High-performance Autolite spark plug engineered for reliable ignition in vintage International Harvester tractors including models F12, F14, F20, F30, O14, W12, and WR9.

Description

Quality Aftermarket: Spark Plug (Autolite)
Fits: International Tractor 10-20, 15-30, 22-36 .025″ plug gap; Regular, F12, F14, F20, F30, O12, O14, W9, WR9, WR9S .025″ plug gap; W12, W14, W30, W40
Specifications
7/8″ – 18 thread diameter
5/8″ reach
15/16″ hex
cold heat range
standard tip / non-resistor
Replacement Numbers

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