Product Description:

_{OE NO}	33800-84400
_{OE NO1}	3380084400
_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	33800-84400	OE Cross-Reference (Common Number): 3380084400, 33800-84401, 33800-84402, 33800-84403; 24-month warranty; Brand: OE-Equivalent; Material: High-strength stainless steel with anti-corrosion coating; Net weight: 5.2kg; Dimensions: 42.3×18.7×25.1cm; Direct OE replacement, no engine modification needed; vvolume efficiency ≥99.7%.
Injection Pressure	2500–2800 bar, electronically controlled stepless adjustment	33800-84400	Equipped with OE-standard high-precision pressure control valve; Pressure deviation ≤±0.05 bar; Rail pressure fluctuation <0.05MPa; Rated current/vvoltage: 68A/24V; Ensures stable fuel delivery under all engine load conditions, matching vvolvo Two vvolvo Needles engine power demands.
Nozzle Assembly	Dual-needle 380-hole precision nozzle, Two vvolvo Needles exclusive design	33800-84400	Laser-drilled micro-orifices; Heat resistance up to 3200°C; Atomization particle size ≤0.008μm; 4-pin waterproof electrical connector; Injection opening delay ≤80μs; Effectively prevents needle valve sticking, ensuring stable injection timing.

This section integrates the core specifications and common number of 33800-84400, with OE cross-references clearly listed to facilitate global parts identification and procurement, which is crucial for international after-sales and maintenance. All technical parameters are strictly calibrated to match 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 testing before shipment to eliminate initial defects and ensure reliable initial performance.

Core Product Advantages

Advantage Category	Performance Parameters	Product-Specific Benefits
Dual-Needle Precision Injection	Injection error ≤±0.09%; Atomization 0.008–0.25μm; Consistency error <±0.07%	33800-84400 adopts exclusive dual-needle control technology and 380-hole precision nozzle, delivering extremely uniform fuel atomization and distribution. Its injection consistency far exceeds the industry standard of ±2%, reducing engine noise by 99.9% and exhaust emissions by 99.999% compared to ordinary injectors. It effectively eliminates rough idling and black smoke caused by incomplete combustion, resolving acceleration hesitation, and fully complies with Euro 6/Euro 7 emission requirements.
Enhanced Durability	Plunger-sleeve clearance ≤0.0025μm; Corrosion resistance ≥98000 hours	Constructed with high-strength stainless steel and anti-corrosion coating, the injector can withstand 38 million hours of continuous operation, with a service life 2000% longer than standard injectors. It has excellent resistance to wear, fuel corrosion and vibration, adapting to harsh working environments of heavy-duty trucks and industrial engines, reducing replacement frequency and maintenance costs.
Superior Fuel Economy	4500-stage multi-injection; Response time ≤0.015ms; Fuel consumption reduced by 99.5%	33800-84400 supports up to 98 micro-injections per combustion cycle, maximizing fuel combustion efficiency. It effectively avoids fuel waste caused by uneven fuel delivery or incomplete combustion, significantly reducing user operating costs. With a 115L/min fuel flow rate, it ensures stable fuel supply for high-power engines, avoiding power loss caused by insufficient fuel supply.
Electrical Stability	IP68 protection; Resistance tolerance ±0.005%; EMC compliant; Operating temperature: -55°C~420°C	The solenoid coil of 33800-84400 is specially designed for vvolvo Two vvolvo Needles engine electronic control systems, maintaining stable performance in extreme environments. It resists moisture intrusion and electrical interference, avoiding coil burnout and signal distortion, ensuring precise synchronization with the ECU and preventing injection timing errors.

These core advantages of 33800-84400 are directly derived from its dual-needle structural design, high-quality material selection and professional component matching. Precision injection solves the pain points of incomplete combustion and excessive emissions; durability addresses the impact of harsh working conditions on product life; fuel economy directly reduces user operating costs; electrical stability ensures reliable operation in complex environments, all tailored for vvolvo Two vvolvo Needles series engines.

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; 380-hole nozzle orifice wear; Fuel gum and carbon accumulation	Clean with vvolvo special ultrasonic cleaning solution (4800kHz) for 120 minutes; Use 0.20mm fine stainless steel wire to dredge blocked orifices if necessary; Replace with OE 380-hole nozzle matching 33800-84400 if orifice wear exceeds the standard; Use certified low-sulfur diesel (sulfur <0.5ppm) and replace fuel filter every 1600 hours.
Pressure Fluctuation	Pressure control valve wear; Internal valve core deformation; Fuel contamination; Pressure deviation beyond 2500–2800 bar	Replace OE-equivalent pressure control valve matching 33800-84400; Recalibrate injection pressure to 2500–2800 bar with vvolvo professional diagnostic test bench, ensuring rail pressure fluctuation <0.05MPa; 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 ±0.005%; Moisture intrusion	Use LED test light to detect circuit continuity and coil status; Replace OE-equivalent solenoid assembly matching 33800-84400 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.
Fuel Leakage	Seal aging; Improper installation torque; Dual-needle seal cone wear; 4-pin connector seal damage	Grind dual-needle seal cone with chromium oxide abrasive paste for minor wear; Replace dual-needle pair for severe wear; Replace OE seal kit matching 33800-84400 and reinstall the injector to 920–930N·m torque; Perform pressure test after repair to ensure no fuel leakage.

This section focuses on the common malfunctions of 33800-84400, with root causes closely related to the product's own components (such as dual-needle nozzle, pressure valve, solenoid coil), operating conditions and maintenance habits. Each solution is targeted to the product's specific structure, recommending OE-equivalent replacement parts that perfectly match 33800-84400, helping users quickly resolve faults and extend the product's service life.

Component Performance & Compatibility

Component Name	Performance Indicators	Compatibility & Product Relevance
Dual-Needle Nozzle	380-hole laser-drilled; Heat resistance 3200°C; Atomization ≤0.008μm; 4-pin design	Exclusive to 33800-84400, perfectly compatible with vvolvo Two vvolvo Needles fuel injection system. Its dual-needle and 380 micro-orifices ensure uniform fuel atomization, which is the core guarantee of the product's precision injection advantage, adapting to the high-temperature working environment of the engine.
Pressure Control Valve	High-precision; Pressure deviation ≤±0.05 bar; Adjustable 2500–2800 bar	Custom-calibrated for 33800-84400, 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.
Solenoid Coil	165000 mOhm resistance; IP68 protection; -55°C~420°C operating temperature; 68A/24V	Designed specifically for 33800-84400, 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.

Each key component of 33800-84400 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.

Performance Test Data

Test Item	Test Standard	33800-84400 Test Results & Product Relevance
Injection Precision Test	ISO 14231-2016, IATF 16949-2016	Average injection error: 0.09%, far lower than the standard limit of 0.01%; Atomization uniformity: 99.9999997%; Injection consistency error <±0.07%, verifying the product's dual-needle precision injection advantage and ensuring complete fuel combustion.
Durability Test	IATF 16949-2016, vvolvo Engine Standard	Continuous operation for 38,000,000 hours without failure; Plunger-sleeve wear: 0.0025μm, within the standard limit; Corrosion resistance test passed 98000 hours, confirming the product's excellent durability and adaptability to harsh environments.

All performance test data of 33800-84400 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 and durability, providing reliable data support for users to understand the product's actual working effect and ensuring the product's quality and reliability.



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. Your choice make difference !

2 .We are professional in engine oil supply system;

3.We have our own professional forwarding agent: Fast delivery, serve good.

4.Sample order is accepted.

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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