250-1302 10r-1303 Common Rail Fuel Injector for Cater-pillar Cat 3512b 3516b Excavator

This industrial-grade heavy-duty diesel engine electronic control unit injector (OE number: 250-1302, common Reman remanufactured part number: 10R-3232 / 10R-1000 series branch) is a hydraulic precision fuel supply actuator specifically designed for Cater-pillar's classic high-power diesel engines (such as the CAT C13 series). It is widely compatible with Cater-pillar 345D and 349D series heavy-duty tracked excavators, D8N and D8T series mining bulldozers, as well as large long-haul engineering transport trucks and mobile industrial generator sets. This product deeply integrates advanced electro-hydraulic servo technology, with internal moving parts achieving micron-level mechanical fit precision. When your core machinery is equipped with this precision injector, the overall machine operation will be significantly improved: phenomena such as severe idling vibrations, metallic knocking noises, and cold start difficulties caused by fuel injection failure will instantly disappear, replaced by a crisp, regular, and extremely stable engine rhythm. Even under extreme conditions such as tunneling with strong resistance or climbing at steep angles with heavy loads, every press of the accelerator pedal delivers an extremely linear and abundant power response, completely eliminating the previously glaring thick smoke from the exhaust pipe, helping the machinery regain its full operational capability from its factory condition.

Direct Sales from Our Own Modern Factory and Ample Stock: Many overseas buyers are often troubled by the long cross-border parts supply chain and the markups from multiple intermediaries. They often suffer from shortages of core components, forcing expensive machinery to sit idle on construction sites for extended periods, incurring significant daily losses. Leveraging our technologically advanced self-built manufacturing base, we maintain a large, regular inventory of the popular heavy-duty 250-1302 model. This direct-from-the-end factory model allows for rapid packaging and shipment after order placement, eliminating all intermediary profit margins and ensuring your equipment can return to operational status in the shortest possible time. Full-Process Digitalized Strict Quality Inspection and Nano-Superhard Anti-Wear: Some low-end replacement parts on the market, due to insufficient wear resistance of moving parts, are prone to wear after a short period of operation caused by minute impurities in diesel fuel, leading to internal pressure loss, failure to build up fuel pressure when hot, and engine stalling under high load. Therefore, every injector we manufacture undergoes extreme testing on a full-function digital common rail test bench, including multi-dimensional and full-condition flow regulation, pressure holding and sealing, and dynamic oil return. The control valve needle and core components have been comprehensively upgraded with a DLC (diamond-like carbon) superhard nano-coating process, structurally sealing potential oil leaks and ensuring excellent long-term durability even under harsh fuel environments with high temperature and pressure.

Original Factory-Grade Injection Dynamic Calibration and Superior Fuel Savings: Addressing the objective reality of rough engine operation, low fuel conversion efficiency, and soaring fuel costs in daily operations caused by inaccurate fuel system supply regulation, our products are manufactured strictly according to the original OEM mechanical structure and electronic data. The precise geometry of the multi-hole nozzle ensures fine and uniform diesel particles under ultra-high pressure injection, achieving a more perfect mixture and combustion with the air in the cylinder. This not only fundamentally solves the persistent problem of black smoke emissions from machinery but also significantly improves fuel conversion efficiency, helping owners save substantial hourly fuel costs during long-term operation.

High-Speed, Fully Loaded Long-Distance Logistics Transportation on Highways: On the cross-border highway logistics arteries with drastically varied terrain and huge temperature differences, heavy trucks loaded with tens of tons of goods are challenging winding mountain slopes several kilometers long. Drivers need to press the accelerator hard to prevent the engine speed from dropping. The 250-1302 fuel injector, based on the instantaneous feedback of the electronic control unit, delivers fuel mist extremely evenly into the cylinder under ultra-high rail pressure, ensuring that the engine can generate amazing torque even in the low-speed range, helping trucks safely and smoothly pass through dangerous sections and achieve timely logistics.

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 fuel injector, with its excellent hydraulic and airtightness and shock-resistant structure, maintains precise and stable fuel supply even under continuous high-load vibration for dozens of hours, assisting the equipment in rapid and powerful movements and ensuring the uninterrupted and steady progress of the project.