UL Diesel Engine

A UL Listed Diesel Engine is a diesel-powered internal combustion engine that has been tested and certified by Underwriters Laboratories (UL) for use in fire protection applications—primarily fire pump systems. The UL Listing indicates that the engine meets stringent safety, performance, and reliability criteria outlined in UL 1247 and complies with relevant fire protection standards, most notably NFPA 20. This certification assures end-users, engineers, contractors, and inspectors that the product can perform under the rigorous demands of emergency fire service.