Spark Plugs DCPR7EIX 3144 Motorcycle Replacement Iridium Spark Plug Set of 4 Compatible with Harley-DavidsonSportster 1988-2016 Harley-DavidsonSportster 883 1986-2016 6046 9701 97637

Winter time is bike maintenance time for me as I can. I had not changed out the spark plugs in my 2015 Harley-Davidson Iron 883 and they were just a touch overdue at the end of this riding season. I got this four-pack since they're supposed to fit. I pulled the old plugs, checked them out (the engine appears to be running properly from the colors), and put a touch of never seize on the threads, and in they went. These plugs fit perfectly and the bike fired right up. I didn't hear any change in the engine sounds and after a short ride (it was pretty cool that day) the engine did not miss or have any other apparent issues. The great thing now is the box is labeled with what they are and what they fit so when it comes time to change plugs again, I have two more waiting. 5/5.

The plugs work well and are able to start the engine even on a cold morning (admittedly it doesn't get _that_ cold here). But then again them plugs are still new, so there's that to factor in.I'm not sure what to make of the "typos" printed on the plug's insulator (the porcelain part): IRIDIUIM. Do these plugs really feature an iridium electrode?On the product's box, a sticker was slapped on that says DCPR7EIX, which I take it, is meant to indicate that this is a direct substitute to NGK's DCPR7EIX. But on the plug itself, it's DCP7REIX.I'm in the fence with respect to this product. On the one hand, my motorcycle starts and runs well, and yet I keep wondering about Iridiuim and DCP7REIX.