Specifications

17
FEATURES AND BENEFITS
B SERIES SP WINDROWER
ENGINE AND ACCESSORIES
Engine
Engines
The new Challenger windrower engines meet
all Tier II emissions standards.
♦ The SP185B engine is a 185 hp, 5.9 liter,
turbocharged and intercooled Cummins
QSB 185A engine.
♦ The SP115B engine is a 115 hp, 4.41 liter,
Direct Injection Turbocharged Caterpillar
3054E engine.
♦ The SP85B engine is a 85 hp, 4.41 liter,
Direct Injection Naturally Aspirated Caterpil-
lar 3054C engine.
The SP115B and SP185B engines use an elec-
tronic fuel injection system, which is more pre-
cise and responsive. The engine torque is bet-
ter than on previous mechanical versions.
Intercooler
Intercooler
(SP185B Only)
The engine uses an air-to-air intercooler. The
turbocharged compressed air is cooled as it
flows through the intercooler. Cooling the
charged air allows it to be compressed more
than hot air. More compressed air can then be
pushed into the intake manifold, and from there
into the cylinders. The cooled, compressed air
mixes more thoroughly with the injected fuel, so
the fuel is burned more completely, giving more
power with less emissions.