Description
Overview:
This Bar Bolt is a genuine Husqvarna replacement part designed to secure the guide bar on compatible Husqvarna chainsaws, including the 545 and 555. Built from durable steel for strength under vibration and load, it keeps the bar firmly clamped so the chain tracks correctly and the saw operates safely. It replaces worn, stretched, or damaged bolts that can lead to bar movement, uneven cutting, or chain derailment. As an OEM component (OEM No. 505 21 73-01), it offers a precise fit and reliable performance with no modifications needed. Suitable for professional arborists, forestry contractors, and domestic users, this bolt helps maintain cutting accuracy and prolongs the life of the bar and chain by ensuring consistent, secure attachment during everyday use.
Key Features:
- Genuine Husqvarna part for assured compatibility and performance (OEM 505 21 73-01)
- Designed to clamp the guide bar securely for stable, accurate cutting
- Robust steel construction to withstand shock, vibration, and repeated tightening
- Direct-fit replacement to restore correct fastening without adjustments
- Helps maintain chain alignment and reduces premature wear to bar and sprocket
- Suitable for regular servicing and preventative maintenance schedules
- Reliable under professional workloads and frequent start-stop use
- Compatible with a wide range of mid-size Husqvarna petrol and battery saws
Typical Applications:
Used during bar and chain servicing, after bar swaps, or when replacing a missing, rounded, or corroded bolt. Ideal for workshop overhauls, field repairs, and routine maintenance to keep Husqvarna chainsaws cutting straight and safely. Helps prevent bar slippage that can cause poor cut quality or tool downtime.
Also known as:
Chainsaw bar bolt, guide bar bolt, bar clamp bolt, bar fastener, bar securing screw, saw bar retainer, chainsaw fixing bolt, bar hold-down bolt, bar mounting bolt.
Fits Models:
340i, 435i, 545, 545 Mark II, 545G Mark II, 550XP, 550XP Mark II, 550XP Mark II Trio Brake, 550XP Mark II TrioBrake, 550XPG, 550XPG Mark II, 550XPG Mark II Trio Brake, 550XPG Mark II TrioBrake, 555, 560XP, 560XP Mark II, 560XPG, 560XPG Mark II, T540XP, T540XPII
Alternate Part Numbers:
505 21 73-01, 505-21-73-01, 505217301
Product Specifications
| L&S Part No. | 505 21 73 01 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 505217301 |
| Unit of Sale | 1 |
| Applications | 340i, 435i, 545, 545 Mark II, 545G Mark II, 550XP, 550XP Mark II, 550XP Mark II Trio Brake, 550XP Mark II TrioBrake, 550XPG, 550XPG Mark II, 550XPG Mark II Trio Brake, 550XPG Mark II TrioBrake, 555, 560XP, 560XP Mark II, 560XPG, 560XPG Mark II, T540XP, T540XPII |
| Machine Type | Chainsaws |
| Fits Brands | Husqvarna |
| Fits Models | 545 | 550XP, 550XPG | 555 | 560XP, 560XPG | T540XP | T540XPII | 340i | 550XP Mark II | 435i | 545 Mark II | 545G Mark II | 550XPG Mark II | 550XPG Mark II Triobrake | 550XP Mark II Triobrake | 560XPG Mark II | 560XP Mark II |
