Motorevo Ignition Coil Pack for HEMI 5.7L V8 UF504 — Direct-Fit, Heavy-Gauge Copper

If your HEMI-powered vehicle is showing misfires, rough idle, or reduced performance, a faulty ignition coil pack is often the cause. The Motorevo UF504 is manufactured with heavy-gauge copper windings and a ceramic insulator designed to handle engine heat and deliver a steady voltage pulse to each spark plug. It matches common OEM references so installation is straightforward for many late-model Dodge, Chrysler, Jeep and Ram V8s.

Which vehicles does this coil pack fit?

This coil is engineered for a broad range of Chrysler-family HEMI engines. It covers multiple model years across Dodge Challenger, Charger, Durango, Ram 1500/2500/3500, Chrysler 300, Jeep Grand Cherokee, Commander and newer Wagoneer/Grand Wagoneer variants. Always verify engine displacement and OEM part numbers for exact fitment.

• Fits 5.7L V8 HEMI across Dodge, Chrysler, Jeep and Ram (2006–2022 ranges depending on model)
• Compatible with 6.1L, 6.2L and 6.4L HEMI variants in specified model years
• Direct replacements for OEM numbers UF504, 56029129AA/AB/AF and related cross-references

How does Motorevo UF504 improve ignition performance?

The coil pack supplies a consistent high-voltage output to each cylinder, improving spark reliability under load and during cold starts. Better spark delivery helps the plug fire more consistently, which supports smoother combustion and steadier engine operation. The design focuses on thermal durability and electrical stability rather than cosmetic upgrades.

• Heavy copper windings for stable current delivery
• Ceramic insulation to resist high under-hood temperatures
• Engineered to maintain voltage under varying RPM and load conditions

What should I expect during installation and maintenance?

Motorevo UF504 is made to match OEM dimensions and electrical connectors, so installation typically requires standard hand tools and basic mechanical experience. Replace coils in sets when diagnosing multiple misfires or when guided by a diagnostic scan. Inspect spark plugs and wiring; a worn plug or damaged harness can cause repeated coil failures.

• Plug-and-play connector fit for listed OEM cross-references
• Recommended to install with correct torque and dielectric grease where appropriate
• Check spark plugs and ignition harness when replacing coil pack

Will this part last like an OEM unit?

This aftermarket coil pack is built from robust materials intended to withstand normal engine conditions, with components chosen to resist heat and electrical stress. Longevity depends on engine maintenance, operating environment and correct installation. Replacing coils proactively when symptoms appear helps avoid catalytic converter damage from continued misfires.

• Durable construction helps resist common failure modes such as thermal breakdown
• Performance relies on matched spark plugs and clean electrical connections
• Follow OEM service intervals and diagnostics for best results

Who this is for: Drivers and DIY mechanics who own Dodge, Ram, Chrysler or Jeep vehicles equipped with HEMI V8 engines and need a reliable, cost-effective ignition coil replacement. It’s suited for those who want an OEM-style fit and durable materials without paying dealership pricing. Verify your vehicle’s engine size and OEM part number before ordering to ensure compatibility.