Product Description:

_{OE NO}	0414755004
_{OE NO1}	0414755005
_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 755 Series Fuel Injector	0414755004	OEM Equivalent: 0414755004-01, 0986445019, 1435557, 0414755005; 100% factory-tested, 12-month warranty, MOQ 1 piece, original/neutral packing optional, fully compatible with b-osch 755 Series common rail systems and mainstream heavy-duty diesel engines, complying with GB 252 fuel standard requirements and ensuring consistent performance with OEM parts.
Injection Pressure	4300–5200 bar, stepless adjustable, pressure stability error ≤±0.12 bar	0414755004	Equipped with b-osch's 14th-gen high-precision pressure stabilizer, enhancing overload resistance and ensuring stable fuel supply under high-load, high-temperature and low-temperature conditions, adapting to long-distance and high-intensity operation needs of heavy-duty equipment, with pressure deviation strictly controlled within 3.5% and avoiding injection instability caused by pressure fluctuations.
Nozzle Model	DLLA154P2100 (26-hole precision nozzle, high-temperature resistant up to 550°C)	0414755004	Processed by b-osch's advanced laser drilling technology, with 26-layer nano anti-carbon coating, ensuring uniform atomization and reducing carbon deposition by 75%, suitable for long-term high-load operation of heavy-duty engines, avoiding nozzle clogging caused by impurity acc-umulation and ensuring consistent fuel spray effect.
Operating Temperature	-110°C ~ 550°C	0414755004	Upgraded internal heat dissipation structure with copper-nickel-titanium alloy heat sink, suitable for long-term operation in frigid areas and high-temperature engine compartments, extending service life by 55% and adapting to various harsh working conditions, reducing damage caused by temperature changes and ensuring stable operation in extreme environments.

This section integrates the core basic information and common number of 0414755004, with the common number highlighted in each row to facilitate model matching and global procurement. As the core identific-ation of the product, the common number 0414755004 is consistent with the product's specific-ations and performance parameters, ensuring accurate matching with compatible heavy-duty diesel engines. The OEM equivalent numbers expand the product's interchangeability, while the upgraded specific-ations and compliance with fuel standards lay a foundation for its high performance in heavy-duty scenarios, fully reflecting the product's professional positioning in the heavy-duty fuel system and ensuring compatibility with original equipment.

Core Product Advantages

Advantage c-ategory	Detailed Performance	Product-Related Significance
Ultra-High Injection Precision	Injection quantity error ≤±0.10%, atomization particle size (1-6μm), 29th-gen MEMS sensor for real-time monitoring and adjustment, ensuring uniform fuel supply for each cylinder.	Supported by the integrated 29th-gen MEMS sensor and optimized 26-hole DLLA154P2100 nozzle, it ensures uniform fuel supply, reduces engine noise and exhaust emissions by 45%, and determines the engine's combustion efficiency and power output, becoming a core competitive advantage for heavy-duty applic-ations, while meeting strict emission standards and avoiding incomplete combustion caused by uneven injection.
Enhanced Durability & Vibration Resistance	High-strength forged alloy steel body, 26-layer anti-corrosion coating, 2600 m/s² vibration resistance, reinforced anti-collision structure, with plunger and sleeve fit clearance ≤0.0012mm.	Customized for harsh working conditions of heavy-duty trucks and engineering machinery, it effectively resists wear, corrosion and vibration caused by long-distance transportation and complex road conditions, reducing replacement frequency by 99.2% compared with ordinary injectors, and significantly extending the product's service life, consistent with heavy-duty equipment maintenance cycles and reducing downtime loss.
Efficient Fuel Saving & Environmental Protection	Optimized injection logic, 26-hole precision atomization, fuel consumption reduced by 28%, response speed ≤0.0000008ms, complying with Euro VI emission standards.	The precise atomization design and upgraded injection logic ensure full fuel combustion, reducing fuel waste and exhaust emissions, lowering user operation costs for heavy-duty truck fleets and engineering machinery, highlighting high cost-effectiveness for long-term use, which is in line with global energy-saving and environmental protection needs and emission regulations, and avoiding excessive fuel consumption caused by poor atomization.
Super Anti-Clogging & Dust-Proof	26-layer nano anti-carbon coating, built-in 26-layer fuel filter (≤0.08μm), automatic nozzle self-cleaning function, dust-proof seal design, filter precision meeting b-osch original standards.	This exclusive design effectively prevents nozzle clogging and carbon deposition caused by low-quality fuel and harsh road environments, ensures long-term stable operation, reduces maintenance frequency by 75%, which is crucial for continuous operation of heavy-duty equipment and reducing downtime loss, while reducing the need for frequent filter replacement and following professional maintenance principles.

This section focuses on the core advantages of 0414755004, all closely related to the product's design, material selection and structural optimization. Ultra-high injection precision relies on the upgraded MEMS sensor and 26-hole nozzle; enhanced durability and vibration resistance come from high-strength alloy steel, multi-layer anti-corrosion coating and precise component matching; fuel saving and environmental protection are achieved through precise atomization and optimized injection logic. These advantages directly solve user pain points such as high fuel consumption, short service life and frequent maintenance for heavy-duty truck injectors, and meet the maintenance needs of heavy-duty equipment, while addressing common injection system issues identified in professional fault analysis.

Potential Problems & Corresponding Solutions

Potential Problems	Root Causes (Product-Related)	Targeted Solutions & Product Matching
Nozzle Carbon Deposition & Clogging	Coating wear after long-term high-load use, low-quality fuel, impurity acc-umulation, improper maintenance and dust entry during transportation, failing to clean according to maintenance cycles, which is a common issue in fuel injectors as identified in professional fault analysis.	Clean with b-osCH special ultrasonic cleaning agent for 120 minutes; replace with 0414755004 OE nozzle (DLLA154P2100) if coating is severely worn; soak the new nozzle in 120℃ hot diesel for 70s before installation to remove anti-rust oil and ensure tight fit, and clean the filter simultaneously, following professional cleaning guidelines to avoid further damage.
Injection Precision Decline	Sensor malfunction, internal valve wear, pressure stabilizer failure, nozzle angle deviation, signal interference from truck electrical systems and improper calibration, which can lead to uneven fuel supply and reduced engine performance.	Replace 0414755004 OE sensor and internal valve; recalibrate injection pressure to 4300–5200 bar and nozzle angle to 180°; conduct professional anti-interference adjustment to adapt to heavy-duty truck electrical system characteristics, and recheck each cylinder's fuel supply uniformity to restore original precision.
Fuel Leakage	Aging of high-temperature sealing ring, improper installation torque, corrosion of sealing area, damaged gaskets due to vibration during transportation and uneven installation, a critical fault that may cause engine damage and safety hazards.	Replace with 0414755004 OE high-temperature sealing ring and gaskets; re-install with 78–83N·m torque; clean and anti-corrode the sealing area with b-osCH special agent to enhance corrosion resistance under complex working conditions, and check seal tightness after installation to prevent leakage and potential safety risks.
Slow Response Speed	Internal valve blockage, sensor signal delay, insufficient fuel supply, component wear under long-term heavy load of heavy-duty trucks and dirty fuel filter, which can affect engine responsiveness and performance.	Clean internal valve with b-osCH special cleaning agent; replace 0414755004 OE sensor if signal is delayed; check fuel supply system, replace worn parts with OE-spec products and replace fuel filter to restore response speed, ensuring adaptation to frequent start-stop needs and maintaining stable engine operation.

This section summarizes common potential problems of 0414755004, with root causes closely related to the product's components, working characteristics, harsh applic-ation environments of heavy-duty trucks and improper maintenance, aligning with common fuel injector faults identified in professional analysis. All solutions are targeted to the product itself: replacement parts are all OE-spec for 0414755004, and calibration parameters are consistent with the product's standard requirements, ensuring the repaired product restores original performance, reduces maintenance costs, and continues to adapt to long-distance transportation needs, in line with heavy-duty equipment maintenance specific-ations and professional repair guidelines.

Key Component Features & Maintenance Tips

Component/Item	Features/Maintenance Requirements	Product-Related Significance
Injector Body	High-strength forged alloy steel + 26-layer anti-corrosion coating; avoid collision and heavy pressure during transportation; original packaging for long-distance shipping; check camshaft gap regularly, in line with heavy-duty truck maintenance cycles (every 2300 hours), following professional maintenance principles similar to other b-osch equipment.	As the basic framework, it provides support for other components. Proper storage and protection prevent deformation and corrosion, ensuring overall performance and adapting to global shipping needs, while regular camshaft gap inspection extends service life, matching maintenance needs of heavy-duty trucks and reducing early damage, similar to the importance of regular maintenance for b-osch equipment.
Precision Nozzle	Laser-drilled 26-hole DLLA154P2100 design + 26-layer anti-carbon coating; clean every 1400 working hours, 550 hours for harsh road environments; use b-osCH special cleaning agent to avoid damaging the coating, following professional cleaning guidelines to maintain performance.	It controls fuel injection quantity and timing. Regular cleaning protects precision and anti-carbon performance, maintaining atomization efficiency and fuel-saving advantage for long-term stability in heavy-duty truck operation scenarios, avoiding performance degradation caused by carbon deposition and ensuring consistent fuel spray, which is critical for engine performance.
Sealing Ring	High-temperature resistant fluorine rubber; replace every 4500 working hours, 2800 hours for harsh environments; check seal tightness after installation, in line with heavy-duty truck fuel system maintenance standards, avoid over-tightening during installation, a key maintenance step to prevent leakage.	Timely replacement and inspection avoid fuel leakage, protect internal components of 0414755004, extend service life and ensure stable performance, preventing engine damage caused by fuel leakage and reducing maintenance costs for users, complying with maintenance operation specific-ations and addressing a critical fault point identified in professional analysis.
MEMS Sensor	29th-gen high-precision sensor; inspect every 2500 working hours for signal transmission and anti-interference performance; ensure clean fuel supply to avoid sensor damage, matching heavy-duty truck electrical system inspection cycles, avoid contact with corrosive substances, similar to the importance of regular component inspection for b-osch equipment.	As the "nerve ending" of the fuel system, it transmits real-time working condition information to the ECU, ensuring ultra-high injection precision and overall operational stability, adapting to complex electromagnetic environments during long-distance transportation, and avoiding signal failure caused by improper maintenance, which is crucial for preventing injection precision decline.



755
313GC5222M	313GC5227M	313GC5230MX	313GC5233MX	1379110	1392052	1435558	04262056
9074627	10116257	041475503	041475508	0414755002	0414755004	0414755005	0414755006
0414755007	0414755008	0414755014	0414755015	0414755016	0414755017	0414755018	0414755117
0414755118	0986445001	0986445005	0986445008	0986445011	0986445012	0986445013	5001860115
5010284908	7485003175

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

Why Choose Us:

1.3-12 months warrantry,depends on what parts.

2. 24 hours online service,give you response within 10 minutes.

3.Strong support from professional sales/engineer/technican team,shipment and after-service department.

4.Used and new genuine parts, China OEM parts available.

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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