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Champion 449 Spark Plug
| Brand | Champion 449 |
|---|---|
| Center Electrode Tip Material | Nickel |
| Classification | Copper Plus Automotive Spark Plug |
| Electrical Terminal Type | Non-Removable Nut |
| Gap Style | J Gap |
| Ground Electrode Core Material | Nickel |
| Ground Electrode Material | Nickel Copper Alloy |
| Ground Electrode Quantity | 1 |
| Ground Electrode Tip Design | J Gap |
| Hex Size | 0.625 |
| Hex Size | 15.880 |
| Hex Type | Hex |
| Insulator Height | 0.059 |
| Insulator Projection (Inch) | 0.059 |
| Manufacturer Heat Range | 7 |
| Plug Type | RA7YC |
| Pre-Gap Size | 0.033 |
| Pre-Gap Size | 0.85 |
| Reach | 0.75 |
| Resistor Type | Yes |
| Seat Type | Flat |
| Thread Diameter | 0.472 |
| Thread Diameter | 12.000 |
| Product line | Copper Plus |
| Fits | BMW and Arctic Cat · 11 vehicles |
Copper core electrode. Improves conductivity and heat control for dependable performance.
J-gap design. Promotes consistent ignition for smooth overall wear.
Champion Copper Plus. A proven spark plug line with nickel and copper-alloy components.
Cross-references AMS Automotive 6651, 96464000 and DCPR7EA9 for the same application. See all 5.
Champion Copper Plus 449 Spark Plug
Champion Copper Plus 449 is a replacement spark plug built for dependable ignition performance and steady heat control. Its copper core electrode improves conductivity, while the nickel-based electrode materials support consistent wear characteristics for everyday driving.
Compatible With BMW Z4 2006-2008, BMW M3 2001-2006, and BMW Z3 2001-2002 applications that call for plug type RA7YC. This Champion 449 spark plug is a direct-fit ignition service part for drivers maintaining BMW secondary ignition performance.
Key Features
- Copper core electrode for improved conductivity and heat transfer
- J-gap design with a pre-gap size of 0.033 in. / 0.85 mm
- Nickel center electrode tip material
- Nickel ground electrode core material with nickel copper alloy ground electrode
- Resistor spark plug design
- Flat seat type with 0.75 in. reach
- 12 mm thread diameter and 0.625 in. hex size
- Manufacturer heat range 7
Product Details
The Champion Copper Plus line focuses on practical ignition service with a copper core that helps move heat away from the firing end and supports stable spark delivery. Part number 449 uses a J-gap configuration, a non-removable nut terminal, and a flat seat design, making it a straightforward service replacement where RA7YC is specified. For BMW M3, BMW Z4, and BMW Z3 owners, Champion 449 provides the core specifications needed for routine spark plug replacement in the correct application.
This part cross-references AMS Automotive 6651 for the same application.
What It Helps Address
- Hard starting caused by worn spark plug electrodes
- Rough idle from inconsistent ignition firing
- Misfire conditions related to plug wear or incorrect gap
- Reduced throttle response from degraded spark delivery
- Heat-related plug performance issues in service intervals
Installation Notes
Verify the required plug type, thread diameter, reach, seat style, and gap before installation. Confirm the vehicle calls for RA7YC and check the specified gap for the application, especially on BMW M3 2001-2006, BMW Z4 2006-2008, and BMW Z3 2001-2002 fitments. Use proper spark plug service procedures and torque to the vehicle manufacturer specification.
Quality Assurance
Champion Copper Plus spark plugs are built around a copper core design for conductivity and heat control, with nickel electrode materials selected for dependable wear characteristics in standard ignition service.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2008 | BMW | Z4 | 3.2L | L6 | N/A | Gap 0.032 (in); Plug Type Number RA7YC; Copper Plus |
| 2007 | BMW | Z4 | 3.2L | L6 | N/A | Gap 0.032 (in); Plug Type Number RA7YC; Copper Plus |
| 2006 | BMW | M3 | 3.2L | L6 | N/A | Gap 0.032 (in); Plug Type Number RA7YC; Copper Plus |
| 2006 | BMW | Z4 | 3.2L | L6 | N/A | Gap 0.032 (in); Plug Type Number RA7YC; Copper Plus |
| 2005 | BMW | M3 | 3.2L | L6 | N/A | Gap 0.032 (in); Plug Type Number RA7YC; Copper Plus |
| 2004 | BMW | M3 | 3.2L | L6 | N/A | Gap 0.032 (in); Plug Type Number RA7YC; Copper Plus |
| 2003 | BMW | M3 | 3.2L | L6 | N/A | Gap 0.032 (in); Plug Type Number RA7YC; Copper Plus |
| 2002 | BMW | M3 | 3.2L | L6 | N/A | Gap 0.032 (in); Plug Type Number RA7YC; Copper Plus |
| 2002 | BMW | Z3 | 3.2L | L6 | N/A | Gap 0.032 (in); Plug Type Number RA7YC; Copper Plus |
| 2001 | BMW | M3 | 3.2L | L6 | N/A | Gap 0.032 (in); Plug Type Number RA7YC; Copper Plus |
| 2001 | BMW | Z3 | 3.2L | L6 | N/A | Gap 0.032 (in); Plug Type Number RA7YC; Copper Plus |
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