The function tests are made for all units and also lifetime tests are made for each production batches Warning - Please be aware of our packaging; all of our products have its original Robur Bremse print on both the box and the package inside. Our brand name is also written on our products. Assembly - Our cylinder head is complete with gasket and valves and it is ready to assemble to the crankcase. We will reply any request within 24 hours during business working time. Robur Bremse Air Brake Compressors and Their Parts - YouTube.The item "Air Brake Compressor Cylinder Head WithPlate Kit for Caterpillar /C11/C13 /C15/C18" is in sale since Monday, October 15, 2018. This item is in the category "eBay Motors\Parts & Accessories\Commercial Truck Parts\Brakes & Brake Parts\Air Compressors". The seller is "robur-bremse" and is located in Richmond, Texas. This item can be shipped worldwide.