X12 (2018) For Emergency Vehicles

Power

455 - 500 hp 339.29 - 372.85 kW

Torque

1695 - 1700 lb-ft 2298.11 - 2304.89 N•m

Product Availability

North America, Africa Middle East, Latin America, Asia Pacific, Europe

Cummins X12 Engine

X12 Engine

Built to serve the fire service, the Cummins X12 provides the highest power-to-weight ratio of any heavy duty engine.

  • Up to 500 HP and 1700 lb-ft of torque 
  • 600 lbs less for flexible cab design 
  • Special emergency vehicle calibrations

Improvements to the compression braking provides 20% stronger braking for greater vehicle control. With over 100,000 engines in service around the world with over 1 billion miles of real-world experience, you can count on the Cummins X12. 
 

What's New for Fire/EV 2021?

Features & Benefits

Support.
  • Cummins on Every™ Corner – Over 3,500 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. Up to 8 years of optional full engine coverage, including injectors.

  • Cummins Guidanz™ and INLINE™ Mini – Read real time engine data and email fault information from your smart phone to speed up the repair process.

  • QuickServe™ Online Mobile – Provides complete parts and service information based on specific ESNs.

  • Connected Diagnostics™ – Wirelessly connects Cummins-powered emergency vehicles to product experts at Cummins for immediate diagnosis of an engine system fault.

  • Easier Maintenance – The compact design of the X12, together with easy service points for scheduled maintenance increases uptime.

  • Get the Latest – Need more information about the Cummins X12 engine or Cummins Onan generators? Visit our Fire and Emergency Engines page. You can also stay up to date with quarterly articles in the First Responder newsletter at firstresponder.cumminsnewsletters.com.

Specifications

NOTE: For all engines and options available, horsepower may be limited by the truck OEM

REPTO - Available - Torque limit of 466 lb-ft continuous, 516 lb-ft intermittently, gear drive ratio is 1.18:1, rotation is opposite of the crankshaft

FEPTO - Available - Torque limit up to 625 lb-ft

 

Configuration Inline 6
Displacement 720 CU IN 11.8 L
Lube Oil Capacity 42 QT 39.8 L
Biodiesel Compatibility Up to B20
Engine Braking Horsepower Up to 450 HP @ 2300 RPM
Idle Speed 600-800 RPM
Governed Speed 2000 RPM
Engine Weight (Dry) 2050 LB 930 KG
Aftertreatment Weight** 173-191 LB 78-87 KG

**Depending on configuration



To access our complete brochure library, click here.
Ratings
  Advertised HP (kW) @ RPM Peak Torque LB-FT (N•M) @ RPM
X12 500 500 (373) @ 1900 1695 (2298) @ 1000
X12 455 455 (339) @ 1900 1700 (2305) @ 1000
Maintenance
Maintenance Item Hours Months
Oil and Filter 1,000 12
Fuel Filter 30,000 6
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