21686084 Hose | Genuine Volvo Penta Part

🔧 Product Description

Colour-coded AdBlue/DEF hose used in the SCR aftertreatment system of Volvo Penta TAD1360VE-TAD1362VE engines. This 1500 mm line is routed from the pump to tank and uses material compatible with aqueous urea solution.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD1660-62VE
• Volvo Penta TAD1662VE EU5

• Engine Family: TAD

⚙️ Key Features

• Nominal length: 1500 mm
• Route: pump to tank
• System type: SCR AdBlue/DEF line
• L=1500mm (Volvo assembly listing)

🔌 Function

Transfers DEF through the pump to tank circuit while maintaining dosing-system pressure and purity.

⚠️ Common Signs of Failure

• White crystalline deposits building up around the couplings or along the line
• DEF level dropping faster than consumption explains, with a wet patch under the run
• SCR or NOx fault codes and a power derate as dosing pressure fails to build
• Line swollen, cracked or kinked, or the outer sleeve split where it is clipped
• Slow or failed pressure build after a cold start, with the heated line not clearing

🛠️ Service Notes

• Renew the coupling seals when the line is disturbed and refit to the original clip positions, as a pinched DEF line upsets dosing pressure
• Flush urea deposits from the fittings with clean demineralised water only, never with fuel or solvent
• This is a 1500 mm pump-to-tank line and is listed separately from 21686082, which serves the same route on a different installation, so order against the engine's own parts list

🔄 Supersession & Cross Reference

Other-Brand OEM Numbers

• VOE21686084

Aftermarket / Verified Equivalents

• Related SCR hose kit/reference: 21887243 where catalogued

📦 Condition

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