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3126 Series Injector 169-7408 Product Details

The 169-7408 fuel injector is a high-performance OEM-compatible replacement component specifically engineered for 3126, 3126B, and 3126E series diesel engines—commonly used in heavy-duty applications such as vocational trucks, construction machinery (excavators, wheel loaders), industrial power units, and agricultural equipment. Engineered to meet stringent OEM quality standards, this injector integrates advanced HEUI (Hydraulic Electronic Unit Injection) technology, premium wear-resistant materials, and rigorous quality control processes. It delivers exceptional operational stability, improved fuel efficiency, and an extended service life, even in harsh working environments (extreme temperatures, high pressure, long-term heavy loads, and low-quality diesel conditions). Available in both brand-new and high-quality remanufactured versions, it ensures seamless compatibility with the original engine system, including matching the required clamp part #169-7409 for secure installation, and provides reliable support for consistent engine power output and reduced maintenance frequency. Below are the detailed specifications, cross reference numbers (common numbers), core performance features, material & craftsmanship, quality testing standards, and application & warranty information, presented in 6 comprehensive tables, each paired with an in-depth description closely related to the product itself.

1. Basic Product Specifications

The table above details the core basic parameters of the 169-7408 injector, which is custom-developed for 3126, 3126B, and 3126E series engines, specifically tailored for 2004-2007 model year equipment. Its 330-485 HP horsepower range is precisely calibrated to match the power output requirements of the target engines, balancing robust power delivery and fuel efficiency without compromising engine performance or service life. A key feature of this injector is its compatibility with clamp part #169-7409, ensuring secure and proper installation as per OEM specifications, which is critical for preventing fuel leaks and maintaining optimal performance. As a HEUI system injector, it integrates hydraulic pressure and electronic control, delivering more precise fuel injection timing (±0.05ms accuracy) and duration compared to traditional injectors—this precision is crucial for improving combustion efficiency, reducing fuel waste, and lowering exhaust emissions (CO, NOx), consistent with the functional demands of modern injectors and global environmental standards. With a net weight of 3.4 lbs and OEM-standard dimensions, the injector enables direct, hassle-free installation without any modifications to the engine or fuel system, reducing installation time and labor costs. The injection pressure of up to 33,000 psi ensures ultra-fine fuel atomization for complete combustion, while its compatibility with low-sulfur diesel, standard diesel, and B20 biodiesel blends enhances its adaptability to diverse regions and harsh fuel conditions, making it suitable for a wide range of industrial, construction, and agricultural equipment scenarios.

2. Cross Reference Numbers (Common Numbers)

This table comprehensively presents all cross reference numbers (common numbers) for the 169-7408 injector, covering genuine OEM part numbers, high-quality aftermarket equivalents, and direct replacement part numbers—an essential feature for users seeking compatible replacement components for 3126 series engines. All listed cross references have undergone rigorous compatibility testing, ensuring that the 169-7408 injector can directly replace any component with the corresponding reference number, eliminating the risk of part mismatch during purchase and installation. Notably, the injector is fully compatible with a wide range of OEM numbers such as 169-7410, 175-3020, 641520, and OR9430, as well as aftermarket number 8N7025, ensuring wide applicability across different engine models and equipment types, including 2004-2007 model year 3126-powered machinery. For users replacing worn or damaged injectors in 3126 series engines, these common numbers provide unparalleled convenience, enabling quick identification of the correct replacement part, minimizing equipment downtime, and reducing overall maintenance costs, while aligning with the reliability requirements of genuine injectors.

3. Core Performance Features

The core performance of the 169-7408 injector focuses on precision, durability, easy installation, and multi-fuel adaptability—key attributes that ensure reliable operation in 3126 series engines, particularly 2004-2007 model year equipment. Its HEUI injection technology combines hydraulic and electronic control, delivering precise fuel delivery that promotes complete combustion, reduces fuel waste, and lowers exhaust emissions (CO, NOx), meeting global environmental standards and the efficiency requirements of modern heavy-duty engines. A standout feature is its compatibility with clamp part #169-7409, which ensures secure installation and eliminates the risk of loose connections or fuel leaks, a critical factor for long-term reliability. The TiN coated plungers and high-speed steel components with hard chrome plating address the common issue of wear in harsh industrial, construction, and agricultural working conditions, significantly extending the injector’s service life and avoiding the power and fuel efficiency losses associated with reverse-engineered aftermarket brands. The high-sensitivity solenoid valve ensures rapid response to engine operating changes, maintaining stable performance even under heavy load and frequent load fluctuations. Additionally, the anti-clogging and multi-fuel adaptability design enhances its applicability in diverse regions and working environments, making it ideal for heavy-duty equipment powered by 3126 series engines.

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