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The mkiv Supra Owners Club

NGK BKR7E or BCPR7ES


Duffman
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Q. What's the difference between the BCPR*ES (3330) and the BKR*E (6097) that get recommended a lot?

A. These 2 plugs are IDENTICAL in operation and completely interchangeable. But, the BKR*E is the recommended fit. One difference is that the BKR*E has an ISO sized connector to the coil pack and the BCPR*ES has a slightly larger one. The other obvious difference is that they BKR uses a V-groove electrode and the BCP uses a flat electrode. I would recommend using BKR*E's first but switch to BCPR*ES's if you have an ignition problems as I believe tired coil packs that have seen many a change will be slightly stretched inside and will benefit from having a larger plug body to fit over.

 

From here http://www.mkivsupra.net/vbb/showthread.php?t=41927&highlight=spark+plug+faq

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