Time-Sert 1812 M8 x 1.25MM Metric Thread Repair Kit

Time‑Sert 1812 Thread Repair Kit – M8 x 1.25

The Time‑Sert 1812 Thread Repair Kit provides a permanent, high‑strength repair for damaged M8x1.25 threads. Manufactured in the United States, Time‑Sert kits use solid‑wall, thin‑walled steel inserts that deliver OEM‑quality results in aluminum and other soft metals. This kit is widely used for restoring stripped threads in cylinder head bolts, spark plug holes, oil drain pans, and other critical applications.

The 1812 kit includes five (5) steel inserts, each with a metric length of 11.7mm, engineered for long‑term durability and secure seating.

⚠ Important GM Rocker Arm Notice

This 1812 kit is not designed for GM rocker arm thread repair. For GM rocker arm applications, you must use:

• Time‑Sert 1812 CORE – for first‑time thread repair
• Time‑Sert 1812 CORE BS – for second‑time thread repair

Using the correct CORE kit ensures proper depth, alignment, and long‑term reliability in GM rocker arm assemblies.

✔ Kit Includes

• Drill
• Counterbore
• Tap
• Installation Driver
• (5) Steel Inserts – Part #18121

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