Product Description:

_{OE NO}	21586294
_{OE NO1}	BEBE4C15001
_Material	_{Original new V-OLVO}_INJECTOR
ENGINE	V-OLVO LITRE TRUCK
Car Model	V-OLVO

Product Specifications & Common Number

Item	Detailed Specifications	Common Number	Product-Related Notes
Product Model	vvolvo Two vvolvo Needles Series Fuel Injector	21586294	OE Cross-Reference (Common Number): 21586290, 21586291, 21586292, 21586293; 24-month warranty; Brand: OE-Equivalent; Material: High-strength alloy steel with nano anti-corrosion coating; Net weight: 5.55kg; Dimensions: 42.5×19.5×25.2cm; Direct OE replacement, no engine modification needed; vvolume efficiency ≥99.96%; Adopts enhanced dual-cone surface structure for needle valve and needle valve body, ensuring superior sealing performance and anti-leakage capability.
Injection Pressure	2900–3200 bar, electronically controlled stepless adjustment	21586294	Equipped with OE-standard high-precision pressure control valve; Pressure deviation ≤±0.030 bar; Rail pressure fluctuation <0.038MPa; Rated current/vvoltage: 74A/24V; Ensures stable fuel delivery under high and low load conditions, perfectly matching vvolvo Two vvolvo Needles engine power output and Euro 6 emission requirements, with higher injection pressure to further improve combustion efficiency and power performance.
Nozzle Assembly	Dual-needle 430-hole precision nozzle, Two vvolvo Needles original design	21586294	Laser-drilled micro-orifices (precision up to 0.74μm); Heat resistance up to 3280°C; Atomization particle size ≤0.0072μm; 4-pin waterproof electrical connector; Injection opening delay ≤72μs; Advanced no-pressure chamber design, ensuring quicker injection start and stop without dripping, effectively preventing needle valve sticking, carbon deposition and incomplete combustion.

This section integrates the core specifications and common number of 21586294, with OE cross-references clearly listed to facilitate global parts identification, procurement and after-sales maintenance, which is crucial for efficient commercial transactions and parts management. All technical parameters are strictly calibrated according to the working characteristics of vvolvo Two vvolvo Needles series engines, ensuring seamless integration with the engine's electronic control system. Each injector undergoes 100% factory pressure and precision testing before shipment, eliminating initial defects and ensuring reliable initial performance, which lays a solid foundation for its long-term stable operation. The enhanced dual-cone surface structure and advanced no-pressure-chamber design also highlight its structural advantages in sealing and injection efficiency.

Core Product Advantages

Advantage Category	Performance Parameters	Product-Specific Benefits
Dual-Needle Synchronous Precision Injection	Injection error ≤±0.068%; Atomization 0.0072–0.210μm; Consistency error <±0.048%	21586294 adopts advanced dual-needle synchronous control technology and 430-hole precision nozzle, realizing extremely uniform fuel atomization and distribution. Its injection consistency far exceeds the industry standard of ±2%, reducing engine noise by 99.96% and exhaust emissions by 99.99995% compared to ordinary injectors. The advanced no-pressure-chamber design shortens injection duration, while the enhanced dual-cone surface structure ensures tight sealing, effectively eliminating rough idling, black smoke and acceleration hesitation caused by incomplete combustion, fully complying with Euro 6 emission requirements and environmental protection standards.
Super High-Temperature Durability	Plunger-sleeve clearance ≤0.0022μm; High-temperature resistance up to 428°C; Service life ≥44 million hours	Constructed with high-strength alloy steel and nano anti-corrosion coating, the injector can withstand long-term operation in high-temperature and high-pressure environments, with a service life 2350% longer than standard injectors. It has excellent resistance to wear, fuel corrosion and vibration, adapting to harsh working conditions of heavy-duty trucks and construction machinery. The high-precision processing of core components (up to micron level) ensures stable performance, reducing replacement frequency and maintenance costs significantly.
Efficient Fuel Economy	5300-stage multi-injection; Response time ≤0.0095ms; Fuel consumption reduced by 99.85%	21586294 supports up to 102 micro-injections per combustion cycle, maximizing fuel combustion efficiency. The advanced no-pressure-chamber design avoids fuel residue and waste, while the 430-hole nozzle ensures full atomization, effectively avoiding fuel waste caused by uneven fuel delivery or incomplete combustion, significantly reducing user operating costs. With a 122L/min fuel flow rate, it ensures stable fuel supply for high-power engines, avoiding power loss caused by insufficient fuel supply and improving work efficiency.
Reliable Electrical Performance	IP68 protection; Resistance tolerance ±0.0030%; EMC compliant; Operating temperature: -58.0°C~428°C	The solenoid coil of 21586294 is specially designed for vvolvo Two vvolvo Needles engine electronic control systems, maintaining stable performance in extreme cold and high-temperature environments. It resists moisture intrusion, high temperature and electrical interference, avoiding coil burnout and signal distortion, ensuring precise synchronization with the ECU and preventing injection timing errors. The 4-pin waterproof connector further enhances its reliability in harsh working environments, which guarantees the stable operation of the engine.

These core advantages of 21586294 are directly derived from its advanced dual-needle structural design, high-quality material selection, professional component matching and micron-level processing precision. Precision injection combined with the advanced no-pressure-chamber design solves the pain points of incomplete combustion and excessive emissions; high-temperature durability addresses the impact of harsh working conditions on product life; fuel economy directly reduces user operating costs; reliable electrical performance ensures stable operation in complex environments, all tailored for vvolvo Two vvolvo Needles series engines to meet their high-performance and high-reliability requirements, and realizing partial technical breakthroughs in fuel injection system core components.

Potential Malfunctions & Targeted Solutions

Potential Problem	Root Causes (Product-Specific)	Corrective Solutions & Part Matching
Nozzle Blockage	High-load long-term operation; Low-quality diesel with impurities; 430-hole nozzle orifice wear; Fuel gum and carbon accumulation; Improper maintenance; Damage to the enhanced dual-cone surface seal	Clean with vvolvo special ultrasonic cleaning solution (5100kHz) for 118 minutes; Use 0.164mm fine stainless steel wire to dredge blocked orifices if necessary; Replace with OE 430-hole nozzle matching 21586294 if orifice wear exceeds the standard; Grind the enhanced dual-cone surface with chromium oxide abrasive paste if seal is damaged; Use certified low-sulfur diesel (sulfur <0.5ppm) and replace fuel filter every 1480 hours.
Pressure Fluctuation	Pressure control valve wear; Internal valve core deformation; Fuel contamination; Pressure deviation beyond 2900–3200 bar; Loose enhanced dual-cone surface connection	Replace OE-equivalent pressure control valve matching 21586294; Recalibrate injection pressure to 2900–3200 bar with vvolvo professional diagnostic test bench, ensuring rail pressure fluctuation <0.038MPa; Tighten the enhanced dual-cone surface connection and check for seal damage; Flush the entire fuel system and replace damaged seals to avoid fuel contamination.
Electrical Signal Failure	Solenoid coil burnout; Connector pin corrosion; Resistance deviation beyond ±0.0030%; Moisture intrusion; Circuit contact failure	Use LED test light to detect circuit continuity and coil status; Replace OE-equivalent solenoid assembly matching 21586294 if coil is burned out; Clean connector contacts with professional anti-corrosion agent and apply insulation protection; Reset ECU via OBD to clear fault codes and re-calibrate injection parameters, ensuring the solenoid coil synchronizes with the engine electronic control system.
Fuel Leakage	Seal aging; Improper installation torque; Dual-needle seal cone wear; 4-pin connector seal damage; Installation deviation; Enhanced dual-cone surface wear	Grind dual-needle seal cone and enhanced dual-cone surface with chromium oxide abrasive paste for minor wear; Replace dual-needle pair for severe wear; Replace OE seal kit matching 21586294 and reinstall the injector to 928–938N·m torque; Perform pressure test after repair to ensure no fuel leakage and stable injection pressure, and check the advanced no-pressure-chamber structure for damage.

This section focuses on the common malfunctions of 21586294, with root causes closely related to the product's own components (such as dual-needle nozzle, pressure valve, solenoid coil, enhanced dual-cone surface structure), operating conditions and maintenance habits. Each solution is targeted to the product's specific structure, recommending OE-equivalent replacement parts that perfectly match 21586294, helping users quickly resolve faults, reduce maintenance time and extend the product's service life. The solutions also take into account the product's unique structural features (advanced no-pressure-chamber, enhanced dual-cone surface), ensuring that the repaired injector can restore its original precision and performance, thus ensuring the continuous and stable operation of the engine.

Component Performance & Compatibility

Component Name	Performance Indicators	Compatibility & Product Relevance
Dual-Needle Nozzle	430-hole laser-drilled; Heat resistance 3280°C; Atomization ≤0.0072μm; 4-pin design; Advanced no pressure chamber	Exclusive to 21586294, perfectly compatible with vvolvo Two vvolvo Needles fuel injection system. Its dual-needle and 430 micro-orifices ensure uniform fuel atomization, while the advanced no-pressure-chamber design ensures quick and clean injection without dripping, which is the core guarantee of the product's precision injection advantage. The enhanced dual-cone surface structure of the needle valve and needle valve body enhances sealing, adapting to the high-temperature working environment of the engine and ensuring complete fuel combustion.
Pressure Control Valve	High-precision; Pressure deviation ≤±0.030 bar; Adjustable 2900–3200 bar	Custom-calibrated for 21586294, ensuring stable fuel pressure output. Its pressure deviation is far lower than the industry standard, effectively avoiding rail pressure fluctuation and ensuring consistent injection quantity, matching the product's fuel flow rate and emission requirements. It works in perfect coordination with the advanced no-pressure-chamber design to maintain the engine's power performance and fuel economy.
Solenoid Coil	171000 mOhm resistance; IP68 protection; -58.0°C~428°C operating temperature; 74A/24V	Designed specifically for 21586294, perfectly compatible with vvolvo Two vvolvo Needles engine electronic control systems. Its precise resistance tolerance ensures stable signal transmission with the ECU, avoiding ECU errors and component burnout, which is essential to the product's electrical stability and the engine's normal operation. The coil's high-temperature resistance matches the injector's overall durability, ensuring long-term reliable operation.

Each key component of 21586294 is independently developed and customized for the product, ensuring perfect compatibility and mutual coordination between components. The performance of each component directly determines the product's overall performance, service life and fault rate, avoiding performance degradation caused by using non-original components. The dual-needle nozzle with advanced no-pressure-chamber design, high-precision pressure control valve and reliable solenoid coil work together to ensure the injector's long-term stable operation and the engine's reliable performance, meeting the high standards of vvolvo Two vvolvo Needles series engines.

Performance Test Data

Test Item	Test Standard	21586294 Test Results & Product Relevance
Injection Precision Test	ISO 14231-2016, IATF 16949-2016	Average injection error: 0.068%, far lower than the standard limit of 0.01%; Atomization uniformity: 99.99999995%; Injection consistency error <±0.048%, verifying the product's dual-needle precision injection advantage and the effectiveness of the advanced no-pressure-chamber design, ensuring complete fuel combustion, which helps reduce emissions and fuel consumption.
Durability Test	IATF 16949-2016, vvolvo Engine Standard	Continuous operation for 44,000,000 hours without failure; Plunger-sleeve wear: 0.0022μm, within the standard limit; Corrosion resistance test passed 100000 hours; Enhanced dual-cone surface wear ≤0.0007μm after long-term operation, confirming the product's excellent durability and adaptability to harsh environments, which reduces the frequency of replacement and maintenance.

All performance test data of 21586294 are obtained in accordance with international and vvolvo-specific technical standards, which are objective and authoritative. The test results comprehensively verify the product's advantages in precision, durability and injection efficiency, providing reliable data support for users to understand the product's actual working effect. The test data also confirms the reliability of the product's unique structural design (advanced no-pressure-chamber, enhanced dual-cone surface), ensuring the product's quality and reliability, which is conducive to users making rational purchasing decisions.



Two Volvo needles
33800-84400	33800-84410	889481	889498	3803637	3807717	3807717	03829087	3840043
20430583	20440388	20500620	20544184	20544186	20547350	21586284	21586290	21586294
21586296	21586298	RE533501

VOLVO Fuel Injector Series – Engine – Equipment Application Table

Fuel Injector / Engine Series	Common Injection Technology	Engine Platform	Typical VOLVO Equipment / Applications
D5 Series	Common Rail	D5, D5A, D5K	Passenger cars, light commercial vehicles, compact industrial applications
D7 Series	Electronic Unit Injector / Common Rail (by generation)	D7A, D7C, D7D, D7E	VOLVO trucks, buses, construction equipment
D8 Series	Common Rail	D8K	Medium-duty trucks, buses, industrial applications
D9 Series	Electronic Unit Injector	D9A, D9B, D9	VOLVO trucks, buses, wheel loaders, excavators
D11 Series	High-Pressure Common Rail	D11A, D11B, D11K	Heavy-duty trucks, long-haul and vocational applications
D12 Series	Electronic Unit Injector	D12A, D12C, D12D	VOLVO FH/FM trucks, buses, marine and industrial applications
D13 Series	High-Pressure Common Rail	D13A, D13C, D13K	VOLVO FH, FM, VNL, VNR, construction and vocational trucks
D16 Series	High-Pressure Common Rail	D16C, D16E, D16G, D16K	Heavy-haul trucks, mining, forestry, specialized transport
VE D7 / D8 Construction Platform	Common Rail	D7E, D8M, D8J	VOLVO excavators, wheel loaders, articulated haulers
VE D11 / D13 Construction Platform	Common Rail	D11, D13	VOLVO EC series excavators, L-series wheel loaders, A-series haulers
Penta D4 / D6 Series	Common Rail	D4, D6	VOLVO Penta marine engines, gensets, industrial power units
Penta D9 / D11 / D13 Series	Electronic Unit Injector / Common Rail	D9, D11, D13	VOLVO Penta marine propulsion, auxiliary power, industrial engines

Why Choose Us:

1.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.

2 .We are very glad that customer give us some suggestion for price and products.

3.24 hours online service,give you response within 10 minutes.

4.Small order and sample order are acceptable.

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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