yes, looking for the brand that Toyota uses. also, what type: ceramic, semi-metallic, etc?The 03' has the bigger caliper, so there should just be one Toyota part number that you can get. I'm not sure if you're asking what brand Toyota uses, but it only has a Toyota number on it you can get from the parts counter. There is however a TRD front brake pad option you can order from trdparts4u.com or ebay or elsewhere that is a carbon/kevlar pad. There is also a Big Brake upgrade kit ($2500+) that had different lightweigt TRD calipers, and slotted rotors. If you want aftermarket, I would recommend Akebono, Raybestos or EBC...but Toyota makes a good long lasting pad. You can do a brake search on the Tundra forum, and there is some great information for your reference. Good luck!