3801293 Unit Injector | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta remanufactured unit injector weighing 1.948 kg and listed for nine applications - the D12D-A, -B, -C, -E and -G MG and MH engines together with the TAD1241VE, TAD1242VE and TAD1241-42VE. It is the lightest of the three D12 unit injectors listed here; 3803491 and 3801482 both weigh 2 kg exactly, so this is the one number in the group that its own weight distinguishes. Volvo Penta reman components are rebuilt to the current bill of material with wear parts replaced by new genuine parts, then tested and painted before despatch. Supplied on exchange, so a core fee is added to the invoice and refunded once the worn unit is returned.

🚤 Compatibility

Typically suits:

• Volvo Penta D12D-A MG
• Volvo Penta D12D-B MH
• Volvo Penta D12D-C MH
• Volvo Penta D12D-E MG
• Volvo Penta D12D-E MH
• Volvo Penta D12D-G MH
• Volvo Penta TAD1241VE
• Volvo Penta TAD1242VE
• Volvo Penta TAD1241-42VE

• Engine Family: D, TAD

⚙️ Key Features

• For the D12D MG and MH engines and the TAD1241 and TAD1242 range, nine applications
• 1.948 kg
• The lightest of the three D12 unit injectors listed here
• Rebuilt to the current bill of material and tested before despatch
• 12-month Volvo Penta warranty, 24 months when fitted by an authorised dealer
• 6 used per assembly

🔌 Function

Combines the pumping element and the nozzle in one body, generating injection pressure at the cylinder and metering fuel directly into the combustion chamber.

⚠️ Common Signs of Failure

• Hard starting, especially from cold
• Rough or lumpy idle that smooths out under load
• White or grey smoke at low load
• A hard metallic knock from one cylinder
• Tip or plunger found worn, coked or scuffed on strip-down

🛠️ Service Notes

• The MP-rated D12D engines take 3801482 instead, so check the rating suffix as well as the model
• Renew the copper sealing washer and the O-rings, set the unit injector height and torque the clamp to the engine's own figures
• Core deposit 3804293 carries the exchange fee and is refunded when the old unit goes back

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 3801293 → Supersedes 3803569

OEM / Related Numbers

• 3803569 earlier number superseded by this part

Other-Brand OEM Numbers

• Bosch: 0 414 702 016 / 0 414 702 025

📦 Condition

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