You can get a Chainsaw Chain Size Chart from the workshoppist.com.

I explained what determines bar compatibility on a general level after answering the question "Are chainsaw bars interchangeable?" in a previous article.I promised to return with more information for a few saw brands.

In this post, I will show you how to find a guide bar that fits your chainsaw.According to the article, the guide bars come in three different bar mounts and seven pitch-gauge combinations.To fit, a replacement bar for a chainsaw should have the same mount type and chain pitch as the saw.

Next, we will talk about chainsaw bar compatibility.The main topic of this article is how the bar mounts and pitches and gauge determine which bar fits your saw.Although not strictly a compatibility issue, we will look into bar length with saws as an important practical aspect.We will show you how to fit a bar to some of the most popular models.

In my previous article, you can read more about bar compatibility.The matching principles can be summarized in a single paragraph.

To be compatible with a chainsaw, a guide bar needs to have the right bar mount and the same chain pitch.To be compatible with a certain chain type, a bar should be matched to the chain gauge.

When searching for a compatible replacement bar, just look for bars with the same mount and pitch as your saw, because these matching principles apply to all other brands.Bar length, gauge, brand, kerf, construction, nose profile, etc., are important, but do not affect saw compatibility as such.

The application of these simple rules is challenging because they use so many different mounts and pitches across their chainsaw product line.We are going to go through this next.

There are three different bar mounts for the chainsaw and bars.If your saw has a 3003 mount, so must your bar.

You can see what the large and medium mounts look like.The table below shows which mount each model uses, the width of the mount slot, and compatible Cannon and Oregon replacement bar mounts.

You can determine the mount yourself if you don't find your model in the table.

It can be difficult to find a replacement bar with the right mount, since the mount is not always clear from the bar model name.

The mount code on the first four digits of the model number is the best way to check if the bar is original.

There are five different chain pitches and three different gauge in the guide saws, bars and chains.In the current lineup, there are seven pitch-gauge combinations.The combinations are not compatible.

The design chain pitch and gauge options are listed in the table below.

There are special low profile chains called "Picco", "Extended" or "LP" that can be found in the pitches with a "P" suffix.I made this mistake because these are not compatible with the regular pitch parts.

Some saws seem to have been delivered in two different ways.There are at least three examples in theMS 200 series.If possible, check the saw pitch from the manual, bar, or chain.

There is some confusion about how saws, bars and chains go together in terms of pitch and gauge.

The biggest aspect of bar size is bar length.

Bar length is not a compatibility issue with the chainsaws.If the bar has the right mount and pitch, you could put any length bar on the saw and make it run.

Bar length is a question of saw power, practicality and safety; the question to ask is would this bar length make sense on this saw?

The recommended bar length range is for each chainsaw model.The saw size and power determine the range.

For small gasoline-powered, battery or electric chainsaws, the minimum bar length is 10” or 12” and for medium-sized and large gas saws is 16”I think it's related to kick-back safety.

The table below shows the minimum and maximum recommended bar lengths, as well as examples of each motor size class.

The guidelines are rough, but they do not always go in line with power or motor size.The MS 500i has a longer max bar than the 661, despite the latter having a bigger motor and more power, while the MS 250 has only one length recommended.Check the recommendations for your model.

After reading all of my instructions, it can be difficult to find which bars fit.

To make the screening process simpler, we will take a few of the most popular chainsaw models and go through the bar screening step by step.These models have a few more catches than average.

The 30cc homeowner saw is called theMS 170.The first table shows that the 3005 mount bars will be taken by theMS 170.

According to the second table, the gauge on the MS 170 may be either.043” or.05%.The saw seems to have shipped with.050” bars, but the website says PMM3 in all regions.As long as you have the matching chain, you can fit the saw with a bar of either gauge.

TheMS 170 takes a 12” to 16” bar with a 3005 mount and either.043” or.05% gauge.

The websites are incorrect in stating that the chain identification PDF givesMS 170 the pitch.The website seems to have the correct information for all regions.

The most powerful homeowner saw was the MS 250.Since the saw comes in two different pitches, it's more difficult to match a bar to the model.

The most powerful mount with this bar mount is the 3005 mount, which theMS 250 clearly has.

The table shows the pitch and gauge for the saw.The saw is listed as.325” in the USA, but it is also listed on the global site.If you want to order a new bar, you should check the pitch from the old bar.

The range on the MS 250 is one length only, according to websites.Since the online bar & chain selector tool gives both 16” and 18” bars, I am not sure if this is a good idea.

In the US, a 16” or 18” bar with 3005 mount and a pitch–gauge combination of.325”/.06” is more likely.

The new versions of the Wood Boss take a 16” or 18” bar with a 3005 mount, but have only a single pitch and gauge of.325”/.0642”.

The Farm Boss is a mid-range saw.It's bar compatibility is more clear cut than the others, and can be read straight from the tables.