Model Saws 

450,545xp

The Husqvarna 18" Laminated Guide Bar 0.325" 1.3 mm (part reference 578 40 01-72) is a genuine Husqvarna replacement bar for petrol and battery chainsaws that specify this size. Built from laminated steel in a slim profile, it provides stable chain guidance for accurate, consistent cutting. The X-Force Pro-Laminated design is made for durability while keeping weight manageable. It suits saws set up for an 18 in (45.72 cm) bar, using 0.325 in (8.25 mm) pitch chain with a 1.3 mm gauge. Fitted correctly with a matching chain and drive sprocket, it helps the saw cut straight and efficiently. This OEM bar is a reliable replacement for worn or damaged bars in trade, landscaping, forestry, and general domestic use.

Key Features:
- Genuine Husqvarna OEM guide bar for assured fit and performance
- Laminated steel construction for long service life in everyday cutting
- X-Force Pro-Laminated design for stable, precise chain tracking
- Sized 18 in (45.72 cm) for versatile general-purpose work
- Pitch 0.325 in (8.25 mm) and gauge 1.3 mm to match common Husqvarna setups
- Smooth rail profile supports efficient, straight cuts
- Durable finish suitable for outdoor conditions
- Easy to fit and replace during routine maintenance
- Helps maintain cutting accuracy when paired with a correctly matched chain
- Suitable for professional users and DIY owners seeking dependable performance

Typical Applications:
Everyday felling and limbing of small to medium timber, cutting firewood, pruning thick branches, storm cleanup, site clearance, and general landscaping. Useful for estate, farm, and grounds maintenance where a balanced 18 in (45.72 cm) bar offers good reach and control. Suitable for users who require reliable guidance of a 0.325 in (8.25 mm) chain on compatible Husqvarna chainsaws.

Also known as:
Chain bar, chain guide, bar rail, replacement chainsaw bar, guide rail, 18 in bar (45.72 cm), laminated bar, chain guide plate, saw bar, bar replacement component.

Alternate Part Numbers:
508 92 61 72, 582 07 53-72, 582075372, 508926172, 585943272