Cummins has been powering the fire service since 1937. The 2024 X12 engine was designed to serve the fire & emergency market, with a focus on improved reliability and better performance, while meeting more stringent EPA Greenhouse Gas standards. We’ve been able to optimize the existing technology we are experienced in, without the need for additional emissions equipment.

The X12 keeps the same industry leading power to weight ratio as the lightest heavy-duty engine on the market. It also retains the industry leading 1500-hour or 18-month oil and filter change intervals. Additionally, the optional air compressor resonator provides reduced noise inside and outside the cab.

Features & Benefits

Support

• Cummins on Every Corner – Over 3,700 authorized locations across North America to support parts and service needs. 
• Peace of Mind — Base warranty backed by Cummins for a full 5 years/100,000 miles, whichever comes first. 
• Cummins Guidanz™ — This app allows you to read check engine lights and share via email with your service provider. 
• Longer Optional Extended Coverage — Unmatched full-engine coverage options of up to eight years are available, for peace of mind and predictable maintenance costs.