NGK 6696 Spark Plug - Exhaust Side

NGK Standard Spark Plug 6696 Overview

NGK Standard Spark Plug 6696 is a direct-fit ignition service part built around OE-style construction and consistent electrical performance. It uses a copper center electrode, nickel tip materials, and a 5,000 ohm resistor to support stable spark delivery in a wide range of older import and domestic applications.

Compatible With select Mercedes-Benz SLK230, Toyota Supra, Honda CRX, Nissan Sentra, and other listed applications, this NGK BCPR5ES-11 spark plug is a practical replacement for routine ignition maintenance. The 0.044 in pre-gap and flat seat design align with the specified service requirements for many vehicles in the fitment list.

Key Features

• NGK Standard Spark Plug line for OE-style ignition service
• Part number 6696 / BCPR5ES-11
• 5000 ohm resistor for ignition noise suppression
• Copper center electrode core with nickel tip material
• Nickel ground electrode core with standard ground configuration
• Pre-gapped to 0.044 in
• 14 mm thread diameter, 0.75 in reach, flat seat
• Non-removable nut terminal and 5/8 in hex size

Product Details

NGK builds this Standard Spark Plug line for drivers who want an OE-equivalent replacement with consistent fit and service characteristics. The BCPR5ES-11 design uses a copper core for efficient heat transfer and nickel electrode materials for dependable everyday operation. With a manufacturer heat range of 5 and a flat seat, it matches the specifications called out across many Toyota, Honda, Nissan, Acura, Mercedes-Benz, Chevrolet, Ford, and Mercury applications.

This part cross-references AMS Automotive 6696 for the same application. For fitment-based searches, it is commonly selected for 1998-2000 Mercedes-Benz SLK230 spark plug replacement, 1986-1992 Toyota Supra ignition service, and 1988-1991 Honda CRX tune-up maintenance. It also appears in searches for 1989-1990 Nissan Sentra spark plug replacement and 1987-1989 Nissan Pathfinder service.

Common Uses

• Rough idle caused by worn spark plug electrodes
• Hard starting from aged ignition components
• Misfire concerns related to incorrect plug gap or wear
• Reduced fuel economy from weak spark output
• Routine tune-up service on older import vehicles

Installation Notes

Verify the vehicle-specific gap requirement before installation. Some listed applications call for a 0.044 in gap, while the 1998-2000 Mercedes-Benz SLK230 notes a 0.039 in gap. Use the correct torque procedure for the cylinder head material, and confirm the plug seat type, thread diameter, and reach match the engine specification before tightening.

For fitment searches, this plug is listed for 1989-1992 Toyota Cressida, 1986-1992 Toyota Supra, and 1990-1991 Acura Integra, along with additional Honda, Nissan, and Toyota applications shown in the fitment data.

Quality Assurance

NGK is a long-established OE supplier and manufacturer with broad coverage across automotive, motorcycle, marine, and small engine applications. The Standard Spark Plug line reflects that OE-focused manufacturing approach, with specifications intended to meet original equipment standards for durability and operational performance.