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C-ATerpillar 3116 Series Fuel Injector 20R-4179

A high-performance common rail fuel injector exclusively engineered for C-ATerpillar 3116 diesel engines, the 20R-4179 combines durable high-strength material construction, precise dimensional craftsmanship, and comprehensive after-sales support to meet the harsh operating demands of C-ATerpillar construction, industrial, and marine equipment—including excavators, wheel loaders, and marine generators. Below is a comprehensive breakdown across 6 detailed tables, each paired with product-specific descriptions tailored for global maintenance teams, parts suppliers, and equipment operators. All information is closely related to the product itself, with a focus on physical appearance, volume, and after-sales service, and generic numbers clearly presented in a dediC-ATed table.

1. Basic Product Information

This table outlines the core identity, compatibility, and quality standards of the 20R-4179 fuel injector, a critical replacement component engineered specifically for C-ATerpillar 3116 diesel engines. Available as genuine C-AT or premium aftermarket variants from trusted suppliers, it adheres to strict OEM specifiC-ATions and holds ISO 9001 and ISO/TS 16949 certifiC-ATions, guaranteeing seamless fitment and reliable operation across a wide range of C-ATerpillar equipment[2][5][10][11]. Constructed from high-strength alloy steel or high-speed steel with precision-ground internal components and a hardened nozzle tip, it is built to withstand the high pressure and thermal stress inherent in 3116 engine operation, ensuring durability and long-term performance in harsh construction, industrial, and marine environments[5][10][11]. Every unit undergoes rigorous pre-shipment testing to verify precise fuel delivery and zero leakage, eliminating defects right out of the box and ensuring consistent performance upon installation. As a direct replacement for the original 20R-4179 (with OEM numbers 20R4179 and CA20R4179), it maintains the performance standards required for C-AT 3116 engines, reducing unplanned downtime for critical equipment, with in-stock availability to meet urgent maintenance needs[1][5][11].

2. Physical Dimensions & Volume (Focus on Appearance)

The 20R-4179 injector features a rugged, compact physical design specifically optimized for the tight engine compartments of various C-AT equipment powered by 3116 engines, balancing durability with space efficiency and adhering to original size specifiC-ATions for the 20R-4179 model[12]. Its solid alloy steel or high-speed steel profile withstands severe vibration and mechanical stress during heavy-duty operation—critical for equipment used in construction, industrial, and marine appliC-ATions, such as excavators, wheel loaders, and marine generators[4][5][11]. The semi-matte black or silver body is coated with a specialized anti-corrosion and anti-carbon layer, preventing fuel residue buildup and damage from dust, moisture, saltwater (for marine use), and chemicals commonly encountered in field and marine operations. The polished metal nozzle tip, engineered to match C-AT 3116 atomization requirements, maintains dimensional precision and resists clogging, ensuring consistent fuel delivery under high pressure[4][10][11]. With a net weight ranging from 0.75 kg to 1.20 kg, it balances robustness and ease of handling during installation and replacement, suitable for professional maintenance teams. The weather-resistant connector bracket ensures reliable performance in wet, dusty, and marine environments, while precision-machined threads enable quick, secure mounting. The flexible packaging configuration (original or neutral options) optimizes global shipping and inventory management, with each unit packaged to protect critical components during transit[10][12].

3. Cross Reference & Generic Numbers

This table provides comprehensive cross-reference and generic number data for the 20R-4179 injector, a critical resource for global parts identifiC-ATion, ordering, and replacement, adhering to industry aftermarket cross-reference standards. The primary original part number, 20R-4179, directly corresponds to C-ATerpillar’s original equipment numbers (20R4179, CA20R4179), guaranteeing full fitment and compatibility with C-AT 3116 diesel engines[1][5][11]. The multi-hole nozzle confirms the precision nozzle specifiC-ATion, engineered to deliver optimal fuel atomization in C-AT 3116 fuel systems and perfectly matched to the 20R-4179 injector’s common rail design, ensuring efficient combustion and reliable performance[4][11]. The listed generic numbers—most notably OR8469, 418-8820, and 127-8207, with which 20R-4179 is directly interchangeable—are widely recognized in the global aftermarket, simplifying replacement sourcing for parts suppliers and field technicians[2][3][5][10][11]. Full interchangeability across compatible injector models and engines (3116) reduces inventory complexity and ensures flexible maintenance solutions for C-AT equipment operators, making it easier to source compatible parts in urgent situations. This cross-reference data ensures that users can accurately identify and order the correct injector, minimizing downtime for critical 3116-powered equipment like excavators and marine generators[4][5][11].

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