STENS 635-324.  Chain Adjuster / Husqvarna 501 81 92-01, 501819201.

REPLACES OEM
Husqvarna 501452702, 501817301, 501819201

FITS MODELS
Husqvarna Most 254, 257, 261 EPA, 262, 334 T, 335 XPT, 336, 338 XPT, 339 XP and 339 XPT chainsaws

SR-5