Spark plug thread repair kit for the repair of deep seated plug configurations. The Plug Tap is us...Spark plug thread repair kit for the repair of deep seated plug configurations. The Plug Tap is used to clean the original thread, followed by the Stepped Tap which locates using the original thread as a guide and cuts a M15.8 x 1.25 thread. The plug Tap is then used in tandem with the Seat Cleaner to clean the spark plug seat. Finally, screw the required threaded insert on to the Insert Driver, lock in to position, add thread locking solution to the exterior of the threaded insert, and screw in to the newly cut M15.8 x 1.25 thread. Loosen the locking nut to release the threaded insert. Plug Tap Stepped Tap - ensures correct alignment Seat cleaner Insert driver Selection of threaded inserts Contents: Plug Tap M14 x 1.25 (HSS 4241) Step Tap M14 x 1.25: M15.8 x 1.25 (HSS4241) Wrench for Tap / Seat cleaner (Steel) T bar (CR-V) Insert driver (Steel) Seat Cleaner (CR-MO) Threaded inserts: M14 x 1.25 (10 x 15mm, 10 x 9.4mm length) Hex key 2.5mm
US PRO M14 x 1.25 Spark Plug Thread Repair Kit for Deep Seated Plugs Tap/InsertsFree delivery in 1–3 days£44.95Visit shop →
US PRO Tools Thread Repair Kit For Deep Seated Spark Plugs M14 x 1.25 5916Free delivery in 1–3 days£45.05Visit shop →
Product Information
Full details
This guide is for mechanics and DIY enthusiasts who need to repair damaged spark plug threads. The US PRO Tools Thread Repair Kit offers a reliable solution for restoring threads to their original specifications, ensuring a secure fit for spark plugs. Note that this kit is specifically designed for M14 x 1.25 threads and deep-seated plug configurations.
All features
Model Part Number
5916
Brand
us pro tools
Extended Product Information
FAQs
What thread size is this kit for?
This kit is specifically designed for M14 x 1.25 thread size.
What materials are the tools made from?
The taps are made from HSS 4241, and the other tools are made from CR-MO and steel.
What is the purpose of the Seat Cleaner?
The Seat Cleaner is used to clean the spark plug seat, ensuring a proper seal for the spark plug.
How do I choose the right threaded insert?
The kit includes a selection of M14 x 1.25 threaded inserts. Choose the insert based on the depth needed for your specific application.
Can I use this kit on all types of engines?
This kit is suitable for most engines that use M14 x 1.25 spark plug threads and deep-seated plug configurations. Always verify compatibility.
What should I do if the tap breaks?
Carefully remove the broken tap using a tap extractor tool. If you can't remove it, consult a professional mechanic.
What is the function of the Insert Driver?
The Insert Driver is used to install the threaded inserts into the newly cut threads, providing a secure and precise installation.
How do I store the kit?
Store the kit in a clean and dry place, away from extreme temperatures and moisture, to prevent rust and corrosion.
Troubleshooting
Stepped Tap won't align correctly.
Ensure the tap is seated properly in the existing thread before cutting. Apply even pressure and turn slowly.
Insert doesn't seat properly.
Make sure the new thread is clean and free of debris. Verify that you're using the correct insert size and apply thread locking solution.
Spark plug won't tighten.
Double-check the thread size of the spark plug against the repaired thread size. Ensure the insert is correctly installed and seated.
Pros and Cons
Pros
Restores damaged spark plug threads effectively.
Includes all necessary components for a complete repair.
Made from durable materials for extended use.
Ensures proper spark plug seating with the seat cleaner.
The stepped tap design guarantees accurate thread alignment.
Cons
Specifically designed for M14 x 1.25 thread size only.
Requires some mechanical skill and familiarity with tools.
May not be suitable for severely damaged or stripped threads.
Setup, Compatibility & Care
Preparation: Remove the spark plug and inspect the threads. Clean the area around the spark plug hole to prevent debris from entering the cylinder.
Cleaning: Use the Plug Tap to clean the original thread.
Threading: Use the Stepped Tap to cut the new thread.
Seat Cleaning: Clean the spark plug seat with the Seat Cleaner.
Insert Installation: Attach the required threaded insert to the Insert Driver, apply thread locking solution, and install into the newly cut thread. Loosen the locking nut to release the threaded insert.
Compatibility: This kit is designed for M14 x 1.25 spark plug threads only. Ensure compatibility before use.
Care: Clean the tools after each use. Store in a dry place. Regularly inspect the tools for wear and tear.