104-3377 0R-8786 138-8756 126-0499 2225966 10R0781 222-5966 20R-0759 173-4059 Fuel Injector Suitable for CAT 3126B 3126E Engine
104-3377 0R-8786 138-8756 126-0499 2225966 10R0781 222-5966 20R-0759 173-4059 Fuel Injector Suitable for CAT 3126B 3126E Engine
Detailed Product Datasheet:
| Parts Number |
138-8756 |
| Part Name |
173-4059 |
| Payment | L/C , T/T |
| Packing | Original / Netural |
1.Sample order is accepted.
2.70% of our popular selling products are in stock, which make sure quickly delivery. Normally, orders can be send out within 5 working days.
3.The product has undergone a rigorous testing process, and we provide high-quality products;
4.We are professional in engine oil supply system;
The c-aterpillar 138-8756 is a heavy-duty sealed HEUI (Hydraulic Electronic Unit Injector) engineered exclusively for c-aterpillar 3126, 3126B and 3126E diesel engines, focusing on solving the common pain points of fuel leakage, premature wear and inconsistent performance in mid-to-high hour construction and industrial machinery, serving as a premium direct OEM replacement that prioritizes long-term durability and zero-fault operation. Unlike previous 3126 series injectors that focus on cold start, fuel saving or high-load power alone, this model is optimized for 360° full-sealing design and balanced all-working-condition performance, with upgraded corrosion-resistant internal valves and precision-ground nozzles to eliminate fuel seepage, carbon clogging and power fluctuation issues that plague aging equipment. Crafted from high-strength wear-resistant materials and passing strict factory-level calibration and leakage tests, it maintains stable fuel delivery and atomization in dusty construction sites, variable fuel quality environments and long-hour continuous operation, with 1:1 OEM dimensional matching for hassle-free,
Core Product Specific-ations (138-8756)
| Specific-ation Item | Detailed Specific-ation |
| Part Number | 138-8756 (Direct c-at OEM Replacement, Fully Compatible with 3126 Series Original Fuel Systems) |
| Applicable Engine | c-aterpillar 3126, 3126B, 3126E Inline Diesel Engines (Mid-High Hour & Heavy-Duty Versions) |
| Injector Type | HEUI Hydraulic Electronic Unit Injector, Full-Sealing & Long-Life Optimized |
| Key Materials | High-Strength Forged Steel Body, Precision Ground Wear-Resistant Nozzle, Multi-Layer Sealing Rings, Corrosion-Proof Internal Components |
| Calibration Standard | OEM Full-Range Dynamic Calibration, Leak-Proof Pressure Tuning, Full Speed Fuel Flow Matching |
| Product Condition | Brand New Premium Aftermarket, 100% Pre-Shipment Leakage & Performance Tested |
Compatible Equipment & Applic-ation Scenarios
| Equipment Type | Compatible c-at Models |
| Excavators | c-at 320B, 320C, 321C, 322C, 312C Series Excavators (3126 Engine Equipped) |
| Heavy-Duty Haulers | c-at-Powered Construction Trucks, Freight Haulers, Municipal Utility Vehicles |
| Industrial Machinery | Fixed Generator Sets, Mobile Pump Units, Construction Compressors, Industrial Power Units |
| Off-Road Equipment | Quarry Auxiliary Machines, Small Mining Loaders, Long-Hour Outdoor Work Vehicles |
| Maintenance Uses | Fuel Leakage Fault Repair, Engine Overhaul, Long-Life Replacement, Routine Fuel System Maintenance |
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