Thread Repair Kit - Kent-Moore

The Kent-Moore J-42385-500 Thread Repair Kit offers a robust and reliable solution for repairing damaged cylinder head and main bearing cap mounting holes in specific 4.0L and 4.6L aluminum engine blocks. This professional-grade kit utilizes the Time-Sert method, a GM Powertrain recommended procedure that provides a high-quality, permanent thread repair superior to traditional coil-type inserts, particularly in critical aluminum applications.

Key Features

• GM Powertrain Recommended: Endorsed by GM Powertrain as the preferred method for repairing threads in aluminum engine components, ensuring professional-grade results and warranty compliance.
• Time-Sert Technology: Employs solid, flanged steel inserts that expand at the base upon installation, securely locking into the parent material for a durable, vibration-resistant repair.
• Engineered for Aluminum Blocks: Specifically designed to address the unique characteristics of rolled threads in softer aluminum blocks, providing a stronger and more reliable repair than alternative methods.
• Cost Recovery for Shops: Includes consumable inserts, allowing dealerships and repair facilities to recover costs as a repair order line item for both customer-paid and warranty work.
• High-Quality Repair: Facilitates consistent, high-quality threaded hole repairs on major engine components, contributing to customer satisfaction and reduced warranty expenses.

Applications

This Kent-Moore J-42385-500 kit is engineered for first-time thread repairs on 4.0L and 4.6L aluminum engine blocks, specifically targeting Cadillac Northstar engines from 1995 to 1999, which typically feature a single head bolt hole depth. It is essential for addressing stripped or damaged threads in cylinder head and main bearing cap mounting holes. This tool is designed to provide technicians with the ability to restore critical fastener integrity in these specific aluminum engine applications.

Specifications

• Cylinder Head Thread Repair Size: M11x1.5
• Main Bearing Cap Thread Repair Size: M10x1.5