Paccar PX-9

Tuning Details

The 8.9-liter PACCAR PX-9 engine has one of the highest power-to-weight ratios in its class, with heavy-duty features like replaceable wet liners, roller cam followers, bypass oil filtration and targeted piston-cooling. Available in both medium and heavy-duty configurations this engine delivers the durability and efficiency needed to lower operating expenses, reduce maintenance and increase productivity.

Before
380
HP
After
456
HP
Gain
+
76
HP
Note: Tuning outcomes may vary based on a variety of factors.
Mario High Performance Diesel

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You work hard for your money. We get it. That's why we provide ongoing customer support for all of our tunes. Use the calculator below to see how much you could save with a tune from Mario High Performance Diesel.
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