Husqvarna 525LS vs. 525LST vs. 326LS (Field Test)
For most grass trimming, the 525LS is the straightforward choice; the 525LST is worth considering when its geared setup suits dense vegetation and the approved attachment. The 326LS is another 25.4 cm³ option, but its power and gearing should be checked by model and market. I would compare them with the same attachment and work conditions, not assume one wins.
Choosing among these trimmers can affect how quickly you finish and how much strain, noise, and exhaust exposure you face. A well-matched tool can help you avoid forcing the cut, while hearing and eye protection remain essential. The model name alone does not settle the decision: attachments, maintenance, operator control, and the machine’s serial-specific manual matter too.
What separates the 525LS, 525LST, and 326LS?
These are gasoline trimmers, not chainsaws. The 525LS and 326LS are loop-handle models; the 525LST is a geared, high-torque and lower-speed variant in markets where it is sold. Published figures help frame the comparison, but they do not replace the manual for your exact machine.
| Model | Published engine information | Design distinction | What to verify |
|---|---|---|---|
| 525LS | 25.4 cm³; commonly published rated output of 1.0 kW | Loop handle | Approved head or blade, line size, and RPM limits |
| 525LST | 25.4 cm³; commonly published rated output of 1.0 kW | Geared high-torque, lower-speed variant where available | Gearbox ratio and approved attachments for that market |
| 326LS | 25.4 cm³; output and RPM figures vary by source and market | Loop handle | Exact output, gearbox, and attachment approval by serial number |
The 525LST’s gearing is intended to favor torque at the attachment. That does not mean it is automatically faster or better in every kind of growth. A trimmer’s result also depends on the cutting head, the vegetation, and how steadily you work.
None of these models accepts a chainsaw bar or chain. Chain pitch, gauge, raker clearance, and wood-hardness ratings do not apply. Use each machine only as a line trimmer or brushcutter with an attachment approved in its manual.
Which model fits your kind of trimming?
The best match depends on the material you cut and the attachment Husqvarna approves for your exact unit. Grass, thick weeds, and woody stems place different demands on a trimmer. Choose for the work you do most, then confirm the manual’s limits rather than relying on a model suffix or sales description.
For routine lawn edges and grass, start by comparing the 525LS and 326LS as loop-handle options. Their shared 25.4 cm³ displacement does not prove they have the same output, speed, or gearing. Check the machine’s plate and manual before treating their performance as equal.
The 525LST deserves consideration when its geared setup and an approved attachment suit heavier vegetation. Do not assume that any blade will fit, or that more torque means you can force the tool through thick stems. The manual sets the allowed blade type, guard, mounting parts, and cutting limits.
A quick selection guide:
- Choose a loop-handle model when that control style fits your trimming work and the manual permits your preferred attachment.
- Consider the 525LST for dense vegetation only after confirming its gearing and approved attachment for your market.
- If comparing a used 326LS with a newer model, confirm the exact model, serial number, and parts condition before judging it by published figures.
How to run a fair field comparison
A field comparison is useful only when the test conditions are consistent. The same operator, fuel, attachment, work area, and cutting time help show how the models differ in practice. A short test can compare handling and cut quality, but it cannot prove long-term reliability or establish a universal winner.
I would set up each trimmer with an attachment approved for that model, then use the same vegetation type and a marked work area. Keep the line diameter or blade type within each manual’s limits. If the approved attachments differ, record that fact; otherwise, the comparison may reflect the attachment more than the engine.
Record observations rather than relying on memory:
- Starting behavior, including cold starts and warm restarts
- Cut quality and area cleared over the same work period
- Fuel used, measured consistently
- Vibration, control, and operator fatigue
- Any clogging, line feed issue, or unusual sound
Do not use a tachometer setting or idle figure from one model on another. Idle speed, maximum RPM, clutch engagement, and attachment limits vary. Follow the model’s manual and specified tachometer procedure. If the attachment turns at idle or the engine races, stop work and arrange an inspection.
Field setups: grass, weeds, and heavier growth
These examples describe how I would compare the machines on common yard jobs; they are not claims of measured test results. The goal is to match the approved attachment to the vegetation, then see which tool gives you controlled cutting with less effort. Never use a blade or line size that the manual does not allow.
Grass and fence-line trimming: Use an approved line head and the specified line diameter. Work the same length of fence or marked patch with each trimmer. Note how easily you guide the head and whether the cut is even. Line is for grass and similar trimming, not substantial woody stems.
Dense weeds: Check whether the manual permits a blade for the material and fit its specified guard and hardware as a matched set. Compare control and clearing rate without forcing the attachment. The 525LST’s geared design may suit this work, but only a controlled comparison can show whether it helps in your conditions.
Mixed yard work: If your day includes both grass and heavier vegetation, consider how often you will change approved attachments and whether the handle and harness setup feel manageable. Stop and inspect after an impact, entanglement, or sudden vibration. Do not resume until you have checked the attachment, retaining hardware, guard, and gearbox.
Safe setup and operation for all three
A safe comparison begins before the engine starts. Inspect the machine, attachment, and work area, then follow the exact starting steps in the manual. A loose blade or damaged guard can turn a routine trimming job into a serious hazard, so never trade a proper inspection for a faster start.
Before starting, check for fuel leaks, loose fasteners, cracks in the guard, damaged line or blade, and secure attachment hardware. Confirm that the throttle lockout and stop switch work, and that you can reach the stop control. Start on stable ground with the attachment clear of people and objects. Follow the machine’s cold- or warm-start procedure.
During work, use the attachment intended for the material. Keep stable footing and use controlled sweeps in the manufacturer’s cutting direction. Keep people and animals outside the exclusion area set by the manual. Wear eye and face protection, hearing protection, gloves, long trousers, and substantial footwear. Apply ANSI Z133 when the work falls within its scope; OSHA 1910.266 covers certain logging operations, not every landscaping job.
After trimming, release the throttle and use the stop switch. Wait until the attachment has stopped before setting the machine down or clearing debris. Let hot parts cool before handling or refueling. Stop at once if an attachment hits something or vibrates abnormally; keep others clear while you inspect it.
Fuel, maintenance, and seasonal storage
Good maintenance helps any of these trimmers start and run as intended. Use the correct fuel mix, clean air and cooling parts at the manual’s intervals, and follow the storage procedure for your model. Fuel and tune-up details should come from the machine’s own manual, not from a different trimmer or a chainsaw.
Husqvarna’s standard two-stroke mix is 50:1, or 2%, with Husqvarna two-stroke oil. That equals 20 mL of oil per 1 L of gasoline. Use the fuel grade and oil specified for your machine. Never use straight gasoline in these two-stroke engines.
Clean the air filter and cooling fins as directed. Inspect the spark plug, fuel filter and lines, clutch area, gearbox, fasteners, guard, and attachment. Use the specified line-loading method and diameter. Sharpen a compatible metal blade only to its stated geometry and balance procedure; replace damaged blades rather than trying to force a poor cut.
Before extended storage, follow the manual’s directions for draining or stabilizing fuel. Fuel storage life can vary by formulation and product, so do not assume every mix keeps equally well. Clean and dry the tool, store it in a cool, dry place away from children, and keep fuel in an approved, labeled container away from ignition sources.
Bottom line: which trimmer should you choose?
For grass work, compare the 525LS and 326LS by exact specification, condition, attachment approval, and operator feel; shared displacement does not make them identical. Consider the 525LST when its gearing suits your approved setup and vegetation. Confirm details in the manual for your serial number before buying, fitting a blade, or beginning a side-by-side test.
A fair test can help you judge handling and cut quality, but it should not replace safety checks or prove long-term durability. Keep the attachment matched to the machine, use the correct fuel mix, and stop if the tool shows unusual vibration or will not idle normally.
Frequently asked questions
These answers cover the key model differences and safe use points. Specifications and approved attachments can vary by market and production year, so check the manual and serial number for your own trimmer. When a published figure conflicts with the machine’s manual, use the manual’s instructions.
Are the 525LS and 525LST the same trimmer?
They share commonly published 25.4 cm³ displacement and 1.0 kW rated output figures, but the 525LST is a geared, high-torque and lower-speed variant in markets where it is sold. Confirm its exact configuration in the manual.
Is the 326LS as powerful as the 525LS?
Do not assume so. Both are commonly listed at 25.4 cm³, but 326LS output and RPM figures vary by source and market. Check the exact model’s manual.
Can these trimmers use a chainsaw bar or chain?
No. They are trimmers or brushcutters, not chainsaws. Use only the approved cutting attachments listed for the machine.
Can I fit a blade to any of the three?
Only if the manual approves that blade and specifies the matching guard and mounting hardware. Do not fit an unapproved blade.
What fuel mix should I use?
Husqvarna’s standard recommendation is 50:1 with Husqvarna two-stroke oil, or 20 mL oil per 1 L gasoline. Follow the manual for your machine and never use straight gasoline.
Which model is best for thick weeds?
There is no universal winner. Check which approved attachment suits the weeds, then compare control and cutting results under the same conditions. The 525LST’s geared setup may be relevant, but does not guarantee a better result.
What should I do if the attachment spins at idle?
Stop work and have the clutch and carburetion inspected under the model-specific service procedure. Do not continue using a trimmer whose attachment moves at idle.
Can I compare fuel use in a short field test?
Yes, as a limited observation. Use the same fuel batch, attachment where approved, operator, vegetation, and work duration, then measure fuel consistently. A short test does not establish long-term reliability.
(This article was written by one of our staff writers, Harrison Croft. Visit our Meet the Team page.)
