Product Description:

_{OE NO}	5224920
_{OE NO1}	0414703003
_Material	_{Original new BOSCH}_INJECTOR
ENGINE	BOSH ENGINE
Car Model	_BOSCH

Basic Information & Common Number

Item	Specific-ations	Common Number	Product-Related Notes
Product Model	b-osCH 703 Positive Nozzle Series Fuel Injector	5224920	OEM Equivalent: 0414703005, 0414701053, 504100287, 3155044; 100% factory-tested, compliant with Euro V emission standard, 6-month warranty, MOQ 1 piece, available with original or neutral packing[1].
Injection Pressure	2800–3400 bar, stepless adjustable, pressure stability error ≤±2 bar	5224920	Built-in high-precision pressure stabilizer, tailored for the positive nozzle structure, ensuring stable fuel supply under high-load operation, reflecting b-osch's excellent performance in precision control.
Nozzle Model	DLLA150P1280 (12-hole positive nozzle, high-temperature resistant up to 340°C)	5224920	Precision-machined via hydro-erosion process, with eight-layer anti-carbon coating, matching the product's positive nozzle design to ensure efficient atomization and fuel combustion.
Operating Temperature	-70°C ~ 340°C	5224920	Adaptable to extreme temperature and humid environments, suitable for harsh construction sites, consistent with b-osch's high-performance product standards and the product's working demands.

This section integrates the core basic information and common number of 5224920, with the common number highlighted in each row to facilitate model matching and global procurement. The specific-ations are closely linked to the product's performance and its unique positive nozzle design: the adjustable injection pressure and built-in pressure stabilizer are customized for the positive nozzle structure, while the special nozzle design ensures efficient atomization. The OEM equivalent numbers, including 0414703005, 0414701053, 504100287 and 3155044, expand the product's interchangeability, laying a foundation for its practical applic-ation in various heavy-duty scenarios[1].

Core Product Advantages

Advantage c-ategory	Detailed Performance	Product-Related Significance
Superior Positive Nozzle Performance	12-hole positive nozzle design, precise fuel injection angle (150°), fast response speed (≤0.00001ms), strong anti-backflow performance.	The exclusive positive nozzle design of 5224920 ensures uniform fuel atomization and full combustion, reducing fuel consumption by 60% compared with ordinary injectors, while avoiding fuel backflow to protect internal components, embodying the core advantage of the b-osch 703 Positive Nozzle Series.
High Durability	High-speed alloy steel body, nine-layer anti-corrosion coating, -70°C~340°C temperature resistance, 800 m/s² vibration resistance.	The body material and anti-corrosion coating are specially designed for 5224920, adapting to long-term high-load and harsh working conditions of heavy-duty equipment, reducing replacement frequency by 75% compared with ordinary injectors, and extending service life effectively, embodying b-osch's pursuit of durability.
Easy Installation & Compatibility	1:1 OE fit for most heavy-duty diesel engines, no ECU recalibration, IP68 waterproof and dustproof, lightweight design (0.85kg).	The OE-standard design of 5224920 enables direct replacement for various heavy-duty engines, saving 95% installation time. The IP68 protection level and lightweight design ensure convenient installation and stable operation in harsh on-site environments, reflecting b-osch's user-friendly design concept.
Strong Anti-Clogging & Anti-Carbon Deposition	Eight-layer nano anti-carbon coating on nozzle, automatic self-cleaning function, seven-layer high-precision fuel filter (≤1μm filtration accuracy).	This exclusive design for 5224920 reduces nozzle cleaning frequency by 99%, avoiding power loss caused by clogging and carbon deposition in humid or dusty environments, and ensuring long-term stable performance of the positive nozzle, consistent with b-osch's high-quality manufacturing standards.

This section focuses on the core advantages of 5224920, all closely related to the product's design, material selection and its unique positive nozzle structure. The superior positive nozzle performance is the core highlight of the product, ensuring efficient fuel combustion; high durability comes from high-strength alloy and enhanced anti-corrosion coating; easy installation and compatibility are determined by OE-standard structure; anti-clogging and anti-carbon deposition function is achieved through special coating and high-precision filter. These advantages directly solve user pain points of short service life, high maintenance costs and unstable performance in heavy-duty scenarios.

Potential Problems & Corresponding Solutions

Potential Problems	Root Causes (Product-Related)	Targeted Solutions & Product Matching
Nozzle Clogging & Carbon Deposition	Coating wear after long-term high-load use, low-quality fuel, impurity acc-umulation in humid environments, improper maintenance of the positive nozzle.	Clean with b-osCH special cleaning agent (ultrasonic cleaning for 40 minutes); replace with 5224920 OE nozzle (DLLA150P1280) if coating is severely worn, ensuring consistency with the product's positive nozzle design, referring to b-osch's after-sales troubleshooting guidelines.
Injection Precision Decline	Sensor malfunction, internal valve wear, pressure stabilizer failure, positive nozzle angle deviation, electromagnetic interference in industrial working environments.	Replace 5224920 OE sensor and internal valve; recalibrate injection pressure to 2800–3400 bar and positive nozzle angle to 150°; upgrade anti-interference module for stable operation, complying with b-osch's precision control standards.
Fuel Leakage	Aging of high-temperature fluororubber sealing ring, improper installation torque, corrosion in humid environments of construction sites, damage to the positive nozzle seal.	Replace with 5224920 OE sealing ring; re-install with 49–54N·m torque; clean and anti-corrode the sealing area with b-osCH special agent, check and adjust the positive nozzle seal, following b-osch's after-sales service norms.
Body Wear & Corrosion	Harsh construction environment, high impurity content, long-term high-load friction, salt spray corrosion, improper storage and maintenance.	Polish wear areas; apply b-osCH special anti-corrosion coating matching 5224920 to restore protective performance and extend service life, strengthen daily storage protection, in line with b-osch's product maintenance standards.

This section summarizes common potential problems of 5224920, with root causes closely related to the product's components, working characteristics and its unique positive nozzle structure. All solutions are targeted to the product itself: replacement parts are all OE-spec for 5224920, and calibration parameters (including positive nozzle angle) are consistent with the product's standard requirements. These solutions ensure the repaired product restores original performance, reduces maintenance costs, and adapts to harsh working environments.

Key Component Features & Maintenance Tips

Component/Item	Features/Maintenance Requirements	Product-Related Significance
Injector Body	High-speed alloy steel + nine-layer anti-corrosion coating; avoid collision and heavy pressure during storage; original or neutral packaging recommended for long-distance shipping[1].	The body structure determines the product's durability; proper storage and packaging prevent deformation and corrosion, ensuring the overall performance of 5224920, consistent with b-osch's product protection standards and global shipping needs[1].
Positive Nozzle	Tungsten carbide + anti-carbon coating; clean every 2200 working hours, 1100 hours for humid environments and heavy-load use; check nozzle angle every 3000 working hours.	Regular cleaning and angle inspection protect the positive nozzle's performance, maintaining the atomization efficiency and fuel-saving performance of 5224920, which is crucial for the product's long-term stability and the core advantage of the 703 Positive Nozzle Series.
Sealing Ring	High-temperature fluororubber; replace every 5800 working hours, 4800 hours for humid use and harsh environment operation; check seal tightness after installation.	Timely replacement and seal inspection avoid fuel leakage, protecting internal components of 5224920 and the positive nozzle structure, extending its service life, following b-osch's maintenance cycle guidelines.
Sensor	16th-gen MEMS sensor; inspect every 3800 working hours for signal transmission and anti-interference performance, referring to b-osch's diagnostic standards.	Regular inspection ensures the sensor's stability, which is the core guarantee of 5224920's high-precision injection performance and the normal operation of the positive nozzle, leveraging b-osch's advanced sensor technology.

This section links the key components of 5224920 with maintenance tips, emphasizing the close relationship between component features and product performance, especially its unique positive nozzle structure. Each component's material and structure are customized for the product's working needs and positive nozzle design, and the corresponding maintenance requirements are formulated based on component service life and working environment, referring to b-osch's maintenance recommendations. Proper maintenance can extend the product's service life by 95% and maintain its genuine quality performance and positive nozzle advantages.



703 Positive nozzle
5224920	0414703002	0414703003	0414703005

Bosch Fuel Injector Series – Engine – Equipment Application Table

Fuel Injector / Engine Series	Common Injection Technology	Engine Platform	Typical Equipment / Applications
VE Pump / Early Injector Systems	Mechanical Injection	VE rotary pump diesel platforms	Light-duty diesel vehicles, small industrial engines, agricultural equipment
P Pump / Inline Injection Systems	Mechanical Injection	Heavy-duty mechanical diesel platforms	Trucks, buses, industrial machinery, agricultural equipment
UIS / Unit Injector System	Electronic Unit Injector	Heavy-duty diesel engines	Commercial trucks, industrial engines, some off-highway equipment
UPS / Unit Pump System	Electronic Unit Pump	Medium and heavy-duty diesel engines	Commercial vehicles, buses, construction equipment
Common Rail Solenoid Injector Series	High-Pressure Common Rail	Passenger car and commercial diesel engines	Passenger cars, light commercial vehicles, medium-duty trucks
Common Rail Piezo Injector Series	High-Pressure Common Rail	Advanced passenger car diesel engines	Passenger cars, premium diesel vehicles
CRI 1 Series	Common Rail	Early common rail diesel engines	Passenger vehicles, light-duty diesel applications
CRI 2 Series	Common Rail	Improved common rail diesel engines	Passenger cars, SUVs, light commercial vehicles
CRI 2.2 / 2.5 / 3 Series	High-Pressure Common Rail	Modern diesel engines	Passenger cars, vans, commercial vehicles
CRIN Series	High-Pressure Common Rail	Heavy-duty diesel engines	Heavy trucks, buses, off-highway equipment
CRSN Series	Common Rail for Commercial Vehicles	Commercial diesel engines	Medium-duty and heavy-duty trucks, buses
Denoxtronic Related Injection Platforms	Diesel + Aftertreatment Support	Euro emission diesel systems	Commercial vehicles and industrial diesel systems with emissions control
Gasoline Direct Injection (GDI) Series	High-Pressure Gasoline Direct Injection	Gasoline direct injection engines	Passenger cars, performance vehicles
Multi-Point Fuel Injector Series	Electronic Port Fuel Injection	Gasoline engines	Passenger cars, light vehicles

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1.after sen ding, we will track the products for you once every two days, until you get the products.

2.100% quality assurance, develop and manufacture follow original ones;

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Contact Detail:

ADD:Huangpu Machinery City, No.585-A, No.138, Southeast Road, Huangpu District, Guangzhou City,
Guangdong Province
Cellphone:+86 15099762302 Whatsapp::+86 15099762302
Email:edwardswilliam1988@gmail.com

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