No. 0037C is for 4-Stroke engines. KAVAN uses platinum alloy coils; not cheaper
plated coils for No. 0036 and No. 0037. The KAVAN Glow Plugs give excellent idle characteristics and maximum power output
at full throttle. This is achieved by using a unique and very expensive spiral alloy of platinum-iridium-rhodium. The cavity design
eliminates the need for the power robbing idle bar. Standard thread: 1/4"-32.
