Description
Overview:
This genuine Husqvarna pump diaphragm is a small, fuel‐system component used in the carburettor to control fuel flow and priming on petrol‐powered outdoor machinery. Built from a fuel‐resistant elastomer, it flexes with crankcase pulses to meter fuel accurately, helping the engine start easily, idle steadily and accelerate cleanly. It is suitable for a wide range of Husqvarna equipment, including chainsaws such as the 136 and 141, as well as selected trimmers, brushcutters, blowers and hedge trimmers. Supplied as Husqvarna part number 502213601 (also referenced as 502 21 36‐01), it is a direct-fit replacement for a worn or hardened diaphragm and is designed to restore reliable operation without modifying the carburettor or fuel lines. A practical service item for routine maintenance.
Key Features:
- Genuine Husqvarna part for correct fit and dependable performance (MPN: 502213601)
- Fuel‐resistant diaphragm material maintains flexibility and sealing over time
- Restores proper fuel metering, starting, idle stability and throttle response
- Helps resolve hard starting, stalling, surging and poor acceleration caused by a fatigued diaphragm
- Direct replacement in the carburettor pump section; no special tools typically required
- Compatible across a broad range of Husqvarna chainsaws and handheld machines
- Suitable for regular preventive maintenance where ethanol fuels are used
- Compact, lightweight component for quick bench or on‐site fitting
Typical Applications:
Used during carburettor servicing of Husqvarna petrol machines to replace a stiff, cracked or perforated diaphragm. Ideal when engines are difficult to start, won't hold idle, or bog under load. Common in routine maintenance schedules for chainsaws, brushcutters, trimmers, blowers and hedge trimmers that see frequent use or prolonged storage.
Also known as:
Carburettor membrane, fuel pump membrane, metering membrane, pulse diaphragm, primer diaphragm, carb diaphragm sheet.
Fits Models:
136, 141, 18H, 225 E, 225 L, 225 LD, 225B, 225BV, 225E, 225H60, 225H75, 225HBV, 225L, 225LD, 225R, 225RD, 225RJ, 227 L, 227 LD, 227L, 227LD, 227R, 227RD, 227RJ, 23, 23 COMPACT, 232R, 232RD, 232RJ, 235FR, 235P, 235R, 235RII, 23COMPACT, 240, 240 L, 240L, 240RBD, 240RJ, 245, 245R, 245RX, 333, 335XPT, 36, 41, 543RBS
Alternate Part Numbers:
504 13 08-07, 502213601, 504130807
Product Specifications
| L&S Part No. | 502 21 36 01 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 502213601 |
| Unit of Sale | 1 |
| Applications | 136, 141, 18H, 225 E, 225 L, 225 LD, 225B, 225BV, 225E, 225H60, 225H75, 225HBV, 225L, 225LD, 225R, 225RD, 225RJ, 227 L, 227 LD, 227L, 227LD, 227R, 227RD, 227RJ, 23, 23 COMPACT, 232R, 232RD, 232RJ, 235FR, 235P, 235R, 235RII, 23COMPACT, 240, 240 L, 240L, 240RBD, 240RJ, 245, 245R, 245RX, 333, 335XPT, 36, 41, 543RBS |
| Machine Type | Chainsaws |
| Fits Brands | Husqvarna |
| Fits Models | 136 | 18H | 225H60 | 225H75 | 235P | 141 | 23 COMPACT | 333 | 335XPT | 36 | 41 | 225R | 225RD | 225RJ | 227RD | 227R | 227RJ | 232R | 232RD | 232RJ | 235FR | 235R | 235RII | 240 | 240RBD | 240RJ | 245 | 245R | 245RX | 225B | 225BV | 225HBV | 225 E | 225 L | 225 LD | 227 L | 227 LD | 240 L | 543RBS |
