What this is
Two replacement chains for two corded 16” chainsaws that take the same chain: the Worx WG303 / WG303.1 and the Bauer 20112E-B, sold by Harbor Freight as item 57622. Both manuals give 16”, 3/8” pitch, .050” gauge and 57 drive links, and Oregon lists its S57 low-profile chain for the pair. This pack is the same size. Worx’s own replacement is WA0157 (bar WA0158).
56 or 57 links?
Most 16” chains with this pitch have 56 drive links. These two saws take 57. One link is the difference between a chain that tensions properly and one that won’t go on, so count the old chain before ordering. For 56-link .050” saws, such as the Husqvarna 135 or Homelite UT43122, see our 16” 56-link chain.
Fitting it
Both saws use tool-free tensioning. On the Bauer, Harbor Freight says to tighten the chain tension knob with the bar pressed against a firm surface, to replace the chain only with an identical one, and to soak a new chain overnight in bar and chain oil before fitting. Worx asks owners to use genuine Worx chains or chains recommended for the bar.
