Can't figure out what replacement carburator to order for my Briggs engine and would appreciate some advice

[rkode]

I need to order a replacement carburator for the Briggs engine on my Craftsman T1400 rider.
But, for some reason, I can't identify what to order.
Can I ask for some help ?

The numbers, stamped on the frot on my engine are:
31R977 0041 G1 141013ZA (Please see attachment)

The carb currently installed on the engine reads "Nikki". (Please see attachment)

Here's where I could use the help
The illistrated parts list for this engine reads:
591734 Carburetor
(Nikki)
(Used Before Code
Date 16010400)
-- -- -- -- -- -- Note -- -- -- -- -- --
593029 Carburetor
(Nikki)
(Used Before Code
Date 16010400)
Used on Type No(s).
0046.

I'm not certain at all as to how to read the date the above is referencing or then relate it to the one stamped on my engine (141013ZA )

Would anyone here be able to advice me on what part number I SHOULD be looking for ? (I'm thinking it should be 591734 but I'n not certain.)

Much obliged for any help

 

[ILENGINE]

591734 because your engine was built in 2014 and the cutoff date is January 4, 2016 and you have a type of 0041 not type 0046

 

[rkode]

Hey ILENGINE !
Thanks for your reply.

Much appreciated.

 

[hlw49]

It has been superseded to 594605