Description
Overview:
This genuine Husqvarna pump (part 513 78 93-01) is a fuel delivery component for selected Husqvarna 2‐stroke machines. Built from durable polymer and metal components, it maintains the transfer of fuel from the tank to the carburettor, supporting smooth running, clean pick‐up and dependable starting. It is designed to fit specific Husqvarna chainsaws and related machines, including the 439 and 543XP, ensuring the correct fit and function without modification. As an OEM part, it matches original specifications, helping preserve performance and reliability in both professional and domestic use. Replacing a worn or damaged pump can resolve common fuel-related issues such as hesitation, poor idle and intermittent stalling, keeping your tool working efficiently and protecting engine longevity.
Key Features:
- Genuine Husqvarna OEM part for assured compatibility and performance
- Direct replacement for worn or damaged fuel pumps to restore proper operation
- Robust construction with fuel-resistant materials for long service life
- Supports consistent fuel delivery for stable idle and strong acceleration
- Helps improve cold and hot starting reliability
- Engineered to work with OEM carburettor settings and factory tolerances
- Easy to fit with standard hand tools; no modifications required
- Suitable for professional forestry, arborist and grounds-maintenance use
Typical Applications:
Used during service or repair when addressing hard starting, surging, poor throttle response or stalling caused by a failing fuel pump. Ideal for routine maintenance on frequently used saws and brushcutters in forestry, landscaping, grounds care, and arborist work. Helps maintain fuel system integrity after long storage or when switching fuels.
Also known as:
Fuel pump assembly, carburettor pump, impulse fuel pump, diaphragm pump, carb fuel transfer pump, chainsaw fuel pump unit, pump module for small engines.
Fits Models:
243R, 243RJ, 253R, 253RJ, 439, 540XP Mark III, 543AE15, 543RB, 543RBK, 543RBX, 543RS, 543XP, 543XPG, 553RBX, 553RS, T435, T525, T540 XP Mark III
Alternate Part Numbers:
513 78 93-01, 513789301
Product Specifications
| L&S Part No. | 513 78 93 01 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 513789301 |
| Unit of Sale | 1 |
| Applications | 243R, 243RJ, 253R, 253RJ, 439, 540XP Mark III, 543AE15, 543RB, 543RBK, 543RBX, 543RS, 543XP, 543XPG, 553RBX, 553RS, T435, T525, T540 XP Mark III |
| Machine Type | Chainsaws |
| Fits Brands | Husqvarna |
| Fits Models | 439 | 543XP | 543XPG | T435 | T525 | 243R | 243RJ | 253R | 253RJ | 543RBK | 543RBX | 543RS | 553RBX | 553RS | 543AE15 | T540 XP Mark III | 540XP Mark III | 543RB |
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