3801277 High-Pressure Pump Exch | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta remanufactured high-pressure pump for engines from serial number 10560512 onwards, from the Fuel System group. It weighs 1.530 kg, is listed for 2 TAD series applications and supersedes part number 3801103. The parts information carries an explicit warning: never mix 3801103 and 3801277 on the same engine. This unit is supplied on an exchange basis: core deposit 3804277 is charged alongside it and refunded once the old unit is returned, so both numbers appear on the order.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD650VE
• Volvo Penta TAD660VE

• Engine Family: TAD
• Serial Range: SN10560512-, Never mix 3801103 and 3801277 on the same engine

⚙️ Key Features

• For engines from serial number 10560512 onwards
• Never mix 3801103 and 3801277 on the same engine
• Remanufactured exchange unit
• 1.530 kg
• 2 TAD series applications

🔌 Function

Raises fuel to injection pressure and delivers it in timed, metered quantity to the injection system.

⚠️ Common Signs of Failure

• Hard starting, or starting only after long cranking
• Loss of power and fuel pressure fault codes
• Rough running or hunting at idle
• Diesel weeping from the pump body or its unions
• Whine or knock from the pump drive

🛠️ Service Notes

• On a multi-pump engine all pumps must be to the same number - the old 3801103 and this number must never be mixed on one engine
• Check the engine serial number before ordering, as this pump covers the build from 10560512 onwards
• Renew the fuel filters and work clean, capping every union while the pump is off
• Core deposit 3804277 is charged with this unit and refunded when the old one is returned - order both together

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 3801277 → Supersedes 3801103

OEM / Related Numbers

• 3801103 earlier number superseded by this part

Other-Brand OEM Numbers

• Bosch: 0 414 693 003 / 0 414 693 007

OEM Reman Alternatives

• Bosch Reman: 0 986 437 603

📦 Condition

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