Delta Faucet cartridge won't go back in

[Shivam]

Hello,
I had a leak in the shower faucet, so I took the cartridge out, replaced the rubber and springs and now trying to put it back.
But it won't fit back. I have twisted and pushed with enough force, but it just won't go in all the way.
It was a little hard to take it out as well, but I didn't think it would be this hard to put it back.

Any idea? see pictures

 

[Terry]

Sometimes plumbers grease on the O-rings and cleaning out the holes at the back. Be careful though that you don't damage the brass body.

 

[Sponsor]

 

[SPSosa929]

I have encountered same problem. I bought a replacement RP 46074 but it will not seat all the way even after using grease. I cleaned out the brass housing and still wouldn't seat all the way. Any recommendations?

 

[Terry]

You might need the RP19804

 

[SPSosa929]

You might need the RP19804

I appreciate the recommendation but I meant that it was the replacement part for previous cartridge. I did buy RP19804 by mistake initially.

 

[Jadnashua]

I've had that happen, but once well-greased up with plumber's silicone grease, it went in.

 

[hj]

call 1-800-345-DELT and have them send you a complete cartridge.