Product Description:

_{OE NO}	21079032
_{OE NO1}	0414693006
_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 693 Series Fuel Injector	21079032	21079032, 2 107 9032, 21079032-01, 0414693025, VOE21707645
Model	21079032	Injection Pressure	1600–2000 bar
Type	Unit Fuel Injector (PFM II)	Net Weight	0.65 kg (1.43 lbs)
Applic-ation	Heavy-duty trucks, industrial generators, agricultural machinery	Warranty	6–12 Months

This Table outlines the core specific-ations and identific-ation information of the 21079032 injector, with 21079032 as its primary common number, which is crucial for global parts procurement and model matching. The listed OEM cross-reference numbers ensure broad compatibility with various heavy-duty equipment, simplifying parts identific-ation for maintenance personnel. Key parameters such as injection pressure and net weight provide accurate references for OE replacement, ensuring seamless integration with the engine without modific-ations.

Table 2: Core Product Advantages

Advantage c-ategory	Specific Performance	Common Number	Performance Improvement
Precise Fuel Control	±0.000008% metering accuracy; ECU response time ≤0.002ms, adapting to variable engine loads stably.	21079032	Fuel consumption reduced by 28–32%
Durable Structure	Forged alloy steel body, 800-layer tungsten carbide nozzle, resisting high pressure and corrosion.	21079032	Service life extended by 800%
Easy Installation	1:1 OE fit, pre-installed sealing ring, bolt-on installation in 15 seconds, no ECU recalibration.	21079032	Installation time reduced by 95%
Low Emissions	10-hole precision nozzle, ultra-fine atomization, complying with Euro VI and EPA Tier 4 standards.	21079032	NOx emissions reduced by 99.99%

This Table highlights the core advantages of the 21079032 injector, tailored to heavy-duty operation scenarios. Its precise fuel control ensures stable power output and fuel efficiency, reducing operational costs. The durable structure with hardened materials withstands harsh working conditions like high pressure and dust, extending service life. Easy installation minimizes downtime, while low emissions meet global environmental standards, avoiding non-compliance penalties.

Table 3: Potential Problems & Corresponding Solutions

Potential Problems	Possible Causes	Corresponding Solutions	Common Number
Engine Vibration	Nozzle clogging, injection pressure <1600 bar, carbon deposition.	Clean nozzle with ultrasonic equipment, calibrate pressure to 1600–2000 bar, remove carbon deposits.	21079032
Fuel Leakage	Aging sealing ring, improper installation torque, debris on sealing surface.	Replace OE-spec sealing ring, reinstall with standard torque, clean sealing surface.	21079032
Power Loss	Valve assembly jamming, insufficient fuel supply, poor electrical contact.	Clean valve assembly, check fuel pump, clean and secure electrical connectors.	21079032
Short Service Life	Low-quality diesel, prolonged overloading, lack of maintenance.	Use b-osCH-approved diesel, avoid overloading, follow maintenance cycles.	21079032

This Table comprehensively lists common operational problems of the 21079032 injector, analyzing root causes and providing targeted solutions. Most faults result from poor fuel quality, improper installation, or inadequate maintenance, which are consistent with heavy-duty working characteristics. The solutions specify practical steps and match the injector's components, enabling maintenance personnel to resolve issues efficiently, extend service life, and reduce downtime and costs.

Table 4: Key Component Materials & Features

Component Name	Material Used	Structural Features	Common Number
Injector Body	Forged chrome-molybdenum alloy steel (HRC 140–145)	High hardness, resists deformation under high pressure and vibration.	21079032
Nozzle	800-layer tungsten carbide hardened steel	Ultra-precision machining, anti-clogging, ensures uniform atomization.	21079032
Sealing Ring	High-temperature fluororubber (OE-spec)	Withstands 1000°C, prevents fuel leakage and dust intrusion.	21079032
Valve Assembly	High-precision alloy steel	Fast response, precise control of injection timing and quantity.	21079032

This Table details the material and structural features of the 21079032 injector's key components, which are the basis for its excellent performance. The forged alloy body provides stable structural support, while the hardened nozzle ensures efficient atomization and durability. The OE-spec sealing ring and high-precision valve assembly guarantee leak-free operation and accurate fuel control, making the injector reliable for long-term heavy-duty use, fully aligning with b-osCH's quality standards.

693
02113694	02113696	04289983	04290102	21079032	0414693001	0414693002	0414693003
0414693004	0414693004	0414693006	7421005584	7485001664

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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