Husqvarna T540XP Mark II Bearings

These Husqvarna T540XP Mark II bearings are replacement parts for engine rebuilds on the gas top-handle saw. Worn bearings show up as noise, play in the crankshaft and eventually seal failure, and are usually replaced during a major overhaul.

Signs of worn bearings

With the plug out and the clutch side exposed, a healthy crankshaft spins smoothly with no up-and-down or side-to-side play. Grinding, rumbling or noticeable play points to tired bearings. Worn bearings also let the crank move enough to wear out the seals, which causes air leaks and lean running.

A top-handle saw that has run for years in the canopy may reach that point. Check the parts diagram to confirm which bearing positions this part covers.

Worn bearings usually go along with other high-hour wear, so look at the piston, cylinder, clutch and AV mounts before deciding on a rebuild. On a top-handle saw that a climber relies on every day, many owners choose a full overhaul at once rather than repairing parts one at a time. Keep the saw's model and serial number on hand to order the correct bearings.

Is a rebuild worth it

Bearing replacement means splitting the crankcase, pressing bearings out and in, and fitting new seals and gaskets. It takes the right tools and experience, and most climbers have a dealer or a saw tech do it.

Weigh the cost of a full rebuild against the saw's overall condition. Seals, gaskets and other T540XP parts are in our chainsaw parts section.