Hello I recently purchased a "Borg warner s366" but when I received it in the mail I think its something else but I don't wanna flame this guy till I'm sure so here's some pics I think just as the tag says its a s300

 

I know its the s300 series ( the s366) but it just seems "small" any help?

 

call borg warner and give them that serial number

 

pull the compressor cover off and measure the wheel

 

john deere's all ran straight s300's but measure the wheel and call them with the serial as previously stated