NGK 7755 Spark Plug

NGK 7755 Standard Spark Plug for OE-Style Ignition

NGK 7755 is a standard spark plug built for consistent ignition performance in a wide range of domestic and import applications. It uses a copper center electrode core, nickel center electrode tip, and nickel ground electrode materials to support stable spark delivery and dependable combustion.

Compatible With Saturn SC1, Saturn SL, Saturn SL1, Saturn SW1, and select Rolls-Royce applications, this NGK Standard Spark Plug is a direct-fit service part for vehicles calling for the BKR4ESA-11 design. The 5,000 ohm resistor, .044 pre-gap, flat seat, and 14 mm thread diameter help match OE-style ignition requirements.

Key Features

• NGK Standard Spark Plug, part number 7755
• OE-style design with copper center electrode core
• Nickel center electrode tip and nickel ground electrode construction
• 5,000 ohm resistor for ignition system noise control
• .044 pre-gap, 14 mm thread diameter, 5/8 hex size
• Flat seat with 0.75 reach and non-removable nut terminal
• Manufacturer heat range 4

Product Details

NGK’s Standard Spark Plug line is built around original-equipment service standards and broad vehicle coverage. Part number 7755, also identified as BKR4ESA-11, is engineered for applications that specify this plug configuration and gap range. It is a practical choice for routine ignition service on Saturn SC1, Saturn SL, Saturn SL1, and Saturn SW1 models, as well as Rolls-Royce Silver Spur, Corniche IV, Corniche S, Flying Spur, Silver Spirit, and Touring Limousine applications listed for this part.

This part cross-references Carlson 7755 for the same application.

Common Issues This Part Can Address

• Hard starting caused by worn spark plug electrodes
• Rough idle from inconsistent spark delivery
• Misfire conditions related to plug wear or incorrect gap
• Reduced fuel efficiency from degraded ignition performance
• Service replacement needs at the recommended maintenance interval

Installation Notes and Tips

Verify the vehicle’s required plug specification before installation, including thread diameter, reach, seat type, and gap. This plug is listed with a .044 pre-gap, while some fitments note a 0.040-inch or 0.035-inch service gap requirement; confirm the exact application and adjust only if needed for the vehicle specification. Use proper spark plug socket tools and torque to the manufacturer’s service specification.

Fits 1993-2002 Saturn SC1, N/A. Fits 1991-2002 Saturn SL, N/A. Fits 1991-2002 Saturn SL1, N/A. Fits 1993-1999 Saturn SW1, N/A. Fits 1992-1998 Rolls-Royce Silver Spur, N/A. Fits 1994-1995 Rolls-Royce Corniche IV, N/A. Fits 1995 Rolls-Royce Corniche S, N/A. Fits 1995 Rolls-Royce Flying Spur, N/A. Fits 1992-1995 Rolls-Royce Silver Spirit, N/A. Fits 1994 Rolls-Royce Touring Limousine, N/A. Fits 1993 Rolls-Royce Corniche IV, N/A.

Quality Assurance

NGK is a long-established OE supplier and manufacturer with broad coverage across automotive, motorcycle, marine, and small engine ignition applications. Part number 7755 is produced to support original-equipment standards for durability and operational performance.