The size of the chain for an Echo CS-400 chainsaw will depend on what type of bar you are using. If you have a 16″ bar, then you should use a 3/8″ pitch .050 gauge or 1.3mm chain. For an 18″ bar, use a 3/8″ pitch .058 gauge or 1.5mm chain, and if your bar is 20″, then use a 3/8″ pitch .063 gauge or 1.6mm chain.
It’s also important to select the right number of drive links for your saw depending on the length of your guide bar; generally speaking, there should be about 65 drive links for each 16 inch increment in guide bar length (e.g., 65 links for 16″. 80 links for 32″).
When selecting a size of chain for your Echo CS 400 chainsaw, it’s important to consider the type of work you’ll be doing with the saw. The 16 inch bar is ideal for small cutting jobs or pruning, while an 18 inch bar and larger are better suited to heavier workloads.
Be sure to check your owner’s manual for specific recommendations on the proper size chain for your model.

What Size Chain is an Echo Cs440?
The Echo CS-440 chain saw uses a 3/8 inch pitch, .043 gauge chainsaw chain. A 3/8 inch pitch chain is one of the most common sizes used on small to mid-sized chainsaws such as the Echo CS-440.
The .043 gauge refers to the width of each individual link in the chain and is designed for lighter cutting jobs than other larger gauges.
This type of chain has fewer drive links that provide more stability when cutting, which makes it ideal for homeowners who are looking to do light pruning or trimming around their property.
What Pitch is the Chain on an Echo Cs-400?
The pitch on an Echo CS-400 chain is 3/8 inch. It features an Oregon bar and chain with a guide bar length of 18 inches, making it ideal for cutting through thick branches or logs. The chain has 64 drive links and the pitch is .375″.
This combination helps ensure that power from the engine is efficiently transferred to the blade and provides smooth, reliable operation when cutting through tough materials.
Additionally, this model comes standard with an automatic oiler system which helps lubricate the chain as it moves around the guide bar for improved performance and longer life expectancy.
What Size File for Echo Cs-400?
The Echo CS-400 chainsaw has an 18″-20″ bar and chain combination, which requires a 0.058 inch (1.5 mm) gauge file for sharpening the chain teeth properly. This size is also referred to as “full skip,” meaning that it will leave two cutting edges on each tooth when used correctly.
It’s important to always use the correct file size, otherwise you risk damaging the saw or not getting an optimal cut from your chainsaw blade.
Additionally, you should always clean off any dirt or debris before filing to ensure that your results are as accurate as possible!
What Size Chain Do I Need for My Echo Chainsaw?

When selecting the correct size chain for your Echo chainsaw, it is important to consider both bar length and pitch. The bar length of your Echo chainsaw can be determined by measuring from the tip of the guide bar to the center of its round drive sprocket nose.
Your chain’s pitch should match that found on your saw’s existing cutter links; this is typically 3/8 inch or .404 inches.
If you are unsure about which size chain to purchase, consult with an experienced Echo technician or refer to your owner’s manual for specific details regarding compatible replacement parts.
Replacement Chain for Echo Cs-400
Replacing the chain on an Echo CS-400 chainsaw is a fairly straightforward process that can be completed with basic hand tools. Before beginning, make sure you have all the necessary components for the replacement including a new chain, bar nuts and studs, and drive links.
Additionally, always wear safety glasses and gloves to protect yourself from any potential hazards while working with your chainsaw.
Echo Cs-400 Chain Sharpener
The Echo CS-400 Chain Sharpener is a powerful and reliable tool for sharpening and maintaining chainsaw blades. It features an adjustable depth gauge, which allows you to adjust the depth of the cut to match your chainsaw blade’s specifications.
It also has an automatic oiler which lubricates the chain as it works, making sure that each link is kept in optimum condition for better performance.
This versatile machine offers precision cutting with its hardened steel construction and can sharpen almost any type of saw chain up to 0.404″ pitch size.
Echo Cs-400 18 Inch Chain

The Echo CS-400 18 Inch Chain is a powerful and reliable chainsaw that features a 45.6cc two-stroke engine. This saw offers an impressive 18 inch bar length with .325″ pitch chain, giving you the power to tackle even the toughest jobs.
The lightweight design makes it easy to maneuver in tight spaces, while the anti-vibration system helps reduce fatigue during extended use.
With its low emissions levels, this model is eco-friendly and compliant with EPA standards for small off-road engines.
Echo Cs-400 16 Chain
The Echo CS-400 16 Chain is a great option for those in need of a powerful, reliable chainsaw. It comes with a 40.2cc engine and delivers professional-level performance, making it ideal for heavy-duty cutting tasks such as felling trees or trimming large branches.
The saw also features an easy to start system with primer bulb, G-Force Engine Air Precleaner™ technology, and side access chain tensioner for quick adjustments on the go.
The ergonomic handle design provides added comfort during extended use and its lightweight construction makes it easier to maneuver around hard to reach areas.
How to install a bar and chain on an ECHO saw
Oregon Chain for Echo Cs-400
The Oregon Chain for Echo CS-400 is a specially designed saw chain that provides superior cutting performance, improved safety, and increased durability. The full chisel cutters provide a smoother finish and longer life than standard 3/8 inch chains while the low kickback design helps reduce the risk of injury during use.
The advanced Oilomatic technology ensures consistent lubrication to reduce heat buildup, extend chain life, and improve cutting efficiency.
This saw chain is specifically designed for use with the Echo CS-400 chainsaw model making it an ideal choice for anyone looking to get the most out of their sawing experience.
Echo Cs-400 Bar And Chain Upgrade

Upgrading your Echo CS-400 chainsaw with a bar and chain can be an easy and cost effective way to increase the cutting efficiency of your saw. With the upgraded bar and chain, you will enjoy faster, smoother cutting performance while reducing wear on the internal components of your saw.
The upgrade is ideal for those who want to get more out of their chainsaw in terms of both speed and power.
Cs-400 Chainsaw
The Husqvarna CS-400 Chainsaw is a powerful and reliable saw that has been designed for professional use. This chainsaw is equipped with a 40cc engine, an 18-inch bar and chain, X-Torq technology to reduce emissions and fuel consumption.
A LowVib anti-vax system for comfortable operation, an Air Injection centrifugal air cleaning system for enhanced performance, and a Smart Start feature that facilitates easy starting.
The CS-400 offers superior cutting power and is ideal for tough jobs like cutting big trees or logs.
Conclusion
Overall, it is important to consider the size of the chain when purchasing a chainsaw. The Echo CS 400 is a great choice for those who need a powerful saw that can cut through wood quickly and efficiently.
With its 18” Oregon bar and 3/8″ pitch low-kickback chain, this saw gives you all the power you need while keeping safety in mind.
Taking into account your intended use and type of wood being cut, you should now have enough information to select an appropriate size chain for your Echo CS 400 chainsaw.