Champion 9806 Spark Plug

Champion Iridium Spark Plug 9806

Champion Iridium 9806 is a secondary ignition spark plug built for precise spark delivery and stable combustion. Its fine-wire iridium center electrode and platinum ground electrode focus the spark for consistent performance in a wide range of import applications, including Toyota Camry, Lexus RX330, and Porsche 911 fitments.

Key Features

• Fine-wire iridium center electrode for sharp spark focus
• Platinum ground electrode core for durable electrode performance
• J-gap ground electrode tip design
• Resistor type spark plug for ignition noise control
• Flat seat design with 14 mm thread diameter and 0.75 reach
• Pre-gapped at 0.041 in (1.05 mm)
• Champion Iridium classification, part number 9806

Product Line Details

Champion Iridium is Champion’s iridium spark plug line for drivers who need a precise, durable secondary ignition component. The 9806 uses an iridium center electrode paired with a platinum ground electrode to support consistent spark focus and dependable ignition performance across many OE-style applications.

Detailed Description

Champion 9806 is engineered for vehicles that call for the RC8WMPB4 plug type and related OE-style applications. The plug’s iridium center electrode helps maintain a concentrated spark, while the platinum ground electrode core supports long-term electrode stability. With a flat seat, non-removable nut terminal, 0.625 hex size, and resistor construction, this spark plug is built to match common import ignition requirements. It cross-references Bosch FR7KPP332 and NGK 1312 for the same application. Common fitment coverage includes Toyota Camry, Lexus GS430, Lexus RX330, Audi A6 Quattro, and Porsche 911 applications.

What It Helps Address

• Rough idle caused by worn spark plugs
• Hard starting from weak or inconsistent spark output
• Misfire conditions tied to degraded secondary ignition components
• Reduced throttle response from inefficient combustion
• Ignition noise concerns in resistor-equipped systems

Installation Notes and Tips

Verify plug type, thread diameter, reach, seat style, and gap before installation. This part is listed with a 0.041 in pre-gap, but several vehicle applications in the fitment data specify different gap requirements, including 0.032 in, 0.036 in, 0.039 in, 0.040 in, 0.043 in, and 0.044 in. Confirm the vehicle-specific specification for your exact year, make, and model before tightening. Fits 2002-2006 Toyota Camry, 2004-2006 Lexus RX330, and 2007-2011 Audi A6 Quattro as listed in the fitment data.

Quality Assurance

Champion manufactures this iridium spark plug to OE-style dimensional and material standards for secondary ignition service. The iridium center electrode and platinum ground electrode construction support consistent spark delivery in applications such as Toyota Camry, Lexus RX330, and Porsche 911. Part number 9806 is identified as Champion Iridium.