MAXXFORCE 11 / 13 Big Bore

MAXXFORCE BIG BORE 11 / 13

To succeed in a competitive business, you need an engine and an organization behind it that are always performing and working for you. Navistar’s MaxxForce® Big Bore engines have revolutionized how the world looks at Class 8 commercial diesels. Designed specifically for International® brand heavy vehicles, with a combination of technologically advanced materials and components, these engines deliver outstanding fuel economy, excellent power characteristics, and exceptionally smooth and quiet ride, and high strength without added weight.

MAXXFORCE 11 / 330-390 HP 1,250-1,450 lb. Torque

MaxxForce® Big Bore engines deliver outstanding fuel economy, excellent power characteristics, and exceptionally smooth and quiet ride, and high strength without added weight.

MAXXFORCE 11 Engine Specs

Engine Type Diesel, 4-Cycle
Configuration Inline 6-Cylinder
Displacement 10.5L (641 cu. in.)
Bore / Stroke    4.72 in. & 6.10 in. (12 cm & 15.5 cm)
Comp. Ratio 16.5:1

Click Here to Download the MAXXFORCE 11 Brochure

MAXXFORCE 13 / 410-475 HP 1,450-1,700 lb. Torque

MaxxForce® Big Bore engines deliver outstanding fuel economy, excellent power characteristics, and exceptionally smooth and quiet ride, and high strength without added weight.

MAXXFORCE 13 Engine Specs

Engine Type Diesel, 4-Cycle
Configuration Inline 6-Cylinder
Displacement 12.4L (758 cu. in.)
Bore / Stroke     4.96 in. & 6.54 in. (12.6 cm & 16.6 cm)
Comp. Ratio 16.5:1

Click Here to Download the MAXXFORCE 13 Brochure

TOUGH, RELIABLE AND READY TO TAKE ON ANYTHING.

EPA compliant with MaxxForce Advanced EGR, the only no-hassle emissions solution for 2010 standards. A Compacted Graphite Iron cylinder block is 40% stiffer with 75% higher tensile strength, and 200% greater fatigue resistance than iron used in other Class 8 diesel engines. Low vibration levels prolong the life of the engine by protecting it from ordinary wear and tear. Fuel system combined with twin series turbo chargers, delivers peak torque at a lower RPM, which allows for earlier upshifts when accelerating and fewer downshifts when climbing hills. Internal testing has shown a 2.4% fuel efficiency advantage over the leading 15L engine. Over 500 lbs lighter than the nearest 15L engine with similar power output. Peak torque is achieved at 1000 RPM (just over idle) and sustains at higher RPMs for a more responsive off-the-line driving experience.