Dieselfool

I found a part number cross reference to the rubber diaphram, but was unable to find a part number in any searches or calls I've made for the cap itself or the reservoir.. Part numbers I see on the diaphragm: 2228136,290935. BW(in a diamond) I'm assuming bendix westinghouse Number stamped on bottom of reservoir: T-290910 Cap reads: "WARNING, use only DOT3 brake fluid from a sealed container, clean filler cap before removing" nothing else. I need a replacement cap, or an option to replace the whole unit. Its on a 1980 Mack CF686

So what happened?

After quite a while researching, calling dozens of people and places I was able to find the parts I needed to fix the truck. I was able to have my rotors inspected and machined by the local machine shop, but I reached out to CRW truck parts in Jessup MD, with measurements and they gave me a part number for the rotors in the instance I needed to purchase new ones. I ordered reman calipers from Haldex in Marion NC. it took months, and they lost one in shipping. So I had to send my cores to be rebuilt. Part Numbers. Rotors: Gunnite R3064x Loaded Calipers: Haldex RH1002LX (fit both driver and passenger) with pads and hardware. Wheel seal: Stemco Voyager 383-0164 Inner bearing and race set: Timken SET423 (bearing 6461A, race 6420) Outter bearing and race set: Timken SET424 (bearing 555-S, race 552A) Hub Cap: Stemco 343-4249