Mopar SP143877AB Spark Plug

Reliable Ignition Performance for Chrysler, Dodge, Jeep, and Ram Vehicles

The Mopar SP143877AB spark plug is designed to deliver consistent ignition performance for a range of Chrysler, Dodge, Jeep, and Ram models. Engineered to meet OEM specifications, this spark plug supports efficient combustion and smooth engine operation.

• Compatible with Chrysler 300, Dodge Challenger, Charger, Durango, Jeep Grand Cherokee, and Ram 1500, 1500 Classic, 2500, 3500 models
• OEM-quality spark plug ensuring proper fit and function
• Designed for secondary ignition systems
• Part number SP143877AB for precise identification and replacement

Product Details and Specifications

The Mopar SP143877AB spark plug is a secondary ignition component engineered to maintain optimal engine performance across multiple vehicle lines. This spark plug is manufactured to meet the exacting standards required by Chrysler, Dodge, Jeep, and Ram vehicles, ensuring reliable ignition and combustion. Its design supports efficient fuel burning, which can contribute to stable engine idling and improved throttle response. The part number SP143877AB allows for easy cross-referencing and ensures compatibility with the specified models.

Compatible Vehicles and Applications

• Chrysler 300
• Dodge Challenger and Charger
• Dodge Durango
• Jeep Grand Cherokee
• Ram 1500, 1500 Classic, 2500, and 3500

This spark plug is intended for use in secondary ignition systems of these vehicles, supporting proper engine ignition and performance.

Common Issues Addressed by This Spark Plug

• Engine misfires or rough idling
• Difficulty starting the engine
• Reduced fuel efficiency due to incomplete combustion
• Loss of engine power or hesitation during acceleration
• Increased exhaust emissions

Installation Notes and Tips

When replacing spark plugs on Chrysler, Dodge, Jeep, or Ram vehicles, ensure the engine is cool before beginning installation. Use a torque wrench to tighten the spark plug to the manufacturer’s recommended specifications to avoid damage. Verify the part number SP143877AB matches the vehicle’s requirements to ensure proper fitment and performance.

Quality Assurance and Warranty Information

Mopar parts are manufactured to meet OEM standards for quality and durability. While specific warranty details for part number SP143877AB may vary, Mopar typically offers coverage against defects in materials and workmanship. Consult your vehicle’s service manual or Mopar documentation for detailed warranty information.