?? about pintle cap on injector

I got a set of 24# injectors from a guy. He gave me the set becuase he did not need them. One problem was the cap is cracked on two of them. Can I just take the caps off my 19#ers and put them on the 24's or do I need to buy different ones. If I have to buy new ones,where do I get them.
 
The new ones are fuel injector o-ring kit comes w\ 2 o-rings plastic washer and cap.When I did my upper and lower I redid the injectors.each kit was 2.95 in CA.I cracked the last injector cap went all the way to the store picked up another that b a s terd broke too.they look the same size.
 
lol if you can get the cap off and back on the injetor without breaking it, I think it would work. Those are a total PITA to do. You might consider replacing the o-rings just to be safe on all of them, but pull them off and put them on over the caps...at least that's what I did. I broke too many of the new caps and pretty much didn't have a choice lol. You can get the kits at O'Reilly, PepBoys, I think maybe NAPA...anywhere that carries the Borg Warner brand...