N112877 Ring Gear Replacement for Impact Drivers This directfit replacement ring gear restores proper torque transfer and engagement in compatible impact driver models. It is supplied as a compatible part manufactured to match the original N112877 dimensions for straightforward installation and reliable performance. Key benefits Restores tool function: Replaces worn or damaged ring gear to eliminate slipping, reduced torque, and inconsistent bit engagement. Precise fit: Manufactured to match the original N112877 dimensions for a direct swap into the intended impact driver gear assembly. Cost effective : Allows of an existing impact driver without replacing the entire tool. Reliable operation: Designed to maintain alignment and engagement inside the planetary gear assembly for consistent performance. Features and attributes Function: Ring gear component for the planetary gearset that transfers torque from the motor to the output shaft in impact drivers. Compatibility: Fits impact driver models DCF887, DCF886, DCF895, DCF809, DCF7871D2, DCF911M2T, DCF911, DCF911N, DCF888, DCF787C2, MCF891, DCF895M2, and DCF895D2. Verify your model number before . Condition: compatible part supplied ready for installation. Fit and finish: Produced to match original part geometry to ensure proper meshing with existing planetary gears and pinions. Performance and reliability Restores smooth gear engagement and consistent torque delivery when installed correctly. Helps reduce noise and vibration caused by worn gear teeth. Supports sustained operation under typical use conditions for impact drivers. Installation and maintenance Intended for users familiar with disassembling and reassembling impact driver gear housings or for professional technicians. Inspect mating gears and bearings during replacement and any other worn components to maximize service life. Use correct tools and follow safety precautions when servicing power tools. Typical use scenarios Workshop : a stripped or worn ring gear in a professional impact driver to it to service without buying a tool. Jobsite maintenance: Carry as a spare part for on site repairs to minimize downtime for contractors and maintenance crews. Refurbishment project: Use in rebuilding secondhand or use impact drivers to restore original gear engagement and torque performance. Note Confirm your impact driver model number matches one of the listed compatible models before ordering to ensure correct fit.