs apply proper pressure against the commutator. Reassemble the tool and operate it without a load for several minutes to allow the new brushes to seat properly. Typical installation time is approximately 15–30 minutes.
Important: Always replace both brush assemblies together for balanced wear and optimal motor performance. Inspect the commutator whenever replacing carbon brushes.
Maintenance Recommendations
- Inspect carbon brushes periodically on frequently used tools.
- Replace both brush assemblies at the same time.
- Keep motor ventilation openings clean to reduce dust buildup.
- Avoid prolonged motor overload, which accelerates brush wear.
- Inspect the commutator whenever brushes are replaced.
- Use genuine OEM replacement parts to maintain factory fit, reliable electrical contact, and long-term motor performance.
