M14x1.25

" OVERSIZED HOLES" For Spark plugs that have been previously repaired with a helicoil or save-A-thread style insert.

Click here for helicoil style sample

The outside thread of the BIG-SERT is M18x1.5, the failed helicoil should not be larger than 16.8mm or 660 inches.

OverSized Spark plug thread repair
kit P/n 6605141E

  Oversized spark plug repair kit stripped spark plug threads repair kit
 

SPARK PLUG INSERTS NOT INCLUDED!
 

For previously repaired Ford E-350 heads use kit
p/n 6605141E with insert p/n 66151457.

KIT SIZE KIT P/N

I N S E R T S

    LENGTH

TAPER SEAT P/N

INCHES

METRIC

M14x1.25

6605141E

.660

16.8mm

p/n 66151457
fully threaded
Insert