Oregon 11892 .325-inch Radially Ported 7 Tooth Power Mate Rim Spline

High-quality replacement that performs as it should! Fit my Stihl saw perfectly.

This Oregon rim spline fit perfectly on my Echo CS-510.One face is well marked w/the pitch and tooth count so if you get a spare and throw it in your parts box, you'll know what saw it belongs to.And ... it's an Oregon product. These folks know what they're doing when it comes to chainsaw chains and parts. For me they've always been a trusted brand and I have never been disappointed with any of their products.

Not as heavy duty as I'd like but it works great.

I haven’t much to add about this car part something my husband ordered and had installed in my daughters car. Car works parts worked! Everybody’s happy.

Good fit works great. Harder than factory piece. Lasts long despite using cheap chains.

Does not fit stock stihl ms260. Way too big

Most people don't even know to replace this part on every second chain replacement. Simple job to do, not expensive, and will keep you from having to wait a day or two for the part to arrive. Get one, replace the old one, save it if if it still looks good. Cheap, easy insurance.

Fits perfectly, works great. I change them after about three chains. They can go longer, but it's better not to run them to failure.