Champion 9800 Spark Plug

Champion Iridium Spark Plug 9800 Overview

Champion Iridium 9800 is a secondary ignition spark plug built for precise spark delivery and stable combustion. It uses a fine-wire iridium center electrode with a platinum ground electrode to sharpen spark focus for consistent performance in the applications listed below.

Compatible With select Honda Civic, Acura CSX, Honda S2000, Jeep Grand Cherokee, Saab 9-5, and Saab 9-3 applications, this plug is specified by OE-style plug type RC7WYPB4 and a 0.041 in pre-gap. The Champion 9800 part number is also referenced in cross-application catalogs for related ignition service needs.

Key Features

• Champion Iridium line spark plug for secondary ignition service
• Fine-wire iridium center electrode for sharp spark focus
• Platinum ground electrode core material for durable electrode construction
• J-gap ground electrode tip design
• Pre-gapped to 0.041 in / 1.05 mm
• Resistor type plug with non-removable nut terminal
• Flat seat design, 14 mm thread diameter, 0.75 in reach
• Hex size 0.625 in / 15.880 mm
• Manufacturer heat range 7

Product Details

Champion Iridium 9800 is engineered around a fine-wire iridium center electrode and a platinum ground electrode to support a focused spark event. That construction helps maintain ignition precision in engines that call for plug type RC7WYPB4, including 2006-2011 Honda Civic, 2007-2010 Acura CSX, and 2000-2009 Honda S2000 applications. It also appears in fitment for 2002-2004 Jeep Grand Cherokee, 1999-2003 Saab 9-5, and 1999 Saab 9-3. This part number, 9800, is listed across multiple interchange references for related OE-style service applications.

This part cross-references NGK 7746 for the same application.

What It Helps Address

• Misfires caused by worn or eroded spark plug electrodes
• Hard starting related to weak ignition spark
• Rough idle from inconsistent combustion
• Loss of throttle response tied to degraded plug performance
• Service intervals where OE-style spark plug replacement is required

Installation Notes and Tips

Verify the plug type, thread diameter, reach, seat type, and heat range before installation. Confirm the specified gap for the vehicle application; this plug is pre-gapped at 0.041 in, while some listed vehicles note OE gap targets near 0.044 in or 0.040 in. Use the correct hex size and tighten to the vehicle manufacturer’s specification. Check the ignition system condition, coil output, and plug well cleanliness during service.

Quality Assurance

Champion Iridium plugs are built with iridium and platinum electrode materials for durable ignition service and consistent spark focus. The Champion 9800 part number is cataloged for multiple OE-style applications, including Honda Civic, Acura CSX, and Honda S2000 fitments.