Just compared the old and new piston's for my '81 Husqvarna 61 Rancher. Substantial difference to say the least. Everything says it's the right one, they both have a B stamped on the top of the piston. Is this one of those progressive refinements or did the Greek send me the wrong one?
HELP![shock !!! !!!](/talk/styles/default/xenforo/smileys/shock.gif)
New piston is on the left![Did I get the Wrong Piston? Did I get the Wrong Piston?](https://www.hearth.com/talk/data/attachments/72/72671-7a02a64152fe082a513806afc32346b5.jpg)
HELP
![shock !!! !!!](/talk/styles/default/xenforo/smileys/shock.gif)
New piston is on the left
![Did I get the Wrong Piston? Did I get the Wrong Piston?](https://www.hearth.com/talk/data/attachments/72/72671-7a02a64152fe082a513806afc32346b5.jpg)