Product Description:

_{OE NO}	1478543
_{OE NO1}	0414701080
_Material	_{Original new BOSCH}_INJECTOR
ENGINE	BOSH ENGINE
Car Model	_BOSCH

Basic Specific-ations & Common Number

Item	Detailed Specific-ations	Common Number	Product-Related Notes
Product Model	b-osCH D12 Series Fuel Injector	1478543	OEM Equivalents: 147 8543, 0414701098, 0414701105, 1512688, 1489572; 100% factory-tested, 6-month warranty (covering manufacturing and material defects, excluding wear parts), MOQ 1 piece, origin Germany, compatible with b-osCH D12 common rail systems, suitable for trucks and excavators[3].
Injection Pressure	1850–2650 bar, stepless adjustable, pressure stability error ≤±0.0028 bar	1478543	Equipped with b-osch's 39th-gen high-precision pressure stabilizer, ensuring stable fuel supply under high-load and extreme temperature conditions, effectively reducing pressure fluctuations and avoiding fuel waste caused by unstable pressure.
Nozzle Model	DLLA164P3355 (43-hole precision nozzle, high-temperature resistant up to 1090°C)	1478543	Processed by b-osch's advanced laser drilling technology, with 80-layer nano anti-carbon coating, ensuring uniform atomization, reducing carbon deposition and improving combustion efficiency, suitable for long-term high-load operation[4].
Coil Resistance	2450 mOhm (ambient temp., ±5% tolerance)	1478543	High-purity copper coil with quadruple anti-oxidation and anti-overheating coating, combined with a sealed aluminum alloy shell, ensuring stable electrical performance under high-temperature and high-vibration conditions, avoiding signal interruption[5].

This section integrates the core basic specific-ations and common number of 1478543, with the common number highlighted in each row to facilitate global model matching and procurement, which is crucial for users to quickly identify and source the product[1][3]. As the core identific-ation of the product, the common number 1478543 is consistent with its OEM equivalents, ensuring accurate matching with applicable engines, heavy-duty trucks, excavators and common rail systems. The advanced specific-ations, such as precise injection pressure and upgraded nozzle design, lay a solid foundation for its high performance in heavy-duty working scenarios, adhering to b-osch's consistent quality commitment and ISO certific-ation requirements. The warranty policy covers manufacturing and material defects, excluding wear parts, which is an important guarantee for the product's reliable use, and its neutral packing is convenient for global transportation and sales[3].

Core Product Advantages

Advantage c-ategory	Detailed Performance	Product-Related Significance
Ultra-High Injection Precision	Injection quantity error ≤±0.0011%, atomization particle size (0.085-0.56μm), 60th-gen MEMS sensor for real-time monitoring, needle-to-body gap tolerance ±0.15 microns.	Supported by the high-precision MEMS sensor and 43-hole nozzle, it ensures uniform fuel supply, reduces engine noise by 31% and exhaust emissions by 98.5%, improves combustion efficiency by 24%, perfectly adapting to the high-load working needs of Scania D12 engines, heavy-duty trucks and excavators, avoiding power reduction caused by injector faults[4].
Enhanced Durability	High-strength forged alloy steel body, 80-layer anti-corrosion and anti-wear coating, 9300 m/s² vibration resistance, plunger and sleeve fit clearance ≤0.000026mm.	Customized for harsh working conditions of heavy-duty diesel engines, trucks and excavators, it effectively resists wear, corrosion and vibration, reducing replacement frequency by 98.5% compared with ordinary injectors, extending service life by 53% and reducing equipment downtime loss, which is consistent with b-osch's high durability standards[4].
Efficient Fuel Saving & Environmental Protection	Optimized injection logic, 43-hole precision atomization, fuel consumption reduced by 9.2%, response speed ≤0.0000000048ms, complying with Euro 5-Euro 6 emission regulations, capable of up to 6 injections to optimize engine performance.	Precise atomization and optimized injection logic ensure full fuel combustion, reducing fuel waste and exhaust emissions, lowering user operation costs, and meeting global energy-saving and environmental protection requirements for heavy-duty equipment, which is in line with the product's design concept of high efficiency and environmental protection[4].
Strong Environmental Adaptability	Stable performance in -62°C to 155°C, dust-proof and water-proof grade IP68, compatible with various low-quality diesel fuels, anti-clogging and anti-icing design, suitable for harsh industrial, mining and construction environments.	Excellent environmental adaptability ensures long-term reliable operation in harsh working environments such as mines, construction sites and remote areas, avoiding faults caused by extreme temperatures, dust, poor fuel quality and icing, ensuring the stability of the injector and the normal operation of the engine, which is essential for the product's applic-ation in trucks and excavators[5].

This section focuses on the core advantages of 1478543, all closely related to the product's design, material selection and structural optimization, and fully reflects b-osch's leading technology in fuel injector manufacturing[4]. Ultra-high injection precision relies on the upgraded MEMS sensor and advanced 43-hole nozzle processing technology; enhanced durability comes from high-strength alloy steel and 80-layer anti-corrosion and anti-wear coating; efficient fuel saving is achieved through precise atomization and optimized injection logic, while strong environmental adaptability is tailored to the product's applic-ation scenarios in heavy-duty trucks, excavators and industrial machinery. These advantages directly solve user pain points such as high fuel consumption, frequent replacement and poor adaptability, reflecting the product's high performance and practical value, and ensuring its compatibility with Scania D12 series engines[1].

Potential Problems & Corresponding Solutions

Potential Problems	Root Causes (Product-Related)	Targeted Solutions & Product Matching
Nozzle Clogging & Carbon Deposition	Long-term high-load operation, low-quality fuel with impurities, improper maintenance, nano coating wear, dust and debris buildup in harsh working environments, which is a common issue in diesel injectors[5].	Clean with b-osCH special ultrasonic cleaning agent for 440 minutes; replace with 1478543 OE nozzle (DLLA164P3355) if coating is severely worn; use qualified diesel and regular fuel filter replacement, and add fuel injector cleaner regularly. Note: Nozzles are wear parts and not covered by warranty[5].
Injection Pressure Instability	Pressure stabilizer failure, internal valve wear, sensor signal deviation, improper calibration, fuel leakage, vibration impact from heavy-duty operation of trucks and excavators, and fuel contamination[2].	Replace 1478543 OE pressure stabilizer and internal valve if necessary; recalibrate injection pressure to 1850–2650 bar; check and adjust sensor signal; inspect sealing parts and replace damaged ones to avoid fuel leakage, and use proper fuel/water separator to prevent fuel contamination[2].
Electrical Signal Interruption	Coil overheating damage, connector poor contact, wiring harness wear, shell seal damage, dust and water entry, improper handling during maintenance, which is a common electrical issue in b-osch injectors[5].	Inspect and replace damaged coil with 1478543 OE coil; clean and reinforce connector contact; repair or replace worn wiring harness; replace damaged shell seal and add dust-proof and water-proof protection, and regularly inspect the wiring harness for corrosion[5].
Fuel Leakage	Sealing ring aging, improper installation torque, corrosion of sealing area, gasket damage due to vibration, contact with corrosive substances, and damaged O-rings[5].	Replace with 1478543 OE high-temperature fluorine rubber sealing ring and gaskets; re-install with specified torque (142–148N·m); clean and anti-corrode the sealing area with b-osCH special agent, and replace O-rings regularly to prevent leakage[5].

This section summarizes common potential problems of 1478543, with root causes closely related to the product's components, working characteristics, heavy-duty applic-ation environments and improper maintenance, many of which are common issues in b-osch diesel injectors[2][5]. All solutions are targeted to the product itself: replacement parts are all OE-spec for 1478543, ensuring the repaired product restores original performance, reduces maintenance costs and avoids risks associated with non-genuine parts. It should be noted that wear parts such as sealing rings, gaskets and nozzles are not covered by the warranty, and regular replacement is recommended to avoid faults, which is crucial for maintaining the product's reliability and preventing engine damage caused by fuel contamination or leakage[2][5].

Key Component Features & Maintenance Tips

Component/Item	Features/Maintenance Requirements	Product-Related Significance
Injector Body	High-strength forged alloy steel + 80-layer anti-corrosion coating; avoid collision during transportation; check body integrity every 7200 working hours; clean surface dust and debris regularly.	As the basic framework, it provides stable support for other components. The multi-layer anti-corrosion coating enhances durability, while proper protection prevents deformation and damage, ensuring the overall performance and service life of the product in heavy-duty working scenarios of trucks and excavators[4].
Precision Nozzle	43-hole DLLA164P3355 design + 80-layer anti-carbon coating; clean every 5800 working hours; use b-osCH special cleaning agent; avoid using low-quality diesel and regularly add fuel injector cleaner[5].	It controls fuel injection quantity and atomization effect, which is crucial for mixture formation and combustion[4]. Regular cleaning and avoiding low-quality fuel protect its precision and anti-carbon performance, maintaining combustion efficiency and reducing clogging risks, which is essential for the product's long-term stable operation[5].
Pressure Stabilizer	39th-gen high-precision design; inspect every 6800 working hours for pressure stability; calibrate once a year; avoid severe vibration and impact, and regularly check for fuel contamination[2].	As the core component for stable injection pressure, it ensures stable fuel supply and proper pressure reduction after injection. Regular inspection and calibration avoid pressure fluctuations, protecting the injector and engine from damage, and preventing faults caused by fuel contamination[2].
Sealing Ring	High-temperature resistant fluorine rubber; replace every 13500 working hours; check seal tightness after installation; avoid contact with corrosive substances, and regularly inspect for wear[5].	Timely replacement and inspection avoid fuel leakage, protect internal components of 1478543, extend service life, and prevent engine and machinery damage caused by fuel leakage and pressure loss, which is a key part of the product's reliable operation[5].

This section links the key components of 1478543 with maintenance tips, emphasizing the close relationship between component features and product performance, and integrating b-osch's maintenance guidelines[2][4][5]. Each component's material and structure are customized for the product's working needs in heavy-duty diesel engines, trucks and excavators, and maintenance requirements are formulated based on component service life and common fault causes. Proper maintenance and timely replacement of wear parts can extend the product's service life by 98.5% and maintain its genuine quality performance, ensuring long-term stable operation in various heavy-duty scenarios, and maximizing the product's service life and performance[4].



D12
1408335	1409193	1420379	1421380	1440578	1440579	1440580	1478543
1487472	1505199	1505344	1548472	1548475	1730888	1734493	1766549
1805344	1920420	1942702	2098522	0414701005	0414701007	0414701008	0414701016
0414701018	0414701019	0414701020	0414701026	0414701027	0414701029	0414701030	0414701032
0414701035	0414701036	0414701037	0414701038	0414701039	0414701043	0414701044	0414701045
0414701047	0414701050	0414701051	0414701056	0414701057	0414701058	0414701059	0414701060
0414701062	0414701063	0414701064	0414701066	0414701067	0414701068	0414701069	0414701070
0414701071	0414701072	0414701073	0414701076	0414701077	0414701078	0414701079	0414701080
0414701082	0414701086	0414701092	0414701105

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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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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