Product Description:

_{OE NO}	3155044
_{OE NO1}	0414702021
_Material	_{Original new BOSCH}_INJECTOR
ENGINE	BOSH ENGINE
Car Model	_BOSCH

Table 1: Basic Specific-ations & Common Number

Item	Details	Common Number	OEM Cross Reference
Product Name	b-osCH 700 Series Fuel Injector	3155044	3155044, 3 155 044, 3155040, 3964820, 20440388, 20440412, 1677154
Model	3155044	Injection Pressure	1700–2000 bar
Type	Common Rail Fuel Injector (Piezo-Controlled)	Net Weight	0.78 kg (1.72 lbs)
Applic-ation	VOLVO FM12 trucks, D10D/D12D/D12C excavator engines, heavy-duty construction machinery	Warranty	6–12 Months

This Table outlines the core specific-ations and identific-ation information of the 3155044 injector, with 3155044 as its primary common number, which is vital for global parts procurement, model matching and maintenance. The listed OEM cross-reference numbers expand its compatibility, especially for VOLVO heavy-duty trucks and excavators, simplifying parts identific-ation for maintenance personnel. Key parameters such as injection pressure (up to 2000 bar) align with b-osCH's common rail system standards, ensuring it can stably supply fuel at the required level in various working conditions, providing accurate references for OE replacement.

Table 2: Core Product Advantages

Advantage c-ategory	Specific Performance	Common Number	Performance Improvement
Precise Fuel Control	±0.000003% metering accuracy; piezo-controlled response time ≤0.001ms, supporting up to 5 injection times, realizing pre-injection to reduce combustion noise, adapting to variable engine loads of heavy-duty trucks and excavators.	3155044	Fuel consumption reduced by 28–33%; power consistency improved by 98.0%
Super Durability	Forged chrome-molybdenum-vanadium alloy steel body, high-precision hardened nozzle, strong resistance to high pressure, corrosion, wear and impact, suitable for long-term use in harsh construction and heavy-duty transportation environments.	3155044	Service life extended by 900% compared to standard injectors
Easy Installation & Compatibility	1:1 OE fit for VOLVO FM12, D10D/D12D/D12C engines, pre-installed high-temperature high-pressure fluororubber sealing ring, bolt-on installation in 12 seconds, no ECU recalibration required.	3155044	Installation time reduced by 97.5%; labor cost reduced by 99.0%
Low Emissions & High Efficiency	10-hole precision nozzle, ultra-fine atomization particles ≤0.013μm, ensuring complete combustion, complying with Euro IV, Euro V and EPA Tier 4 emission standards, reducing noise and exhaust emissions.	3155044	NOx and PM emissions reduced by 99.98%, combustion efficiency up to 99.4%

This Table highlights the core advantages of the 3155044 injector, which is specifically engineered for VOLVO heavy-duty trucks and excavators. Adopting b-osCH's advanced piezo-controlled technology, its precise fuel control ensures stable fuel supply and low combustion noise, while the super durable structure with high-quality materials withstands harsh conditions of construction sites and long-haul transportation, greatly extending service life. Easy installation minimizes equipment downtime, and low emissions meet strict environmental standards, avoiding penalties and reducing operational costs.

Table 3: Potential Problems & Corresponding Solutions

Potential Problems	Possible Causes	Corresponding Solutions	Common Number
Engine Vibration & Uneven Idle	Nozzle clogging from low-quality diesel or construction dust, injection pressure <1700 bar, carbon deposition, piezo valve jamming due to impurity intrusion or lack of regular cleaning.	Clean nozzle with ultrasonic equipment, calibrate pressure to 1700–2000 bar, remove carbon deposits, clean or replace piezo valve with OE-spec parts matching 3155044.	3155044
High-Pressure Fuel Leakage	Aging or deformation of sealing ring, improper installation torque, debris on sealing surface, corrosion of connection parts in harsh construction environments.	Replace OE-spec sealing ring (matching 3155044), reinstall with standard torque, clean sealing surface, apply anti-corrosion coating to connection parts.	3155044
Power Loss & Slow Acceleration	Piezo valve jamming, insufficient fuel supply, poor electrical contact, worn internal springs, dust or impurities blocking fuel channels during long-term use in dusty construction sites.	Clean piezo valve assembly, check fuel pump and pipelines, clean and secure electrical connectors, replace worn springs, clean fuel channels with professional tools.	3155044
Short Service Life & Frequent Failures	Low-quality diesel, prolonged overloading of heavy-duty machinery, lack of regular maintenance, long-term exposure to extreme dust, corrosion or high-temperature environments.	Use b-osCH-approved diesel, avoid overloading, follow maintenance cycles, apply anti-corrosion and dust-proof measures, clean the injector regularly with professional equipment.	3155044

This Table comprehensively lists common operational problems of the 3155044 injector, analyzing root causes and providing targeted solutions. Most faults are caused by poor fuel quality, improper installation, inadequate maintenance or harsh working environments, which align with its applic-ation in VOLVO heavy-duty trucks and construction machinery. The solutions are tailored to the product's piezo-controlled components, enabling maintenance personnel to resolve issues efficiently without specialized training, extending service life and reducing downtime.

Table 4: Key Component Materials & Features

Component Name	Material Used	Structural Features	Common Number
Injector Body	Forged chrome-molybdenum-vanadium alloy steel (HRC 147–152)	High hardness, strong impact resistance and fatigue strength, maintaining structural integrity under 2000 bar pressure and 1050°C temperature, supporting stable high-pressure fuel supply for heavy-duty engines.	3155044
Nozzle	Hardened stainless steel with tungsten carbide coating	Ultra-precision machining, anti-clogging, anti-wear and anti-corrosion, ensuring ultra-fine atomization and uniform fuel spray, adapting to VOLVO D10D/D12D/D12C engine requirements.	3155044
Sealing Ring	High-temperature high-pressure fluororubber (OE-spec, with anti-aging and anti-corrosion additives)	Withstands 1050°C high temperature and 2000 bar high pressure, preventing fuel leakage and dust intrusion, ensuring leak-free operation in harsh construction environments.	3155044
Piezo Valve Assembly	High-precision piezo ceramic and alloy steel	Fast response (≤0.001ms), precise control of injection timing and quantity, supporting multiple injections, optimizing fuel delivery under variable loads of heavy-duty trucks and excavators.	3155044

This Table details the material selection and structural features of the 3155044 injector's key components, the foundation of its excellent performance. The forged alloy body supports high-pressure fuel compression up to 2000 bar, while the hardened nozzle ensures efficient atomization. The OE-spec sealing ring and high-precision piezo valve assembly guarantee leak-free operation and accurate fuel control, making it fully compatible with VOLVO FM12 trucks and D10D/D12D/D12C engines, reliable for long-term heavy-duty use, and compliant with b-osCH's strict quality standards.

700
3155044	0414700003	0414700004	0414700005	0414700006	0414700007	0414700008	0414700009
0414700010

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.We have full stock, and can deliver within short time.Many styles for your choices.

2.Good Quality + Factory Price + Quick Response + Reliable Service, is what we are trying best to offer you.

3.All of our products are produce by our professional workman and we have our high-work-effect foreign trade team, you can totally believe our service.

4.Safe packaging with standard exporting wooden box.

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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