

⚡ Power up your GM ride with genuine precision!
The GM Genuine Parts 12135037 Multi-Function Diode is a compact, precision-engineered component designed exclusively for GM vehicles. It optimizes alternator performance and battery charging, especially for AGM batteries in older models, ensuring reliable electrical system efficiency. Tested and warranted by GM, this diode guarantees OEM-level quality and a perfect fit for seamless installation.








| ASIN | B08WHLPQR3 |
| Best Sellers Rank | #76,849 in Automotive ( See Top 100 in Automotive ) #4 in Automotive Alternator & Generator Diodes |
| Brand | GM GENUINE PARTS |
| Customer Reviews | 4.7 4.7 out of 5 stars (308) |
| Date First Available | 28 November 2021 |
| Exterior | Machined |
| Item Weight | 10 g |
| Item model number | 12135037 |
| Manufacturer | GM Genuine Parts |
| Manufacturer Part Number | 12135037 |
| Model | GM Original Equipment |
| Product Dimensions | 3.3 x 2.79 x 0.76 cm; 10 g |
B**N
Functional diode
M**.
Performs as intended
G**N
Gets the most out of the Gen 4 4Runner alt.
J**S
works well
C**D
Diode for alternator priming
Trustpilot
Hace 2 meses
Hace 1 día