20440388 Unit Injector | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta electronically controlled unit injector used on D9 industrial engines including TAD940GE and later TAD942 / TAD943 applications. It combines fuel pressurisation, metering and injection in a single cylinder-head-mounted assembly.

⚙️ Key Features

• Electronically actuated unit injector
• High-pressure pumping and nozzle functions in one assembly
• Controlled by the engine-management system
• Requires injector coding or calibration where specified
• Confirmed Delphi injector-family cross references
• Engine type: Volvo Penta 9-litre electronic diesel

🔌 Function

Meters, pressurises and injects diesel directly into one cylinder under electronic control.

⚠️ Common Signs of Failure

• Cylinder misfire or rough idle
• Excessive smoke
• Injector electrical fault or correction imbalance
• Fuel leakage or poor injection pattern

🛠️ Service Notes

• Work scrupulously clean: cap or plug the fuel connections as soon as they are opened and keep grit out of the injector bore and off the injector body — contamination is the commonest cause of a new unit injector failing early
• Fit new O-rings and sealing washers throughout, lightly lubricated on assembly so they slide into the bore without rolling or being nipped
• Inspect the copper sleeve in the head while the injector is out; a sleeve that is disturbed, corroded or leaking must be renewed with the proper sleeve tooling before the injector goes back
• Clean the injector seat and the sealing area at the top of the bore, and check the hold-down clamp and yoke for wear or distortion — a bent clamp will let combustion gases past
• Tighten the clamp and set the unit injector adjustment to the procedure, sequence and figures in the workshop manual for your engine, bleed the fuel system before cranking, and where the engine management holds injector calibration or trim data, program the new injector in

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 85000071 / 3803654 - related Volvo Penta references
• 20363749 / 3801437 - related earlier or exchange references

Other-Brand OEM Numbers

• Delphi BEBE4C01001 / BEBE4C01101 - related injector-family codes
• Delphi: BEBE4C01101

OEM Reman Alternatives

• Delphi Reman: HRE113

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging