212 Injector Nozzles

G’day ,
I’m hoping someone can help me with my injector nozzles for my 212 (9T) Sn 95C135,

The part number on the nozzle is 9F4113
It doesn’t come up ,
The part number in the 9T book is 9F2392,
It then has three alternate number

2S4442
3S6638
6H3364

Part number 2S4442 is not available,

6H3364 and 3S6638 are available, which one do I get for my 212 (9T) Sn 95C135 Grader?

6H3364 comes up in 79C1-UP parts book I got and think that’s the one I need ,
What’s the difference between the two?

Cheers
Danny

2S4442 is the capsule, 3S6638 is the Valve Service Group (includes seals)
9F4113 is the capsule, 6H3364 is the Valve Service Group.
Both are still available, the 6H3364 is the latest version and is correct for the D311.

Thanks Old Magnet , you are a Temple of Knowledge