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Caterpillar original 171-9704 High Performance Diesel Engine Fuel Injector 20R-5392 Replacement for Caterpillar 3412 3408 Engine, for heavy duty diesel engine application original new injector
| Brand Name: | CATERPILLA |
| Model Number: | 171-9704 |
| MOQ: | 1 |
| Price: | $86-$141 |
| Packaging Details: | Original Packing |
| Payment Terms: | T/T, Western Union |
Caterpillar 3412 diesel fuel injector
,heavy duty diesel engine injector
,original Caterpillar 171-9704 injector
Caterpillar original Diesel Engine Parts Fuel Injector Common Rail Injector Assy for 3126 3126B 3126E Engine, 171-9704, Replacement for OEM, Fits Excavator and Truck Applications original new injector
Fuel Type | Diesel |
Condition | New / Remanufactured Available |
Applicable Engine | Caterpillar 3126, Caterpillar 3126B, Caterpillar 3126E, CAT 3126 ATAAC, CAT 3126 Marine, CAT 3126 Generator, CAT 3126 Industrial, CAT 3126 Truck Engine |
Injector Type | HEUI (Hydraulic Electronic Unit Injection) Fuel Injector |
Quality Standard | OEM Specification |
Packaging | Industrial Export Packaging |
Fuel System | HEUI (Hydraulic Electronic Unit Injection) |
OE Number | 171-9704 (1719704) |
Brand | Caterpillar (CAT) |
Cross Number / Universal Number | 0R-8686 (0R8686), 10R-0955 (10R0955), CAT1719704, 1719704CAT |
Vehicle / Equipment Application | Excavators, Wheel Loaders, Motor Graders, Generator Sets, Marine Engines, Commercial Trucks, Buses, Industrial Power Units, Agricultural Equipment, Construction Equipment |
Application Type | Construction, Commercial Transportation, Marine, Industrial, Power Generation, Agricultural |
As a precision-manufactured fuel injection solution for heavy-duty Caterpillar diesel engines, the 171-9704 HEUI injector is built to strict OEM specifications for seamless fit and function across the 3126 engine series. It is compatible with all listed 3126 variants, including the standard 3126, 3126B, 3126E, as well as ATAAC, marine, generator, industrial and truck-specific configurations. The injector is available in both new and remanufactured conditions to support diverse operational and budget requirements, with all units meeting consistent OEM quality standards.
Operating as a core component of Caterpillar’s Hydraulic Electronic Unit Injection (HEUI) system, the 171-9704 uses high-pressure engine oil to actuate injection events, enabling precise control over fuel timing and metering across all engine load conditions. Its precision-machined, hardened internal components and corrosion-resistant materials extend service life in harsh environments, while advanced nozzle technology delivers superior fuel atomization. These design features improve combustion efficiency, boost power output, reduce fuel consumption and emissions, and enhance cold-start performance.
This versatile injector supports a broad range of heavy-duty equipment across sectors, including excavators, wheel loaders, motor graders, commercial trucks, buses, marine engines, generator sets, industrial power units and agricultural machinery. It delivers industrial-grade reliability for construction, transportation, marine, power generation and agricultural applications, and comes with a 12-month warranty. Each unit is packed in industrial export packaging to meet global B2B shipping and storage demands.
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Contact Detail:
ADD:Huangpu Machinery City, No.585-A, No.138, Southeast Road, Huangpu District, Guangzhou City,
Guangdong Province Tel:+86 020 88557755
Cellphone:+86 19959162250 WhatsApp:+86 19959162250
Email:2209396088@qq.com
