Champion 7418 Spark Plug

Champion Double Platinum Power Spark Plug 7418

Champion Double Platinum Power spark plug 7418 is built for drivers who want consistent ignition performance, stable idle quality, and long service life. Its platinum fine-wire center electrode and platinum pad ground electrode help deliver a sharper spark focus, while the Heat-Active alloy supports dependable performance across a wide range of operating conditions.

Compatible With select BMW, Porsche, Lexus, Dodge, Jeep, and Mitsubishi applications, this spark plug is a direct-fit option for many late-model and earlier OE-style ignition setups. The Champion Double Platinum Power line is aimed at vehicles that need durable platinum construction and reliable secondary ignition performance.

Key Features

• Champion Double Platinum Power spark plug, part number 7418
• Platinum center electrode and platinum ground electrode for extended service life
• Heat-Active alloy helps maintain consistent spark performance
• J-gap ground electrode design for focused ignition
• Resistor type plug for reduced electrical noise
• Flat seat design with 0.039 in pre-gap and 1.043 in reach
• Non-removable nut terminal and 5/8 in hex size

Detailed Description

Champion 7418 is a platinum spark plug engineered for secondary ignition systems that call for OE-style fitment and durable electrode materials. The platinum fine-wire center electrode promotes a concentrated spark, while the platinum pad ground electrode supports wear resistance over time. With a manufacturer heat range of 7 and a resistor design, this plug is suited to vehicles that require stable ignition output and controlled electrical interference.

This part cross-references Bosch FR7NPP332 for the same application. It also aligns with OE-style service needs on vehicles such as BMW 328i, Porsche Cayenne, and Lexus IS300, where correct gap, reach, and seat type matter for proper combustion performance.

What It Helps Address

• Rough idle caused by worn spark plugs
• Hard starting from weak ignition output
• Misfire conditions related to electrode wear
• Reduced throttle response from inconsistent spark delivery
• Service intervals that call for platinum plug durability

Installation Notes and Tips

• Verify the required gap before installation; listed pre-gap is 0.039 in, but vehicle-specific applications may call for a different setting.
• Confirm seat type, reach, and hex size against the engine specification before installing Champion 7418.
• Use the vehicle service manual for torque and removal procedures to avoid thread or insulator damage.
• Check coil boots and ignition components during spark plug service to help prevent repeat misfire issues.

Quality Assurance

Champion is a long-established ignition brand, and the Double Platinum Power line uses platinum electrode construction and Heat-Active alloy materials to support consistent performance and durability in service.