Bosch FR78 Platinum+4 Spark Plug

The Bosch FR78 Platinum+4 spark plug features revolutionary firing technology that combines surface air gap technology, nickel-yttrium four ground electrodes, and a heat-fused center electrode with pure platinum, delivering reliable ignition performance for your engine.

Key Features:

• Four-electrode design with M14 x 1.25 thread size and 19mm thread length
• 1mm electrode gap with 16mm spanner size
• OE-specific design manufactured to meet or exceed Original Equipment requirements
• 28 Nm tightening torque specification
• Platinum center electrode for extended service life and durability

This spark plug provides optimum engine performance, smoother acceleration, and top fuel efficiency. The unique four-ground electrode design ensures consistent firing and improved combustion across a wide range of operating conditions.