After many simulations
It is not OEM but fits and functions identically for a fraction of the price
and HID bulb capsules available to create a product that just works and works well
It is estimated that 80% of these bulbs sold through outlets such as eBay or Amazon are fakes
These LED bulbs will replace 6411
T5/74: GTR 3-LED (White) GMC After many simulationsGTR Lighting T5 37 74 1 LED Bulbs: These LED bulbs: will replace any T5 bulb, commonly found in gauges and console applications. Here is the bulb cross reference guide for this product: #73, 74, 286, 17, 18, 37, 70, 79, 85, 86, & 2721 This package: has 2 LED bulbs and they each feature 1 LED. These bulbs are perfect for almost any application where they fit.