Need Briggs and Stratton engine assistance.

[AllisD14]

Good Morning
This is not a tractor question. I apologize if this is a nuisance. This FORUM is the best for helping me with my vintage tractors.
I have a KEY lawnmower from the early 90s. The KEY manufacturer in FL is out of business. The deck is fabricated, not pressed, which makes it good quality, and I think worth the engine swap out for a new.

I have the specs, etc., for the new engine. SmallEngineWarehouse helped determine the replacement, mounting like for like, etc.

104M02-0197 - 7.25 ft-lbs Briggs & Stratton 725 EXi Series Engine,
Vertical 7/8"x3-5/32" Shaft, 3/8-24 Tapped, Ready Start, Light Flywheel, Blade Safety Brake and glad to help.

I need the blade attachment assembly. Briggs and Stratton are unable to assist due to the manufacturer, KEY, are no longer. This was the last response:

"the blade adaptor is supplied by the equipment manufacturer, not Briggs & Stratton. You will need to locate a blade adaptor that fits a 7/8 diameter shaft.

We’d suggest a web search for an aftermarket alternative."

Aftermarket choices on AMAZON are many. I searched using Vertical 7/8"x3-5/32" Shaft, 3/8-24.

Can someone help me determine which one is correct, who to contact?

Thanks in advance

 

[Gene Davis(Ga.)]

Find a Rotary brand website, they used to have them.

 

[560Dennis]

Arnold mfg. should make it. They have a help section at tractor supply .