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Stihl Chainsaw Chains: Size Chart & Model Finder

Stihl Chainsaw Chains: Size Chart & Model Finder

Stihl Chainsaw Chain Size Chart & Replacement Guide

Find the Right Replacement Chain for Your Stihl Chainsaw

Looking for the correct replacement chain for your Stihl chainsaw? Whether you own a Stihl MS 170, MS 250, MS 271 Farm Boss, or MS 500i, choosing the right chain is essential for safe operation and efficient cutting.

Using the wrong chainsaw chain can reduce performance, increase wear on your guide bar, and create unnecessary safety risks. The good news is that finding the correct Stihl compatible chain is simple once you know three key measurements: pitch, gauge, and drive link count.

In this guide, we'll explain how to identify your chain size, choose the right replacement, and keep your chainsaw performing at its best.

Understanding Stihl Chain Sizes

Before buying a replacement chain, you'll need to know these three measurements:

Chain Pitch

Pitch is the distance between the chain's drive links and determines how aggressively the chain cuts.

Common Stihl chain pitches:

  • 0.325" – Popular on homeowner and mid-range saws

  • 3/8" – Common on larger and professional saws

  • 3/8" Low Profile – Reduced vibration and easier handling

Chainsaw Chain Pitch Explained

Chain Gauge

Gauge is the thickness of the drive links that fit into the guide bar groove.

Common gauges:

  • .050"

  • .058"

  • .063"

Your chain gauge must match your guide bar exactly.

Drive Links

Drive links determine the chain length.

Examples include:

  • 55 Drive Links 

  • 72 Drive Links 

Always match the drive link count when ordering a replacement chain.

Popular Stihl Models & Chain Types

Homeowner Chainsaws

Popular models:

  • Stihl MS 170

  • Stihl MS 180

  • Stihl MS 181

These typically use low-profile chains designed for light cutting, pruning, and firewood.

Mid-Range Chainsaws

Popular models:

  • Stihl MS 250

  • Stihl MS 251

  • Stihl MS 271 Farm Boss

These commonly use .325" pitch chains for a balance of speed and durability.

Professional Chainsaws

Popular models:

  • Stihl MS 362

  • Stihl MS 462

  • Stihl MS 500i

These generally use 3/8" pitch chains designed for demanding professional work.

How to Identify Your Stihl Chainsaw Chain

Check Your Guide Bar

Most guide bars have the chain specifications stamped on the side, including:

  • Pitch

  • Gauge

  • Drive links

  • Bar length

Check Your Owner's Manual

Your manual provides the exact replacement chain specifications for your model.

Measure Your Existing Chain

If you already have a chain that fits:

  • Count the drive links

  • Measure the pitch

  • Check the gauge

Chainsaw Bar Replacement & Maintenance Guide

Choosing the Right Stihl-Compatible Chain

Stihl chains are designed for different applications:

Rapid Micro (RM)

Ideal for homeowners and general-purpose cutting.

Picco (PM)

Lightweight chain designed for smaller saws and reduced fatigue.

Rapid Super (RS)

Professional chain for faster cutting and demanding workloads.

Rotatech chains offer a high-quality, cost-effective alternative that fits a wide range of Stihl chainsaw models.

Lightweight Chainsaw Bars Explained

Chainsaw Chain Maintenance Tips

Keeping your chain in good condition improves performance and extends its lifespan.

Sharpen Regularly

A sharp chain:

  • Cuts faster

  • Uses less fuel

  • Produces cleaner cuts

Maintain Correct Tension

A loose chain can derail, while an over-tight chain causes excessive wear.

Use Quality Chain Oil

Proper lubrication helps reduce friction and protects both the chain and guide bar.

Inspect Before Use

Check for:

  • Damaged teeth

  • Bent links

  • Rust

  • Excessive wear

Chainsaw Chain Sharpening Guide

Frequently Asked Questions

What chain fits a Stihl MS 170?

Most MS 170 models use a 3/8" low-profile chain, but always check your guide bar specifications before ordering.

Can I use a non-Stihl chain?

Yes. Any chain with the correct pitch, gauge, and drive link count will fit safely.

What's the difference between .325" and 3/8" pitch?

.325" chains are commonly used on homeowner and mid-range saws, while 3/8" chains are typically found on larger professional models.

How often should I replace my chainsaw chain?

A well-maintained chain can last for many sharpening cycles. Replace it if it becomes damaged, stretched, or excessively worn.

Find Your Perfect Replacement Chain

Whether you're replacing a chain for a Stihl MS 170, MS 250, MS 271 Farm Boss, or MS 500i, Rotatech stocks Stihl-compatible chains designed for reliable performance and long service life.

Browse our range of replacement chains and guide bars, or contact our team for help finding the correct chain for your saw.