Husqvarna Chainsaw Maintenance Kit (135, 435, 440)

This Husqvarna chainsaw maintenance kit bundles the common wear parts for the 135, 435 and 440 so a tune-up is one order instead of three. It is the easy way to keep a ground saw or firewood saw starting and running right.

What a tune-up fixes

These are mid-size homeowner and light-duty saws, and on a tree crew they usually end up as the brush-cutting or bucking saw that never gets babied. A clogged air filter, a fouled plug or a dirty fuel filter will make any of them hard to start, bog under load and run hot. Replacing those parts together is cheaper than chasing one symptom at a time.

Check the kit's listed contents before you start so you know which parts you are swapping. Work on a clean bench, keep debris out of the intake while the filter is off, and gap or seat parts to the owner's manual.

A saw that has been sitting all winter often needs more than fresh fuel. Pull the plug and look at it: a black, sooty tip points to a rich mix or a dirty air filter, while a white, blistered tip can mean the saw is running lean and hot. Either way, fresh parts are the first step before anyone touches the carburetor.

Keep it going between kits

Blow out the air filter at every few fills, use fresh fuel mixed at the ratio in the manual, and empty the tank before the saw sits for long. Keep the bar groove and oil hole clean so the chain gets oil. Always run the saw with the chain brake working and wear chaps, eye and ear protection, gloves and a helmet. More service parts are in our power equipment parts section.