Good used freshly reground single slinger crank.  Note this is a single slinger type c/s and uses a rope rear seal. They use 81A- main bearings and you must use full floating rod bearings and 99A or 29A rods, so it cannot be used with 3 1/16" bores. It has -.030 rod journals and is -.010 on mains. They are cosmoline coated and require final clean before installation.

Note that we also usually have other cranks available that may not be listed here and we have the bearings for most crank sizes.