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Product Overview:
The Cummins 3076703 is a genuine K-STC PT (Pressure-Time) fuel injector engineered and manufactured by CCEC (Chongqing Cummins Engine Company) for heavy-duty K-series diesel engines. As a critical component of the Cummins PT fuel injection system, this mechanical injector converts low-pressure fuel from the PT fuel pump into high-pressure atomized fuel, delivering precise fuel metering and optimal combustion performance under the most demanding operating conditions.
Product Specifications:
| Category | Details |
|---|---|
| Part Number | 3076703 (Cross Reference: 3279719, 3076703PX, 3076703 PX) |
| Product Name | K-STC Type PT Fuel Injector |
| Manufacturer | CCEC (Chongqing Cummins Engine Company) / Genuine Cummins USA |
| Product Type | Mechanical PT (Pressure-Time) Fuel Injection System Injector |
| Lifecycle Status | In Production & Active, Widely Used in Current K-Series Engines |
| Weight | Approx. 1.05kg |
| Dimensions | Approx. 7cm × 7cm × 27cm |
| Injection Pressure | 70-138MPa (10,000-20,000PSI) |
| Fuel System | Cummins PT Fuel System (Compatible with PT Pumps: 4951415, 4915030-25, etc.) |
| Material | High-Strength Alloy Steel (Body) + Precision Matched Components (Needle Valve to Body Clearance: Only 2μm) |
| Working Principle | Converts low-pressure fuel from PT pump into high-pressure atomized fuel for combustion; ~80% of fuel circulates to cool the injector before returning to the tank |
| Certifications | ISO 9001, CE, TS16949 |
Primary Applications:
| Application Category | Specific Use Cases |
|---|---|
| Generator Sets | 500kW-1600kW high-power diesel generator sets (e.g., 800kW Cummins generator sets) |
| Marine Power | Main engines and auxiliary engines for inland and offshore vessels |
| Construction Machinery | Large excavators, wheel loaders, bulldozers and other heavy equipment |
| Heavy Trucks | Mining dump trucks and special heavy transport vehicles |
| Industrial Power | Oil drilling equipment, mining machinery, pump units and other industrial power units |
Why Choose us?
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