3804339 Injector Core | Genuine Volvo Penta Part

🔧 Product Description

Core deposit line for an injector, held in the Fuel System group. The line exists to hold the refundable charge on the old injector being handed back against an exchange unit; no hardware moves against it. Its pair is part 3801339, which is where the injector comes from.

⚙️ Key Features

• A deposit line, not a shippable part
• Refunded on return of the old injector
• Pairs with part 3801339

🔌 Function

Holds the refundable core charge against an exchange injector and releases it once the old injector is returned.

⚠️ Common Signs of Failure

• This is a deposit line and has nothing to fail in itself; the signs below are what normally condemns the injector being exchanged
• Rough idle with a misfire that can be traced to one cylinder
• Hard starting, black or white smoke, and fuel consumption creeping up
• A knock or rattle from one cylinder that changes with load
• Back-leakage well above what the pipe should return, so the engine runs down on pressure

🛠️ Service Notes

• The charge on this line is refunded on return of the old injector.
• Ordering this number on its own supplies no part - the injector comes from its paired line, part 3801339.

📦 Condition

• Refundable core deposit - not a physical part