NGK 91175 Spark Plug

Laser Iridium Spark Plug Overview

NGK 91175 is a Laser Iridium spark plug built for Suzuki powersports applications that call for precise ignition performance and OE-style specifications. It combines an iridium center electrode with a nickel ground electrode and a 0.036-inch pre-gap for consistent spark delivery.

Key Features

• Laser Iridium design for stable ignition performance
• Iridium center electrode tip with copper core for efficient conductivity
• Nickel ground electrode with taper-cut tip design
• Flat seat, 10.00 mm thread diameter, and 0.75 reach
• 5,000 ohm resistance and stud terminal type
• Part number 91175, also identified as CR7EIA-9

Detailed Description

NGK 91175 is engineered as a direct replacement spark plug for a range of Suzuki ATV and scooter applications, including the Suzuki AN400 Burgman ABS and Suzuki KingQuad models listed in the fitment data. The plug uses a laser iridium center electrode tip, a standard ground configuration, and a factory-specified 0.036-inch gap on applicable Suzuki KingQuad applications. Its 5/8 hex size, flat seat, and 48.80 mm insulator height support OE-style service replacement where the original plug specification matches these dimensions. The NGK 91175 part number is commonly referenced as CR7EIA-9.

NGK’s OE supplier background and long-standing ignition focus make this spark plug a practical choice for maintenance on Suzuki AN400 Burgman ABS and Suzuki KingQuad models. If you are replacing worn plugs on a Suzuki LT-A400F KingQuad ASi or Suzuki LT-F400F KingQuad FSi, this NGK 91175 plug matches the listed application data and specification set.

What It Is Used For

• Replacing a fouled or worn spark plug that causes hard starting
• Restoring consistent ignition in engines with misfire or rough idle symptoms
• Maintaining proper combustion when the original plug gap has drifted
• Addressing spark plug wear from extended service intervals
• Supporting OE-spec ignition service on Suzuki ATV and scooter applications

Installation Notes and Tips

Verify the thread diameter, reach, seat type, and heat range before installation. Set the gap to the OE specification where required, and confirm the plug matches the engine application listed for your Suzuki model. Use the part number 91175 or CR7EIA-9 when cross-checking service references.

Quality Assurance

NGK is a major OE spark plug supplier in North America and manufactures ignition components to original equipment standards. Part number 91175 reflects NGK’s OE-focused design approach for reliable service replacement.