3803491 Unit Injector | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta remanufactured unit injector weighing 2 kg. No fitment is recorded against this number in our own records, but Volvo Penta's reman catalogue lists it on D12 tables alongside cylinder head 3803666 and turbocharger 3802116, and again alongside cylinder head 3803665 and turbocharger 3802116, which we list for the D12D and the D12C-A MP engines. Its published weight is 2 kg exactly, the same figure as 3801482, so the two cannot be told apart by mass at all - order by number against your own engine's parts list. Supplied on exchange, so a core fee is added to the invoice and refunded once the worn unit is returned.

⚙️ Key Features

• 2 kg
• Listed on the D12 tables with cylinder heads 3803666 and 3803665
• Shares its published weight exactly with 3801482 - order by number
• Rebuilt to the current bill of material and tested before despatch
• 12-month Volvo Penta warranty, 24 months when fitted by an authorised dealer

🔌 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

• No engine list is held against this number and its weight matches 3801482 exactly, so order it against your own engine's parts list
• 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 3806491 carries the exchange fee and is refunded when the old unit goes back

🔄 Supersession & Cross Reference

Other-Brand OEM Numbers

• Bosch: 0 414 702 009

OEM Reman Alternatives

• Bosch: 0 986 441 109 (exchange)

📦 Condition

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