B3.3 for Agriculture (Tier 2)


B3.3 for Agriculture (Tier 2)The Cummins B3.3 engine brings toughness and reliability to every piece of equipment it powers, from tractors to irrigation pumps. Its in-line 4-cylinder design has a compact footprint for easy installation. Ratings range from 60-85 hp, with both naturally aspirated and turbocharged versions that deliver strong performance. Single-sided maintenance is just one of many standard features and options that let you customize your B3.3.

Getting the right combination to match your equipment, operating environment and workloads has never been easier. Cummins Advisor is ready to provide expert assistance with your installation process.

Every B3.3 engine comes with a base warranty.

Cummins B3.3 engines meet all current Tier 2/Stage II standards and will achieve Tier 3/Stage IIIA compliance with in-cylinder technology that maintains a compact, simple and cost-effective design solution and fits the exact same footprint as today.


With every start on every piece of equipment, Cummins B3.3 is setting records for dependable performance. Its simple compact design makes it one of the most reliable engines in Cummins entire lineup of off-highway engines. With or without turbocharging, it has a low heat rejection rate. Plus, the B3.3 is designed to meet lower noise regulations, with a deep, stiff crankcase, optimized rib arrangement and an isolated valve cover.

Advertised Horsepower 60-85 hp 45-63 kW
Peak Torque 158-215 lb-ft 214-292 N•m
Number of Cylinders 4
Oil System Capacity (NA) 8 U.S. qt 7.5 liters
Oil System Capacity (Turbo) 8.5 U.S. qt 8 liters
Length 27.7 in 703.4 mm
Width 22.8 in 580 mm
Height 31.7 in 804.9 mm
Wet Weight (NA) 531 lb 241 kg
Wet Weight (Turbo) 567 lb 257 kg

Engine Finder Specifications

Certification Level Tier 2 / Stage II
Power 60 - 85 hp / 45 - 63 kW
Torque 158 - 215 lb-ft / 214 - 292 N•m


Engine Model Advertised hp @ rpm Peak Torque lb-ft @ rpm Torque Rise Aspiration
B3.3-85 85 @ 2600 215 @ 1600 25% Turbocharged
B3.3-80 80 @ 2600 215 @ 1600 13% Turbocharged
B3.3-75 75 @ 2600 193 @ 1600 26% Turbocharged
B3.3-65 65 @ 2600 158 @ 1600 21% Naturally Aspirated
B3.3-60 60 @ 2600 158 @ 1600 10% Naturally Aspirated

All ratings are intermittent unless otherwise noted. Additional ratings may be available. Check with your Cummins distributor or dealer.


The B3.3 is built to last, with a cast-iron parent bore block designed for durability and reliability. Every element of the design adds value to the customer, including:

  • Direct injection for increased fuel efficiency, low heat rejection and quicker starts
  • A deep, stiff crankcase with structural ribs for lower noise and increased life
  • An isolated valve cover for reduced noise
  • Optional intake air heater for cold-weather starting
  • Low rotating inertia (30% less than industry average) for reduced vibration
  • Left- or right-side service options for easy maintenance
  • SAE "A" PTO mounting option with engine-mounted, gear-driven designs (Front-mounted crank PTO generates 100% torque for hydraulic applications)


Maintenance Intervals

Turbocharged B3.3 engines require an oil change at 350-hour/3-month intervals, while naturally aspirated models can go 500 hours or 6 months between oil changes.

For complete maintenance information, please consult your Owner's Manual or Operations and Maintenance Manual.

Brochures Available

Title Bulletin Number Request View  
Cummins Agriculture Brochure - Growing Together (English) - A4 Format 4087328 Request View  Download
Cummins Agriculture Brochure - Growing Together (German) - A4 Format 4087329 View  Download
Encompass Tri-Fold Mailer 3624570 Request View  Download