Fuel Injector 10R-2826 for C-aterpillar 3512B Series - Product Details

The 10R-2826 Fuel Injector is a premium, OE-matching common rail fuel injector exclusively engineered for the C-aterpillar 3512B diesel engine series, a heavy-duty power unit widely utilized in marine propulsion, large-scale mining machinery, heavy-duty power generation, and other demanding industrial applications. As a critical core component of the engine’s fuel delivery system, it is meticulously manufactured in compliance with Caterpillar’s strict OE standards, integrating advanced precision machining technology, high-quality materials, and rigorous quality control processes. The 10R-2826 injector delivers exceptional reliability, superior fuel atomization efficiency, and extended service life, perfectly addressing the high-performance requirements of the C-aterpillar 3512B engine in harsh operating environments. Below are the detailed specifications, core features, and competitive advantages of the 10R-2826 injector, presented in 5 comprehensive tables with corresponding in-depth descriptions to fully highlight its technical superiority and unique selling points.

1. Basic Product Information & Compatibility

The 10R-2826 injector is specifically tailored to perfectly match the C-aterpillar 3512B engine, a high-power diesel engine renowned for its exceptional stability and durability in harsh marine and industrial environments, including large excavators, marine propulsion systems, heavy-duty power generators, and industrial machinery. As a genuine-quality new injector, it is fully compatible with the 3512B engine’s fuel system and is marked with the part number 10R-2826 (or 10R2826 for simplified identification), which is compatible with the OE number 249-0746 to ensure seamless replacement. Its standard OE size—with a net weight of 3.0 kg and detailed dimensions of 36.83 cm in length, 14.22 cm in height, and 7.87 cm in width—ensures a direct fit without any modifications or adapters, allowing for easy and efficient installation and immediate restoration of engine performance. Manufactured in a CE, ISO 9001, TS 16949, and ISO 2699-2018 certified facility, each unit undergoes strict quality control during every stage of production, guaranteeing consistent performance and reliability across all injectors. The injector is designed to work with all standard diesel fuels for heavy-duty engines, making it highly versatile for various application scenarios.

2. Core Performance Parameters

The 10R-2826 injector is engineered to deliver exceptional performance that directly enhances the C-aterpillar 3512B engine’s functionality, especially in high-demand scenarios. With an injection cycle life of at least 1,500,000 cycles under full load, it is built to withstand the rigorous demands of marine and industrial applications, significantly reducing downtime and replacement costs. Its precise fuel delivery accuracy, with a deviation of only ±0.3%, ensures that the engine receives the exact amount of fuel needed for each combustion cycle, eliminating fuel waste, optimizing power output, and reducing operational costs. The operating pressure range of 18-32 MPa is perfectly calibrated to the 3512B engine’s high-pressure common rail fuel system, while the uniform, fine atomization with an optimized cone angle (16-22°) ensures complete fuel combustion—lowering unburned fuel, reducing harmful emissions (such as NOx and particulate matter), and improving overall fuel efficiency. Additionally, its rapid response time of ≤ 0.002 seconds ensures instantaneous fuel injection, resulting in smooth engine operation even under variable load conditions, which is critical for heavy-duty applications. The injector’s wide operating temperature range (-40°C to 120°C) allows it to adapt to extreme cold and high-heat environments, ensuring stable performance in all harsh working conditions.

3. Material & Construction Features

Every component of the 10R-2826 injector is crafted from high-quality, durable materials to ensure exceptional performance and longevity in the harsh operating environments of the C-aterpillar 3512B engine. The injector body is made of heat-treated, anti-corrosion coated high-speed steel—chosen for its high strength and durability—providing superior resistance to high pressure, corrosion (including saltwater corrosion for marine applications), and wear, which is critical for withstanding extreme marine and industrial conditions. The nozzle is made of 316L stainless steel, a material known for its excellent corrosion resistance, and is precision ground and polished to guarantee smooth fuel flow, a consistent spray pattern, and resistance to clogging, even when using low-quality diesel fuel. The internal seals are made of PTFE (Polytetrafluoroethylene) rubber, which is highly resistant to high temperatures, pressure, all diesel fuels, and chemicals, preventing fuel leakage and ensuring reliable operation. The chrome-plated high-strength alloy steel plunger and intensifier body, with precision machining, minimize fuel dilution, ensure stable pressure transmission, and reduce wear, while the ceramic-coated 316L stainless steel nozzle tip enhances heat resistance (up to 1200°C) and wear resistance, maintaining spray precision over the injector’s entire service life.

4. Quality Testing & Quality Assurance

Quality is the cornerstone of the 10R-2826 injector, and every unit undergoes 100% rigorous testing before leaving the factory to ensure it meets the highest standards—consistent with our commitment to quality through multiple inspection and test processes. Using OE manufacturing equipment and adhering to international standards such as ASTM D6421-2020, each injector is tested for spray pattern, ensuring uniform atomization without irregularities or dripping, and meeting the required spray cone angle for optimal combustion. A full pressure leakage inspection, compliant with GB/T 18590-2008, is conducted to guarantee no fuel leakage at the maximum operating pressure of 32 MPa, preventing engine damage and fuel waste. The fuel delivery test, calibrated with precision flow meters and following ISO 2699-2018, ensures that each injector meets or exceeds Caterpillar’s OE specifications for fuel delivery accuracy. Additionally, a durability test according to ISO 7870-2015 confirms that the injector can withstand over 1,500,000 load cycles without performance degradation. To provide customers with peace of mind, the 10R-2826 injector comes with a 12-month warranty, covering all manufacturing defects and ensuring reliable after-sales support.

5. Installation & Operational Advantages

The 10R-2826 injector is designed for ease of use, reliability, and adaptability to the demanding operating conditions of the C-aterpillar 3512B engine. Its direct fit design—with identical dimensions to the OE injector—eliminates the need for modifications or adapters, allowing for quick and straightforward installation, which saves time and reduces labor costs. The injector is engineered to operate reliably in extreme environments, with a temperature range of -40°C to 120°C, and is resistant to saltwater and industrial corrosion, making it ideal for marine applications and harsh industrial settings. With wear-resistant components, an anti-clogging 316L stainless steel nozzle, and tight PTFE seals, the injector requires minimal maintenance—easy to clean and service—lowering long-term operational costs for equipment owners. Additionally, 24/7 professional technical support, installation guidance, and online training are available, providing prompt assistance with installation, troubleshooting, and any technical queries, ensuring a seamless user experience. Its universal compatibility with all standard diesel fuels for heavy-duty engines enhances its versatility, making it suitable for various application scenarios and fuel quality conditions.

In summary, the 10R-2826 Fuel Injector is a premium 100% new common rail fuel injector exclusively designed for the C-aterpillar 3512B series engine, combining precision engineering, high-quality materials (including high-speed steel and 316L stainless steel), strict quality control, and advanced performance features. It delivers exceptional reliability, fuel efficiency, and durability, making it the ideal choice for marine propulsion, mining machinery, heavy-duty power generation, and other industrial applications powered by the C-aterpillar 3512B engine. Whether replacing a worn injector or upgrading for better performance, the 10R-2826 ensures optimal fuel delivery, improved engine performance, and long service life, backed by reliable quality assurance, a 12-month warranty, and comprehensive after-sales support. Its compatibility with OE No. 249-0746 further ensures seamless replacement and integration