NGK 4853 Spark Plug

NGK Laser Platinum Spark Plug Overview

The NGK Laser Platinum Spark Plug 4853 is engineered for reliable ignition performance in select Audi models. Designed with precision materials and specifications, this spark plug supports efficient combustion and consistent engine operation for vehicles like the Audi 200 Quattro, S4, and S6.

• Part Number: 4853 (PFR7B)
• Compatible with Audi 200 Quattro, S4, and S6
• Center Electrode Tip Material: Platinum for durability
• Center Electrode Core Material: Copper for optimal conductivity
• Ground Electrode Core Material: Nickel with standard design
• Resistance: 5000 ohms to reduce electrical noise
• Pre-Gap Size: 0.028 inches for precise spark gap
• Hex Size: 5/8 inch for installation
• Thread Diameter: 14 mm with 0.75 inch reach
• Flat Seat Type and Non-removable Nut Terminal

Detailed Product Description

The NGK Laser Platinum Spark Plug 4853 features a platinum-tipped center electrode that enhances wear resistance and maintains a stable spark over time. The copper core center electrode improves thermal conductivity, helping to dissipate heat efficiently. The ground electrode is made from nickel with a standard tip design and configuration, ensuring consistent spark delivery. This spark plug includes a resistance rating of 5000 ohms to minimize radio frequency interference, which is important for modern vehicle electronics. The pre-gap size of 0.028 inches is factory set to optimize ignition performance in compatible Audi engines.

With a flat seat type and a thread diameter of 14 mm, this spark plug fits securely in the combustion chamber. The 5/8 inch hex size allows for straightforward installation using common tools. The insulator height of 50.50 mm and a reach of 0.75 inches are designed to meet the specifications required by Audi 200 Quattro, S4, and S6 models.

About the NGK Laser Platinum Spark Plug Line

The Laser Platinum Spark Plug line from NGK is designed to provide a balance of durability and performance. Featuring a platinum tip on the center electrode, these spark plugs offer improved wear resistance compared to standard plugs. This design helps maintain a consistent spark gap and ignition quality over extended service intervals, making them suitable for vehicles requiring reliable secondary ignition components.

Applications and Common Issues Addressed

• Compatible with Audi 200 Quattro, S4, and S6 models requiring part number 4853
• Helps resolve misfires caused by worn or degraded spark plugs
• Reduces ignition system electrical noise with 5000 ohm resistance
• Improves cold start performance and throttle response
• Supports consistent combustion to reduce engine hesitation

Installation Notes and Tips

• Ensure the spark plug gap is set to 0.028 inches before installation if adjustment is needed
• 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 Audi 200 Quattro, S4, or S6 before installation

Quality Assurance and Warranty

NGK spark plugs are manufactured to meet strict quality standards for ignition components. The Laser Platinum Spark Plug 4853 undergoes rigorous testing to ensure durability and performance consistency. While specific warranty details may vary, NGK products typically come with manufacturer-backed quality assurance to support reliable operation in compatible Audi vehicles.