Husqvarna 372 XPW Bar Length (Sizing Guide)
The 70.7 cm³ Husqvarna 372 XPW is commonly listed for 15–28-inch bars, with 20–24 inches a practical range for many jobs. Before buying, verify your saw’s manual, bar mount, chain pitch, gauge, and drive-link count. Longer bars need the right work, experience, and setup; length alone does not tell you what wood is safe to cut.
A bar change is straightforward when the parts match. The common mistake is choosing by length alone, then finding that the bar mount or chain does not fit. Before you head out, check the model plate and the markings on your current bar and chain. Those checks help you choose a length without guessing at compatibility.
Bar, Chain, and Safety Setup for the 372 XPW
Bar length is the usable cutting length measured from the front of the saw body to the bar tip, not the bar’s full metal length. The 372 XPW is commonly listed with 15–28-inch bars, but the manual for your exact saw and region is the final check before you order.
The saw’s stated displacement is 70.7 cm³. Model versions and parts can differ by market, so compare the model plate and regional operator’s manual with the replacement bar maker’s fit guide. Confirm the bar-mount pattern, too. A bar that has the right length can still be the wrong fit.
What must match before you fit a bar?
The bar, chain, and drive sprocket must agree on three chain specifications. Pitch is the spacing of chain rivets; gauge is the thickness of the drive links that sit in the bar groove; drive-link count is the number of links that run around the bar.
The common pitch for this saw is 3/8 inch, but pitch alone is not enough. Gauge and drive-link count vary with the bar and chain. Read the bar stamp or its maker’s specification, then check the chain package and sprocket. Never buy a chain based only on “3/8-inch.”
| Item to check | What to match | Where to verify |
|---|---|---|
| Bar length | Common listings: 15–28 in.; choose for the work | Bar stamp and saw manual |
| Bar mount | Correct mounting pattern for your saw version | Saw manual and bar maker |
| Pitch | Commonly 3/8 in.; verify your setup | Bar, chain, and sprocket markings |
| Gauge | Must match the bar groove and chain | Bar stamp and chain package |
| Drive links | Must suit the exact bar length and model | Chain specification or parts guide |
Before fitting, switch off the saw, let it cool, and engage the chain brake. Wear task-appropriate protective gear, including eye, hearing, hand, leg, and foot protection suited to the work. Inspect the chain, brake, chain catcher, throttle lockout, bar, and fasteners. Do not operate a saw with a damaged safety part or loose, damaged equipment.
Illustrative fit check: A 20-inch bar may look right, but its required drive-link count depends on the specific bar and chain design. If the bar stamp and chain package do not agree on pitch, gauge, and link count, stop and check the manufacturer’s fit information rather than forcing the chain onto the bar.
Field Cutting: Matching Bar Length to Wood and Work
A suitable bar is the shortest one that safely reaches the cut. A 20–24-inch bar is a practical general-purpose choice for many operators, while a shorter bar can be easier to control. A longer bar may suit larger wood, but it adds reach and can increase the load on the saw and operator.
The wood and cut matter as much as the number stamped on the bar. Hard wood, a large diameter, a dull chain, or a pinched cut can all make the saw work harder. A bar’s length does not set a safe diameter limit: wood shape, tension, access, and cutting method matter too.
| Bar length | Common use to consider | Key trade-off |
|---|---|---|
| 15–18 in. | Smaller wood and work where maneuverability matters | Less reach; may not suit the diameter or cut |
| 20–24 in. | General-purpose work for many 372 XPW users | A useful balance, but still depends on wood and setup |
| 25–28 in. | Larger work when the saw, chain, operator, and conditions suit it | More reach and added demands; not a default choice |
These are selection guides, not permission to make a cut beyond your training or the saw maker’s limits. Pick a bar that reaches the work without putting the nose where it can strike another branch, the ground, or a hidden object. Keep the nose clear: contact with its upper quadrant can cause rotational kickback, driving the bar up and toward you. A functioning chain brake helps reduce risk, but does not make nose contact safe.
Illustrative field choices: For routine mixed cutting, an operator might compare 20 and 24 inches, then select the shorter option if it reaches the planned cuts. For large-diameter wood, a longer bar may be considered only after checking the manual, chain setup, wood condition, and operator skill. If the cut binds, the engine bogs, or the saw cannot be held securely, stop; do not force it.
For covered logging work, follow the applicable requirements in OSHA 29 CFR 1910.266, including rules on separation and felling where they apply. Before cutting, check footing, overhead hazards, escape routes, bystanders, and wood tension. Start on stable ground using the manual’s cold- or warm-start steps, with the chain brake engaged. Release it only when you are ready to cut and have control of the saw.
Maintenance, Chain Sharpening, and Carburetor Checks
A correctly sized bar will not cut well if the chain is dull, the oil supply is blocked, or the saw is out of tune. Keep the chain, bar, fuel, and lubrication matched to the manufacturer’s specifications. If performance changes, check basic maintenance points before making adjustments that require service knowledge.
Sharpening and lubrication
The correct file size and sharpening angles depend on the chain type. Read the chain’s identification marks and its maker’s filing guide; do not assume every 3/8-inch chain uses the same file. File teeth evenly to the specified angle and length. Set depth gauges, also called rakers, to that chain maker’s specification. There is no single clearance that fits every chain.
Use suitable chain-and-bar oil. Keep the bar groove and oil holes clear, and use the operator’s manual procedure to confirm oil delivery. Oil type, flow, and test methods can vary, so do not rely on a universal viscosity or a guessed flow rate. If lubrication fails, stop the saw and fix the cause before cutting.
A dull chain often produces fine dust instead of chips, cuts slowly, or makes the saw feel as if it is being pushed. Stop and sharpen it rather than leaning harder on the saw. Forcing a dull chain can strain the engine and reduce control.
Fuel and engine checks
The commonly specified fuel mix is 50:1, or 2%, using Husqvarna-approved two-stroke oil or oil explicitly rated for air-cooled two-stroke engines. If the oil maker calls for a richer mix, follow that direction. Use fresh, correctly mixed fuel, and do not use straight gasoline in a two-stroke engine.
Idle speed is commonly specified at about 2,700 rpm, and maximum-power speed at about 10,200 rpm. These are different measures; maximum-power speed is not the maximum no-load speed. Check the manual for your exact version. Do not tune the carburetor by ear or by guesswork. If the saw will not idle, bogs, or runs poorly after basic checks, use the manual’s troubleshooting steps or have a qualified technician inspect it.
Shutdown, Cleaning, and Seasonal Storage
After cutting, shut the saw off and let it cool before cleaning or service. Remove sawdust and debris from the bar groove, oil holes, sprocket area, air intake, and chain-brake cover. Clean parts carefully without damaging the chain or safety components, then inspect for wear or damage.
Check chain tension and condition before storage, and follow the manual for adjustment. A chain that is too loose can come off; one that is too tight can increase wear. Store fuel only as directed by the saw manual and fuel supplier. Before the next job, recheck the bar and chain match, oil delivery, and safety parts.
Next step: If your setup is sound but the chain still cuts poorly, check sharpness and lubrication before changing bar length. If a safety part, bar, or chain is damaged, replace it with a compatible part before operating.
Frequently Asked Questions
What bar length is commonly listed for the 372 XPW?
Common listings show 15–28 inches. Confirm the allowed range for your exact saw version in its manual.
What is a practical all-around bar length?
A 20–24-inch bar is a practical general-purpose choice for many users. Choose based on the wood, cut, fit, and your ability to control the saw.
Can I fit a 28-inch bar?
It may be within common listings, but verify the manual, mount, chain specifications, and sprocket. Use a long bar only when the work and your experience suit it.
Does a longer bar let me cut larger wood safely?
Not by itself. Wood tension, access, cutting method, chain condition, and operator skill affect the job. Bar length does not set a safe cutting limit.
Is 3/8-inch pitch enough information to order a chain?
No. Match pitch, gauge, and drive-link count to the bar and drive sprocket. Also confirm the bar fits the saw’s mount.
What fuel mix should I use?
The common specification is 50:1, or 2%, with suitable two-stroke oil. Check the manual and follow the oil maker if it requires a richer mix.
What file size and angle should I use?
Use the filing guide for the exact chain model. File size and angles vary; pitch alone does not identify the right sharpening settings.
How do I know if the bar is receiving oil?
Use the test procedure in the operator’s manual. If oil delivery is absent or uncertain, stop and check the oil, passages, and system before cutting.
What should I do if the engine bogs with a longer bar?
Stop cutting. Check chain sharpness, tension, lubrication, and whether the bar and chain suit the work. Do not force the saw or adjust the carburetor by guesswork.
Can I start the saw with the chain brake released?
Follow the manual’s starting procedure and engage the brake for starting. Release it only when ready to cut, with the saw controlled and the chain clear.
(This article was written by one of our staff writers, David Hensley. Visit our Meet the Team page.)
