Gold

Hey all! Very new to this website, and am not much of a gear head, so go easy if i seem ignorant! I'm looking to replace the neck pickup in my V string American Deluxe Jazz bass. I've been advised to go for Seymour duncan but am struggling to find a website that will sell a singular pickup. Is this something I can find? Either way, does anyone know exactly what model i'll need for either the pair, or the singular neck pickup? Or have any advice for other brands for that matter. Many thanks, Oscar