What Is The Difference Between Stihl 044 And MS 440 (Saw Updates)

The STIHL 044 and MS 440 are closely related professional chainsaws in the same roughly 70.7 cm³ class. The MS 440 is the later model designation, with production revisions made over time, not a larger saw or a guaranteed upgrade. Exact parts and some specifications depend on the saw’s year, market, and configuration, so check its serial number before buying parts.

If you are comparing used saws, the model badge alone will not tell you the saw’s condition or whether its parts match. I focus on three things: the production version, the parts fitted to that particular saw, and how it will be set up for cutting. That approach helps you avoid buying an incompatible part or assuming one model is automatically safer or stronger.

STIHL 044 vs. MS 440: the main difference

The short answer is that the MS 440 is a later version in the same general saw family as the 044. Both have about 70.7 cm³ of engine displacement. The name change does not mean every MS 440 has identical parts, or that every component swaps directly onto an 044.

STIHL made production and model revisions during the 044’s life and across MS 440 versions. Depending on year and market, parts such as the ignition, carburetor, starter, oiling system, muffler, and anti-vibration pieces may differ. There is no single change list that safely covers every saw with either name.

So, a claimed “upgrade” needs checking. A later model label may help identify the saw, but it does not prove that a used saw has its original components or that a particular replacement part will fit. I treat each saw as an individual configuration until its serial number and parts information confirm otherwise.

Key specifications and practical comparison

Specifications show why the two models are often compared as near counterparts, but they do not replace the saw’s own manual. Published figures can vary by version, market, or test method. Use the numbers below as a broad guide, then confirm the exact configuration before selecting equipment or ordering parts.

The weight in the table is for the powerhead, not the complete saw with bar, chain, and fuel. A longer bar and heavier cutting gear change the weight you handle. Power figures also need context: the 044’s published number may differ slightly from the MS 440 figure because versions and test standards can differ.

What the numbers mean for your choice

Displacement is the volume swept by the engine’s piston. Because both saws are about 70.7 cm³, the model names do not point to different displacement classes. Power is a published engine rating, not a promise that two used saws will cut at the same speed. Wear, tuning, chain sharpness, and wood all matter.

A 20–25 inch bar is a common practical range for saws of this size, but it is not a blanket approval for every saw or job. Longer bars add load and can increase kickback exposure. Confirm the approved bar and chain combination in the manual or STIHL parts information for the exact saw.

Parts compatibility: check before you buy

Parts compatibility means a replacement part matches the saw’s exact production version and configuration. Similar names and shared family history do not prove a fit. Before ordering, find the saw’s serial number, use the matching parts information, and compare the part number. Ask a qualified STIHL dealer if the record or saw is unclear.

I use a simple sequence when assessing a used saw or replacement part:

• Record the model marking and serial number.
• Identify the correct parts diagram or manual for that serial range and market.
• Compare the old part’s number and design with the proposed replacement.
• Confirm related parts also match. A chain, for example, must fit the bar and drive sprocket.
• If the saw has been modified or the parts do not match the diagram, have a qualified dealer inspect it.

A parts diagram can identify the intended factory configuration, but a saw may have been repaired or altered. Inspect what is actually fitted. If a safety part is damaged or does not work, do not use the saw until it is repaired.

Bar, chain, and safe operating setup

The bar is the guide that supports the chain as it cuts. The chain must match the bar groove and the saw’s drive sprocket. Pitch describes the chain’s size pattern; gauge is the thickness of its drive links. Match both measurements to the equipment. Do not guess based on “044” or “MS 440.”

A 3/8-inch pitch chain is common on these saws, and .050-inch and .063-inch gauges are used in different configurations. Those figures are not interchangeable. Check the markings on the bar and sprocket, then confirm the combination against the saw’s manual or parts information.

Before cutting, follow the manual’s start procedure and check that the saw is ready:

• Wear a helmet, eye and ear protection, chainsaw chaps, gloves, and protective boots.
• Inspect the chain brake, throttle interlock, stop control, chain catcher, handles, bar, chain tension, and fasteners.
• Start on stable ground with the chain clear. Use the chain brake as directed in the manual.
• Check that the saw idles without the chain moving and that the chain receives oil before cutting.
• Keep both hands on the saw and maintain secure footing.

The upper quadrant near the bar nose can cause rapid kickback if it contacts wood. Keep that area clear; avoid tip-boring unless trained and equipped for it, and do not cut above shoulder height. For tree felling, assess lean, wind, defects, targets, and escape routes. If the tree or plan is beyond your training, stop and use a qualified faller. Follow applicable ANSI Z133 requirements and site rules.

Two used-saw checks that prevent common mistakes

These examples show how to apply the model comparison without assuming every 044 or MS 440 is the same. They are inspection scenarios, not claims about a particular saw. In both, the useful next step is to confirm the actual parts and condition before putting the saw to work.

Scenario 1: An 044 needs an ignition part. The owner finds an online listing described as fitting both models. Rather than ordering by name, they record the serial number, find the matching parts diagram, and compare the listed part number with the replacement. If the numbers or design do not match, they ask a dealer to confirm the correct part.

Scenario 2: An MS 440 has a long bar fitted. The model name alone does not confirm that the bar and chain are approved for that saw or suitable for the operator and job. The owner checks the bar’s pitch and gauge, the sprocket, and the manual’s approved combinations. They also consider that a longer bar adds load and kickback exposure.

In either case, a saw that has been modified, runs poorly, or has a faulty chain brake needs inspection before use. Do not force a dull or incorrectly tensioned chain through wood. Stop, correct the chain condition, and check for damage.

Fuel, maintenance, and storage

Routine care affects how well either saw runs, but service details can vary by configuration. Follow the manual for fuel, oil, adjustment, and storage. For the MS 440, a 50:1 mix with STIHL two-stroke oil or an equivalent approved oil is a common specification; confirm the manual for the exact saw before mixing fuel.

Never run straight gasoline or fuel without the required two-stroke oil. The engine needs that oil for lubrication, and the wrong mixture can cause severe engine damage. Use fresh gasoline of the type approved by the manual. Use suitable chainsaw bar oil, and check that oil reaches the chain; do not assume a fixed oil-flow rate or substitute engine oil without manufacturer approval.

After use, clean the air filter and cooling surfaces, inspect the bar rails and oil hole, and check chain tension and lubrication. Sharpen cutters evenly and set depth gauges to the chain maker’s specification. There is no universal depth-gauge setting for every chain.

Carburetor limits and high-speed settings depend on the version. Use the serial-specific manual and a tachometer, or have a qualified technician do the work; tuning by ear can lead to an incorrect setting. For storage, stop the engine, let it cool safely, clean the saw, and follow the manual’s fuel-storage directions. Store it dry and secure with the bar cover on and fuel away from ignition sources.

Which saw should you choose?

The 044 and MS 440 occupy much the same size and power class, so condition and configuration often matter more than the name. A clean, correctly serviced saw with confirmed parts may be a better choice than a worn example carrying the newer model marking. Compare the actual saw, its service needs, and the availability of correct parts.

If you already own one, use its serial number and manual to guide repairs and setup. If you are shopping, check the chain brake and controls, look for signs of damage or modification, and ask for serial-specific parts information. Have a qualified technician inspect any saw with uncertain history or a safety fault.

Frequently asked questions

Is the MS 440 just an updated 044?
It is the later model designation in the same general saw family. Production revisions exist, but details vary by version and market, so the name alone does not identify every change.

Do the 044 and MS 440 have the same displacement?
Both are approximately 70.7 cm³. They are not different displacement classes, though published power figures and fitted parts can vary by version.

Is the MS 440 more powerful than the 044?
The MS 440 is commonly listed at about 4.0 kW (5.4 bhp). Published 044 figures may differ by market or test standard, so compare the exact version rather than assuming a single power difference.

Will MS 440 parts fit an 044?
Some parts may fit some versions, but interchange is not guaranteed. Check the serial-specific parts diagrams and part numbers before ordering.

Are all 044 and MS 440 parts interchangeable?
No. Ignition, carburetor, starter, oiling, muffler, and anti-vibration parts can vary. Confirm the saw’s production version and the replacement part number.

What bar length suits an 044 or MS 440?
A 20–25 inch bar is a common practical range, but the approved setup depends on the saw, chain, sprocket, wood, and operator. Confirm the combination in the manual or STIHL parts information.

Can I use a .050-inch chain instead of a .063-inch chain?
Only if the bar groove and drive sprocket match that chain’s gauge and pitch. Check the markings and equipment details; do not swap chain gauges by guesswork.

What fuel mix does an MS 440 use?
A 50:1 mix with STIHL two-stroke oil or suitable approved oil is common. Follow the manual for your saw, and never use straight gasoline.

How can I tell if my chain is getting oil?
Follow the manual’s lubrication check and confirm oil reaches the chain. If it does not, stop and inspect the oil system or have the saw serviced before cutting.

What should I do if the chain brake does not work?
Remove the saw from service until the brake is repaired and checked. Do not rely on careful handling as a substitute for a working safety system.

(This article was written by one of our staff writers, Evan Bradley. Visit our Meet the Team page.)