Champion 9412 Spark Plug

Champion Iridium Spark Plug 9412 Overview

The Champion Iridium 9412 spark plug is engineered for reliable ignition performance in a wide range of vehicles including Acura, BMW, Honda, Nissan, and Toyota models. Designed with advanced materials and precise specifications, this spark plug supports efficient combustion and consistent engine operation.

• Iridium center electrode tip for enhanced durability and ignition
• Platinum ground electrode pad surface with J gap design
• Non-removable nut electrical terminal type
• Flat seat type with a 0.470 inch (12 mm) thread diameter
• Pre-gap size of 0.041 inch (1.05 mm) for optimal spark gap
• Resistor type spark plug to reduce electrical noise
• Hex size of 14 mm for standard installation tools
• Manufacturer heat range rating of 9 for balanced heat dissipation

Detailed Product Description

The Champion Iridium 9412 spark plug features a fine iridium center electrode tip that improves ignition reliability and longevity compared to conventional plugs. The ground electrode is constructed with a platinum pad surface and shaped with a J gap design, which helps maintain a consistent spark and reduces electrode wear. This spark plug includes a non-removable nut electrical terminal and a flat seat type, ensuring a secure fit in compatible engines. With a thread diameter of 0.470 inches (12 mm) and a hex size of 14 mm, installation and removal are straightforward using standard tools. The pre-gap size is factory set at 0.041 inches (1.05 mm), optimized for efficient combustion in vehicles such as the Honda Accord, Nissan Altima, Toyota Corolla, and BMW 335xi.

Champion Iridium Product Line

The Champion Iridium line is designed to provide enhanced ignition performance and durability through the use of iridium and platinum materials. This product line focuses on delivering consistent spark quality and longer service life, making it suitable for a variety of secondary ignition applications across multiple vehicle makes and models. The 9412 spark plug exemplifies these qualities with its precise electrode design and heat range tailored for balanced engine operation.

Applications and Common Issues Addressed

• Improves ignition reliability in Acura ILX and Honda Civic engines
• Reduces misfires and rough idling in Nissan Rogue and Toyota Camry
• Helps maintain fuel efficiency in BMW 535xi and Subaru Forester
• Supports smooth engine start-up in Lexus RX and Infiniti Q50
• Minimizes spark plug fouling in Land Rover Range Rover Sport

Installation Notes and Tips

• Verify compatibility with your vehicle’s make and model before installation
• Use a torque wrench to tighten the spark plug to manufacturer specifications
• Check and adjust the spark plug gap if necessary, though pre-gap is factory set
• Inspect the spark plug threads and seat area for cleanliness before installation
• Replace spark plugs in sets to maintain consistent engine performance

Quality Assurance and Warranty

Champion spark plugs are manufactured to meet strict quality standards, ensuring reliable performance and durability. The Iridium 9412 spark plug undergoes rigorous testing for heat range, electrode wear, and electrical resistance. While specific warranty details may vary, Champion products typically come with a limited warranty against manufacturing defects. Consult your vehicle’s service manual and Champion’s warranty policy for detailed coverage information.