NGK Iridium IX Spark Plugs 16-Pack for Ram 5.7L / 6.4L V8 - Newparts

Upgrade your Ram 1500 with a 16-pack set of NGK Iridium IX spark plugs from Newparts. Built for high-mileage V8 engines, these plugs combine a copper center core with an iridium tip and a standard ground electrode to deliver consistent ignition across a wide range of driving conditions. The set ships in original NGK packaging with all required hardware for a straightforward replacement.

What’s inside

• 16 x NGK Iridium IX Spark Plugs
• Genuine NGK parts with original packaging
• Included installation hardware for direct replacement
• Vehicle-fit confirmation via Amazon Confirmed Fit

Key specifications at a glance

• Thread diameter: 0.551 in
• Center electrode: copper core with iridium tip
• Ground electrode: standard ground configuration, nickel core
• Reach: 26.5 mm
• Pre-gap: 0.044 in
• Heat range: 5
• Seat type: gasket
• Resistance: 5000 ohms

Fitment and usage

This 16-pack is described as compatible with Ram 1500 models featuring 5.7L V8 engines across model years 2011 through 2024. Always double-check your specific year and trim to ensure the proper plug type for your vehicle. The listing notes Amazon Confirmed Fit for confidence during shopping.

Why choose NGK Iridium IX

Iridium IX plugs are crafted for durability and dependable performance. The combination of a fine iridium tip and copper core supports efficient combustion, potentially smoother starts and consistent idle over time. While results vary by vehicle and driving style, these plugs are designed to withstand wear and last longer between maintenance cycles.

Installation and care

Before installation, verify the pre-gap size of 0.044 inches and replace gaskets if needed. Use standard tools to remove old plugs and install the new ones to factory torque specifications for a proper seal and electrical contact.