Common Rail Fuel Injector 85020362 Bebe1r17001 Bebe1r17101 Bebe1r17201 for Vo-lvo D13K Hde11 Hde13

<Product Description>
This heavy-duty electronically controlled diesel high-pressure fuel injector assembly (Core Part ID: 85020362; cross-reference/replacement numbers include 7485020362, 85013914, 21340612, 20972222, 21919013, etc.) is precision-engineered for 12.8L large-displacement inline-six heavy-duty diesel engine platforms. It is widely utilized in long-haul highway tractors, heavy-duty specialized dump trucks, large tracked construction machinery, and large-scale emergency generator sets. As a critical actuator within the heavy-duty diesel combustion system—managing high-pressure accumulation, atomization droplet size, and millisecond-precision injection timing and positioning—its primary function is to atomize fuel into ultra-fine droplets and spray them into the combustion chamber. This process, driven by overhead camshaft mechanical actuation and digital control via a precision solenoid valve, ensures a homogeneous mixture of intake air and fuel molecules, resulting in complete and efficient combustion.

The assembly’s industrial design strictly adheres to technical standards requiring ultra-high precision fit tolerances, resistance to high-load reciprocating mechanical wear, and long-term durability against vibration-induced fatigue. Key moving components—such as the internal high-pressure plunger assembly and nozzle needle valve—are crafted from specially selected, deep-hardened alloy structural steel. They undergo microscopic mirror-finish grinding and are reinforced with ultra-hard, wear-resistant, and anti-corrosive coatings. These measures effectively shield against abrasive wear caused by impurities in low-grade fuel, eliminating risks such as abnormal scoring and premature high-pressure leakage. Upon installation of the complete injection unit, mechanics and drivers will notice a distinct improvement in power performance: cold starts are crisp and smooth, and there is no resonant droning during low-speed idling. Whether climbing under full load, accelerating out of curves, or cruising at high speeds, the throttle response is immediate and robust, delivering sustained high torque. Exhaust emissions are clean and free of visible black smoke, restoring the powertrain to an ideal operating state characterized by low fuel consumption and high operational uptime. </Product Description>

<Product Advantages>
Direct supply from a standardized, precision-manufacturing factory. We significantly reduce end-user maintenance costs by eliminating the risks associated with multiple wholesale intermediaries—such as dimensional tolerance fluctuations, uneven fuel injection across cylinders, and high-pressure leakage. Leveraging a modern CNC production base, we implement full-process tolerance control on core components and cut out middleman markups. This ensures highly consistent injection flow rates and instantaneous pressure-buildup curves across all cylinders, providing a solid foundation for stable, high-output equipment performance while lowering fleet maintenance expenses.

Strict calibration on ultra-high-pressure digital dynamic test benches. Inferior replacement nozzles often suffer from sluggish solenoid response and needle-lift sticking, leading to power imbalances, misfires, and engine shudder—issues that waste technicians' time through repeated removal, replacement, and troubleshooting. After assembly in a clean, dust-free workshop, every unit undergoes testing on a digital automated rig. We simulate extreme high-pressure and high-temperature environments to verify flow rates during pre-injection and main injection phases, as well as dynamic fuel-return sealing. This ensures the assembly is ready for immediate installation, eliminating the need for further adjustment or rework.

Readily available stock and rapid shipping response. Long-haul logistics trucks and heavy-duty specialized machinery are high-utilization assets; fuel injection failures can cause costly downtime and lost productivity. Our large-scale modern warehouse maintains ample, consistent stock of these key part numbers. Upon order confirmation, items are quickly re-verified, packed, and shipped within 24–48 hours, drastically shortening lead times and helping end-users rapidly restore equipment operational capacity.

Aerospace-grade quenched wear-resistant alloy mating parts with hardened, corrosion-resistant coatings. Engineered to withstand harsh operating environments—such as those with high sulfur content or poor fuel lubricity—which typically cause premature, uneven wear on needle valves and plungers. Internal load-bearing moving components are precision-crafted from specialized high-carbon chromium alloy materials. Through vacuum deep-quenching heat treatment and the application of wear- and corrosion-resistant composite coatings, their overall resistance to mechanical impact and erosion is exponentially enhanced. This ensures stable, reliable operation even under continuous, heavy-load, and harsh conditions, thereby reducing downtime costs associated with frequent maintenance. </Product Advantages>

<Specifications>

<Application Scenarios>
Long-haul, inter-provincial heavy-load logistics: Container semi-trucks powered by 12.8L diesel engines operating continuously at full load on arterial highways, traversing both flat high-speed routes and undulating mountainous terrain day and night. When a vehicle exhibits sluggish acceleration, delayed power response, or abnormally high fuel consumption while climbing under heavy load, the maintenance team replaces the unit with a full set of high-precision electronically controlled fuel injectors. Post-installation, fuel atomization is rapid and thorough, and heavy-load acceleration becomes robust and smooth, ensuring the timely and efficient completion of freight tasks.

Large-scale open-pit quarrying and heavy material transport operations: Heavy-duty dump trucks and large-scale excavation equipment operate frequently between open-pit sites and fill-construction zones, enduring long-term exposure to airborne dust, rough terrain, and continuous full-load engine operation. When the powertrain experiences delayed cold starts, fluctuating idle speeds, or stalling under heavy loads, maintenance personnel promptly install this high-spec injector assembly; the stable, precise ultra-high-pressure injection quickly restores robust torque output, ensuring the efficient progress of material transport operations.
</Application Scenarios>

Q: Can the product be installed directly into the engine upon receipt? What precautions should be taken during installation?
A: All fuel injectors undergo calibration of injection parameters across all operating conditions on digital test benches before leaving the factory, making them ready for immediate installation. Before installation, it is essential to thoroughly clean the cylinder head injector bore and fuel passages to remove foreign debris and carbon deposits. Replace the high-temperature seal ring and copper washer with new ones, use a torque wrench to tighten fasteners strictly according to standard torque specifications, and bleed air from the fuel system before starting the engine to ensure proper operation.

Q: How are shipping timelines and inventory availability guaranteed for bulk orders from fleets or repair shops?
A: We operate our own manufacturing base and professional warehousing center, maintaining substantial safety stock of this key product specification year-round. Standard bulk orders undergo quality inspection, packing, and shipment within 24–48 hours of verification; we can also rapidly arrange flexible production and delivery schedules for large-scale fleet inventory replenishment plans.

Q: What tests does the product undergo before leaving the factory to ensure quality compliance? A: The assembly process takes place entirely within an ultra-clean workshop. Every finished unit undergoes dynamic testing on a fully automated digital test bench, comprehensively verifying cold-start pressure buildup, idle flow rate, injection consistency at full load, fuel return leakage, and high-pressure sealing integrity; these rigorous standards ensure that every product leaving the factory is of premium quality.
Q: What is the warranty period for the product, and how are after-sales issues resolved?
A: We offer a 12-month warranty on this electronically controlled fuel injector. Should performance issues arise during the warranty period—provided they are not caused by external physical damage or contamination from low-quality fuel impurities—we provide rapid replacement and remote technical support from professional engineers to ensure your long-term, stable operation.