The two technologies have special characteristics in regard to thermal behavior. As many car manufacturers are not prepared to compromise on the quality and performance of their diesel glow plugs, they choose the proven NGK technology.
4 x NGK Y-517J Glow Plugs for Nissan, Renault & Vauxhall (See Description)
4 X NGK CZ71 6836 Glow Plug for Nissan Cubstar Terano Patrol Renault Master 3.0
10 x NGK Y-516J Glow Plug Fits Clio, Kangoo, Kangoo Express, Megane I
4 x Genuine NGK Y-503J Glow Plugs Fits Citroen/Fiat/Peugeot/Nissan/Rover 5005
NGK Y1002AS 8926 Glow Plug
NGK Y-910J Glow Plug