B3.3 (Tier 3)

Available for: Off-Highway, Construction, Underground Mining

Overview

B3.3 (Tier 3)The Cummins B3.3 engine brings toughness and reliability to every piece of equipment it powers, from skid steers to telehandlers, forklifts to road compaction, and compressors to ground support equipment the B3.3 meets all your equipment needs.  Its in-line 4-cylinder design has a compact footprint for easy installation.  With ratings from 60 hp (45 kW) to 85 hp (63 kW) Cummins in-cylinder solution meets Tier 3 and Stage IIIA emissions or Tier 4 Interim emissions below 75 hp (56 kW) 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 is covered by Cummins three-step warranty, one of the most comprehensive and simplest plans in the industry.

Specifications

With every start on every piece of equipment, Cummins B3.3 is setting records for dependable performance.  Its simple compact design makes itone 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.

Specifications.
Advertised Horsepower  60-85 hp  45-63  kW
Peak Torque 158-224 lb-ft 214-304N•m
Number of Cylinders   
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  606 lb  275 kg 

Engine Finder Specifications

Markets
Certification Level Tier 3 / Stage IIIA
Power 60 - 85 hp / 45 - 63 kW
Torque 158 - 224 lb-ft / 214 - 304 N•m

Ratings

Engine Model  Advertised hp @ rpm  Peak hp (kW) @ rpm  Peak Torque lb-ft @ rpm  Aspiration 
B3.3-85  85 (63) @ 2600  85 (63) @ 2600  224 (304) @ 1600  Turbocharged 
B3.3-80  80 (60) @ 2200  80 (60) @ 2200  224 (304) @ 1600  Turbocharged 
B3.3-75  75 (56) @ 2600  75 (56) @ 2600  224 (304) @ 1600  Turbocharged 
B3.3-74  74 (55) @ 2600  74 (55) @ 2600  181 (245) @ 1600  Turbocharged 
B3.3-65  65 (48) @ 2600  65 (48) @ 2600  158 (214) @ 1600  Naturally Aspirated 
B3.3-60  60 (45) @ 2200  60 (45) @ 2200  158 (214) @ 1600  Naturally Aspirated 
All ratings are intermittent unless otherwise noted.  Additional ratings may be available.  Check with your Cummins distributor or dealer.

Features

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

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.