Ignition Coil + Spark Plugs for Ram 1500 (2011-2012) 3.7L

Direct-Fit Ignition Coil and Spark Plug Kit for 2011-2012 Ram 1500

What it Does: The Ignition Coil and Spark Plug Kit replaces worn secondary ignition components on the 2011-2012 Ram 1500 to restore peak combustion efficiency, eliminate engine misfires, and stabilize erratic idle.

The Stock Ram 1500 Ignition Breakdown

Factory ignition modules on the fourth-generation DS platform equipped with the 3.7L PowerTech (EKG) V6 suffer from severe thermal degradation over time. Continuous underhood heat cycling deteriorates internal coil epoxy potting and winding insulation, leading to dielectric breakdown and micro-arcing. Simultaneously, electrode erosion expands the spark plug gap well beyond factory tolerance. This increased gap elevates primary circuit resistance, forcing the ignition coils to work harder until secondary voltage drops, triggering P0300-series diagnostic trouble codes, sluggish throttle response, and unburned fuel dumping into the exhaust stream.

The Engineering Solution

This ignition service kit replaces tired hardware with high-dielectric epoxy-molded coils featuring precision-wound copper windings to resist heat soak and voltage leakage. Paired with six matched spark plugs engineered for balanced thermal dissipation and stable flame-front propagation, this package restores uniform spark delivery across all cylinders. Designed as a direct mechanical and electrical interchange for OEM part numbers 5149199AA, 68320417AA, and UF640, this matched set ensures crisp throttle tip-in, lower emissions, and maximum burn efficiency under heavy engine loads.

Technical Specifications

Compatibility

• 2011 Ram 1500 (3.7L V6 Gas)
• 2012 Ram 1500 (3.7L V6 Gas)

Frequently Asked Questions

Does this fit the DS 1500?
Yes, this is a direct fit for the 2011-2012 Ram 1500 equipped with the 3.7L PowerTech engine.

Why does this kit include 3 coils for a 6-cylinder engine?
The 3.7L PowerTech V6 uses a waste-spark configuration where three dual-output coil packs trigger both a primary cylinder and a paired companion cylinder simultaneously.

The Ram Durability Standard

Work-ready half-ton trucks require steady ignition performance to tow, haul, and idle reliably in extreme fleet environments. Refreshing your secondary ignition hardware ensures consistent low-end torque delivery and protects your exhaust catalysts from raw hydrocarbon wash under demanding truck workloads.