Description
Overview:
The Gear and Pinion Assembly for Hikoki/Hitachi G10SS 4" (101.6 mm) angle grinders is a matched drive set that transfers power from the motor to the spindle for reliable cutting and grinding. Manufactured from durable steel, it is built to handle the high loads and speeds typical of small angle grinders. This genuine part (OEM 328178) restores smooth, efficient operation when original gears have worn, chipped, or become noisy. Designed for a precise fit in popular Hikoki/Hitachi models, including G10SS and G12SS, it helps maintain correct torque and performance. Suitable for routine maintenance or repair, it supports consistent output and longer tool life with minimal downtime when fitted correctly.
Key Features:
- Genuine Part: manufacturer-specified gear and pinion for consistent performance
- Steel construction for strength, wear resistance, and long service life
- Precision-machined teeth for accurate mesh and reduced noise
- Restores correct drive, torque, and spindle speed in the grinder
- Designed for 4" (101.6 mm) Hikoki/Hitachi compact angle grinders
- Compatible with select models for a dependable, direct fit
- Helps reduce vibration and heat caused by worn gear sets
- Suitable for scheduled maintenance or corrective repair
- Straightforward replacement with standard workshop tools
- OEM No. 328178 for easy identification and ordering
Typical Applications:
Used to repair loss of drive, slipping, or grinding noises in compact angle grinders during metal fabrication, site work, and general maintenance tasks. Suitable for cutting, grinding, deburring, and surface preparation on steel, non-ferrous metals, and masonry when the correct disc is fitted. Helps keep tools productive and safe.
Also known as:
Grinder gear set, bevel gear set, drive gear kit, pinion and gear kit, crown wheel and pinion, transmission gear set, spindle drive gears, angle grinder gear kit.
Fits Models:
G10SS, G12SS, G12STX
Alternate Part Numbers:
328178
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