|
Diesel Nozzle Fuel Injector 0445120274 51101006138 Common Rail Injector for Man Tgl
| MOQ: | 4 |
| Price: | US $55 |
| Payment Method: | L/C,D/A,D/P,T/T |
|
Product Name
|
High Quality Common Rail Diesel Fuel Injector
|
|
Place of Origin
|
Wuhan,China
|
|
Warranty
|
3 Months
|
|
Delivery time
|
3-15 Days, subject to the order quantity
|
|
Quality
|
100% Tested
|
|
Packing
|
Customer Requirement
|
|
Service
|
After-Sales Service
|
|
Size
|
Standard Size
|
|
Payment
|
TT,Trade Assurance,PayPal,Credit Card
|
|
Advantage
|
Perfect Fit
|
This high-precision, electronically controlled common-rail fuel injector assembly (Part No.: 0445120274 / 0 445 120 274; common cross-references and OE interchange numbers include 5263321, 5263321-NX, 0986435575, etc.) is engineered with meticulous craftsmanship. Designed primarily for ISDe/ISBe 6.7L and QSB 6.7L inline-six diesel engine platforms, it is widely installed in medium-to-heavy-duty trucks, city buses, concrete mixer trucks, and large-to-medium construction machinery. As a core component of the high-pressure common-rail fuel system—responsible for precisely controlling diesel atomization quality and pulse injection timing—it rapidly breaks down high-pressure diesel into ultra-fine particles under microsecond-level electrical signal control, facilitating thorough mixing with intake air for optimal combustion.
The component adheres to manufacturing standards featuring "micron-level fit tolerances" and "millisecond-level rapid response." Its internal control valve spool and needle valve assembly are crafted from premium aerospace-grade hardened bearing steel, utilizing ultra-high-precision geometric grinding and low-friction polishing. The surfaces feature a high-density, ultra-wear-resistant hardened coating that effectively prevents internal scratches and pressure-loss-related sticking caused by diesel impurities. Upon installation, both drivers and maintenance personnel will notice a clear, intuitive performance improvement: cold starts are crisp and swift, and severe vibration during low-speed idling is significantly reduced. Under conditions such as heavy-load hill climbing, high-load overtaking, or continuous excavation operations, the throttle response is tight and sensitive, acceleration is smooth yet powerful, and black smoke emissions are drastically lowered—delivering satisfying fuel efficiency and a smooth driving experience.
Key Advantage: Standardized smart manufacturing and rigorous quality control directly from the source factory.
Problem Solved: Addresses issues arising from intermediary handling, such as out-of-tolerance mating fits, uneven fuel injection across cylinders, and risks of high-pressure leakage.
Value Delivered: Leverages standardized production facilities for end-to-end quality control and eliminates unnecessary markups. Ensures highly consistent injection pressure and flow rates across cylinders, providing reliable power for vehicle and equipment operations while reducing maintenance budgets.
Key Advantage: Rigorous testing on ultra-high-pressure digital dynamic test benches across all operating conditions.
Problem Solved: Addresses common issues with low-quality replacements, such as response lag and pressure-relief valve sticking (causing engine misfires and vibration), as well as the wasted time and expense of repeated disassembly and adjustment.
Value Delivered: Every injection assembly undergoes automated testing before leaving the factory. Flow rates and sealing integrity are precisely calibrated across various pressure ranges in environments simulating actual high-temperature, ultra-high-pressure conditions. Units are ready for immediate installation, drastically saving time and costs associated with disassembly and adjustment.
Key Advantage: Large-scale warehousing with readily available stock and rapid shipping response.
Problem Solved: Addresses the costly downtime and revenue loss incurred when commercial transport vehicles and construction machinery—which serve as high-utilization productivity tools—are sidelined by fuel system failures.
Value Delivered: Warehousing centers maintain ample year-round inventory. Orders are packed and shipped within 24–48 hours of confirmation, significantly shortening logistics lead times. This helps fleets and owners quickly resume operations and avoid losses associated with vehicle downtime.
Key Advantage: Special quenched-alloy needle valves and wear-resistant hardened coatings.
Problem Solved: Addresses premature wear and valve-core seizing in precision components caused by poor diesel lubricity or sulfur impurities found in certain regions.
Value Delivered: Core components utilize high-hardness special bearing steel and surface anti-corrosion treatments, offering superior fatigue and wear resistance. Stable performance is maintained even under harsh conditions and prolonged high-load operation, reducing the extra costs associated with frequent disassembly and repair.
| Parameter Name | Parameter Value |
|---|---|
| Product Name | Electronically Controlled High-Pressure Common Rail Injector for Medium/Heavy-Duty Diesel Engines |
| Standard OE Part Number | 0445120274 |
| Cross-Reference Numbers | 0 445 120 274 / 5263321 / 5263321-NX / 0986435575 |
| Compatible Engine Platforms | ISDe 6.7L / ISBe 6.7L / QSB 6.7L Diesel Engine Platforms |
| Fuel Supply System | Electronically Controlled High-Pressure Common Rail System |
| Core Needle Valve Material | Aerospace-grade hardened bearing steel / Corrosion-resistant, high-hardness special alloy |
| Surface Treatment | High-density, ultra-wear-resistant hardened coating |
| Nozzle Hole Machining | High-precision EDM (Electrical Discharge Machining) micro-hole processing |
| Maximum Operating Pressure | ≥ 1800 bar |
| Operating Temperature Range | -40°C to +125°C |
| Internal Sealing Components | OEM-grade high-temperature and swell-resistant special fluoroelastomer (FKM O-rings) |
| Net Weight (Per Unit) | Approx. 0.82 kg |
| Factory Testing Standards | 100% automated test bench verification of flow rate and sealing across all operating conditions |
Intercity medium/heavy-duty truck freight and long-haul logistics: Medium-duty trucks and transport vehicles frequently operate on intercity routes, often maintaining full-load cruising speeds or navigating continuous uphill climbs for extended periods. When drivers notice sluggish acceleration, a lack of power in high gears, or a significant increase in fuel consumption, maintenance personnel can promptly install a full set of these high-precision common rail injectors. Post-installation, fuel injection pressure builds rapidly and stably, and acceleration under heavy loads becomes robust and smooth, ensuring the timely and efficient completion of freight tasks.
Construction sites and medium-duty machinery operations: Medium-sized excavators and loaders operating on earthmoving sites face challenges such as heavy dust and high operational stress. When equipment experiences slow starting, severe idling vibration, or stalling under heavy loads, maintenance teams install this electronically controlled fuel injection assembly. Precise fuel atomization allows the engine to instantly deliver high torque at low RPMs, ensuring smooth performance during frequent stop-start cycles and heavy-load operations, thereby keeping the project on schedule.
Q: Can the product be used immediately after installation, or does it require a correction code?
A: Each fuel injector is assigned a unique flow correction code (IMA/QR code) during factory testing. We recommend using a diagnostic tool to program this code into the engine control unit (ECU) after installation to ensure optimal fuel efficiency and smooth operation.
Q: What are the stock levels and lead times for bulk orders?
A: We operate our own factory and large-scale warehouses, maintaining substantial year-round inventory for this model. Standard orders are packed and shipped within 24–48 hours, while bulk orders can be quickly scheduled for production.
Q: How are product quality and performance ensured before shipment?
A: All fuel injectors undergo assembly in a Class 100 cleanroom environment and 100% full-load bench testing. Tests cover critical parameters such as sealing integrity, pilot injection volume, full-load injection volume, and fuel return volume; our rigorous standards guarantee that every unit shipped is a high-quality product.
Q: What is the warranty period, and how is after-sales support handled?
A: We offer a 12-month warranty. In the event of a performance failure caused by non-human factors during the warranty period, we provide rapid replacement or technical support to ensure a worry-free experience.
