21403483 Tube | Genuine Volvo Penta Part

🔧 Product Description

Genuine tube used in the 70-litre SCR reducing-agent tank assembly fitted to Volvo Penta industrial and generating-set engines. It forms part of the filler, vent or internal pickup arrangement and is manufactured from material compatible with AdBlue/DEF.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD1380-82GE
• Volvo Penta TAD880-82GE
• Volvo Penta TAD880-84VE
• Volvo Penta TAD1180-83VE
• Volvo Penta TAD580-83VE
• Volvo Penta TAD1381-85VE
• Volvo Penta TAD570-72VE
• Volvo Penta TAD1371-75VE
• Volvo Penta TAD1670-72VE
• Volvo Penta TAD1170-72VE
• Volvo Penta TAD870-73VE
• Volvo Penta TWD1682-83GE
• Volvo Penta TWD1683GE-B
• Volvo Penta TWD1683VE
• Volvo Penta TWD1672-1673GE
• Volvo Penta TAD1384-85VE-IWP
• Volvo Penta TADH880-82GE
• Volvo Penta TADH880-84VE

• Engine Family: TAD, TWD, TADH

⚙️ Key Features

• 70-litre SCR/AdBlue tank application
• Chemical-resistant tube material
• Factory length and tank-entry geometry
• Broad TAD5, TAD8, TAD11, TAD13 and TAD16 application
• Approximate catalogue weight: 0.045 kg
• Used with tank 21839998

🔌 Function

The tube carries reducing agent or tank vent flow through the 70-litre SCR tank assembly.

⚠️ Common Signs of Failure

• AdBlue leakage or crystallisation
• Slow or restricted filling
• Incorrect tank venting
• Cracked or hardened tube
• Tube detached inside the tank
• SCR level or supply fault caused by restricted flow

🛠️ Service Notes

• Fit the tube so it reaches both connections without being sprung into place — a tube pulled into line loads its ends and cracks, usually at a bend or a joint
• Renew the sealing washers, O-rings or gaskets at every connection rather than reusing them, and start each union by hand so you can feel that the thread and seating face are properly engaged before tightening
• Keep the bore clean: cap or plug both ends until the moment of fitting, and never blow debris through a tube into the component it feeds
• Support the tube in its original clips and brackets — an unsupported run will fatigue from engine vibration even though it sealed perfectly when new
• Do not straighten, re-bend or patch a damaged tube; its shape is what gives the correct stress-free fit, and tighten unions only to the figure in the workshop manual for your engine

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 21839998 - 70-litre AdBlue tank
• 82269261 - Filter
• 20562668 - Plug
• 21989995 - Gasket
• 17248402 - Filler cap
• 21509071 - Gasket
• 22462382 - Decal
• 991606 - Flange screw
• 8142642 - Grommet
• 20757803 - Hose clamp
• 60113311 - Washer

📦 Condition

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