61-4357 614357 Common Rail Diesel Fuel Injector Assembly for Cat Enqine 3500series

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This industrial-grade heavy-duty diesel engine electronic common rail injector (OE No.: 261-4357, corresponding Reman remanufactured part No.: 10R-3232) is a core actuator for precise fuel supply in high-pressure common rail fuel systems. It is specifically designed for Cater-pillar's classic high-power diesel engines (such as the CAT C13 series), perfectly compatible with Cater-pillar 345D and 349D series crawler excavators, D8N and D8T series heavy-duty bulldozers, as well as various large long-haul heavy trucks and industrial mobile power stations. This product integrates cutting-edge electro-hydraulic servo technology with ultra-high pressure precision anti-internal leakage design, aiming to provide engines under harsh operating conditions with uniform and delicate fuel atomization and microsecond-level injection response. When your heavy-duty equipment is equipped with this precision fuel injector system, you can intuitively feel the engine, which was previously intermittently hesitant and trembling, instantly regain its robust and steady rhythm. When you press the accelerator, the horsepower output is extremely linear and powerful, and the billowing black smoke from the exhaust pipe caused by poor combustion is completely cleared, allowing the machinery to demonstrate reassuringly strong productivity during continuous high-load tunneling or heavy-load climbing.

Direct Sales from Our Own Factory and Ample Stock: Many international buyers often encounter the unfortunate situation of long cross-border supply chain cycles and high-value machinery being forced to remain stationary on construction sites for weeks due to shortages of core components. Leveraging our technologically advanced, self-built, modern manufacturing base, we maintain a large, regular inventory of the popular 261-4357 model. This pure factory-direct model supports rapid, lightning-fast order fulfillment, not only eliminating the layers of intermediaries in traditional foreign trade but also effectively ensuring that your engineering equipment can return to frontline operation in the shortest possible time. Strict Digital Quality Inspection and Nano-Superhard Anti-Wear: Addressing the shortcomings of inferior replacement parts on the market, such as insufficient anti-wear hardness of the sealing surface leading to internal pressure loss due to diesel impurities after short-term operation, resulting in difficulty starting the engine when hot or stalling at high loads, every injector we manufacture undergoes multi-dimensional flow and pressure calibration under all operating conditions on a full-function digital common rail test bench. The core control valve needle has been comprehensively upgraded with DLC (diamond-like carbon) superhard nano-coating technology, structurally sealing off potential wear hazards and ensuring stable durability even under extremely high pressure and harsh environments.

Original Factory-Grade Dynamic Oil Pressure Calibration and Outstanding Fuel Savings: Addressing the real-world problems of engine idling vibration, low fuel conversion efficiency, and soaring operating fuel costs caused by inaccurate fuel system supply regulation, this product is manufactured strictly based on OEM technical standards and electronic parameters. The precise multi-hole nozzle geometry ensures fine and uniform diesel particles under ultra-high rail pressure, achieving more perfect mixing and combustion with air in the cylinder. This not only completely eradicates the persistent problem of black smoke from the exhaust, but also significantly improves fuel conversion efficiency, helping owners effectively reduce hourly operating costs.

High-Speed ​​Fully Loaded Logistics Transportation on Highways: On the cross-border highway logistics arteries with undulating terrain and huge temperature differences, fully loaded heavy trucks are challenging winding mountain slopes stretching for kilometers. Drivers need to press the accelerator hard to prevent the engine speed from dropping. The 261-4357 fuel injector, based on instantaneous feedback from the electronic control unit, delivers extremely even fuel mist into the cylinder under ultra-high rail pressure, ensuring that the engine can generate amazing torque even at low speeds, helping trucks safely and smoothly pass through dangerous sections and achieve timely logistics deliveries.

Continuous Loading Operations in Open-Pit Quarries: In windy, sandy, and extremely high-temperature environments, large tracked excavators are continuously loading heavy loads onto hard rock layers. Faced with frequent bursts of resistance caused by cutting into hard soil, operators have extremely stringent requirements for power supply. This injector, with its excellent hydraulic and airtightness and shock-resistant structure, maintains precise fuel delivery even under continuous high-load vibration for dozens of hours, helping the equipment move quickly and powerfully, ensuring the uninterrupted and steady progress of the project.