This listing is for FOUR (4) NEW DENSO spark plugs U27ETR (dual ground electrodes). Made in Japan/China.
Fitment from the European Denso Catalog for Kawasaki models:
400cc: ZRX 400 U27ETR 4155 0.8mm gap
1100cc: ZRX 1100 (ZRT10C) 72 (Standard) 1996-> U27ETR 0.7mm gap
1200cc: ZRX 1200 / ZRX 1200 R / S 78 2001-> U27ETR 0.7mm gap
NGK CR9EK replacement.
Denso fitment check: www.denso-am.eu/e-catalogue
NGK fitment check: www.ngkpartfinder.co.uk/motorbikes_scooters.php
Feel free to 'Ask a Question' if unsure of fitment for your bike.
Reviews from previous buyers that have purchased Denso spark plugs from Bell Rock Racing:
Honda NC30 supplied with Denso Y27FER-C plugs.
The plugs that you supplied last year have done well. They were fitted
into a standard NC30 that I prepped for another team. It's done a
Southern 100, a couple of club meetings and a 4hr endurance race and
still seem to be fine. They didn't miss a beat. I had the bike back for
a pre-season check over and the team said they're happy just to leave
the plugs in till later in this season.
That left me using the NGK's I had already in my supply box. They were
fitted at the beginning of the Manx Grand Prix and one failed on me in
the last practice session. (I wish I hadn't used the Denso's on the
other teams’ bike). It cost me a packet to get a set at the paddock ready
for the race the next day AND they were NGK.
Anyway, we've gone for broke for this year. We've had the engine tuned
by Slick Bass (Carl Fogarty's mechanic when he was SBK champion with
Ducati). He wants us to use the standard Denso Y27FER-C plugs in the front 2 cylinders and the Denso Y31FER-C in the rears due to them running hotter.
Thanks again for your help.
John Harrison, Douglas, Isle of Man.