Bosch 0445124048 Diesel Injector – Genuine Scania DC09/DC13/DC16 Common Rail Replacement

 

The Bosch 0445124048 is a new-generation solenoid-controlled fuel injector engineered specifically for Scania heavy-duty trucks equipped with DC09, DC13, and DC16 engine platforms. As the original equipment supplier to Scania, Bosch delivers this injector as a direct replacement for OEM part 2438101, designed to restore precise fuel metering, optimal spray atomisation, and consistent rail pressure control in high-load commercial applications . This unit is not a remanufactured core-it is a 100% new genuine injector manufactured to the exacting tolerances required for Euro 5 and Euro 6 emissions compliance, ensuring your workshop delivers a repair that matches or exceeds factory performance specifications.

 

This injector is exclusively tailored for Scania's inline 5- and 6-cylinder diesel engines found across the R-series, G-series, and P-series tractor and rigid truck models from 2016 onwards . Direct cross-reference confirms 0445124048 replaces Scania part 2438101 without modification, and it is also listed under alternative catalogue numbers including 570648 and 2336298 for specific regional variants . The injector is designed for engines producing between 350 and 730 bhp, covering the full power band of the DC09, DC13, and DC16 families. Critical to understand: while the injector shares the same base architecture as other Bosch CRI units, the 0445124048 features a unique calibration code that must be programmed into the engine ECU using diagnostic software such as Scania SDP3 or Bosch ESI[tronic]. Installing this part without coding will result in cylinder imbalance, reduced fuel economy, and potential black smoke under load.

 

The 0445124048 operates as a high-pressure common rail solenoid injector (CRI) within the Bosch system architecture, with a maximum operating pressure of approximately 1,600 bar. The nozzle is a multi-hole, laser-drilled type with a symmetrical hole configuration that promotes superior cold-start atomisation and lower particulate emissions compared to staggered-hole designs . Key technical data for workshop validation: coil resistance at 20°C ranges between 0.2 and 0.6 Ω; allowable return flow at idle is ≤ 35 ml/min per industry standards for healthy injectors-measurements exceeding this threshold indicate internal wear or needle/seat damage requiring replacement . Bosch specifies the control valve as F00VC30400 and the nozzle as DLLA-type, though exact nozzle codes are production-batch specific and not user-serviceable. The injector body weighs approximately 0.6 kg and features a 12-digit serial number laser-etched on the side-always verify this number matches the supplied packaging to confirm authenticity and avoid counterfeit units.

 

Clean the cylinder head bore thoroughly – any debris compromises the seal. Replace the copper washer and O-ring every time – reusing causes leakage and compression loss. Tighten the clamp bolt in two stages: 20 N·m first, then 90° angle-tighten. High-pressure lines go to 27 ± 2 N·m – over-tightening distorts the flare. Prime by cycling ignition 3–5 times, idle for 3–5 minutes checking for leaks, then write the calibration code via diagnostic tool – this final step is non-negotiable.

 

 

Diagnostic Indicator	Threshold / Observation	Recommended Action for 0445124048
Injector trim/balance values	Consistently beyond ±3 mg/stroke on one cylinder	Replace that injector immediately-cannot be compensated by ECU adaptation
Leak-off test results	One injector returns >1.5× the fuel volume of others at idle	Internal needle/seat wear confirmed-replace, as cleaning will not restore mechanical integrity
Rail pressure deviation	Actual rail pressure trails desired by >50 bar under load	Verify high-pressure pump first; if pump is sound, the injector is likely stuck or clogged
Spray pattern on test bench	Asymmetric, streaming, or dripping fuel delivery	Replace-poor atomisation causes bore wash, cylinder scoring, and DPF overloading
Mileage and maintenance history	Exceeds 150,000 km with inconsistent filter changes	Consider replacing all cylinders as a balanced set to avoid uneven wear and repeated labour costs

 

Q1: Can I replace just one faulty injector?
A: Yes, but above 150,000 km we recommend a full set. Mismatched flow causes uneven cylinder loading, vibration, and shorter DPF life – a full set is more cost-effective long-term.

Q2: Does this injector come pre-coded?
A: No. You must write the calibration code using SDP3, ESI[tronic], or equivalent tools. Without coding, the engine will run rough with higher fuel consumption.

Q3: What service life can I expect?
A: With 30,000-km filter changes and clean diesel, expect 150,000–200,000 km. Water contamination is the #1 killer – fit a water separator in humid climates.

Q4: Genuine Bosch or remanufactured?
A: 100% new genuine Bosch in factory packaging with hologram seal and serial number – not remanufactured.

Q5: What warranty do you offer?
A: 24-month unlimited-mileage warranty against defects, provided installation follows Bosch specs and fuel filtration meets OEM standards.

Q6: Injector vs. pump failure – how to tell?
A: If rail pressure is normal but one cylinder shows high leak-off or skewed balance values, it's the injector. Pump issues affect all cylinders simultaneously with low rail pressure across the board.

 

 

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