Product Details
The Cummins X15 is an inline six-cylinder diesel engine with a 14.9-liter displacement, designed for heavy-duty commercial vehicles and industrial power systems. It operates within a power range of 450 hp to 605 hp, generating a peak torque of 2,050 lb-ft at 2,100 RPM. The engine structure weighs approximately 1,436 kg and utilizes a high-pressure injection system for consistent fuel delivery.
This engine is applied in Class 8 heavy-duty trucks, construction machinery, and stationary industrial equipment requiring continuous high-load operation. Detailed technical ratings for specific horsepower and torque configurations are provided in the tables below.
Technical Specifications
Core System Integration & Part Support
A complex 15-liter engine depends entirely on high-quality surrounding components. Therefore, YiZhi Power manufactures and stocks critical precision parts to keep your X15 series running at peak efficiency.
1. High-Pressure Injection & Valvetrain Components
The 2024 X15 utilizes a refined XPI fuel system for cleaner combustion. For instance, our premium replacement injectors ensure precise fuel delivery. Additionally, we provide heavy-duty camshafts, valves, and drive belts. These internal wear parts meet strict industry standards to prevent unexpected timing failures.
2. Industry-Leading Cummins Engine Brake Parts
The X15 platform delivers up to 600 braking horsepower. This powerful system reduces wear on your regular service brakes significantly. We supply high-strength engine brake components and valve actuators. Consequently, workshops can rebuild the braking mechanism safely during major overhauls.
3. Smart Fuel and Lube Filtration Systems
Extended service intervals require superior holding capacity. Therefore, we stock factory-grade oil filters and water separators. These components integrate perfectly with the X15’s high-capacity electronic control module (ECM) to maximize engine safety.
Maintenance Intervals & Parts Ordering
The Cummins X15 Series offers some of the longest service intervals in North America. However, high-mileage fleets require a reliable source for routine refresh kits.
Valvetrain & Drive Belts Maintenance: Set at 500,000 miles (10,000 hours).
DEF Filter Maintenance: Required at 300,000 miles.
Overhaul Rebuild Kits: Essential for extending equipment life beyond 600,000 miles.
YiZhi Power offers complete overhaul kits. These include new cylinder heads, gaskets, pistons, and bearings.
Key Features & Commercial Benefits
VG Turbocharger Feature:
Highly reliable and precise variable geometry design.
Benefit: Enables rapid acceleration and optimized power delivery.
XPI Fuel System Feature:
High-pressure common rail system that enables multiple injection events per cycle.
Benefit: Delivers industry-leading fuel economy and noticeably quieter engine operation.
Single-Module Aftertreatment System Feature:
A highly compact and lightweight exhaust system.
Benefit: Offers increased ash capacity and extended DPF maintenance intervals, maximizing uptime.
Fleetguard Fuel & Lube Filters Feature:
Superior filtration efficiency and higher contaminant-holding capacity.
Benefit: Provides premium engine component protection and supports longer service intervals.
High-Capacity Electronic Control Module (ECM) Feature:
Advanced microprocessing that fully integrates data inputs from all engine subsystems.
Benefit: Real-time diagnostics and continuous optimization of performance and emissions.
Cummins Heavy-Duty Engine Brake Feature:
Industry-leading design delivering up to 600 braking horsepower.
Benefit: Drastically reduces service brake wear, lowering fleet operation and replacement costs.





