Put the best up against the rest.

When it comes to service and critical components, IC Bus delivers.

Purpose-built for the school bus industry, IC Bus delivers an an advantageous warranty, for the hardest-working parts, at more convenient locations than anyone else.

Tabs

Warranty Comparison: IC Bus vs. Blue Bird


Coverage
Engine and Fuel System
Transmission
Towing

Serviced by Dealers
Gasoline Engine
Gasoline Fuel System
Propane Engine
Propane Fuel System

IC Bus
5yrs
Allison/7yrs
Unlimited

IC Bus
YES
YES
YES
YES

BlueBird
5yrs
Ford/5yrs
Varies by Component

BlueBird
NO
NO
NO
NO

Advantage
-
IC Bus
IC Bus

Advantage
IC Bus
IC Bus
IC Bus
IC Bus

Diesel Engine Comparison: IC Bus® CE Series vs. Thomas


 
Cylinders
Experience
Production
Engineering

Cummins® B6.7 Engine
Inline-6
30+ years
12 million annually
American design

Detroit DD5 Engine
Inline-4
3 years in European markets
60,000 annually
Derived from European design
Cummins B6.7 engines are serviced at over 3,500 locations—the largest service network in the industry.

Propane Engine Comparison


 
Engine
Horsepower @ 1000rpm
Horsepower @ 2000rpm
Torque @ 1000rpm
Torque @ 2000rpm

IC Bus
PSI 8.8L V8
103
215
540 lb-ft
564 lb-ft

Blue Bird
Ford 6.8L V10
71 hp
160 hp
375 lb-ft
564 lb-ft

Thomas
PI Pithon 8L V8
71 hp
162 hp
375 lb-ft
427 lb-ft
Purpose-built, with a low engine speed design, the PSI 8.8L drives like a diesel, with no compromise on engine power and reliability.

Gasoline Engine Comparison: IC Bus® CE Series vs. Blue Bird


 
Engine
Displacement
Rated horsepower
@1,000 RPM
@2000 RPM
Rated torque
@1,000 RPM
@2000 RPM
Bore/stroke
Compression ratio

IC Bus
PSI 8.8L V-8
8.8L
265 HP @ 2,600
95
202
548 ft-lb @ 1,800
500 ft-lb
530 ft-lb
4.35”x4.50”
17.31

Blue Bird
Ford 6.8L V-10
6.8L
320 HP @ 3,900
N/A
N/A
460 ft-lb @ 3,000
N/A
N/A
N/A
N/A
Designed for stop-and-start operation, the PSI 8.8L V-8 gasoline delivers similar power and performance to diesel, allowing for immediate acceleration after stops and greater hill climbing ability.

Transmission Comparison: Allison 2000 Series™ vs. Ford (gasoline and propane applications)


 
Allison shafts
Allison C1 clutch

Allison C5 clutch

Allison warranty

 Allison 2000 Series™
Shorter and sturdier for more strength and reliability than Ford.
8.3% more clutch material than Ford means better holding force and more power to the drive wheels
44.2% more clutch material than Ford allows you to hold first gear longer, in the toughest operations
7-years, unlimited miles, on every transmission we place