DTNZ 16pc M14 × 1.25 Spark Plug Thread Repair Kit (M16 Tap) – With Case

The DTNZ 16-Piece Spark Plug Thread Repair Kit is a professional solution for repairing stripped or damaged spark plug threads in aluminium and cast iron cylinder heads.

Designed for M14 × 1.25 spark plug threads, this kit allows damaged threads to be accurately re-tapped and repaired using thread inserts, restoring the spark plug seat to original condition without removing the cylinder head.

Ideal for workshops, mechanics, and serious DIY users, this kit helps avoid costly head replacement or engine removal. Key Features

Repairs M14 × 1.25 spark plug threads

Suitable for aluminium & cast iron cylinder heads

Includes M16 tap for thread insert installation

Restores damaged threads to original size

Prevents spark plug blow-out and misfires

Workshop-grade hardened steel tools

Supplied in a durable storage case What’s Included (16pcs)

M16 × 1.25 Tap

Spark plug thread repair inserts (M14 × 1.25)

Insert installation tools

Thread repair accessories

Blow-moulded plastic carry case

(Complete kit for professional spark plug thread repair) Specifications

Thread Size: M14 × 1.25

Tap Size: M16

Application: Spark plug thread repair

Material: Hardened steel

Use: Petrol engines

Storage: Plastic carry case Applications

Repairing stripped spark plug threads

Engine maintenance & repair

Workshop & automotive use

Preventing costly cylinder head replacement