Champion 7428 Double Platinum Spark Plug RERX5PMPB

The Champion 7428 (RERX5PMPB) is a Double Platinum Power spark plug engineered to deliver enhanced performance and extended service life. This premium spark plug features platinum on both the center and ground electrodes, providing superior wear resistance and longevity compared to conventional plugs.

Key Features:

• Platinum fine-wire center electrode (0.8mm) and platinum pad ground electrode for maximum durability and minimal wear
• Exclusive Heat-Active alloy allows electrodes to reach optimal operating temperature quickly and maintain stable temperatures under varying engine loads
• V-trimmed ground electrode creates sharper spark focus and reduces quenching for improved ignitability
• Triple sealed interior and copper core construction reduce failure due to heat and stress
• 12mm thread diameter with 1.04-inch reach and gasket seat design
• Built-in resistor for reduced electromagnetic interference
• Pre-gapped to 0.033 inches (0.85mm)

Designed as OE replacement equipment for select BMW, MINI, and Porsche applications, this spark plug is ideal for distributorless ignition systems. The Champion Double Platinum Power design maximizes fuel efficiency and spark energy while meeting demanding ignition requirements. Torque specifications: 10-18 lb-ft for both cast iron and aluminum cylinder heads.