Iridium Spark Plugs 8 Pack 3186 TR5GP 7397 TR5IX Fit for Chevy Silverado 1500 5.3 Avalanche Suburban Tahoe Camaro Colorado,GMC Sierra 1500 Yukon,Cadillac Escalade,Ford F150,Hummer H2 H3 V8 4.8L-6.2L

These are great spark plugs. I recommend them.Price is pretty good too.

I installed these in my 2005 Hummer H2 And they seem to work very well I guess Time will tell so I cannot state about longevity. They were easy to install and came pre gapped. The iridium fine wire center electrodes stability is six times harder than platinum, iridium alloy has extremely high melting point, giving it higher durability to heat and electrical wear, ideal for today's high performance engines and vehicles. I was a little weary at first not using factory spark plugs but these seem very well built and fit perfect for the price. I feel it's a great value and I will update this review but as of now my vehicle is running tiptop..

THANK YOU!

working good

The Iridium Spark Plugs 8 Pack (3186 TR5GP 7397 TR5IX) is a high-performance replacement spark plug set designed for a variety of popular vehicles, including the Chevy Silverado, GMC Sierra, Ford F150, and several other models with V8 engines (4.8L–6.2L). Here’s a review of the product’s features:Compatibility:This spark plug set is compatible with a wide range of vehicles, including models from Chevrolet, GMC, Cadillac, Ford, and Hummer.Specifically, it fits vehicles such as the Chevy Silverado 1500 5.3, GMC Sierra 1500, Cadillac Escalade, Ford F150, and more. It's tailored for V8 engines in the 4.8L to 6.2L range, making it versatile for a broad selection of truck and SUV models.Performance and Quality:Iridium spark plugs are known for their superior performance, durability, and longevity compared to traditional copper or platinum spark plugs.The TR5IX plugs (Iridium) offer excellent ignition efficiency, promoting better fuel combustion and engine performance. This results in improved power, acceleration, and smoother idling, all of which contribute to overall vehicle performance.Iridium is more resistant to wear, corrosion, and heat, meaning these plugs should last longer than standard plugs—potentially up to 100,000 miles or more, depending on your driving conditions.Fuel Efficiency and Engine Health:By providing a more consistent and stronger spark, Iridium spark plugs improve combustion efficiency, which can contribute to improved fuel economy and lower emissions.With better spark quality, the engine experiences smoother operation, which can reduce wear and tear over time, leading to enhanced engine health and longevity.Installation:Installation is relatively straightforward for anyone familiar with vehicle maintenance. However, it’s recommended to ensure proper gap settings for specific engine requirements, as they can vary slightly based on the vehicle model.These spark plugs are designed to be direct replacements for the stock spark plugs, so installation should be easy for those who are comfortable with basic vehicle maintenance tasks.Pros:Long-Lasting Durability: Iridium spark plugs are highly resistant to wear and corrosion, leading to longer service life.Enhanced Performance: Improves ignition, fuel efficiency, and overall engine performance.Wide Compatibility: Fits a range of vehicles, including popular models from Chevy, GMC, Ford, Cadillac, and Hummer.Better Fuel Economy: More efficient combustion could result in a slight improvement in gas mileage.Cons:Price: Iridium spark plugs tend to be more expensive than copper or platinum plugs. However, the longer lifespan and improved performance often justify the higher initial cost.Not Suitable for All Engine Types: These are specifically for V8 engines (4.8L–6.2L), so if your vehicle has a different engine configuration, these won’t be the right fit.Conclusion:The Iridium Spark Plugs 8 Pack (TR5GP 7397 TR5IX) is a great investment for anyone looking to boost the performance and longevity of their engine, especially for drivers with V8 engines in Chevy, GMC, Ford, and Cadillac vehicles. The higher cost of the iridium plugs is offset by their durability and the improvements in engine performance, fuel economy, and overall driving experience. If you’re looking for reliable, long-lasting spark plugs, this set is a solid choice for a variety of vehicles.