• Manufacturer Part Number: LKR8AP. • MPN: LKR8AP. • Spanner Size: 16 mm. • Thread Size: M12 x 1,25. Upgrade your spark ignition system with the NGK Spark Plug NGKLKR8AP. With its advanced design and technology, the NGK Spark Plug NGKLKR8AP ensures optimal ignition and combustion, resulting in improved fuel efficiency and engine response.