Bring legendary Yellow Iron power to your fleet with the most comprehensive Caterpillar C15 Engine Pack available for American Truck Simulator.

Featuring three authentic C15 engine configurations, realistic torque delivery, custom transmission options, and support for 28 popular trucks, this pack delivers the raw diesel experience professional drivers expect.

Whether you're hauling coast-to-coast freight, climbing steep mountain grades, or moving oversized loads, there's a C15 configuration built for the job.

🔥 INCLUDED ENGINES

CAT C15 500HP

✔ Fuel-efficient long-haul setup
✔ Smooth power delivery
✔ Ideal for everyday freight operations

CAT C15 600HP

✔ Balanced performance and efficiency
✔ Excellent for heavy cargo routes
✔ Strong pulling power without excessive fuel use

CAT C15 700HP

✔ Maximum performance configuration
✔ Massive 3,250 lb-ft torque output
✔ Designed for heavy haul and extreme loads

⚙️ 6 TRANSMISSIONS PER TRUCK

Classic Series

Authentic Eaton Fuller gearing for traditional trucking.

• Eaton Fuller 10-Speed Economy (3.36 Differential)
• Eaton Fuller 13-Speed Heavy (3.73 Differential)
• Eaton Fuller 18-Speed Super Heavy

Swap Series

Specially tuned for Caterpillar C15 performance.

• 10-Speed Swap Economy (2.85 Differential / 0.22s Shift Time)
• 13-Speed Swap Heavy (3.36 Differential / 0.28s Shift Time)
• 18-Speed Swap Super Heavy (3.73 Differential / 0.35s Shift Time)

🚚 SUPPORTED TRUCKS

Supports 28 trucks including:

✔ Kenworth W900
✔ Kenworth T680
✔ Kenworth T800

✔ Peterbilt 389
✔ Peterbilt 388
✔ Peterbilt 579

✔ Freightliner Cascadia
✔ Freightliner Classic

✔ International LT
✔ International HX

✔ Mack Anthem
✔ Mack Pinnacle

✔ Western Star 49X
✔ Western Star 57X
✔ Western Star 5700XE

✔ Volvo VNL
✔ Volvo VNL 2018
✔ Volvo VNL 2025 DLC

And many more.

✅ FEATURES

✔ Realistic Caterpillar C15 performance
✔ Authentic torque curves
✔ Real RPM ranges
✔ Powerful diesel exhaust sound
✔ Multiple transmission choices
✔ Heavy haul ready
✔ Compatible with stock trucks
✔ Built on Beast Mod Architecture
✔ ATS 1.59+ Compatible

📥 INSTALLATION GUIDE

How to Install the Mod (ATS)

• Download the mod file (.scs)
• Move the file to:

📂 Documents\American Truck Simulator\mod

• Launch American Truck Simulator
• Open Mod Manager
• Enable the mod
• Move it to the top of your load order (recommended)
• Click Confirm Changes
• Load your profile and enjoy!

⚠️ If you don't see the engines, make sure the mod is enabled and placed above other engine or sound mods.

✅ Compatible with ATS 1.59+