Champion 9201 Spark Plug - Exhaust Side

Champion Iridium Spark Plug 9201

Champion Iridium 9201 is a secondary ignition spark plug built for precise spark delivery and OE-style fitment across a wide range of import and luxury vehicles. Its fine-wire iridium center electrode and platinum ground electrode are engineered for sharp spark focus, stable ignition, and consistent performance.

Key Features

• Iridium center electrode tip for focused spark delivery
• Platinum ground electrode core and platinum pad surface for durability
• Resistor design for ignition system noise control
• Flat seat construction with 14 mm thread diameter and 0.75 in reach
• Pre-gapped at 0.039 in for applications that match the listed specification
• Champion Iridium line for OE-style replacement needs

Product Details

Champion Iridium 9201 uses a fine-wire iridium center electrode to concentrate the spark, while the platinum ground electrode helps maintain electrode integrity over time. The plug is identified as RC12WYPB4 and is built with a non-removable nut terminal, hex design, and a 0.625 in hex size. This part cross-references NGK 7658 and DENSO Auto Parts 4512 for the same application. It is a direct replacement choice for many vehicles including Mitsubishi Lancer, Hyundai Accent, and Subaru Impreza applications where the listed plug type and gap match the factory requirement.

Vehicle Fitment Examples

• Fits 2015-2020 Mitsubishi Outlander Sport, N/A
• Fits 2014-2017 Mitsubishi Lancer, N/A
• Fits 2015-2017 Mitsubishi RVR, N/A
• Fits 2016 Scion iA, N/A
• Fits 2011-2015 Bentley Mulsanne, N/A
• Fits 2000-2011 Hyundai Accent, N/A
• Fits 2006-2011 Kia Rio, N/A
• Fits 2000-2010 Subaru Forester, N/A
• Fits 2005-2009 Subaru Outback, N/A
• Fits 2005-2010 Hyundai Tucson, N/A

What It Helps Address

• Misfires caused by worn or eroded spark plug electrodes
• Hard starting from weak or inconsistent ignition spark
• Rough idle related to degraded plug performance
• Reduced throttle response from inefficient combustion
• Maintenance replacement for OE-style ignition service intervals

Installation Notes and Tips

Verify the plug type RC12WYPB4, seat style, thread diameter, reach, and gap before installation. Some listed applications use different gap specifications, including 0.032, 0.040, 0.043, 0.044, and 0.050 in, so confirm the vehicle’s service data before use. Check the ignition system condition, inspect coil boots and wires, and install to the manufacturer’s torque specification.

Quality Assurance

Champion Iridium 9201 is built as a precision ignition component for OE-style replacement use. The iridium and platinum electrode materials are selected to support consistent spark focus and long-term electrode durability in the listed applications.