New C-aterpillar C3126 Common Rail Diesel Engine Injector Model 232-1171 111-7916 177-4753 138-8756 222-5963 222-5972 173-4059
New C-aterpillar C3126 Common Rail Diesel Engine Injector Model 232-1171 111-7916 177-4753 138-8756 222-5963 222-5972 173-4059
Table 1 Basic Product Information
| Item | Details |
| OEM Part Number | 138-8756 |
| Cross Reference |
173-4059 |
| Product Type | Electronic Unit Injector (EUI) Assembly |
| Fit Engine | C-aterpillar 3126, 3114, 3116 inline 6cylinder diesel engine |
| Product Condition | New / Remanufactured (Reman) |
| Control Type | ECU controlled, cam driven |
| Net Weight | Approx. 0.5 kg |
| Installation | Vertical mount in cylinder head with injector tube |
| Test Standard | 100% flow, leakage, spray and solenoid tested |
Table 2 Core Technical Specifications
| Parameter | Standard Value |
| Injection Opening Pressure | 250–270 bar (25–27 MPa) |
| Rated Working Pressure | 280–320 bar |
| Number of Orifices | 5 holes |
| Nozzle Hole Diameter | 0.22–0.24 mm |
| Spray Cone Angle | 125°–130° |
| Fuel Delivery Per Cycle | 130–145 mm³/cycle |
| Flow Deviation | ≤ ±2% |
| Needle Lift | 0.30–0.32 mm |
| Sealing Performance | No internal or external leakage |
| Solenoid Resistance | 1.2–1.5 Ω @ room temperature |
| Cycle Life | ≥ 1,000,000 cycles |
Table 3 Components and Materials
| Component | Material / Specification |
| Injector Body | Highstrength alloy steel |
| Needle and Nozzle | Precision cemented carbide |
| Nozzle Holder | Carburized quenched alloy steel |
| Spring | Chromevanadium spring steel |
| Solenoid Valve | High permeability core, copper coil |
| Seals | Fluorine rubber (FKM) 40℃ to 200℃ |
| Inlet Strainer | Stainless steel mesh |
| Retaining Nut | Medium carbon alloy steel |
Table 4 Application and Installation Data
| Category | Model / Value |
| Compatible Excavators | 320B, 322B, 325B, 330B series |
| Compatible Compactors | CP-563, CS-533, CS-563 |
| Compatible Asphalt Pavers | AP-1000, AP-1050B |
| Engine Rated Speed | 2200–2400 rpm |
| Recommended Fuel | Diesel #0, #10 |
| Clamp Bolt Torque | 30±4 N·m |
| Injector Tube Nut Torque | 40±5 N·m |
| Service Recommendation | Replace all 6 injectors as a set |
Why Choose Us:
1)Great sales and after-sales Services - The principle of customer always comes first. To help you—our dear customer to save costs, we are committed to offer you high quality engine parts with the most competitive price. After sales, we are willing to provide technical support and glad to hear any feedback from you. It is your kind opinion that make us get more and more improvement.
2) Perfect after-sales service, if you encounter problems in the process of selling and using the product, you can contact us at any time;
3) Strong support from professional sales/engineer/technican team,shipment and after-service department.
4) Our company can provide more professional consulting services! Our company has technical personnel dedicated to customer service to provide
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