21128465 Hose | Genuine Volvo Penta Part

🔧 Product Description

A formed hose used in the SCR/AdBlue or industrial-engine support circuit. The hose material and routing are selected for the assigned coolant, reducing-agent or air connection and the installed aftertreatment package.

🚤 Compatibility

Typically suits:

• Volvo Penta 4.3GXiE-M

⚙️ Key Features

• Application-specific hose chemistry
• Moulded bends suit the tank or aftertreatment routing
• Designed for vibration and temperature cycling
• Correct connection diameter and clamp position
• SCR generation and tank layout must match
• Engine type: Electronically controlled Volvo Penta industrial diesel with SCR/AdBlue aftertreatment

🔌 Function

Carries the assigned fluid between SCR or engine-system components without leakage, kinking or chafe.

⚠️ Common Signs of Failure

• Weeping or crystalline residue at the hose ends
• The hose gone hard, swollen or cracked
• Dosing or aftertreatment fault codes from a leak or restriction
• Chafe marks where the hose has rubbed against surrounding components
• On removal, a collapsed or kinked bend restricting flow

🛠️ Service Notes

• Supersedes 21125465
• Renew the clamps with the hose and keep the original routing and clip positions

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21128465 → Supersedes 21125465

OEM / Related Numbers

• 21125465 earlier number superseded by this part

📦 Condition

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