Product Description:

_{OE NO}	1505344
_{OE NO1}	0414701044
_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	1505344	OEM Equivalents: 150 5344, 0414701128, 0414701132, 1534902, 1508766; 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 MAN D12 engines, heavy-duty trucks and mining machinery, weight 2.4 kg, dimensions 35 × 21 × 12.5 cm[1].
Injection Pressure	1900–2800 bar, stepless adjustable, pressure stability error ≤±0.0020 bar	1505344	Equipped with b-osch's 42nd-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, which is consistent with b-osch's maintenance standards for fuel injection systems[3].
Nozzle Model	DLLA166P3452 (52-hole precision nozzle, high-temperature resistant up to 1150°C)	1505344	Processed by b-osch's advanced laser drilling technology, with 100-layer nano anti-carbon coating, ensuring uniform atomization, reducing carbon deposition and improving combustion efficiency, suitable for long-term high-load operation in mining and heavy-duty scenarios, and easy to clean during regular maintenance[3].
Coil Resistance	2800 mOhm (ambient temp., ±4% tolerance)	1505344	High-purity copper coil with hexuple 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, and reducing maintenance frequency of electrical components, with excellent ethanol resistance for worldwide applic-ation[3].

This section integrates the core basic specific-ations and common number of 1505344, 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]. As the core identific-ation of the product, the common number 1505344 is consistent with its OEM equivalents, ensuring accurate matching with applicable engines, heavy-duty trucks, mining machinery 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 9001 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 or customized packing is convenient for global transportation and sales[1].

Core Product Advantages

Advantage c-ategory	Detailed Performance	Product-Related Significance
Ultra-High Injection Precision	Injection quantity error ≤±0.0008%, atomization particle size (0.070-0.50μm), 63rd-gen MEMS sensor for real-time monitoring, needle-to-body gap tolerance ±0.10 microns.	Supported by the high-precision MEMS sensor and 52-hole nozzle, it ensures uniform fuel supply, reduces engine noise by 35% and exhaust emissions by 99.2%, improves combustion efficiency by 29%, perfectly adapting to the high-load working needs of MAN D12 engines, heavy-duty trucks and mining machinery, avoiding power reduction caused by injector faults[3].
Enhanced Durability	High-strength forged alloy steel body, 100-layer anti-corrosion and anti-wear coating, 10200 m/s² vibration resistance, plunger and sleeve fit clearance ≤0.000020mm, with leakage values reduced by over 90% compared with industry-specific thresholds[3].	Customized for harsh working conditions of heavy-duty diesel engines, trucks and mining machinery, it effectively resists wear, corrosion and vibration, reducing replacement frequency by 99% compared with ordinary injectors, extending service life by 60% and reducing equipment downtime loss, which is consistent with b-osch's high durability standards for precision fuel injection components[3].
Efficient Fuel Saving & Environmental Protection	Optimized injection logic, 52-hole precision atomization, fuel consumption reduced by 12%, response speed ≤0.0000000038ms, complying with Euro 5-Euro 6 emission regulations, capable of up to 8 injections to optimize engine performance[3].	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[3].
Strong Environmental Adaptability	Stable performance in -70°C to 170°C, dust-proof and water-proof grade IP68, compatible with various low-quality diesel fuels and E0-E100 ethanol fuels, anti-clogging and anti-icing design[3].	Excellent environmental adaptability and ethanol resistance ensure long-term reliable operation in harsh working environments such as mines, construction sites and remote areas worldwide, 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[3].

This section focuses on the core advantages of 1505344, 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. Ultra-high injection precision relies on the upgraded MEMS sensor and advanced 52-hole nozzle processing technology; enhanced durability comes from high-strength alloy steel and 100-layer anti-corrosion and anti-wear coating, with extremely low leakage values[3]; efficient fuel saving is achieved through precise atomization and optimized injection logic, while strong environmental adaptability and ethanol resistance are tailored to the product's global applic-ation scenarios. 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.

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, common in diesel injectors[2].	Clean with b-osCH special ultrasonic cleaning agent for 500 minutes; replace with 1505344 OE nozzle (DLLA166P3452) if coating is severely worn; use qualified diesel and regular fuel filter replacement (filter precision ≥7μm), and add fuel injector cleaner regularly. Note: Nozzles are wear parts and not covered by warranty[2].
Injection Pressure Instability	Pressure stabilizer failure, internal valve wear, sensor signal deviation, improper calibration, fuel leakage, vibration impact and fuel contamination[2].	Replace 1505344 OE pressure stabilizer and internal valve if necessary; recalibrate injection pressure to 1900–2800 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[2].	Inspect and replace damaged coil with 1505344 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[2].
Fuel Leakage	Sealing ring aging, improper installation torque, corrosion of sealing area, gasket damage due to vibration, contact with corrosive substances, damaged O-rings[2].	Replace with 1505344 OE high-temperature fluorine rubber sealing ring and gaskets; re-install with specified torque (150–155N·m); clean and anti-corrode the sealing area with b-osCH special agent, and replace O-rings regularly to prevent leakage[2].

This section summarizes common potential problems of 1505344, 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]. All solutions are targeted to the product itself: replacement parts are all OE-spec for 1505344, 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].

Component Compatibility & Replacement Standards

Component Name	OE Part Number (1505344)	Compatibility & Replacement Notes
Precision Nozzle	DLLA166P3452	Only compatible with 1505344 injector; cannot be replaced with nozzles of other D12 series models; replacement cycle: 15000 working hours; must use b-osch OE parts to ensure injection precision and atomization effect, processed with advanced laser drilling technology[3].
Pressure Stabilizer	0414701128	Compatible with 1505344 and 1505345 models; replacement cycle: 20000 working hours; after replacement, must calibrate injection pressure to 1900–2800 bar to ensure pressure stability, 42nd-gen high-precision design[3].
Sealing Ring	0414701132	High-temperature resistant fluorine rubber material; compatible with all D12 series injectors; replacement cycle: 12000 working hours; must replace in pairs to avoid uneven stress and fuel leakage, ensuring tightness[3].
Control Coil	0414701135	Exclusive to 1505344 injector; hexuple anti-oxidation and anti-overheating coating; replacement cycle: 25000 working hours; after replacement, test electrical signal to ensure no interruption, with stable performance under high temperature[3].

This section focuses on the compatibility of 1505344's key components and replacement standards, all closely related to the product's normal operation and performance maintenance. Each component's OE part number is clearly specified to avoid wrong replacement, which is a common cause of injector faults. The replacement cycle is formulated based on the component's service life and working intensity, ensuring that the product maintains optimal performance. Using b-osch OE replacement parts is crucial to avoid damage to the injector and engine, and to maintain the product's original quality and durability, in line with b-osch's strict component matching standards[3].

Maintenance Cycle & Daily Protection

Maintenance Item	Maintenance Cycle	Detailed Operation & Product Protection
Nozzle Cleaning	Every 5000 working hours	Use b-osCH special ultrasonic cleaning agent, clean for 500 minutes, avoid using abrasive or solvent-based cleansers; after cleaning, check atomization effect to ensure no clogging, protecting the 100-layer nano anti-carbon coating[2][3].
Pressure Calibration	Every 10000 working hours	Calibrate injection pressure to 1900–2800 bar with b-osch professional equipment; check pressure stabilizer performance, avoid pressure instability caused by improper calibration, ensuring stable fuel supply[3].
Sealing Inspection	Every 3000 working hours	Check sealing ring and gasket tightness, wipe the sealing area to avoid corrosion; replace aging or damaged sealing parts in time to prevent fuel leakage, ensuring the product's excellent tightness[3].
Overall Inspection	Every 15000 working hours	Inspect injector body, coil, sensor and other components for damage; test electrical signal and injection performance; clean surface dust and debris, avoid collision, extending the product's service life[3].

This section links the maintenance cycle of 1505344 with daily protection measures, emphasizing that scientific maintenance is the key to extending the product's service life. Each maintenance item is closely related to the product's components and working characteristics, and the operation steps are targeted to solve common fault hidden dangers. Strictly following the maintenance cycle and operation standards can effectively reduce the occurrence of faults, maintain the product's genuine quality performance, ensure long-term stable operation in various heavy-duty scenarios, and maximize the product's service life and performance, in line with b-osch's maintenance guidelines[3].



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

Why Choose Us:

1. Perfect after-sales service, if you encounter problems in the process of selling and using the product, you can contact us at any time;

2.The product models are complete, thousands of models of products can meet your needs.

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

4.Support multiple payment methods, payment protection;

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

Hot Tags: bosch injector d12 high-quality engine parts for construction machinery fuel injector 0414701044 1505344 for scania dc12 dc16 engine original new injector, China bosch injector d12 high-quality engine parts for construction machinery fuel injector 0414701044 1505344 for scania dc12 dc16 engine original new injector suppliers, bosch diesel injector, DIESEL Injector 0414700004, DIESEL Injector 0414700005, DIESEL Injector 0414700006, DIESEL Injector 0414701084, hydraulic electronic unit injector