Trusted Thread Repair Solutions: Pro-Thread™ & Power-Coil™
Chances are you’re already familiar with our Pro-Thread™ and Power-Coil™ ranges — our trusted line of thread repair and restoration tools engineered for professionals. Designed to restore damaged threads and reinforce worn-out fastener holes, these kits cover a broad spectrum of thread sizes for engine work, spark plug ports, oil pans, and more. Whether you’re working with aluminum, cast iron, steel, or even plastics, Pro-Thread™ and Power-Coil™ deliver long-lasting, wear-resistant threads that often outperform the original.
We’re excited to expand this proven product family with three new additions:
98181 – M18 x 1.5 Spark Plug Thread Repair Kit
98187 – M18 x 1.5 Insert Set (Inserts Only)
98199 – Spark Plug Thread Repair Workshop Kit
- Master assortment of thread repair tools for spark plug ports across common automotive sizes
- Includes STI Taps, Insertion Tools, and Stainless Steel Inserts
- Perfect for aluminum cylinder heads, motorcycles, power equipment, and small engines
- Restores thread strength with heat- and corrosion-resistant stainless steel inserts
- Simple process: DRILL, TAP, INSERT, SNAP
- Repairs are often stronger than the original threads
- Kit Contents:
- 38109 – M10 x 1.00 (Non-Tapered Seat) - Tap, (5) .339" & (5) 1/2" Inserts
- 38129 – M12 x 1.25 (Non-Tapered Seat) - Tap, (5) 1/2" & (5) 3/4" Inserts
- 38149 – M14 x 1.25 (Non-Tapered Seat) - Tap, (5) 3/8", (5) 1/2", & (5) 3/4" Inserts
- 98141 – M14 x 1.25 (Tapered Seat) - Tap, (5) 3/8", (5) 1/2", & (5) 3/4" Inserts
- 98181 – M18 x 1.50 - Tap, (5) 1/2" Inserts
|
Part No. |
Thread Size |
Seat Style |
Inserts Included |
|
38109 |
M10 x 1.00 |
Non-Tapered |
(5) .339" & (5) 1/2" |
|
38129 |
M12 x 1.25 |
Non-Tapered |
(5) 1/2" & (5) 3/4" |
|
38149 |
M14 x 1.25 |
Non-Tapered |
(5) 3/8", (5) 1/2", (5) 3/4" |
|
98141 |
M14 x 1.25 |
Tapered |
(5) 3/8", (5) 1/2", (5) 3/4" |
|
98181 |
M18 x 1.5 |
Non-Tapered |
(5) 1/2" |
Why Techs Trust Pro-Thread™:
- Stainless steel inserts compensate for pitch errors and worn threads
- Compatible with aluminum, steel, cast iron, and plastic
- Threads often stronger than original parent material
- Used across auto repair, motorsports, small engine service, fleet maintenance & more!
For the shop, the bay, or the track—CTA Tools’ Pro-Thread™ and Power-Coil™ lines are your go-to for reliable thread repair. Now with more spark plug coverage than ever.