Description
Overview:
This Genuine Husqvarna Carburettor Diaphragm Kit (MPN 503 59 74 02 / 503597402) restores correct fuel metering and pumping in two‐stroke engines used in Husqvarna/Partner machines such as the K1250 power cutter and the 3120XP chainsaw. The kit includes fuel‐resistant diaphragms and gaskets made from durable elastomer and composite materials to withstand heat, vibration and modern pump fuel. Replacing tired or hardened diaphragms helps the carburettor maintain consistent pressure and flow, improving starting, idle stability and throttle response. Designed for a precise fit in the specified models, this genuine OEM kit is suitable for routine servicing or repairs carried out by tradespeople, workshop technicians and competent DIY users who need reliable performance from their saws and cutters.
Key Features:
- Genuine Husqvarna OEM part for assured compatibility, fit and performance
- Replaces worn diaphragms to restore accurate fuel delivery and metering
- Durable, fuel‐resistant materials for long‐lasting service in tough conditions
- Helps resolve hard starting, poor idle, stalling and hesitation under load
- Precise sealing surfaces reduce air leaks that upset carburettor tuning
- Straightforward to install with basic hand tools and standard service steps
- Supports consistent power and economy when cutting or felling on site
- Supplied as a matched diaphragm and gasket set for pump and metering sides
Typical Applications:
Ideal for scheduled servicing, seasonal recommissioning, or carburettor rebuilds after storage or fuel issues on professional cut‐off saws and large chainsaws. Commonly used in construction, rail cutting, forestry and arborist work where reliable starting and steady running are essential.
Also known as:
Carb kit, carburettor diaphragm kit, carburettor rebuild kit, metering diaphragm set, pump diaphragm set, membrane kit, carburetor repair kit.
Fits Models:
3120XP, 3122K, K1250, K1250 Active, K1250 Rail, K1250Active, K1250Rail, K1260, K1260 Rail, K1260Rail
Alternate Part Numbers:
503597402, 503 59 74 02
Product Specifications
| L&S Part No. | 503 59 74 02 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 503597402 |
| Unit of Sale | 1 |
| Applications | 3120XP, 3122K, K1250, K1250 Active, K1250 Rail, K1250Active, K1250Rail, K1260, K1260 Rail, K1260Rail |
| Machine Type | Disc Cutters |
| Fits Brands | Husqvarna |
| Fits Models | K1250 | K1260 | 3122K | K1250 Active | K1250 Rail | K1260 Rail | 3120XP |
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