2250 Carnage Pictures

[Hammerhead]

JBMT & halfpint;
I cannot find parts listings to do a crossover or comparison, but from what I'm observing (2) 4327258 HD XPI B&P SERVICE KITs will install into the head of a Three Cyl Two Piston pump, replacing the ceramic plunger with steel and a new plunger barrel...effectively eliminating the ceramic failure parts.
This kit includes the following as a complete assembly(s) that installs into the head. Two are required;
3867651 O-ring Seal
4984382 Sealing Washer
4984182 Pump Tappet Barrel
4307336 Pump Tappet Plunger
4928605 Compression Spring
2872626 Spring Retainer

This will not rectify the internal seal leaks JBMT notes, and may be a throwing good money after bad situation for halfpint if you replace this Assy and shortly after develop the same seal leaks as JBMT. As stated by JBMT, this may be a "cheaper" option for the time being to remove the time bomb of the ceramic plungers until you can save the $$ for a new 2cyl pump or source a used one.

Remember, I'm completely full of it...verify what I have stated before taking the plunge...pun intended!