Big-Sert 5141S-457 M14 x 1.25mm Spark Plug Thread Repair Kit

Description

Big-Sert 5141S-457 M14 x 1.25mm Spark Plug Thread Repair Kit

The Big-Sert 5141S-457 kit includes 8 assorted length inserts

• 1 51401 Washer seat 9.4mm (copper)
• 2 51407 Washer seat 16.8mm (copper)
• 1 51409 Washer seat 23mm (copper)
• 1 51453 Taper seat 11mm (silver)
• 2 51457 Taper seat 16.8mm (silver)
• 1 51469 Taper seat 24mm (silver)

Reliable fast permanent repair. Used after helicoil failure or inserts .660 or smaller in diameter.

“OVERSIZED HOLES” For Spark plugs that have been previously repaired.

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

SPARK PLUG KITS DO NOT INCLUDE INSERTS