You might ought to measure the K-Force. Here is the reason why. My main belt supplier sells but the sizes have label differently lately. The B195404062 I currently have on the shelf from 2 years ago is labeled as 77-7/8 so looked up the belt on Sunbelt's ( A and I) belt to belt look-up and it shows them as being 77-1/2 and 77.15 with them currently listed as 77.15. I also recently fought a battle with them over a 3/8 belt that was to be 34.2" which turn out to be 33.75. So tight on the machine I can't even mount it. Even Husqvarna sent the same size belt. I had to modify the brake so the engagement pulley could loosen enough to where I get a standard 34" belt on.
Makes me nervous when a vendor starts changing sizes in mid stream. Makes me question the sizes when I have problems after installation. On top that vendor pulley sizes doing the same thing. A will work item on a MTD just don't get it. Causes me a lot extra work figuring out what went wrong.
Here is an image of my mower's deck. Sorry the messy look it been raining nearly constant for two weeks so I haven't got a chance to clean it. Can't even cut the grass as I would be mowing water instead. As you will see belt looks a lot tighter than yours.
