HAISHINE 3/8-inch 6T Clutch Drum Sprocket Kit with Washer and E-Clip for STIHL Chainsaws 017-025, MS170/MS250 (1123 640 2003)

Overview

The HAISHINE clutch drum kit is a durable replacement designed to restore clutch drive performance on popular STIHL chainsaw models. Engineered for regular maintenance, it aims to provide reliable starts and steady cutting power when you need it most. This kit is built to be a practical, end-to-end solution you can count on between jobs.

What sets this kit apart is its complete, ready-to-install package, with all essential parts included and pre-checked for compatibility with a broad range of STIHL saws. The design emphasizes ease of use and predictable results, making it a sensible option for DIY enthusiasts and professional technicians alike.

What’s in the box

• 1 x Clutch Drum
• 1 x Needle Bearing (10X13X10)
• 1 x Clutch Washer
• 1 x E-Clip

In addition to the four components, the kit references replacement part numbers such as 1123 640 2003, 9460 624 0801, and 9512 933 2260, which helps you verify compatibility with your equipment before installation.

Compatibility and fit

This clutch kit is designed to fit a broad selection of STIHL chainsaws, spanning classic models and modern iterations. It supports 017, 018, 021, 023, 025 series, and the MS170, MS180, MS210, MS211, MS230, MS250 lines, including MS190T and related 019T variants. A single replacement kit can simplify stocking for multiple machines, reducing downtime and inventory complexity.

• Standard 3/8" pitch clutch drum with 6 teeth aligns with common drive systems
• All-in-one kit reduces the need to source separate components

Installation and upkeep

Replacing the kit is straightforward with common hand tools. The parts are intended to enable secure engagement and smooth operation after installation, helping to minimize misalignment or looseness over time. Regular checks during routine maintenance can help keep your saw performing at its best.

Quality and support

HAISHINE backs this kit with responsive customer service. If you have questions about fit or installation steps, you can expect a reply within 24 hours. This support focus helps you move from purchase to confident use with less guesswork.

Real-world use scenarios

Imagine finishing a demanding cut and noticing a slight drop in clutch responsiveness. This kit offers a practical upgrade path that could restore snappy starts and consistent RPMs, allowing you to complete tasks without unnecessary interruptions.

Notes

While designed for compatibility with STIHL models, always verify your exact model and bar/chain configuration before purchasing. If in doubt, consult a professional technician to confirm suitability.