Engine mishaps from a newbie

[Jnp35150]

New member here and need a little help. I recently purchased a new engine for my husqvarna mzt61. I google searched my engine code, 49t877-0006-g1, and a viable option for replacement that popped up was the 49t877-0024-g1. After ordering the engine and swapping it out for the old one, I ran into my problems. Unbeknownst to me at the time, the new engine's shaft diameter is 1" and the length is 3 5/32" whereas the old engine's shaft diameter is 1 1/8" and the length is 4 5/16". My problem is the drive pulley and pto clutch from my old engine will not work on my new engine. My local briggs & stratton and husqvarna dealers haven't been able to help me figure out which pulley and clutch I need. I've attempted to search myself online but no results so far. Does anyone know which clutch and pulley I need? Or does anyone know which zero turns that exact engine comes on? Sorry for the long winded post. Any and all help or suggestions will greatly appreciated. Thanks in advance.

 

[ILENGINE]

Looks like the replacement engine should of been a 49T877-0004-G1 instead of the 0024-G1

 

[Jnp35150]

Yea after further research once I discovered my mishap, I've found that a few models would've been an exact replacement without having to change pulley and clutch. I could go through the hassle and cost of shipping the engine back plus whatever restocking fee I'm charged then order an exact replacement, or I can try to find the correct pulley and clutch for that engine. I figured I'd try option #2 first and if all else fails option #1 will still be viable.

 

[7394]

Hindsight is always 20-20. Live & hopefully learn, is my motto.. These lessons are not soon to be forgotten.