Part number HB 8514, HUB We have more than 1000 AMBAC and related diesel parts for sale! Check it out at our AMBAC Diesel Parts store categories! AMBAC has been a global supplier of diesel fuel systems and related components since 1910, making one of the oldest and most experienced companies in our industry. Ambac primarily supply diesel fuel systems, electric governors, and advanced components. Our products are used in transportation, agriculture, aviation, defense, power generation, and more AMBAC has a long history providing systems for the US and Allied Defense organizations. Today, it provides fuel systems for tracked and wheeled vehicles as well as engine controls for power generation systems. FREE Shipping!!!