This is a replacement cover for the front of your AEM 52mm gauge. The gauge cover unscrews and the new cover screws on, holding the plastic lens in place. You can select different materials and colors. Please look at the image that shows how to measure your gauge's thread size. Please check to confirm the threads on your gauge are also 2.24 inches in diameter before placing an order. These items are hand-made for each order so returns are not possible if you order the wrong item.
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