Direct OEM Replacement
Precision-engineered SP143877AB spark plug guarantees seamless compatibility with 2012-20 RAM, Jeep, Dodge 5.7L HEMI engines.
High-Performance Nickel Alloy Core
Durable nickel electrode and ceramic insulator ensure optimal heat dissipation, reducing misfires under extreme loads.
Laser-Welded Ground Strap
Patented laser-welding minimizes voltage leakage, enhancing ignition efficiency for towing/hauling applications.
Factory-Calibrated Gap (0.040")
Pre-set gap eliminates installation errors, maintaining OEM fuel efficiency and emission standards.
Corrosion-Resistant Shell
Triple-plated zinc coating protects against salt/chemical corrosion, ideal for off-road or coastal climates.
Bulk Pricing Advantage
Wholesale-ready packaging with 20% volume discounts for fleet/workshop bulk orders.
Cross-Industry Application
Fits heavy-duty trucks (RAM 1500), SUVs (Jeep Grand Cherokee), and performance sedans (Charger/Challenger R/T).