Description
Overview:
This bellows is a Genuine Husqvarna spare part designed for the air/intake system of mid-size petrol chainsaws, providing a flexible, airtight connection that helps keep dust out and maintains consistent engine performance. Made from durable, fuel- and oil-resistant elastomer rubber, it replaces worn or cracked bellows to restore reliable sealing and airflow. It is a direct-fit component for Husqvarna 346 and 353 models, matching original dimensions for straightforward installation during routine servicing. Supplied to OEM specification with part references 503 86 63-02 and MPN 503866302, it supports smooth running, stable idle, and good throttle response by preventing unwanted air leaks around the carburettor/airbox area. This Genuine Part offers dependable compatibility and longevity for professional and domestic users alike.
Key Features:
- Genuine Husqvarna Part for assured fit and reliability
- OEM No. 503 86 63-02 and MPN 503866302 for easy identification
- Flexible, oil- and petrol-resistant rubber for long service life
- Maintains an airtight seal to support correct air-fuel mixture
- Helps cure hard starting, erratic idle, or poor acceleration caused by intake leaks
- Direct replacement with OE-matched sizing for quick fitting using basic tools
- Suitable for regular maintenance and preventative servicing
- Robust construction resists cracking and hardening from heat and vibration
- Compatible with selected Husqvarna and equivalent Jonsered models
- Supports smooth operation and reduces unnecessary engine wear
Typical Applications:
Used during routine servicing or repairs to restore the intake seal on chainsaws working in forestry, arboriculture, landscaping, and grounds maintenance. Ideal when refurbishing saws before the season, after carburettor work, or whenever air leaks, uneven idle, or hesitation under load are present.
Also known as:
Intake boot, carburettor boot, intake bellows, airbox bellows, rubber coupling, carb connector, intake manifold boot, flexible intake duct, carburettor joint, bellows connector.
Fits Models:
340
346
346 XP
346 XP New Edition
353
Jonsered CS2152
Jonsered CS2153
Alternate Part Numbers:
503 86 63-02, 503866302
Product Specifications
| L&S Part No. | 503 86 63 02 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 503866302 |
| Unit of Sale | 1 |
| Machine Type | Chainsaws |
| Fits Brands | Husqvarna |
| Key Features | - Genuine Husqvarna part for 346 and 353 chainsaws - Made from oil- and petrol-resistant elastomer rubber - Direct replacement with OE-matched sizing - Maintains airtight seal for consistent engine performance - Compatible with selected Jonsered models |
| Fits Models | 340 | 346XP | 353 |
