More information on PACCAR Engines and the PACCAR Engine Company can be found at http://www.paccarengines.com.
PACCAR MX Heavy Duty Engine
The PACCAR MX engine brings a new level of innovation through industry-leading quality, exceptional reliability and proven performance.
For more than 50 years, PACCAR has delivered over 1 million engines globally providing innovative solutions and an unwavering commitment to superior customer service and support.
Quality-
PACCAR’s core commitment to quality is evident by the attention to detail through the integration of systems and the use of the highest quality materials available that results in long-term customer value.
Low Cost of Operation-
With a B10 design life, the PACCAR MX features innovative designs that contribute to reliability and durability and result in an overall low cost of ownership.
Performance-
The PACCAR MX combines maximum power with outstanding fuel effciency to optimize performance in virtually any application.
Fuel Efficiency-
Superior fuel economy is achieved using precise fuel management controlled by the PACCAR Electronic Control Module. The MX features low operational engine speeds with excellent torque characteristics, as well as individual injection pumps that produce over 36,000 psi injections and advanced dual valve controls, resulting in precise spray patterns. The outcome is an optimum combustion process with excellent fuel effciency.
Lightweight Components-
The MX is the only commercial diesel engine to use Compacted Graphite Iron (CGI) in both the cylinder block and head. CGI is lighter and stronger than traditional gray iron and offers weight sensitive users excellent horsepower-to weight ratio to optimize payload. The distinctive MX crankshaft reduces weight and increases power for quicker acceleration and smoother overall operation.
Reliability-
The integrated lubrication module of the MX combines filters, a thermostat and an oil cooler joined directly to the engine without external lines to maintain oil quality and extend service intervals. The MX features a fully encapsulated wiring harness mounted directly to the block that protects wiring from the elements and removes stress from connectors. This results in a dependable electrical system that is serviced in a non-invasive manner to keep trucks in operation.
Driveability-
The MX utilizes fractured cap technology in both the connecting rods and main bearing caps to provide high shearing strength that result in a wide horsepower range and longer torque and power curves for more efficient operation. A rear mounted gear train and a floating oil pan reduce engine vibrations and noise to provide drivers a quieter operating environment.
Powertrain Optimization-
The MX engine is designed to meet the demands of virtually any application. The MX is available with a wide range of horse power and torque options to deliver maximum performance at low engine speeds.
PACCAR PX-8 Engine
Optimized for use in Peterbilt’s Class 7 chassis, the 8.3 liter PX-8 is a robust performer with exceptional power and torque.
Peterbilt now offers a medium duty engine with 1,000 ft-lbs of torque, which translates to increased throttle response and acceleration for customers in the traditional class 7 markets, vocational, or specialty markets.
This premium six-cylinder engine is available with power ratings from 240 to 330 horsepower and torque from 660 to 1,000 foot-pounds.
The PX-8 engine offers heavy-duty engine features such as replaceable wet liners, roller followers, by-pass oil filtration, targeted piston cooling and a robust valve train.
It is the standard engine for both the Model 335 and Model 340. Two engine braking systems are offered for this engine. A variable geometry turbo provides standard engine braking up to 125 hp of retarding force, and an optional compression brake provides incremental braking horsepower.
PACCAR PX-6 Engine
The PACCAR PX-6 is an in-line 6 cylinder design with four valves per cylinder, a high pressure common rail fuel system and features the best power-to-weight ratio available in its class.
The engine provides more horsepower, torque, payload capacity and enhanced performance. Reliable, lightweight and trouble-free, the PX-6 is ideal for the typical Class 6 medium-duty truck owner.
These competitive advantages bring customers in Class 6 or weight-sensitive Class 7 applications such as tankers the power they need to get the job done with an engine that will provide years of dependable, virtually service-free operation.
Standard with the Model 330 and optional for the Model 335, the PX-6 is available with horsepower ratings from 200 to 325 and torque from 520 to 750 foot-pounds.
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