Newer IP diff. vs older '90 era IP??

[ttman4]

Anybody know what the diff between a '90 era IP and say a '93 IP? Mel you know, or anybody?
James

 

[aaklingler]

I think the main differences are that the 92.5 and up is bigger inside and has the external fuel screw.

 

[Diezel_Cowboy]

Anybody know what the diff between a '90 era IP and say a '93 IP? Mel you know, or anybody?
James

If you are talking about the 6.9 pump as compared to the 7.3 then the 7.3 pump actually has a larger piston to pump the fuel, that is the main difference.