FUNCTION: When you upgrade your battery into a AGM battery, you will get lower than desired voltage with it as AGM batteries require higher voltages than lead-acid batteries to charge and your alternators don't put out enough. Under this situation, you will need this 12135037 multi-function diode provide enough power output to well fix the issue above
IMPORTANT NOTICE: If you get a battery light on dash after installing, please flip it 180° and light will be gone
OEM Manufacturer Part Number: Replaces OE 12135037 YL8T14A604AA
Package includes 4 pcs of 12135037 Multi-Function Diode