About Prior Diesel


Prior Diesel was established in 1980 as an extension to George Prior Engineering in Great Yarmouth who carried out repair work on vessels operating in the North Sea. During the 1980s and 1990s many offshore support vessels owned by Tidewater Marine whose HQ is in the U.S.A. were powered by Detroit Diesel 2 stroke engines. Prior Diesel carried out numerous engine overhauls and repairs during this period and from this was awarded a Detroit Diesel dealership to help support the growing business from this product.

The growth of the company continued and in 1991 Prior Diesel moved to a new purpose built industrial unit to meet the high demand of our specialist services with many other leading engine manufacturers wanting to have Prior Diesel as their extended arm for supporting their products in the market place. Today we represent Cummins Diesel, Scania, Volvo Penta, Caterpillar (OEM), Perkins, Iveco, John Deere and Deutz but supply a product range far beyond these.

With all these prestigious engine manufacturers falling under the Prior Diesel banner the Parts Department thrived and alongside the engine repairs built a strong relationship with UK and overseas clients in many sectors of industry supplying spares to all corners of the globe.

Prior Diesel’s wealth of knowledge and experience gained through servicing major clients in the North Sea for many years has led to the expansion of our offshore support department. The Prior Diesel name is very well known in the offshore industry for offering a fast response and reliable service that can be relied on to keep downtime to a minimum to maximise production. Providing labour only to completely refurbishing equipment or supplying new replacement products Prior Diesel has the solution to meet the customer demands.

Today Prior Diesel’s premises covers 2,800 m2 and consists of the original building plus two additional manufacturing units to cope with the demands of its services. Becoming part of the Suretank group in January 2015 will only help assist the growth with its already established global presence and market intelligence to promote the Prior Diesel products and services.



Suretank is the owner to Prior Diesel and a world-leading manufacturer of engineered Cargo Carrying Units (CCUs) and tanks for the Offshore Oil and Gas Industry.

Established in 1995 in Ireland to supply offshore chemical tanks to the North Sea, the company is a global supplier of offshore tanks and offshore containers and the largest manufacturer of DNV 2.7-1 certified products and the only company to produce ALL products to DNV standards.

With design and manufacturing facilities in Ireland, UK, Poland, USA, Brazil, Thailand and China with sales offices in USA, Norway and Brazil, Suretank is well placed to meet the needs of the oil and gas sector.

Suretank’s customer base includes most of the major service, rental, exploration and production companies in the offshore industry. Its units are found worldwide, including North Sea, West Africa, Gulf of Mexico, Brazil, Caspian Sea, Sakhalin, India, Australia, Middle East and the Far East.