21586282 Unit Injector | Genuine Volvo Penta Part

🔧 Product Description

A genuine electronically controlled unit injector used on Volvo Penta D11B1-A marine propulsion engines. Each injector is mechanically driven by the camshaft and electronically commanded to generate injection pressure, meter fuel quantity and control injection timing for one cylinder.

🚤 Compatibility

Typically suits:

• Volvo Penta D11C2-A MP
• Volvo Penta D11B3-A MP
• Volvo Penta D11B4-A MP
• Volvo Penta D11B2-A MP
• Volvo Penta D11B1-A MP

• Engine Family: D
• HP Range: Approximately 625 HP
• Year Range: Approximately 2010 - 2015

⚙️ Key Features

• Genuine Volvo Penta electronically controlled unit injector
• Integrates high-pressure pumping, metering and injection nozzle
• Engine-calibration-specific fuel delivery
• Genuine Volvo Penta remanufactured alternative available
• New sealing components must be used during installation
• Engine type: 10.8L inline six-cylinder turbocharged common-rail-equivalent unit-injector marine diesel
• 6 used per assembly

🔌 Function

Builds injection pressure and delivers a precisely timed and metered fuel charge directly into the cylinder under control of the engine-management system.

⚠️ Common Signs of Failure

• Cylinder misfire, rough idle or reduced power
• Excessive smoke or abnormal exhaust temperature
• Fuel dilution of the engine oil or high fuel consumption
• Injector-balance, electrical-circuit or combustion fault codes

🛠️ 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

• 3801433 - genuine Volvo Penta remanufactured injector

OEM / Related Numbers

• 276948 - injector O-ring / sealing kit
• 21425162 - injector yoke
• 21344774 - injector retaining screw
• 994891 - cable ties
• 990073 - cable ties

Other-Brand OEM Numbers

• Delphi BEBE4D38001 - injector manufacturer cross-reference
• Delphi: HRE355

📦 Condition

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