McCulloch

K095 will work fine on a 10 series so long as there's an oiler passage from the adjuster holes to the bar groove. Some have it, and others can be modified to have it with a couple minutes of dremel work (with a reinforced cutting disc). BTDT. A095 is basically the same. Original mount for the Super E-Z Homelites.


D176 is Oregon's "multi fit" bar mount for the 10 series, most midsize/larger Poulans (306/245, 360, 3400-4000, 4200/5200, etc), early XL12 and XL700/800 series Homelites, Lombards, and others with 5/16" studs. Same mount but with a 3/8" slot is the D096/D196 for the later SXL-AO and XL900 series Homelites and the last generation of the bigger Poulans (6900/8500 and some of the late 2nd gen 4900/5400 saws).
 
K095 will work fine on a 10 series so long as there's an oiler passage from the adjuster holes to the bar groove. Some have it, and others can be modified to have it with a couple minutes of dremel work (with a reinforced cutting disc). BTDT. A095 is basically the same. Original mount for the Super E-Z Homelites.


D176 is Oregon's "multi fit" bar mount for the 10 series, most midsize/larger Poulans (306/245, 360, 3400-4000, 4200/5200, etc), early XL12 and XL700/800 series Homelites, Lombards, and others with 5/16" studs. Same mount but with a 3/8" slot is the D096/D196 for the later SXL-AO and XL900 series Homelites and the last generation of the bigger Poulans (6900/8500 and some of the late 2nd gen 4900/5400 saws).
I think you might have missed something.
 
Were the old echoes d176? I think I still have a couple 32” echo bars. Or maybe homelite?

Yes. Actually A176 (same as the early XL12 Homelites and the post sandcast Poulans}. D176 is the 'modern' bar for both of those. In Windsor speak it'd be a UXL with stud spacers, as the UXL is the Windsor version of an Oregon D096/D196. Most 1970's and early 1980's midsize/larger Poulans came with rebranded UXL's.

Eye forgots the Echos in my earlier post. The CS590-620P Echos still use the D176 mount.