0445120376 Injector Assembly for Doosan

Short Description:

0445120373 high precision common rail fuel injector assembly is replacement spare part for Weichai WP7 EU4 diesel engine, widely fitted on heavy trucks and commercial vehicles.

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Product Detail

Product Tags

description

product parameters

Part No：0445120376
Applicable Engine：Doosan diesel engine
Max Working Pressure：1600bar
Spray Hole Quantity：7 holes
Spray Hole Diameter：0.17mm
Injection Spray Angle：153°
Fuel：Diesel (EN590 standard recommended, filter fuel before use; dirty fuel will shorten service life)
Operating Temperature Range：-20℃ ~ +120℃
Response Time：≤0.35ms
Solenoid Coil Resistance：~3.0Ω
Net Weight：0.55kg
Gross Weight：0.75kg
Connector Type：Bosch common 2-pin connector
Package：Individual anti-rust packing + Neutral carton packing
Warranty：12 months
Condition：Brand new, fully tested
Storage suggestion：Keep dry and away from dust, moisture and corrosive gas, store indoors

advantage

• Strict Bench Calibration & Testing. Every injector is calibrated on professional common rail test bench before shipment. Multiple test points cover full range of injection quantities, injection delay and leakage inspection. The injection consistency between individual injectors is excellent.
• Superior Sealing Performance. Optimized sealing structure reduces internal and external fuel leakage risks. It avoids common faults such as slow engine shutdown, rough idle and carbon accumulation caused by oil leakage.
• Improved Engine Performance. Fine fuel atomization promotes full combustion. It helps raise engine power output, cut fuel consumption, reduce black smoke and harmful exhaust gas, meeting emission requirements.
• Direct Replacement & Cost-effective. It can be installed as a drop-in replacement for original injector. No extra modification needed. Ideal aftermarket spare part for engine overhaul and routine maintenance, saving procurement cost.

FAQ

Q1: Is this injector suitable for all Doosan engines?
A1: No. This model 0445120376 injector is specially developed for Doosan diesel engine. Different injectors have different internal parameters and spray hole designs. Please double-check your engine model, OE part number before ordering. Mismatched injectors will cause power drop, heavy smoke or engine damage.

Q2: What items will be tested before shipment?
A2: Every injector will undergo complete testing on the common rail test bench. Test items include idle injection quantity, full-load injection quantity, pre-injection, injection starting pressure, return oil flow and static leakage inspection. Only injectors passing all test standards can be packed and delivered.

Q3: Do I still need calibration or coding after installation?
A3: We have finished pre-calibration on the test bench before delivery. But after installing the injector on the engine, coding is strongly recommended through diagnostic instrument. Correct coding helps ECU match injector characteristic data, optimize injection control, get smoother idle and better fuel economy.

Q4: What preparation work should I do before installing new injectors?
A4: Please clean fuel pipeline, replace fuel filter and check fuel pump for wear before installation. Remove residual metal debris and dirty oil inside the fuel system. Contaminants in oil circuit are the main reason for early failure of brand-new injectors.

Q5: Can you supply bulk order? What is the packing way?
A5: Yes, bulk supply is available. Each injector is packed individually with anti-rust protection, then packed into neutral cartons. Custom packing can be discussed for large orders.

warehouse

We have built four spare parts warehouses in Xuzhou, Jining, Kunshan and Changsha to provide customers from all over the world with a variety of high-quality spare parts. We can basically ship self-provided spare parts within three days after confirming the order. If the spare parts need to be adjusted or processed, they will be shipped within 7-30 days.