sevencow M11 x 1.5 Head Bolt Thread Repair Kit — 33mm Inserts, Complete Tool Set for Toyota Honda Cadillac

sevencow M11 x 1.5 Head Bolt Thread Repair Kit is a complete repair set designed to restore damaged M11x1.5 head bolt threads in import and domestic engines quickly and reliably.

If a head bolt hole has stripped threads, this kit provides the tools and replacement bolt inserts needed to rebuild the thread so the head bolt can be torqued to specification again. The set is built around 33mm long thread inserts for stronger engagement, and includes every specialty tool required for cutting, counterboring, and installing the new inserts. It fits many common engine makes and replaces part number 35119S, making it a practical repair option for mechanics and DIYers who need to salvage a cylinder head or block without expensive machining or replacement parts.

Which engines and applications does this repair kit serve?

This kit covers a broad range of import and domestic engines that use M11 x 1.5 head bolt threads. It lists compatibility with Toyota, Honda, Cadillac, Nissan, Scion, Isuzu, Hyundai, Kia and many other vehicles that accept the M11 x 1.5 specification. Always cross-check your vehicle’s bolt size before ordering.

• M11 x 1.5 metric thread specification used by many engines
• Commonly fits cylinder head or block head bolt locations
• Replaces OEM reference 35119S for quick part matching
• Suitable for both import and domestic repair situations

How does the kit restore stripped head bolt threads?

The kit restores threads by removing the damaged material, counterboring to the correct depth, and installing a hardened insert that provides new internal threads. Its longer 33mm inserts increase thread engagement area so replacement bolts seat deeper and hold torque better. Installation tools in the kit let you perform the repair without needing specialized shop equipment.

• Drill included to remove damaged thread material cleanly
• Counterbore tool prepares the bolt seat for proper insert depth
• Install driver and hex wrench secure inserts without cross-threading
• Includes 12 replacement bolts for immediate reassembly

What tools and parts are included in the package?

The kit arrives as a ready-to-use set containing the drilling and installation hardware plus replacement bolts. That means you won’t need to buy extra specialty tools to complete a standard M11 x 1.5 head bolt repair. A clear parts list helps you inventory components before beginning the job.

• 1 drill bit sized for M11 x 1.5 thread removal
• 1 counterbore to set insert seating depth accurately
• 1 install driver and 1 hex wrench for secure insert fitting
• 12 M11 x 1.5 replacement bolts packaged in the kit

How durable and reliable are the replacement threads?

The kit’s inserts are designed to be longer than many standard repair options, which boosts tensile engagement and improves clamping reliability under torque. While no repair can change the base material properties of a cylinder head, a properly installed insert restores usable threads and allows the head bolt to be tightened to engine specifications. Use correct torque and follow manufacturer reassembly steps for best results.

• 33mm long inserts offer extended thread engagement
• Hardened insert material resists wear under repeated service
• Designed to accept OEM torque values when installed correctly
• Kit tools minimize risk of misalignment during install

Who is this for: The sevencow M11 x 1.5 Head Bolt Thread Repair Kit is intended for professional mechanics, mobile repair technicians, and experienced DIYers who work on engines that use M11 x 1.5 head bolts. It’s a cost-effective solution when a stripped head bolt hole would otherwise require a replacement head or expensive machining. If you need to restore secure bolt threads quickly and prefer a complete, tool-inclusive repair package, this kit is a practical addition to your workshop inventory.