Brand: Knorr Brake Corp. Item: Heavy-duty brake valve block assembly module, suitable for hydraulic or pneumatic braking systems. Part No.: 807039/5 Serial No.: 10070020 BO Label location: Westminster, MD 21157, USA. Construction: Solid metal block body with multiple precision-machined threaded ports, mounting holes, and adjustment studs on each end. Details: Features Knorr-Bremse inspection sticker, round warranty seal stating warranty void if seal is broken, and wire-sealed adjustment hardware indicating factory setup.
eBay