Champion 9001 Spark Plug - Intake Side

Champion Iridium Spark Plug for OE-Style Performance

Champion Iridium 9001 is a resistor spark plug built with a fine-wire iridium center electrode and a platinum ground electrode for sharp spark focus and consistent ignition performance. It is a direct-fit option for a wide range of import and domestic applications, including Mitsubishi Outlander Sport, Hyundai Elantra, and Saab 9-3 fitments.

Key Features

• Iridium center electrode tip for precise spark concentration
• Platinum ground electrode core material for durable electrode construction
• Pre-gapped at 0.041 in / 1.05 mm
• Resistor design for ignition system noise control
• Flat seat, 14 mm thread diameter, 0.75 in reach
• Non-removable nut terminal and 0.625 in hex size
• Champion Iridium product line for OE-style replacement applications

Detailed Description

Champion 9001 is part of the Champion Iridium line, which focuses on fine-wire electrode design for a concentrated spark kernel and stable combustion. The iridium center electrode and platinum ground electrode construction support consistent ignition in applications that call for an OE-style spark plug such as the Mitsubishi Lancer, Hyundai Santa Fe, Toyota Prius, and Volvo XC90. This part cross-references NGK 1313 and Autolite XP3923 for the same application.

With a 14 mm thread diameter, flat seat, 0.75 in reach, and resistor construction, this spark plug is specified for a broad range of vehicles across multiple model years. The plug type RC10WYPB4 appears in the fitment notes for many listed applications, including Audi A4, Kia Soul, and Subaru Legacy.

What It Helps Address

• Rough idle caused by worn spark plug electrodes
• Hard starting from weak or inconsistent spark output
• Misfire conditions tied to plug wear or incorrect gap
• Reduced throttle response from degraded ignition performance
• Service intervals where OE-style replacement is required

Installation Notes and Tips

Verify the vehicle’s required gap before installation, since fitment notes list several applications with specific gap values such as 0.044 in, 0.040 in, 0.039 in, and 0.035 in. Confirm thread diameter, reach, seat type, and plug type RC10WYPB4 against the original part before installation. For fitment examples, this part fits 2011-2020 Mitsubishi Outlander Sport, 2011-2017 Mitsubishi Lancer, 2007-2011 Hyundai Azera, 2007-2009 Toyota Prius, and 1999-2011 Saab 9-3.

Quality Assurance

Champion Iridium plugs are built to Champion’s OE-style specification standards for secondary ignition service. The iridium and platinum electrode materials are selected for precise spark focus and durable construction in demanding daily-driver applications.