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Rb26 O Rings


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I wouldn't have thought that they would be worth a great deal. I dont know if the skylines also run strainers in their (Denso?) injectors.

I suppose its hard to get the right ones without pulling an injector and taking it to someone to measure up properly. I have seen quite a few part number discrepencies against various models of cars.

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I cant actually back that up now that i looked at my little list. It's not a couple hundred but its expensive. Here's trade prices and part numbers:

Name-------------------Nissans Name-------------Part Number---------Price Each
Injector O-Rings-------SEAL-O RING--------------NI-16618-78A00------7.4
Injector seals---------INSULATOR-INJECTOR-------NI-16635-78A00------10.39
Injector seals---------INSULATOR----------------NI-16636-V5000------4.18

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hooley dooley. is that $7.4 for one o-ring? or is it a pack of 6 or 12 or something? cause that is nutsoid if it's just 1 piece!

Those are price per unit mate...

As you know you need 6 of each of those to completely redo injector seals!

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Come on guy's use some brain matter,,,go straight to an Injector specialist. As the telstra add used to say "let your fingers do the walking". Nissan injectors are not anything special,,,Mazda ones are a direct swap,,,what does that tell you. Shit imagine if I'm wrong,,,oh well 1st time for everything.


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  • 2 weeks later...

I have had some dodgy aftermarket injector seals , my theory now is get genuine and do it once.

They may look nealy identical , but the last thing you need is fuel leaking straight past into the sump.

I have had to many cars towed into work with the injector o-ring being the problem.

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  • 2 weeks later...

Thanks for the replies guys, just a quick question, doesnt each injector for the rb26 actually need 2 o-rings ? i.e. one for the top and one for the bottom? Or does the bottom insulator do the job of the o ring as well ?

Edited by MrFlex
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