Difference in Time Sert's 4412 and 4412E Spark Plug Repair Kits

www.wiseautotools.com/time-se... Time Sert 4412 and 4412E are both M14x1.25 spark plug thread repair kits that can do repairs for taper seat and washer spark plugs. The 4412E (E for EXTENDED) is the kit with longer tooling which is more suited for doing repairs where the spark plug is not near the surface. If there's a well and the spark plug is 4 or 5 inches down the longer tooling in this kit is much easier to use. The 4412 with shorter tooling is best for repairs when the spark plug is near the surface. In fact the shorter tooling may also be best when there's limited access in the work area. These kits are NOT the best choice however when working on 4.6, 5.4 and 6.8 Fords. Also, if a previous repair was done using a Helicoil, Save a Thread or some other competitor's brand making the hole bigger the 4412 or 4412E cannot be used. A Big Sert is the repair for oversize holes. Meaning a 5141 or 5141E could possibly be used. Or if working on the 4.6, 5.4 or 6.8 Ford engines the 5553 or 5600 would be the go to choice. We may also have a lower cost alternative depending upon the situation. Call for assistance in finding the best fix for your application at 800-734-8665 x251.

[@Georgie82]

Hi and thanks for the video, very clear.
Are the instructions that come with the 4412 kit accurate for all its applications?
In my case the heads are 243's coming of a Chevy LS6. What i'm trying to ask is if the step by step procedure remains the same for my application?

[@WiseAutoTools]

Instructions are included in the kit. Domestic vehicles typically have taper seat plugs and foreign vehicles have washer seat plugs which means there will be a gasket. Here's more on these kits www.wiseautotools.com/blog/whats-the-difference-in-timesert-4412-and-4412e/