Description
Overview:
This Knee-Joint is a genuine Husqvarna replacement part for professional and homeowner chainsaws. Made from a fuel- and oil-resistant elastomer, it forms the flexible intake connection between the carburettor and the cylinder, maintaining an airtight seal while absorbing vibration. By preventing air leaks, it helps keep the engine tuned, improving starting, idle stability, and throttle response. It is engineered for an exact fit on popular models such as the Husqvarna 365 and 576XP, so it sits correctly without modification. The part is suitable for routine maintenance or to replace a cracked, hardened, or leaking joint that can cause lean running and engine damage. Manufacturer Part Number (MPN): 501 87 53-04 (501875304). Genuine Husqvarna part for compatibility, reliability, and long service life.
Key Features:
- Genuine Husqvarna part for correct fit and reliable performance
- Fuel-, oil-, and heat-resistant elastomer for durability in tough cutting conditions
- Maintains an airtight intake path to reduce air leaks and lean running
- Helps restore smooth idle, clean acceleration, and consistent power
- Precision-moulded connection to the carburettor and cylinder spigot
- Designed for quick, straightforward replacement with basic tools
- Compatible across multiple mid- to large-capacity Husqvarna saws
- Direct replacement for MPN 501 87 53-04 / 501875304
- Supports long service intervals by resisting cracking and hardening
- Suitable for professional forestry, arborist, landscaping, and farm use
Typical Applications:
Used during service or repair when the existing intake joint is split, perished, or leaking. Ideal for restoring correct air-fuel metering on Husqvarna saws used for felling, snedding, cross-cutting, firewood processing, grounds maintenance, and site work. Helps prevent hard starting, hunting idle, and overheating caused by unmetered air.
Also known as:
Intake boot, carburettor boot, manifold boot, intake elbow, intake joint, carb joint, rubber intake connector, carb adapter, inlet manifold connector.
Fits Models:
254, 257, 261, 262XP, 268, 272XP, 365, 385, 385XP, 390XP, 570, 570II, 575XP, 576XP, 576XP AutoTune, 61
Alternate Part Numbers:
501 87 53-04, 501875304
Product Specifications
| L&S Part No. | 501 87 53 04 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 501875304 |
| Unit of Sale | 1 |
| Machine Type | Chainsaws |
| Fits Brands | Husqvarna |
| Key Features | - Genuine Husqvarna part for correct fit and reliable performance - Fuel-, oil-, and heat-resistant elastomer for durability - Maintains an airtight intake path to reduce air leaks - Compatible with Husqvarna models 365, 576XP, and more - Direct replacement for MPN 501 87 53-04 / 501875304 |
| Fits Models | 254 | 257 | 261 | 262XP | 268 | 385 | 385XP | 390XP | 570 | 570II | 576XP | 61 | 576XP AutoTune |
