Husqvarna 20-inch X-Tough Chainsaw Bar — 3/8" pitch, .050" gauge, 72 drive links; Replaceable Sprocket Nose, Hardened Steel

The Husqvarna X-Tough 20" RSN guide bar is a heavy-duty steel chainsaw bar with a replaceable sprocket nose designed for professional felling and bucking.

Built from a solid, hardened steel body and engineered for reduced friction and extended service life, this 20-inch X-Tough bar fits a range of Husqvarna professional saws. Its replaceable sprocket nose (RSN) and optimized oiling path lower maintenance time while the triple-rivet mount and high-quality roller bearing increase durability under demanding use. Choose this bar when you need a robust, field-serviceable guide for frequent cutting tasks.

How does the replaceable sprocket nose (RSN) benefit me?

The RSN design lets you replace only the worn tip instead of the entire bar, reducing repair cost and downtime. The sprocket nose rolls smoothly, which lessens friction at the tip and helps the chain run cooler and cleaner for longer periods.

• Replaceable tip availability for on-site maintenance
• Roller bearing supported for lower friction and cooler operation
• Shielded bearings to keep debris out and extend life

Will this 20" bar fit my Husqvarna saw and chain setup?

This X-Tough model is specified for a 3/8" pitch, .050" gauge and 72 drive links and matches many Husqvarna professional models. It’s compatible with saws listed for 20-inch bars when the sprocket and mounting plate accept the triple-rivet mount configuration.

• Pitch: 3/8" — use with matching 3/8" pitch chains
• Gauge: .050" for a snug, reliable chain fit
• Drive links: 72 — confirm with your chain length or shorten as needed

What makes the X-Tough bar tougher than standard guide bars?

The X-Tough construction uses increased rail hardness and a solid-steel body to resist bending and wear under heavy loads. The triple-rivet mount and robust patented RSN profile make it less sensitive to impact, translating into longer service life in rough conditions.

• Hardened rails for reduced wear and longer sharpness retention
• Solid steel body for enhanced rigidity during felling and bucking
• Optimized oil hole for consistent chain lubrication and lower maintenance

How should I maintain this guide bar for best performance?

Regular cleaning of the bar groove and oil hole, periodic lubrication, and inspection of the sprocket nose ensure reliable operation. Replace the tip or bar when wear or damage is evident to keep chain tracking accurate and to avoid premature chain wear.

• Clear groove debris after heavy use to maintain oil flow
• Inspect and replace the RSN tip when bearings or sprocket teeth show wear
• Keep chain tensioned correctly and sharpen chain for reduced stress on the bar

Who is this for? The Husqvarna X-Tough 20" RSN bar is aimed at professional users and serious homeowners who run heavy cutting cycles on compatible Husqvarna chainsaws. If you need a durable, serviceable guide bar for frequent felling, bucking, or demanding job-site work — especially when field repairs and long life matter — this bar is engineered for that use.

• Includes one Husqvarna X-Tough 20" RSN Chainsaw Bar for models: 365, 372XP, 390XP, 395XP, 562XP, 565, and 572XP
• Precision specification: 3/8" pitch, .050" gauge, 72 drive links
• Solid professional guide bar with replaceable sprocket nose and available replacement tip
• Suitable for felling and bucking with professional chainsaws; other bar lengths available