Description
Overview:
This genuine Husqvarna screw (part no. 526 81 81-01 / 526818101) is a Torx machine screw used across a wide range of Husqvarna chainsaws and selected power equipment. Made from durable steel with a protective black finish, it features an M4 x 15 mm size and a Torx T27 head for positive drive and reliable torque transfer. It is designed to secure small housings, covers, guards, and control components subject to vibration, helping maintain safe and consistent operation. Suitable for professional and domestic users, it offers the correct OEM fit on popular models such as the 545 and 555, as well as newer and higher-output machines. Use with a T27 driver for quick, accurate fitting without cam-out.
Key Features:
- Genuine Husqvarna OEM fastener for assured compatibility and performance
- M4 x 15 mm metric size with Torx T27 head for secure, slip-resistant drive
- Durable steel construction with a protective black finish for everyday workshop use
- Resists loosening under vibration when installed to specification
- Clean, consistent threads for smooth assembly and repeatable torque
- Suitable for covers, guards, housings, and handle or brake assemblies where specified
- Easy to fit with a standard T27 Torx driver; no special tools required
- Helps keep equipment reliable and compliant with manufacturer service guidance
- Brand: Husqvarna; MPN: 526818101
- Ideal for routine maintenance and like-for-like replacement
Typical Applications:
Commonly used to secure top covers, starter housings, chain brake components, clutch or muffler guards, and other light assemblies on Husqvarna chainsaws and related equipment. Suitable for service work, part replacement after wear or loss, and restoring machines to OEM specification where an M4 x 15 mm T27 Torx screw is called up in the parts list.
Also known as:
Torx T27 screw, M4 x 15 mm machine screw, Husqvarna fixing, OEM chainsaw screw, metric Torx cap screw, retaining screw, service screw, T27 driver screw.
Fits Models:
545, 545 Mark II, 545G Mark II, 550 XP, 550 XP G, 550 XP G Mark II, 550 XP Mark II, 550 XP Mark II TrioBrake, 550 XPG, 550 XPG Mark II, 550 XPG Mark II TrioBrake, 555, 556, 560 XP, 560 XP G, 560 XP G Mark II, 560 XP Mark II, 560 XPG, 560 XPG Mark II, 562 XP, 562 XP G, 562 XP G Mark II, 562 XP Mark II, 562 XPG, 562 XPG Mark II, 565, 572 XP, 572 XP G, 572 XPG, 585, 592 XP, 592 XP G, 592 XPG, CS 2252, CS 2253, CS 2253 WH, CS 2258, CS 2260, K 535i, P 524X, P 524X EFI, P 524XR EFI, R 112iC
Alternate Part Numbers:
526 81 81-01, 526818101
Product Specifications
| L&S Part No. | 526 81 81 01 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 526818101 |
| Unit of Sale | 1 |
| Applications | 545, 545 Mark II, 545G Mark II, 550 XP, 550 XP G, 550 XP G Mark II, 550 XP Mark II, 550XP, 550XP Mark II, 550XP Mark II Trio Brake, 550XP Mark II TrioBrake, 550XPG, 550XPG Mark II, 550XPG Mark II Trio Brake, 550XPG Mark II TrioBrake, 555, 556, 560 XP, 560 XP G, 560 XP G Mark II, 560 XP Mark II, 560XP, 560XP Mark II, 560XPG, 560XPG Mark II, 562 XP, 562 XP G, 562 XP G Mark II, 562 XP Mark II, 562XP, 562XP Mark II, 562XPG, 562XPG Mark II, 565, 572 XP, 572 XP G, 572XP, 572XPG, 585, 592 XP, 592 XP G, 592XP, 592XPG, CS 2252, CS 2253, CS 2253 WH, CS 2258, CS 2260, CS2252, CS2253, CS2253WH, CS2258, CS2260, K 535i, K535i, P 524X, P 524X EFI, P 524XR EFI, P524X, P524XEFI, P524XREFI, R 112iC, R112iC |
| Machine Type | Chainsaws |
| Fits Brands | Husqvarna |
| Fits Models | 545 | 550XP, 550XPG | 555 | 556 | 560XP, 560XPG | 562XP, 562XPG | 565 | 572XP, 572XPG | 592 XP | K535I | 550XP Mark II | 545 Mark II | 545G Mark II | 550XPG Mark II | 550XPG Mark II Triobrake | 550XP Mark II Triobrake | 560XPG Mark II | 560XP Mark II | 562XPG Mark II | 562XP Mark II | R 112iC |
