Description
Overview:
This Chain Brake is a Genuine Husqvarna part for mid-size petrol chainsaws, including the Husqvarna 340 and 345. It forms the primary safety system that halts the chain swiftly in the event of kickback or when the front guard is pushed forward. Built with a robust steel brake band and spring mechanism combined with a hard-wearing polymer lever/guard, it is designed to perform reliably in tough cutting conditions. Precision fitment to the specified Husqvarna models ensures correct operation and long service life when installed and maintained as per the tool's manual. Identified by MPN 537 10 78-03 (537107803), this OEM component helps restore original braking performance and safety on saws used by tradespeople, arborists, landscapers, and homeowners.
Key Features:
- Genuine Husqvarna OEM component for assured compatibility and performance (MPN 537 10 78-03 / 537107803).
- Steel brake band and high-tension spring provide rapid, positive chain stopping under inertia or manual activation.
- Durable polymer guard/lever designed for repeated use in demanding environments.
- Accurate fit to listed Husqvarna models with correct clearances for consistent engagement and release.
- Helps restore factory safety function where the original brake has worn, stretched, or been damaged.
- Engineered to withstand oil, dust, vibration, and temperature changes typical of chainsaw work.
- Suitable for professional and domestic applications where reliable chain stopping is critical.
Typical Applications:
Used on compatible Husqvarna chainsaws for felling, snedding, limbing, firewood cutting, and site work. Provides immediate chain stop during kickback events and when the operator engages the front guard, improving user safety and tool control in forestry, landscaping, agriculture, construction, and DIY tasks.
Also known as:
Front hand guard, inertia chain brake, chain stop, emergency stop brake, kickback brake lever, safety hand guard, chain arrest brake.
Fits Models:
340, 340E, 345, 345E, 346XP, 350, 353, 357XP, 359
Alternate Part Numbers:
537 10 78-03, 537107803
Product Specifications
| L&S Part No. | 537 10 78 03 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 537107803 |
| Unit of Sale | 1 |
| Machine Type | Chainsaws |
| Fits Brands | Husqvarna |
| Key Features | - Genuine Husqvarna OEM part for chainsaw models 340, 345, 346XP - Steel brake band ensures rapid chain stopping - Durable polymer lever for tough conditions - Precision fit for consistent engagement and release - Restores original safety function on worn or damaged brakes |
| Fits Models | 340 | 340E | 345 | 345E | 350 | 353 | 357XP | 359 |
