GM Performance 11589040 Torque Converter Bolt M10x1.5x22 Transmission Flexplate Fastener

The GM Performance 11589040 is a genuine OEM torque converter bolt designed to securely fasten the torque converter to the flexplate on LS-based GM engines and a wide range of GM automatic transmissions. This factory-correct fastener ensures proper thread engagement, torque retention, and a vibration-free drivetrain connection.

Key Features:

• Genuine GM OEM Part – manufactured to exact factory specifications for reliable fit and function
• M10 x 1.5 x 22mm thread size for proper torque converter-to-flexplate clamping
• 15mm hex head with 8mm internal Allen drive for easy installation and removal
• Compatible with LS Gen III and Gen IV engines including 4.8L, 5.3L, 5.7L, 6.0L, and 6.2L displacements
• Suitable for use with 4L60E, 4L65E, 4L70E, 4L80E, 6L80, and 6L90 automatic transmissions
• Also applicable to GM 6.6L Duramax diesel applications
• Recommended for replacement any time the torque converter is removed or reinstalled
• Backed by GM's engineering standards and quality assurance

Part number 11589040 is the factory-original torque converter bolt for a broad range of GM LS and Duramax platforms. Whether performing a transmission rebuild, converter swap, or routine drivetrain service, using genuine GM hardware ensures the correct clamp load and long-term durability.