Description
Overview:
This Muffler Assembly is a genuine Husqvarna replacement for the T540XP and T540XPII top‐handle chainsaws. Built from robust pressed steel with a heat‐resistant coating, it manages exhaust flow and reduces engine noise, helping the saw run smoothly and within expected sound levels. The assembly is shaped to fit the compact chassis of these arborist saws and aligns with the factory mounting points for a secure fit. By maintaining correct exhaust back pressure, it supports clean running, steady idling, and reliable throttle response. Designed for professional tree work and demanding DIY use, this genuine part restores performance when the original muffler has become dented, corroded, or blocked, and keeps fumes directed away from the operator for safer, more comfortable cutting.
Key Features:
- Genuine Husqvarna part for assured fit and performance on T540XP/T540XPII
- Durable steel construction with high‐temperature finish for long service life
- Reduces exhaust noise and helps maintain correct engine back pressure
- Direct‐fit replacement that uses original fixings and mounting points
- Compact, lightweight design suited to top‐handle arborist saws
- Supports smooth starting, stable idle, and consistent power delivery
- Corrosion‐resistant exterior to withstand resin, heat, and outdoor use
- Helps channel hot gases away from the user and nearby plastics
- Reliable choice for preventative maintenance or like‐for‐like replacement
Typical Applications:
Ideal for restoring a Husqvarna T540XP or T540XPII after impact damage, heat fatigue, or internal carbon build‐up. Commonly used during routine servicing to keep noise, emissions flow, and performance within expected levels on professional tree surgery, grounds maintenance, and landscaping jobs.
Also known as:
Exhaust muffler assembly, silencer box, exhaust chamber, exhaust can, noise suppressor, exhaust housing, outlet box.
Fits Models:
T540XP, T540XPII
Alternate Part Numbers:
505 40 79-01, 505407901
Product Specifications
| L&S Part No. | 505 40 79 01 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 505407901 |
| Unit of Sale | 1 |
| Machine Type | Chainsaws |
| Fits Brands | Husqvarna |
| Key Features | - Genuine part for Husqvarna T540XP/T540XPII chainsaws - Pressed steel with heat-resistant coating - Reduces noise and maintains engine back pressure - Direct-fit using original mounting points - Corrosion-resistant for outdoor use |
| Fits Models | T540XP | T540XPII |
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