ENGINE FAMILY SPECIFICATIONBOSCH COMMON RAILEuro 3 / Euro 4

Chaochai DCDC4102H 3.9L Turbo Diesel Diesel Injector
Cross-Reference & Technical Specs

Authoritative technical specifications, verified Bosch part numbers, control valve stamping codes, nozzle spray orifices, and hold-down tightening torque for the Chaochai DCDC4102H 3.9L Turbo diesel engine family.

Primary OEMBOSCH
Control ValveF00VC01371
Nozzle CodeDLLA150P1803
Peak Pressure1600 bar
Hold-Down Torque25 N·m
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All Verified Part Numbers for Chaochai DCDC4102H 3.9L Turbo Diesel

The following 1 common-rail injector assembly is calibrated for this engine family. Click the SKU to view individual test bench flow curves, sister cross-references, and vehicle applications.

Part Number (SKU)Primary OE ReferenceControl ValveNozzle Code
DCDC4102H, 4102H-EU3F00VC01371DLLA150P1803
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Verified Vehicle Compatibility

Make / ManufacturerVehicle Model & PlatformEngine SpecificationModel Years
DongfengDFL Series Light Commercial Truck 3.9DChaochai DCDC4102H 3.9L Turbo Diesel2007-2016
Chaochai4102 Series Industrial & Commercial Diesel 3.9LChaochai DCDC4102H 3.9L Turbo Diesel2007-2016
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Installation, Tightening Torque & Re-torque Protocol

Strict torque compliance is mandatory on Chaochai DCDC4102H 3.9L Turbo Diesel common-rail cylinder heads. Over-torquing stretches the injector body or strips the head clamping threads, while under-torquing allows combustion blow-by past the copper sealing washer:

🔧 Recommended Assembly Torques:
  • Hold-down clamp bolt: 25 N·m (cold state). Always clean the cylinder head recess with an injector seat reamer.
  • High-pressure rail flare nut: 25-30 N·m using a dedicated 17 mm line wrench.
  • Return leak-off banjo bolt: 9-12 N·m with fresh copper washers on both sides of the banjo union.
⚠️ ECU IMA Coding Requirement:

After fitting replacement injectors on Chaochai DCDC4102H 3.9L Turbo Diesel, generate or program the cylinder-specific IMA calibration code into the engine ECU using an OEM-level scan tool (Bosch KTS, Renault CLIP, or VAG-COM) to prevent cylinder power imbalance and rough idle.

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Technical Diagnostics FAQ for Chaochai DCDC4102H 3.9L Turbo Diesel

What DTC fault codes indicate a failing injector on Chaochai DCDC4102H 3.9L Turbo Diesel?

The most frequent fault codes are P0201 through P0204 (Injector Circuit Malfunction on Cylinders 1-4), P2146/P2149 (Injector Group Supply Voltage Error), and P0087 (Fuel Rail Pressure Low due to excessive internal leak-off). Measure solenoid coil resistance across the pins (0.5-1.5 Ω) and perform a graduated-bottle dynamic leak-back test to pinpoint the leaking cylinder.

Can sister SKUs within the Chaochai DCDC4102H 3.9L Turbo Diesel family be interchanged?

Not unless explicitly confirmed on the vehicle build plate. While sister SKUs share the same physical outer envelope and F00VC01371 control valve, they differ in nozzle spray orifice angle and factory IMA flow calibration. Mixing sister SKUs on the same engine block can trigger rough idle, elevated exhaust gas temperatures (EGT), and MOT emissions failure.

Which specific Bosch injectors fit the Chaochai DCDC4102H 3.9L Turbo Diesel engine?

The verified genuine Bosch common-rail injectors engineered for the Chaochai DCDC4102H 3.9L Turbo Diesel engine family are: