VÖLKEL Thread Repair Kits for spark plug threads M14x1,25, HexTap SP, 12,7 / 17,5mm, set of 17 pcs.

This spark plug thread repair kit for restoring damaged spark plug thread seats is for M14x1.25. Use it when the existing internal thread is damaged and the original screw connection should be restored with a controlled insert repair.

VÖLKEL Thread Repair Kits for spark plug threads M14x1,25, H

Features and applications

This spark plug thread repair kit for restoring damaged spark plug thread seats is for M14x1.25. Use it when the existing internal thread is damaged and the original screw connection should be restored with a controlled insert repair.

The thread designation must match the existing component before the repair or installation process starts. The kit should be selected by the component thread, available wall thickness, and the required installation workflow. Keep the setup controlled by checking alignment, chip removal, seating position, and final thread engagement.

Applications

• rebuilding stripped or worn M14x1.25 threads using an insert based repair sequence
• service cases where replacing the complete component is less practical than repairing the thread
• repeatable repair preparation using coordinated drilling, STI tapping, inserting, and checking steps
• tool room or field service work where all required kit parts must stay matched to the thread size

Benefits

• kit structure keeps the repair workflow connected to M14x1.25
• coordinated preparation, STI tapping, insertion, and checking steps reduce the risk of mixing tools from different sizes
• insert repair can retain the original screw size when the component condition allows controlled preparation
• spark plug thread focus supports service repairs where the thread seat and installation depth must be controlled

Application limits

• A repair kit only works when the damaged component can be prepared correctly; replace the component or use a different repair method if alignment or remaining wall strength is not sufficient.

Step by step

1. Compare M14x1.25 with the component drawing or the original fastener before selecting the kit.
2. Remove contamination and damaged thread material from the repair area.
3. Use the preparation tool from the kit sequence while keeping the tool aligned with the original axis.
4. Tap the receiving thread with the matching STI tap from the repair system.
5. Clean the prepared thread before the insert touches the component.
6. Drive the insert into the thread with the installation tool specified for the kit.
7. Finish the installation step by removing the tang if required.
8. Verify smooth screw engagement and document the repair where your process requires traceability.

Used together with

Each component in the kit has its own VÖLKEL item number for reordering.

• STI HexTap for M14x1.25 spark plug thread HSS-G - M 16 x 1.25: item 19001
• V-COIL Solid thread insert type SP M 14 x 1.25 - 12.7 mm: item 19138
• V-COIL Solid thread insert type SP M 14 x 1.25 - 17.5 mm: item 19139

How to choose

Confirm M14x1.25, the insert length, and every included tool before starting the repair.