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Champion 9812 Spark Plug
| Brand | Champion 9812 |
|---|---|
| Ground Electrode Tip Design | J gap |
| Ground Electrode Core Material | Platinum |
| Electrical Terminal Type | Non-removable nut |
| Center Electrode Tip Material | Iridium |
| Pre-Gap Size | 0.043 |
| Pre-Gap Size | 1.10 |
| Ground Electrode Quantity | 1 |
| Insulator Height | 0.08 |
| Manufacturer Heat Range | 8 |
| Seat Type | Flat |
| Reach | 0.866 |
| Thread Diameter | 0.551 |
| Thread Diameter | 14.000 |
| Resistor Type | Yes |
| Hex Type | Hex |
| Classification | Champion iridium |
| Hex Size | 0.625 |
| Hex Size | 15.880 |
| Plug Type | Rc8zwypb4 |
| Product line | Champion Iridium |
| Fits | Honda · 6 vehicles |
Iridium center electrode. Fine-wire design sharpens spark focus for stronger performance.
Platinum ground electrode. Adds durability to the spark plug’s firing surface.
Champion Iridium. Premium plug line engineered for maximum performance.
Cross-references AMS Automotive 4294, Anchor 3377 and Anchor 3432 for the same application. See all 19.
Champion Iridium Spark Plug 9812
Champion Iridium 9812 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 and support consistent performance in the cylinder.
Key Features
- Champion Iridium spark plug, part number 9812
- Fine-wire iridium center electrode for focused spark delivery
- Platinum ground electrode core material
- J-gap ground electrode tip design
- Pre-gapped at 0.043 in. / 1.10 mm
- Resistor type plug with non-removable nut terminal
- 14 mm thread diameter, 0.866 in. reach, flat seat
- Hex size: 0.625 in. / 15.880 mm
Product Details
The Champion Iridium line is built around a fine-wire iridium center electrode and platinum ground electrode construction for controlled spark focus and reliable ignition performance. This Champion Iridium 9812 spark plug is specified as RC8ZWYPB4 and uses a J-gap design, 14 mm thread diameter, flat seat, and resistor construction. It is a direct-fit ignition component for 2006-2011 Honda Civic applications listed below, including 2006 Honda Civic and 2007-2011 Honda Civic coverage. This part cross-references AMS Automotive 4294 for the same application.
What It Helps Address
- Rough idle caused by worn spark plug electrodes
- Hard starting related to weak ignition spark
- Misfire conditions from incorrect plug gap or worn plugs
- Reduced throttle response from inconsistent combustion
- Maintenance replacement for specified Honda Civic ignition service
Installation Notes and Tips
Verify the plug type number RC8ZWYPB4 and confirm the specified gap before installation. Use the correct torque procedure for the cylinder head material and inspect ignition coils, boots, and threads during service. Compatible with 2006 Honda Civic and 2007-2011 Honda Civic applications listed in the fitment data; follow the vehicle service manual for final installation and gap verification.
Quality Assurance
Champion designs the Iridium line with premium electrode materials for precise spark control and dependable ignition service. Part number 9812 is built to the listed OE-style specifications for the confirmed Honda Civic applications.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2011 | Honda | Civic | 1.8L | L4 | GAS | N/A | Gap 0.044 (in); Plug Type Number RC8ZWYPB4; Champion Iridium |
| 2010 | Honda | Civic | 1.8L | L4 | GAS | N/A | Gap 0.044 (in); Plug Type Number RC8ZWYPB4; Champion Iridium |
| 2009 | Honda | Civic | 1.8L | L4 | GAS | N/A | Gap 0.044 (in); Plug Type Number RC8ZWYPB4; Champion Iridium |
| 2008 | Honda | Civic | 1.8L | L4 | GAS | N/A | Gap 0.044 (in); Plug Type Number RC8ZWYPB4; Champion Iridium |
| 2007 | Honda | Civic | 1.8L | L4 | GAS | N/A | Gap 0.044 (in); Plug Type Number RC8ZWYPB4; Champion Iridium |
| 2006 | Honda | Civic | 1.8L | L4 | GAS | N/A | OE Type; Gap 0.044 (in); Plug Type Number RC8ZWYPB4; Champion Iridium |
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