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Hi guys, I am finally changing my belts, and I bought some new plugs. The one's I ordered are NGK DCPR8E. When I went to remove the old plugs, those are NGKDPR8EA. Is it o.k. to use the plugs I bought? Not sure what the difference is on these. Also I was wondering what to set the gap of the plugs to. The old plugs are gaped at .030 or .762mm. Is that O.k. to use? The new plugs are set to this gap out of the box. Thank you for your help!
Regards, Paul

Hi Paul.

Have a look at the table at http://www.ngk.com.au/spark-plugs/produ ... ing-system

This should sort out what is different between the two.

Hope this helps.

Cheers.

Nick.

Hi Paul.

According to the Workshop manuals, the P750 and 906 use a Champion RA6YC, and the 907 uses a Champion RA4HC. Both the P750 and 906 recommended gap is 0.6mm (or 0.0236"). The 907 has a gap range of 0.5 - 0.6mm (or 0.019" - 0.023").

Using the NGK Web site comparison tool, the RA6YC is a DPR8EA-9 and the RA4HC is a DCR8EIX.

Using the NGK Model Select tool, the 906 and 907 both use a DCPR8E or a DCPR8EIX (the Iridium equivalent) with a gap of 0.6mm. The P750 doesn't make an appearance in the Model Select tool?

All as clear as mud...........

Cheers.

Nick.

Thanks Nick, I appreciate the info!