This module has the manufacturer number: CN459-60375 Suitable for: HP PageWide Pro 477 D3Q19A HP PageWide Pro 477 D3Q20B I looked in our system to see if I could find a product with your manufacturer number. A supplier would have offered this, but now this item is no longer sold. If not, please contact our customer service and we can look for a solution directly. LG

According to description: "Compatible products Pro X451". My research has shown that this one should fit: HP Duplex Module 6 Cot