YB Spark plugs Sierra/Escort Cosworth (each)
 
Iridium IX Spark Plugs:
Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling.
Fine iridium tip ensures high durability and a consistently stable spark
Iridium alloy has extremely high melting point, perfect for today's high-tech, high-performance engines
Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
Outstanding acceleration, high fuel efficiency and durability
Ultimate design, technology and performance
Heat range 9 - colder than standard heat range, recommended for highly modified engines.
Thread size: 14mm
Hex size: 16.0mm
Electrode: Iridium
Thread reach: 19.0mm
Resistor: yes
Ford CVH Turbo
Application:
Ford Escort Mk3 RS Turbo Series 1 1984-1985
Ford Escort Mk4 RS Turbo Series 2 1986-1990
Ford Fiesta Mk3 RS Turbo 1989-1992
Ford Cosworth YB 16v Turbo
Application:
Ford Sierra RS Cosworth 3 door 1986-1987
Ford Sierra Cosworth RS500 1987
Ford Sierra Sapphire RS Cosworth 2wd 1988-1989
Ford Sierra Sapphire RS Cosworth 4wd 1990-1992
Ford Escort RS Cosworth 4wd T34 1992-06/1994
Ford Escort RS Cosworth 4wd T25 06/1994-1996
 
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