ACDelco 41-993 Professional Iridium Spark Plug

Bought these for my 2001 Blazer 4.3 vortec engine. The old champion platinum spark plugs were gapped too tight but the truck still ran pretty decent, although it misfired on cold start. The old plugs were very old and visibly looked worn out. I replaced them with these AcDelco spark plugs. These came gapped anywhere from 0.060 to 0.065 based on my measurements but I left it alone. With these spark plugs, and all new Acdelco distributor cap, rotor and Acdelco spark plug wires, the truck runs insanely smooth. On stop lights, I literally can’t feel the engine running. Now I know why many people on forums say use OEM ignition parts on these engines, because it really made a huge difference. It’s worth every penny, and these iridium’s should most definitely last me at least another 120k miles.

I used these on my 1996 Chevy Van Conversion and I've got to say, I'm pretty happy with them, awfully expensive though, it's just one of those things where if money's tight you just have to make price & quality meet somewhere in the middle, but as for me, Spark plugs on my Van are super hard to change so I wanted the longest lasting plug I could find,

They were great, no issues

Just installed these spark plugs today. AC Delco makes great replacement parts for my 1997 Chevy Silverado K1500 that always fit, last, and perform. These particular spark plugs are “pre gapped at 0.60” so they are correct and ready for installation right out of the box. My truck runs perfect again and the price for a pack of 4 plugs is VERY affordable.

Buenas bujías les va a encantar

I'm a true believer in AC Delco products. These plugs are supposed to be better. We'll see. However, only 1 out of 8 plugs where gaped correctly. Supposed to be pre gaped to .060 when I checked .068 to .053.

Genuine OEM spark plug. The 8 that I installed had the gap already set to 0.060 which is what the vortec 5.7 gap is. Might be the same for other motors. The price beats local parts stores at 12 dollars a plug. I would still double check the gap on them but they did not need adjusted.

great these are new ones also

Good

Ojala volvieran al precio que las compre estaban regaladas

Having read negative reviews where orders were received short, I was worried that something would go wrong with the order. I took a chance as it was sold directly by Amazon and in my experience, if something goes wrong, they will correct it. It was a good price and and I bought 2 packs of 4. They were received complete and all plugs were gapped 0.060 in from the factory as they were supposed to. All was perfect.

Die Lieferung war schnell, die Qualität ist hervorragend. Allerdings wurde zusätzliche Ware geliefert. Wir würden gerne den Verkäufer kontaktieren.

Excelentes bujías de iridio, calidad premium de General Motors, vienen grabadas en el metal de la bujía con la leyenda: ensambladas en U.S.A. con partes japonesas. Cada paquete contiene 4 bujías, pedí 3 paquetes para tener 12 bujías en total. Funcionan de maravilla en mi Chevrolet Astro 2003 AWD, motor Vortec 4.3 Son originales, premium y de excelente calidad, las recomiendo ampliamente.