Product Description
Genuine GM 11589040 Torque Converter Bolt
Fits 1997–2013 LS-Based Engines | Compatible with 4L60, 4L65, 4L80, 6L80 & 6L90 Torque Converters
The Genuine GM 11589040 Torque Converter Bolt is the factory-correct fastener used to secure the torque converter to the flexplate on LS-based GM engines. Manufactured to exact GM OE specifications, this bolt provides the correct thread engagement, torque retention, and fitment for both factory and aftermarket torque converters. Ideal for 4L60E, 4L65E, 4L80E, 6L80, and 6L90 transmissions, these bolts ensure a secure and vibration-free connection. Available individually or in convenient 3-bolt or 6-bolt sets, and recommended to be replaced any time the torque converter is removed or reinstalled.
Key Features
- Genuine GM part number 11589040 – factory original torque converter bolt for LS applications
- Designed to fasten the torque converter securely to the flexplate on LS-based transmissions
- Features 15mm hex head with 8mm internal Allen for easy installation and removal
- Thread size: 10mm x 1.5 | Total underhead length: 22mm | Threaded length: 15mm
- Available individually, as a 3-bolt set, or a 6-bolt set depending on converter design
- Manufactured to GM OE standards for exact fit, high strength, and corrosion resistance
Specifications
- Head Type: 15mm Hex Head with 8mm Internal Hex (Allen)
- Thread Size: 10mm x 1.5
- Total Underhead Length: 22mm
- Threaded Length: 15mm
Key Fitments
- Fits most 1997–2013 GM LS-based V8 engines: 4.8L, 5.3L, 5.7L, 6.0L, and 6.2L
- Compatible with 4L60E, 4L65E, 4L80E, 6L80, and 6L90 automatic transmissions
- For use with stock-style GM torque converters on LS-based drivetrains
- Common in Silverado, Sierra, Camaro, Corvette, GTO, CTS-V, and performance swap applications
Note: It is recommended to replace torque converter bolts during installation or service to ensure proper torque retention and prevent loosening under high load.
