21186656 Tandem Pump | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta D9A2A Tandem Fuel and Servo Pump - Part Number: 21186656

Genuine tandem pump used on selected Volvo Penta D9A2A engines. The assembly combines the assigned fuel or hydraulic pumping functions and has a documented 16 L/min servo-pump specification.

⚙️ Key Features

• Confirmed D9A2A tandem-pump application

• Documented 16 L/min servo-pump output

• Combines matched pump sections in one assembly

• Serial-number application change documented

• Designed for the original drive and port arrangement

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21186656 - Current OEM part number

OEM / Related Numbers:

• 21186656

• 20902692 - Earlier pump used before the documented serial change

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Confirmed application:

• D9A2A engine configurations using the 16 L/min tandem pump

Documented serial application:

• 20902692 used through engine serial number 1090227176

• 21186656 used from engine serial number 1090227177

• Verify the complete engine product number and serial number before ordering

🔌 Function

The tandem pump supplies the assigned fuel and/or servo hydraulic circuits from a common engine-driven assembly.

Common signs of failure:

• Low fuel or hydraulic pressure

• Hard starting or power loss

• Heavy or inconsistent steering assistance

• Pump whine or cavitation

• External leakage

• Metal contamination in the connected circuit

• Overheating of the pump or fluid

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging