Sonnax 77980-01K Wiring Harness Connector Bracket for 4L60E 4L65E 4L70E Transmissions

The Sonnax 77980-01K wiring harness connector bracket is a cost-effective solution designed to repair a common failure point in GM 4L60-E, 4L65-E, and 4L70-E automatic transmissions. This bracket secures the internal wiring harness connector even when the factory plastic retention tabs are broken.

Common Problem Solved:

In these GM transmissions, it is common for one or more of the three plastic retention tabs on the wiring harness case pass-through connector to break during service or normal use. When these tabs fail, the connector can be pushed into the transmission case when connecting the external harness, requiring expensive replacement of the entire wiring harness.

Key Features:

• Retains internal harness connector securely even with broken retention tabs
• Mounts from inside the transmission pan using existing hardware
• Eliminates the need for costly wiring harness replacement
• Designed specifically for 4L60-E, 4L65-E, and 4L70-E transmissions (1993+)
• Compatible with late-style gray connectors
• OEM alternative part number: S74444-1

This bracket provides a permanent fix that saves both labor time and the expense of replacing the complete wiring harness assembly, making it an essential component for transmission rebuilds and repairs.