It all starts with the right engine

Whether diesel, propane, gas or electric, long-range trips or short local drives, we have the power to meet your needs today and are pioneering the engines of tomorrow. With an attention to detail and focus on your fleet, we keep you on the road and moving forward.

Which fuel is right for your fleet?


  • Diesel

    Most commonly selected fuel choice

    Proven reputation for durability

    Improved mileage

    Cleaner formula than prior years

    Robust infrastructure already in place

    Technicians with deep knowledge readily available

    Strong residual value


  • Propane

    Available fuel subsidies

    More stable fuel pricing

    Cleaner burning than diesel

    Better startup and fewer complexities in cold weather

    Higher acquisition costs, often offset by subsidies or incentives

    Easier and less costly to maintain

    No idling restrictions

    Idling less detrimental to the vehicle

    Quieter engine

    No aftertreatment required

    90% domestic fuel


  • Gasoline

    Technicians with deep knowledge, readily available

    Better startup and fewer complexities in cold weather

    Quieter engine

    Idling is less detrimental to the vehicle

    No aftertreatment required

    Lowest acquisition cost

    Most districts already running gasoline buses (Type A)

    Easier and less costly to maintain


  • Electric

    Zero emissions

    Quiet operation

    Lower operating cost

    Lower maintenance costs

    Flexibility to charge during off-peak hours

    Enhanced safety and efficiency features

    Fewer parts required

    Grants and incentives available

    Learn More

HIGH-PERFORMANCE VERSATILITY. THAT’S THE POWER OF CHOICE.

No matter which engine you choose to suit your needs, rock-solid durability always comes standard.

Cummins B6.7

SPECIFICATIONS

  • Engine Type
    Diesel, 4-Cycle

  • Configuration
    Inline, 6-Cylinder

  • Displacement
    409 cu. in. (6.7L)

  • Bore and Stroke
    4.21 x 4.88 in

  • Aspiration
    Variable Geometry Turbocharger

  • Combustion System
    Direct Injection

  • Engine Lubrication
    15L

  • Total Engine Weight (Dry)
    1,150 lbs.

  • Horsepower
    200-260 hp

  • Torque
    520-660 lb.-ft.

HIGH-PERFORMANCE VERSATILITY. THAT’S THE POWER OF CHOICE.

No matter which engine you choose to suit your needs, rock-solid durability always comes standard.

PSI 8.8L Propane

SPECIFICATIONS

  • Cylinders
    V8

  • Induction System
    Naturally Aspirated

  • Combustion System
    Spark-ignited

  • Displacement
    535 cid (8.767 L)

  • Compression Ratio
    10.1:1

  • Emissions Certification
    US EPA & CARB HD-SI

  • Engine Oil Capacity (with filter)
    7.5 qts (7.10 L)

  • Fuel Type
    Propane

  • Bore & Stroke
    4.35 in x 4.50 in (110.5 mm x 114.3 mm)

  • Rated Power
    270 hp (201 kw)

  • Rated Torque
    565 lb.-ft. (766 nm)

  • Cooling System
    Water-cooled

  • Engine Coolant Capacity
    16 qts

  • Engine Oil Capacity
    7.0 qts (6.62 L)

  • Direction of Rotation
    Clockwise From Front

  • Dry Weight
    748 lb. (339 kg)

HIGH-PERFORMANCE VERSATILITY. THAT’S THE POWER OF CHOICE.

No matter which engine you choose to suit your needs, rock-solid durability always comes standard.

PSI 8.8L Gasoline

SPECIFICATIONS

  • Cylinders
    V8

  • Induction System
    Naturally Aspirated

  • Combustion System
    Spark-ignited

  • Displacement
    535 cid (8.767 L)

  • Compression Ratio
    9.1:1

  • Engine Oil Capacity
    7.0 qts (6.62 L)

  • Direction of Rotation
    Clockwise From Front

  • Dry Weight
    748 lb. (339 kg)

  • Bore & Stroke
    4.35 in x 4.50 in (110.5 mm x 114.3 mm)

  • Rated Power
    265 hp (197.6 kw)

  • Rated Torque
    548 lb.-ft. (743 nm)

  • Cooling System
    Water-cooled

  • Engine Coolant Capacity
    16 qts

  • Engine Oil Capacity (with filter)
    7.5 qts (7.10 L)

  • Fuel Type
    Gasoline

HIGH-PERFORMANCE VERSATILITY. THAT’S THE POWER OF CHOICE.

No matter which engine you choose to suit your needs, rock-solid durability always comes standard. Available exclusively on RE Series models, the Cummins® L9 is an inline-6, diesel workhorse.  LEARN MORE

Cummins L9™

SPECIFICATIONS

  • Cylinders
    Inline 6

  • Fuel Type
    Diesel

  • Combustion System
    Direct Injection

  • Horsepower
    300 (max)

  • Torque
    860 lb-ft. (max)

  • Bore & Stroke
    4.49" 5.69"

  • Engine Lubrication
    15L

  • Rated Power
    270 hp (201 kw)

  • Dry Weight
    1,695 lbs.

  • Displacement
    5.43 cu. in. (8.9L)

  • Aspiration
    Variable Geometry Turbocharger

Put the best up against the rest.

See how IC Bus engine offerings and warranties compare to Blue Bird and Thomas.

Learn More

Your buses belong on the road. Our dealer network ensures it.

Maximum uptime from quality construction, and maximum efficiency for maintenance and repair. Together, they ensure better life-cycle value and an overall lower cost of ownership. Fulfill the plans for your fleet from the industry’s most comprehensive dealer network. And with eight parts distribution centers supplying more than 1,000 service locations in North America, count on maximum uptime and better operational control.