ACDelco 41-993 Professional Iridium Spark Plug (Pack of 4)

Good

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.

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.