Excavator Accessories Fuel Injector 104-3377 0R-8786 126-0499 222-5966 111-7916 116-3526 138-8754 138-8756 for Cat Spares 3126B 3126E for Construction Machinery
Excavator Accessories Fuel Injector 104-3377 0R-8786 126-0499 222-5966 111-7916 116-3526 138-8754 138-8756 for Cat Spares 3126B 3126E for Construction Machinery
Detailed Product Datasheet:
| Parts Number |
138-8756 |
| Part Name |
222-5966 |
| Payment | L/C , T/T |
| Packing | Original / Netural |
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The c-aterpillar 138-8756 injector is a high-precision, heavy-duty fuel injection core component exclusively designed for c-aterpillar 3412 series engines, including 3412C, 3412E, 3412TA and 3412D models. It adopts upgraded Electronic Unit Injection (EUI) technology and adheres strictly to c-aterpillar’s original manufacturing standards, integrating high-strength wear-resistant materials and enhanced sealing structure. Specifically tailored to the high-load, high-pressure and harsh working environments of 3412 series engines, this injector delivers exceptional injection precision, superior durability and efficient fuel economy. It enables direct replacement of original parts, rapidly restores engine power, reduces maintenance frequency, and provides long-term stable operation support for all heavy-duty equipment equipped with 3412 engines.
Core Parameters & Compatibility
| Parameter Item | Specific Specific-ations | Core Value |
| Applicable Engine Models | c-aterpillar 3412C, 3412E, 3412TA, 3412D | 100% OEM-compatible, perfectly matching the original engine’s injection system without any modific-ation, avoiding power instability, difficult startup and fuel leakage caused by mismatched injectors. |
| Injection Technology | Upgraded Electronic Unit Injection (EUI) Technology | Achieves more precise control of injection timing, fuel volume and pressure, supports three-stage injection (pre-injection + main injection + post-injection), optimizes combustion efficiency and ensures stable engine power output. |
| Product Material | Tungsten carbide precision nozzle, high-strength alloy plunger, titanium-plated anti-corrosion surface (Hardness: HRC73-75) | Significantly enhances wear resistance, high-temperature resistance and corrosion resistance, effectively preventing nozzle wear, carbon deposition and needle valve jamming, extending the injector’s service life. |
| Replacement Part Numbers | 138-8754, 10R-1267, 20R-0758, 178-0199 | Cross-compatible with multiple related injector models, facilitating spare parts procurement and reducing inventory pressure for users. |
| Warranty Period | 15 months (New Parts); 12 months (Remanufactured Parts, Unlimited Working Hours) | Covers all quality-related issues, including injection pressure deviation, component damage and needle valve jamming, providing professional after-sales technical support. |
Core Performance Features
| Performance Aspect | Technical Details | Product Advantages |
| High-Precision Injection | 8-hole precision nozzle, injection error ≤ ±0.8%, maximum injection pressure: 2000bar | Ensures uniform fuel atomization and full combustion, reducing carbon deposition by 20%, improving engine efficiency and reducing exhaust emissions. |
| Super Durability | IP68 protection grade, 210 million injection cycles endurance, operating temperature: -40℃ to 150℃ | Adapts to harsh working environments such as high dust, high humidity and extreme temperature, service life up to 8200 working hours. |
| Energy Saving & Emission Reduction | Solenoid valve response time ≤ 0.08ms, intelligent closed-loop fuel control system | Reduces fuel consumption by 13%-16%, meets Euro V emission standards, significantly lowering long-term operation costs. |
| Easy Installation & Maintenance | OEM standard size, net weight: 2.2kg, installation time ≤ 18 minutes, detachable nozzle for easy cleaning and maintenance | Direct replacement without modifying the engine, reducing equipment downtime and simplifying daily maintenance work. |
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