Need help with my 421U111 deck.

[sndbmd]

New to this asking for help thing. I am hoping someone might know of a manual for my 421U111 deck. I need a new idler pulley and don't know the part number.

 

[dropte]

It’s likely 542-520-r91.

they used that pulley on most of those decks.

 

[kmcconaughey]

This should be the correct manual for your mower, click here ---> 38", 42" and 48" Mower Decks

 

[sndbmd]

OK this is definitely the right direction! You all are the best!

 

[dropte]

For parts, I usually look it up on partstree.com, and then usually buy it somewhere else

 

[sndbmd]

It’s likely 542-520-r91.

they used that pulley on most of those decks.

Any chance you now the part numbers for the spindle pulleys?

 

[dropte]

ARI Part Stream will probably get you in the right place. Not sure exactly what pulleys you’re looking for an how much of the spindle assembly you might need.
Tbh I wouldn’t put a ton of effort into the deck unless you need it for mowing right away. You can usually snatch them up cheap for parts later on if need be.

 

[dramsey]

Idler: 756-3005 Pulley, Flat Idler, This part replaces IH-542520-R91.
Spindle: 956-3006 V-PULLEY-4L 3.12 x 3/4, This part replaces IH-473432-R91.

Available at CubCadet.com

 

[dramsey]

IH-473433-R92 CENTER PULLEY DRIVE, This part replaces IH-473433-R91.