843 pump?

[aksparkey01]

Im helping a buddy work on his and it has a 843 pump in it. so far all that i can find is that its a 175 pump. I was going to time it for him and was wondering if anyone knew the cpl# for this pump.
numbers that i found on the pump are
927
pes6p120a12
0rs7281
402 736 843
thanks for any help

 

[Mo Smoke]

my 847 uses 3.2mm lpc and 7.5mm got me 21.5 degreese