C-aterpillar 150-4453 Fuel Injector for 3512B Series Engine

Product Overview

The C-aterpillar 150-4453 is a heavy-duty, mechanically actuated electronically controlled unit injector (MEUI) precision-engineered as an OEM-quality replacement for the C-aterpillar 3512B V-12 diesel engine. Built to adhere to stringent C-at original manufacturing standards, this injector delivers superior fuel atomization, precise metering, and exceptional durability for extreme-duty operations. It is fully optimized for mining, industrial power generation, and large marine appliC-ations, ensuring maximum engine performance, fuel efficiency, and compliance with strict emission regulations.

1. Basic SpecifiC-ations & Compatibility

The 150-4453 fuel injector is a direct-fit, interchangeable component designed for seamless integration with the C-aterpillar 3512B engine's ADEM II electronic control module. Its precision-machined housing and connectors ensure perfect alignment with the engine's fuel system, requiring no modifiC-ations during installation. This high level of compatibility guarantees consistent performance across all 3512B configurations, especially in the high-load, harsh environments of mining, construction, and marine operations.

2. Performance & Injection Parameters

Engineered for high-pressure performance, the 150-4453 operates at a peak pressure of 2000 bar, efficiently breaking diesel fuel into fine droplets of 40 microns or smaller. This advanced atomization ensures complete and efficient combustion within the 3512B's combustion chamber, directly improving fuel economy by up to 10–14% compared to worn or standard injectors. The high-speed solenoid valve responds in under 0.12 milliseconds, enabling precise electronic control over injection timing and quantity, which is critical for optimizing power output and reducing harmful exhaust emissions. Its robust IP67 sealing ensures reliable operation in dusty, wet, and high-vibration environments.

3. Material & Construction Features

The 150-4453 injector is constructed with premium materials selected to withstand the punishing conditions of the 3512B engine. The needle valve and seat feature a tungsten carbide coating for exceptional hardness and resistance to wear from abrasive fuel contaminants. The plunger and barrel assembly undergoes specialized nitriding for a durable, low-friction surface. Precision laser-drilled nozzle holes ensure a consistent and optimal fuel spray pattern, while high-grade Viton® seals guarantee long-term, leak-free performance through millions of injection cycles.

4. Precision Manufacturing & Quality Control

Every 150-4453 injector undergoes a rigorous remanufacturing and multi-stage quality control process to ensure C-at OEM-level reliability. Critical components are machined to ultra-fine tolerances, and the needle guide is precision-honed to minimize clearance. Each injector is individually calibrated and flow-tested on specialized C-aterpillar equipment to match exact OEM fuel delivery specifiC-ations. Rigorous pressure, vibration, and thermal cycling tests validate performance under the most severe operating conditions, ensuring dependable operation in the field.

5. Key Advantages & Performance Benefits

The 150-4453 injector provides a comprehensive set of advantages for the 3512B engine. Its design significantly boosts fuel efficiency by 10–14% through optimal atomization and precise electronic control. It ensures the engine maintains its full rated power output consistently. The improved combustion process reduces emissions of NOx and particulate matter, meeting strict environmental standards. The durable construction extends service life and reduces maintenance frequency, lowering operational costs and minimizing costly downtime while offering a cost-effective alternative to new OEM parts.

6. Installation & Maintenance SpecifiC-ations

To achieve maximum performance and service life from the 150-4453 injector, installation must be performed by a C-aterpillar-certified technician using official C-at service tools. Correct torque values are essential to prevent internal damage and ensure a proper seal. Regular inspections every 8,000 engine hours and a recommended overhaul at 20,000 hours will maintain optimal performance. The injector is designed for use with clean, ultra-low-sulfur diesel fuel, requiring a stable inlet pressure of 40–50 psi. Adhering to these guidelines ensures sustained peak performance and maximizes the lifespan of your C-aterpillar 3512B engine.