QSB4.5 Cylinder Head Assy For Cummins diesel engine parts. QSB4.5 Cylinder Head Assy. Note: Please Send more information like model number, serial number, engine number, pictures, size. Pictures in different views For your old Part. We wil confirm much quicker. 1 PCS Cylinder Head Assy. We will be happy to assist you and resolve any concerns you may have. Orders are processed from Monday to Saturday, excluding legal holidays. The item must also have the attached tags and wrap intact. Otherwise, the sale is considered final. We will be happy to work with you in a friendly and cordial manner to resolve any problems you may have. Please make sure your address and contact information are correct. All original manufactories name, Part No. Logo, Package and Description for reference purproses only.