Description
Overview:
This carburettor screw is a small, precision metal fastener used to secure components within the carburettor assembly on Husqvarna cutting equipment. Built from durable metal with a silver finish, it helps maintain a tight, reliable hold in a high‐vibration environment, supporting stable fuel delivery and smooth running. It is suitable for Husqvarna disc cutters and selected chainsaws, including models such as the 268K and K650. Replacing worn, stripped, or missing screws prevents air leaks, misalignment, and erratic performance, helping your machine start and run consistently under load. Supplied to match Husqvarna specification, it restores the correct clamping force where required inside the carburettor body. A straightforward swap during routine servicing, it is a practical item to keep on hand for workshop or site maintenance. Part number: 503 57 87 01.
Key Features:
- Designed to match Husqvarna specification for a secure fit on listed machines
- Durable metal construction for long service life in tough site conditions
- Precision thread for firm engagement and reduced risk of cross‐threading
- Helps maintain proper carburettor sealing and alignment for steady running
- Suitable for replacing damaged, corroded, or missing carburettor screws
- Compact and easy to fit with standard hand tools
- Supports reliable cutting performance by keeping the carburettor fixed in place
- Identified by Husqvarna part number 503 57 87 01 for easy reference
Typical Applications:
Used during carburettor rebuilds and routine servicing to replace worn or lost fasteners. Ideal for site repairs where vibration has loosened or damaged existing screws. Helps restore consistent idle and throttle response on disc cutters used for cutting concrete, masonry, or metal, and on compatible chainsaws in professional or DIY settings.
Also known as:
Carburettor bolt, carb fixing screw, carburettor retaining screw, mounting screw, carb body machine screw, fuel system fastener, engine carb screw, carburettor clamp screw.
Fits Models:
268K, 272K, 385, 385XP, K650, K650 Cut-n-Break, K950, K950 Chain, K950 Rescue, K950 Ring
Product Specifications
| L&S Part No. | 503 57 87 01 |
|---|---|
| Manufacturer | Husqvarna |
| OEM No. | 503578701 |
| Unit of Sale | 1 |
| Applications | 268K, 272K, 385, 385XP, K650, K650 Cut-n-Break, K650Cut-n-Break, K950, K950 Chain, K950 Rescue, K950 Ring, K950Chain |
| Machine Type | Disc Cutters |
| Fits Brands | Husqvarna |
| Fits Models | K950 | K650 Cut-n-Break | K950 Rescue | K950 Ring | 385 | 385XP | 268K | 272K | K950 Chain |
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