Bully Dog 2017-21 Cummins X15 HP Turbo + Actuator 56153 OEM: 5459711
$6,000.00 USD
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Bully Dog 2017-21 Cummins X15 HP Turbo + Actuator 56153 OEM: 5459711
$6,000.00 USD
Product Details
The Bully Dog 56153 is a Stage 1 performance VGT (Variable Geometry Turbo) specifically engineered for the Cummins X15 engine. It is designed as a direct-bolt-on replacement for trucks equipped with the "High Horsepower" factory configuration.
Vehicle & Engine Compatibility
This unit is compatible with Class 8 heavy-duty trucks, RVs, and farm equipment powered by the following engine specs:
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Engine Model: Cummins X15 (specifically CM2350 and CM2450 control systems).
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Model Years: 2017–2021 (Some listings extend compatibility to 2018–2022 depending on the chassis).
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Power Rating: Optimized for "High HP" variants, typically those rated between 525 HP and 600 HP from the factory.
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Note on Low HP: If your X15 is the "Low HP" version (under 500 HP), you would typically need the 56152 model instead.
OEM Cross-Reference Numbers
The 56153 replaces several factory Cummins part numbers. If your current turbo matches any of these, this is the correct upgrade:
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Primary OEM: 5459711
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Other Cross-Refs: 5327132, 5350586, 5351565, 5358483, 5358484, 5358485, 5454982, 5454983, 5454984, 5458937.
Key Features of the 56153
Unlike a standard remanufactured unit, this is an all-new turbocharger that includes a pre-calibrated actuator.
| Feature | Specification / Benefit |
| Compressor Wheel | 66.5mm Billet Aluminum (7-blade extended tip) |
| Actuator | Electronic, pre-calibrated (no laptop calibration required) |
| Performance Gain | Typically adds 20–50 HP and up to 7 PSI over stock |
| Efficiency | Reduced turbo lag and lower Exhaust Gas Temperatures (EGTs) |
| Installation | Direct bolt-on; includes gaskets; re-uses factory speed sensor |
Tech Tip: Because this turbo moves more air than the stock unit, it is highly recommended to pair it with a Bully Dog Heavy Duty Gauge Tuner (HDGT) to maximize fuel economy and power gains.
Care & Maintenance
To maintain the beauty and integrity of your purchase, we recommend treating it with care. Simple maintenance practices, such as gentle washing and proper storage, can effectively preserve the longevity of your favorites. We encourage you to refer to the care instructions included with each item, designed to help you keep your purchase in top condition.
Size & Fit
Our products are crafted to fit true to size, ensuring that you can confidently select your usual size with ease. Whether you’re looking for a relaxed or tailored fit, our designs are made to complement your unique shape and style.
