ACDelco 12135037 Multi-Function Diode for GM Vehicles

The ACDelco 12135037 is a multi-function diode designed for underhood electrical applications in junction blocks and engine compartments to manage electrical circuits. This GM Genuine Parts component is designed, engineered, and tested to rigorous standards, representing the true OE parts installed during production or validated by General Motors for GM vehicles.

Key Features:

• Controls electrical current flow in the proper direction to protect vehicle electrical components
• Capable of delivering higher voltages to improve the charging process and extend battery life
• Engineered with premium heat-resistant materials to reliably endure extreme temperatures, high pressure, and continuous vibrations
• Simple installation with 180-degree rotation capability to resolve battery indicator light issues
• Genuine GM part that meets federal safety and quality standards

This multi-function diode is particularly useful when addressing voltage issues associated with AGM battery upgrades, ensuring efficient battery charging and optimal electrical system performance. This component is typically included with junction blocks and fuse/relay boxes. The diode also supersedes GM part number 12182137.