NGK 4288 Spark Plug

NGK Laser Platinum Spark Plug Overview

The NGK Laser Platinum Spark Plug 4288 is engineered for reliable ignition performance in select Dodge and Mercedes-Benz vehicles. Designed with durable materials and precise specifications, this spark plug supports efficient combustion and consistent engine operation.

• Part Number: 4288 (Plkr7a)
• Center Electrode Tip Material: Platinum for enhanced durability
• Center Electrode Core Material: Copper for optimal conductivity
• Ground Electrode Core Material: Nickel with standard tip design
• Resistance: 1000 ohms to reduce electrical interference
• Pre-Gap Size: 0.032 inches for precise spark delivery
• Hex Size: 5/8 inch for standard installation tools
• Thread Diameter: 12.00 mm with 26.5 mm reach
• Seat Type: Flat for secure sealing
• Electrical Terminal Type: Non-removable nut
• Manufacturer Heat Range: 7 suitable for moderate engine temperatures

About the NGK Laser Platinum Spark Plug Line

The Laser Platinum Spark Plug line from NGK features platinum-tipped center electrodes that provide improved wear resistance and longer service life compared to conventional spark plugs. This technology helps maintain stable ignition performance over time, making it suitable for vehicles requiring precise spark timing and durability, such as the Mercedes-Benz C-Class and Dodge models listed.

Detailed Product Description

This NGK spark plug 4288 combines a copper core center electrode with a platinum tip to balance excellent electrical conductivity and extended durability. The nickel ground electrode with a standard tip design ensures consistent spark gap integrity. With a resistance of 1000 ohms, it minimizes radio frequency interference, protecting sensitive vehicle electronics. The flat seat and 26.5 mm reach provide a secure fit and proper combustion chamber sealing. The non-removable nut terminal type simplifies installation and ensures a reliable electrical connection. Designed with a heat range of 7, this spark plug suits moderate operating temperatures commonly found in compatible Dodge and Mercedes-Benz engines.

Compatible Vehicles and Common Applications

• Compatible with Mercedes-Benz models including C230, C250, C280, C300, C350, CL550, CLK350, CLK550, CLS550, E280, E300, E350, E550, G550, GL450, GL550, GLK350, ML350, ML450, ML550, R350, R550, S350, S400, S450, S550, SL550, SLK280, SLK300, SLK350
• Compatible with Dodge Sprinter 2500 and Sprinter 3500 models
• Addresses ignition issues such as misfires, rough idling, poor fuel economy, hard starts, and reduced engine power

Installation Notes and Tips

• Ensure the spark plug gap is set to 0.032 inches before installation
• Use a 5/8 inch socket wrench for proper torque application
• Apply anti-seize compound sparingly on threads if recommended by vehicle manufacturer
• Do not overtighten to avoid damaging the flat seat or threads
• Verify compatibility with your specific vehicle model and engine type before installation

Quality Assurance and Warranty

NGK spark plugs are manufactured to meet strict quality standards, ensuring consistent performance and durability. The Laser Platinum Spark Plug 4288 undergoes rigorous testing for electrical resistance, heat range, and material integrity. While specific warranty details may vary, NGK typically offers coverage against manufacturing defects. Consult your vehicle’s service manual or NGK documentation for warranty terms related to this spark plug.