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Trimmer

Husqvarna 525LS

2-Stroke

The Husqvarna 525LS is a 25.4cc <!-- verify: husqvarna.com/us --> 2-stroke professional straight-shaft trimmer and the loop-handle variant of the 525L, designed for operators who prefer a single-hand grip for production trimming. Mechanically identical to the 525L, it shares all service parts. The loop handle suits open-area production trimming where the operator moves quickly and changes direction frequently. Maintenance matches the 525L: monthly fuel system inspection, air filter service, and gearhead grease repacking under daily commercial use. Fuel filter and primer bulb are primary consumables.

Husqvarna 525LS quick specs

Equipment
Trimmer · 2-Stroke
Covered Parts
Spark Plug, Air Filter, Fuel Filter, Carburetor, Primer Bulb, Fuel Line Kit, Trimmer Head, Trimmer Line
OEM References
7
Model Family
525L, 525LK, 525LS, 525LST
See also: 525L, 525LK, 525LST — parts are often interchangeable within this family.

Spark Plug

OEM584968101(0.6mm gap)

Air Filter

OEM576401601Also fits 525L, 525LST, 525RJD; secondary filter element 577851501
BrandPart #
Stens605-730Buy on Amazon →

Fuel Filter

OEM591375401Also fits 525L, 525LST series
BrandPart #
Stens610-035Buy on Amazon →

Carburetor

OEM584901401Also fits 525L, 525LST, 525ES, 325HE3, 325HE4

Primer Bulb

OEM503936601

Fuel Line Kit

OEM597967305Fuel hose assembly; also fits 525L, 525LK
BrandPart #
Stens115-627Buy on Amazon →

Trimmer Head

OEM537388101T35 Tap Advance; straight shaft; bump-feed .095" line
BrandPart #
Oregon55-282Buy on Amazon →

Trimmer Line

OEM(.095" diameter, round)