Looking for a direct replacement guide bar for your Husqvarna chainsaw? This is the genuine Husqvarna OEM bar. The specs are: 12 inches in length, with a 1/4-inch pitch and a 1.3mm gauge. The model number is A318, and it's designed to fit the Husqvarna 327Pt5S chainsaw model. The OEM part number is 575 84 22-64 (or 575842264). If your old bar is worn out or damaged, this is the exact part to get your saw cutting smoothly again. Always ensure it matches your specific saw model before purchasing.