3806510 Injector Core | Genuine Volvo Penta Part

🔧 Product Description

Core deposit for an injector, from the Fuel System group. It is the refundable charge raised against the old injector when the exchange unit is bought, and it comes back once the worn injector is returned. The line itself is an accounting entry rather than a part, so nothing ships against it on its own. Under Volvo Penta's core numbering the exchange unit it belongs to takes part number 3803510, which is the number to quote for the component itself. The line is published with a weight of 0.198 kg, which is a guide to what the old injector weighs on its way back rather than to anything that ships out against the deposit. It is one of 13 injector cores running through this block and 2 of them carry no published weight at all, so weight will not tell the set apart - order the number that matches the injector actually coming off.

⚙️ Key Features

• Core deposit line, not an injector you can fit
• Belongs with the exchange unit, part number 3803510
• Refunded when the old injector is returned
• Listed at 0.198 kg, a guide to what goes back
• One of 13 injector cores in this block, not separated by anything published
• Injector and unit injector cores are named loosely in this series, so confirm by the exchange number rather than the name
• Fuel System group

🔌 Function

As a line item it carries the refundable core charge on the exchange; the injector itself meters the fuel charge and atomises it into the combustion chamber at the pressure and instant the engine needs it.

⚠️ 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 or a knock from one cylinder that quietens when that injector is cut
• Black or grey smoke from the exhaust, with power down and fuel use up
• Hard starting, or the engine needing extended cranking before it fires
• A diesel smell in the engine oil, or the oil level creeping up between services

🛠️ Service Notes

• The charge is refunded when the worn injector is returned, so keep the old unit and send it back rather than scrapping it
• Ordering this number on its own supplies no part - it goes on the order beside the exchange unit, part number 3803510
• Prove the fuel supply, filters, leak-off and compression before condemning an injector, and renew the seat washer and sealing rings when the exchange unit goes in

📦 Condition

• Refundable core deposit - not a physical part