CAT 3126 Diesel Injector 131-7150 – High-Pressure Unit Injector For Caterpillar 3126 Engine | OEM Performance Replacement
1. Product:131-7150
2. Compatible Equipment: Diesel Fuel Injection Systems
3. Manufacturer: Aftermarket OEM Replacement
4. Condition: Brand New, Fully Tested
5. Origin: ABOSEDE Diesel
6. Shipping period: 3-5 business days
7. Payment terms: T/T, Western Union, PayPal
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Product Introduction
In heavy-duty diesel platforms, injection is best understood not as fluid delivery, but as a controlled energy transformation inside the cylinder environment. The CAT 3126 injector 131-7150 operates by converting hydraulic energy (engine oil pressure) into ultra-high diesel injection force, enabling precise atomization at the exact combustion moment. This approach allows the engine to dynamically balance torque output, emissions control, and thermal efficiency-especially under fluctuating load conditions typical of industrial and on-highway operations.
Engineering Architecture – HEUI System Integration
The 131-7150 injector is designed around the HEUI principle, combining:
High-pressure oil circuit (actuation medium)
Electronic solenoid control valve
Precision-machined plunger & barrel assembly
Multi-hole nozzle tip for atomization
This architecture allows independent control of injection pressure and timing, a major advancement over mechanically driven systems. The result is improved cold start performance, smoother idle, and optimized combustion across RPM ranges.
📊 Technical Specifications
| Parameter | Specification |
|---|---|
| Injector Type | HEUI (Hydraulically Actuated Electronic Unit Injector) |
| Part Number | 131-7150 |
| Engine Compatibility | CAT 3126 Diesel Engine |
| Injection Pressure | Up to ~20,000+ psi (oil-actuated amplification) |
| Control Method | ECM-driven solenoid |
| Nozzle Type | Multi-orifice precision nozzle |
| Fuel Medium | Diesel (compression ignition system) |
| Installation | Direct cylinder head mounting |