Caterpillar has delivered cutting-edge products of outstanding reliability for more than 80 years. Comprehensive quality assurance programs at the manufacturing sites and the integration of the sites into a global production network result in engines that meet the highest international standards. Within Caterpillar, every facility provides guaranteed product excellence, following the same superior standards of quality and technology that the company has consistently given to its customers.

Quality Management System

Caterpillar sites involved in the production of marine engines employ a quality management system according to ISO 9001:2000, certified either by Det Norske Veritas (DNV) or by Lloyd’s Register (LR) and renewed at regular intervals. In addition, every site is audited regularly by all the major Marine Classification Societies (MCS) with regard to “factory approval” and “works approval”.

Factory Approvals and Works Approvals
Factory approval is a prerequisite for all marine engine business and certifies the
process of engine assembly and testing. Works approval confirms that manufacturing, logistics and engine parts comply with MCS’ requirements. Works approval even permits Caterpillar to stamp engine parts and certificates on behalf of the MCS’s.

Type Approvals
MaK marine engines are available in various ratings tailored to customers’ needs. The engine ratings have been “type approved” by the MCS’s. Comprehensive analyses of engine temperatures, pressures and emissions taken at standard load increments, plus thorough inspection of the main engine components for visible wear guarantee reliability and longevity in engine operation.

All for the Customer 
Beyond formal certificates of factory approval, works approval and type approval, customers of Caterpillar Marine Power Systems also benefit from complete documentation of infrastructure, staff qualification, processes and logistics for each Caterpillar marine engine manufacturing site and every marine engine produced in them. The in-depth documentation of parts origin, engine assembly and testing procedures for every single MaK marine engine delivered gives credence to our claim: Excellence on Board!

Additional Information

Type Approvals and Works Approvals for MaK marine engines (PDF 104KB)


Certificates of MCS Works Approvals:
American Bureau of Shipping (ABS)
Bureau Veritas (BV)
Chinese Classification Society (CCS)
Det Norske Veritas (DNV)
Germanischer Lloyd (GL)
Korean Register of Shipping (KR)
Lloyd’s Register (LR)
Nippon Kaiji Kyokai (ClassNK)
Registro Italiano Navale (RINA)
Russian Maritime Register of Shipping (RS)