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NPR rings 21-GNH08450

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Old Oct 10, 2013 | 06:01 AM
  #1  
Teresh's Avatar
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Default NPR rings 84.5mm # 21-GNH08450

Hello everyone.
While putting YCP 84.5mm pistons into B20 block I broke 2nd compression ring in last piston.
Help me please - is it possible to buy NPR rings # 21-GNH08450 (as box says) and where can I do it? I couldn't find (by internet) any NPR dealer or shop which sells this item. Can you give me contacts? I am from Ukraine, but I have a friend in US, who can help me to ship them.
Btw there is NPR number for OEM style pistons SWH30437-2 - rings sets are different!
As for 2nd compression ring - it is 1,2 \ 3,4 while in 21-GNH08450 it is 1,2 \ 3,5 and different ring shape. So i guess I cant use these rings with that YCP pistons (or could I ?).
here is calatog I found http://www.jegpistons.com.ar/Catalog...os%2080-90.pdf

sorry for my english.
best regards, Andrey

Last edited by Teresh; Oct 10, 2013 at 07:32 AM.
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Old Oct 10, 2013 | 10:19 AM
  #2  
Rocket's Avatar
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Default Re: NPR rings 21-GNH08450

Do the pistons take 1/1.2/2.8 ring pack?

Supertech offers it for the best price.

PM me for more help if needed.
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Old Oct 10, 2013 | 10:38 AM
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Default Re: NPR rings 21-GNH08450

I got a set from an Ebay seller
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Old Oct 10, 2013 | 10:51 AM
  #4  
Teresh's Avatar
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Default Re: NPR rings 21-GNH08450

Rocket
PMed
yes, NPR's are 1.0, 1.2, 2.8
and Supertech are 1.0, 1.2, 2,75 - does it matter?
and what about ring shapes and ring material(no information for Supertech) - should Supertech work ok with YCP pistons?

Originally Posted by thundernoodle
I got a set from an Ebay seller
Can you give me seller's contact?
I still didnt find place to buy NPRs

Last edited by Teresh; Oct 11, 2013 at 12:08 PM.
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