Bosch Spark Plug Reference Guide

[AshEvan]

My friends, is there a Bosch reference guide for spark plugs that were correct for Early and Mid 911's? Any website reference?

Thanks in advance.

[john walker's workshop]

what was, isn't now, so the guides are just a guide to the past when gas was good and life was simple. small idle jets and cold plugs don't get it anymore in a lot of applications.

[AshEvan]

Thanks John,

I have recently run in to a number of Trave Parts Kits and spare parts and wanted to know via the plug number what year 911 they were intended to assemble another Trave Kit.

Thanks again.