3804229 Unit Injector Core | Genuine Volvo Penta Part

🔧 Product Description

Core deposit for an exchange unit injector, listed under the Fuel System group at 10.433 kg. It is the refundable charge raised against the worn unit injector you send back and ships nothing itself. Under Volvo Penta's core numbering it pairs with part 3801229. The 10.433 kg is worth a second look: core 3804144, also a unit injector, is listed at 1.247 kg, so this line is around eight times the mass of a single injector and is more likely to cover a set or a complete assembly. Confirm what the exchange covers before raising it.

⚙️ Key Features

• Refundable core deposit, not a fitted part
• Pairs with part 3801229
• 10.433 kg
• Far heavier than the single unit injector core 3804144 at 1.247 kg

🔌 Function

Carries the refundable core charge on an exchange unit injector; the unit injector it covers pressurises and meters its own cylinder's fuel charge and sprays it into the combustion chamber.

⚠️ Common Signs of Failure

• This is a deposit line and has nothing to fail in itself; the signs below are what normally condemns the unit injector being exchanged
• Rough idle with one or more cylinders clearly down
• Hard starting, white smoke and a knock from a single cylinder
• A fault code raised against one injector circuit, or a sticking solenoid
• Fuel diluting the engine oil, or spill return above limit on test

🛠️ Service Notes

• The deposit is refunded when the old unit injectors are returned; ordering this line on its own supplies no part
• Check with the exchange paperwork whether this deposit covers one injector or a set, as the listed weight is well above a single unit
• Renew the copper sleeve seals and O-rings and reset injector height and valve clearances when the exchange units go in

📦 Condition

• Refundable core deposit - not a physical part