21397682 Pipe | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta D11/D16 Expansion Tank Pipe - Part Number: 21397682

Rigid coolant connection pipe used at the expansion-tank assembly on specified Volvo Penta D11 and D16 marine engines. It provides the formed, correctly aligned passage between the tank and adjoining cooling-system hose or water pipe while preserving the required clearance around the engine installation.

⚙️ Key Features

• Genuine Volvo Penta formed expansion-tank pipe

• Used in specified D11A and D16C marine cooling systems

• Correct bends and connection geometry for the OEM tank arrangement

• Works with the applicable O-ring, hose and pressure-cap components

• Rigid replacement for a corroded, damaged or distorted original pipe

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21397682 (current listed OEM reference)

OEM / Related Numbers:

• 3885197 → Superseded by 21505289 - associated expansion-tank assembly on specified D11 applications

• 21861378 - associated D16 expansion tank

• 1674083 - associated pressure cap

• 968725 - associated O-ring

• 21867371 - associated water pipe

• 943366 / 943367 - associated cooling hoses

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Volvo Penta marine-engine expansion-tank and coolant-deaeration circuits

Typically suits:

• Engine models:

• D11A-A

• D11A-B

• D11A-C

• D11A-D

• D16C-A MG

• D16C-A MG RC

• HP Range: Engine-rating dependent; pipe shape and tank arrangement control fitment

• Engine Type: Volvo Penta D11 or D16 inline six-cylinder marine diesel

• Year Range: D11A/D16C generation; model- and serial-controlled

🔌 Function

Carries coolant between the expansion tank and the engine cooling circuit while maintaining the tank's deaeration and pressure-management path.

Common signs of failure:

• Coolant seepage, staining or corrosion at the pipe ends

• Pinhole corrosion or cracking at formed bends

• Distortion causing poor hose alignment or clamp sealing

• Restricted internal passage from deposits

• Loss of coolant or air entry into the expansion-tank circuit

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging