Dewalt N413331 Gear Case Angle Grinder Replacement

Product Description

The DEWALT N413331 is a replacement gear case designed for use in DEWALT angle grinders. The gear case houses and protects the internal gear assembly that transfers motor power to the grinding spindle, maintaining proper alignment and load distribution during operation. This is an OEM-style replacement part installed by power tool repair technicians and service centers when the original gear case is cracked, stripped, or otherwise damaged. The housing measures 4.6 x 3.3 x 3.5 inches and is a direct-fit component for the compatible grinder models listed below.

This gear case is intended for use in 4-inch and 4.5-inch DEWALT angle grinders across several model variants. It is suited for shop repair, field service, and warranty repair scenarios where the gear case must be replaced to restore full mechanical function to the tool. Compatible models include DWE4212B3, DWE402K, DWE402G, DWE4214BR, DWE4214B3, DWE4214, DWE402W, DWE4212BR, DWE402N, DWE4212B2, DWE402, DWE4214B2, DWE4214AR, and DWE4212AR.

Key Features

• Direct-fit replacement gear case for multiple DEWALT angle grinder models
• Restores structural integrity of the gear assembly housing
• Compact form factor at 4.6 x 3.3 x 3.5 inches for precise fitment
• OEM part number N413331 ensures correct specification match
• Compatible across a broad range of DWE402 and DWE4214 series grinders

Compatibility

Compatible with the following DEWALT angle grinder models: DWE4212B3, DWE402K, DWE402G, DWE4214BR, DWE4214B3, DWE4214, DWE402W, DWE4212BR, DWE402N, DWE4212B2, DWE402, DWE4214B2, DWE4214AR, DWE4212AR.

Installation Notes

Installation should be performed by a qualified power tool repair technician. Disconnect and unplug the tool completely before disassembling the gear case. Internal gear components may require transfer from the old housing to the replacement case - handle gear assemblies carefully to avoid damage to teeth or bearings. Follow standard power tool service procedures and consult the tool service manual for torque and reassembly sequence guidance.