• PDI Big Boss Dual Oil Cooler for Cummins X15 and ISX15 engines. Reduce oil temps, improve reliability, and protect your engine.
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PDI | Performance Diesel Inc.

PDI Big Boss Dual Oil Cooler – Cummins X15 & ISX15 Performance Upgrade

PDI Big Boss Dual Oil Cooler – Cummins X15 & ISX15 Performance Upgrade

$4,100.00
$4,100.00
Sale Sold out

PDI Big Boss Dual Oil Cooler – Cummins X15 & ISX15

The PDI Big Boss Dual Oil Cooler is a premium cooling system upgrade engineered for Cummins ISX15 and X15 engines. Designed to significantly improve engine oil cooling capacity, this performance oil cooler helps maintain lower operating temperatures, reduce thermal stress, and improve engine durability under demanding heavy-duty applications.

Factory oil coolers can become overwhelmed during high-load operations, steep grades, extreme temperatures, and performance-tuned applications. The PDI Big Boss Dual Oil Cooler increases cooling efficiency by utilizing a dual-cooler design that provides substantially greater heat rejection than the factory system.

By lowering oil temperatures, the PDI Dual Oil Cooler helps extend oil life, improve lubrication performance, protect critical engine components, and support overall engine reliability for owner-operators and fleet operations.

Key Features

  • Performance dual oil cooler system for Cummins ISX15 and X15 engines
  • Increased oil cooling capacity over factory systems
  • Helps reduce engine oil temperatures under heavy loads
  • Improves lubrication system efficiency
  • Supports extended engine life and durability
  • Ideal for heavy-haul, mountainous terrain, and high-temperature operation
  • Designed for owner-operators and fleet applications
  • Made in the USA

Specifications

  • Brand: PDI Performance Diesel
  • Series: Big Boss™
  • Product Type: Dual Engine Oil Cooler System
  • Application: Cummins ISX15 / X15
  • Engine Compatibility: CM2250, CM2350, X15 Performance Series
  • Category: Cooling System Components
  • Made In: USA

Applications

Compatible with Cummins ISX15 and X15 powered Peterbilt, Kenworth, Freightliner, Western Star, Volvo, and International trucks operating in severe-duty applications.

Benefits of Lower Oil Temperatures

  • Improved oil viscosity stability
  • Reduced thermal breakdown of engine oil
  • Enhanced bearing protection
  • Improved turbocharger lubrication
  • Reduced engine wear
  • Extended oil service life
  • Better performance during heavy pulling conditions

Why Upgrade Your Oil Cooler?

Engine oil serves as both a lubricant and a cooling medium. Excessive oil temperatures can accelerate oil degradation, increase engine wear, and reduce overall engine efficiency. Upgrading to the PDI Big Boss Dual Oil Cooler helps maintain consistent operating temperatures, especially in demanding long-haul and heavy-haul applications.

🔥 Protect Your X15 Investment

Modern Cummins engines operate under extreme temperatures and loads. The PDI Big Boss Dual Oil Cooler helps keep oil temperatures under control, reducing stress on internal engine components and improving long-term reliability.

  • ✔ Increased oil cooling capacity
  • ✔ Improved engine protection
  • ✔ Better performance under load
  • ✔ Reduced thermal stress
  • ✔ Supports longer engine life
  • ✔ Made in the USA

Perfect for owner-operators, performance enthusiasts, and fleets looking to maximize engine longevity and uptime.

Why Choose PDI?

PDI Performance Diesel is one of the most trusted names in heavy-duty diesel performance. Their Big Boss product line is engineered to improve airflow, cooling efficiency, reliability, and overall engine performance for commercial trucking applications.

Fitment Notice

Verify engine compatibility before ordering. Contact us with your engine serial number (ESN) to confirm fitment.

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