I've got those exact nozzles from that exact site in my OM617, they are a teeny bit bigger than the factory 617 nozzles, I've probably put 5-10k on them so far, the car runs amazing with them, I shimmed them to pop just a hair on the high side (50-100psi above the spec), they've settled in nicely and quieted down a lot, the first 50 miles or so they were really noisy, very pronounced "diesel clatter", but now they are smooth as butter, and gave me a nice bump in low end power.

on an OM606, they should make a nice stock replacement.

__________________
1982 300D (w123, "Grey Car")
1982 300D (w123, "Blue Car")
2001 Ford F150 "Clifford" (The Big Red Truck)
1997 Dodge Ram 2500 12V Cummins
1996 Dodge Ram 2500 12V Cummins
Previous Vehicles:
1995 E300D, 1980 300SD, 1992 Buick Century, 2005 Saturn Ion