280-0574 10r-8989 Common Rail Fuel Injector for Cater-pillar Cat C15 Engine

This heavy-duty industrial-grade electronic fuel injector (OE No.: 280-0574, interchangeable Reman No.: 10R-7221 / 10R7221) is a high-precision injection control unit developed for modern medium-to-high power systems. This product is perfectly compatible with Cater-pillar (CAT) C7 series high-pressure common rail and HEUI electronically controlled diesel engines, and is widely used in Cater-pillar 324D, 325D, and 329D hydraulic excavators, D6N tracked bulldozers, 950H and 962H wheel loaders, as well as heavy-duty graders and mobile special industrial generator sets.

The product incorporates the manufacturing concept of "ultra-precise combustion and highly sensitive fluid control." The internal needle valve assembly and plunger are aerospace-grade ground and coated with a special low-friction, anti-coking coating, maintaining excellent fuel supply stability even when facing complex and variable diesel fuels over long periods. After your machinery is equipped with these brand-new injectors, operators will immediately notice a crisper and faster engine start, with responsive and explosive throttle feedback. During heavy-duty excavation or high-resistance bulldozing, engine power output is smooth and continuous. Issues previously caused by worn parts and poor atomization, such as sudden stalling, unstable revs, severe idling vibrations, and black smoke from the exhaust, will completely disappear, allowing the equipment to regain its powerful productivity.

• Direct Sales from Our Own Manufacturing Plant, Breaking the Channel Premiums of Multinational Distributors: Addressing the current situation where construction machinery parts are monopolized by traditional multi-level networks, resulting in high retail prices and slow technical feedback, we leverage our own modern production base for independent direct sales. This flattened cross-border supply chain not only completely eliminates the profit margins of intermediaries but also directly reduces the material replacement budgets for fleets and independent repair shops, making long-term operation and maintenance of classic models more cost-effective.
• Maintaining a large, dedicated inventory to mitigate downtime risks due to equipment shortages: Heavy excavators and bulldozers are high-value assets. A breakdown due to a fuel injection system malfunction results in significant daily downtime costs and project delays. Therefore, we maintain a dynamic inventory management system with high reserve limits for these popular models, ensuring ample stock year-round. Once an order is confirmed, it can be packaged and shipped within 24-48 hours, using rapid international logistics to help your machinery quickly return to work.
• 100% Full-Simulation Working Condition Test Bench Inspection to Eliminate Early Component Seizure and Pressure Leakage: Addressing common quality issues in injectors from inferior manufacturers, such as solenoid valve delays, excessive high-pressure return oil volume, and easy carbonization and jamming of components, every product undergoes rigorous testing on a high-precision automated test bench before leaving the factory. Under 100% simulated extreme high-temperature and high-load conditions, the pre-injection, main injection, and return oil sealing are precisely measured to ensure excellent consistency and long service life for every product leaving the factory.

• Municipal Infrastructure and High-Intensity Loading Operations of Medium and Heavy-Duty Hydraulic Excavators: In dusty, harsh construction environments with tight deadlines, Cater-pillar 325D excavators equipped with C7 engines are performing continuous hard soil excavation and large-tonnage loading at urban road or pipeline construction sites. As the hydraulic bucket cuts into hard rock layers, causing a sudden increase in system load, the 280-0574 injector, with its microsecond-level electronic control response, establishes perfect atomization pressure. This ensures that the engine can still output continuous high torque even when facing drastic fluctuations in engine speed, resulting in smooth compound movements and preventing stalling or engine misfires.
• High-Dust Quarry Bulk Loading and Continuous Bulldozing and Leveling Operations: In large sand and gravel quarries or mining areas with rampant dust and high ground resistance, the Cater-pillar D6N tracked bulldozer is performing high-frequency reciprocating bulldozing and leveling operations. Operators frequently increase throttle and quickly change direction. The injector, relying on its extremely high fuel supply consistency, precisely controls the timing of each injection, ensuring complete combustion of diesel fuel in the cylinder. This guarantees the equipment's powerful traction while significantly reducing exhaust smoke, effectively locking in energy costs for long-term operation.

Q: Why are the prices on your independent website so much more affordable than what we get at local parts stores?

A: Local physical parts stores typically go through multiple layers of distribution, including international importers, wholesalers, and retailers, adding to their markups and incurring high rent and operating costs. We, on the other hand, rely on our own modern manufacturing plant for direct online sales, shipping brand-new products directly from our warehouse to you, eliminating all unnecessary intermediary profits and thus passing on the true factory price directly to you.

Q: My excavator at the construction site is down due to a faulty injector. How long will it take to ship my order?

A: We understand the associated work stoppages caused by heavy machinery downtime, so we maintain ample stock of this core model year-round. Goods will be checked and shipped within 24 to 48 hours of your order payment. We use major international express delivery channels such as DHL and FedEx, ensuring safe delivery within 5-9 business days.

Q: What installation procedures require special attention when replacing these new high-pressure injectors?

A: Heavy-duty diesel engine electronic injection systems are extremely precise, with zero tolerance for even the smallest metal fragments or impurities like mud and sand. Before installing a new injector, please ensure your technician thoroughly cleans the original diesel tank, common rail, and the entire fuel line, and replaces the fuel filter with a brand new, high-specification one. Ensuring a clean fuel system is a prerequisite for maximizing the performance of new parts and guaranteeing their extended lifespan.

Q: What if I find I bought the wrong model when checking the specifications, or encounter performance abnormalities during subsequent use? What kind of guarantee do you provide?

A: As long as the product has not been opened or tested, its appearance and accessories are intact, and it does not affect our resale, we offer a 90-day return and exchange guarantee. Furthermore, this brand new injector enjoys an extended 12-month warranty. If any quality malfunctions occur that are not caused by human error or contamination by inferior diesel fuel, our after-sales customer service team will provide you with technical analysis or free replacement service as soon as possible.