20805109 Quick Coupling | Genuine Volvo Penta Part

🔧 Product Description

Application-specific SCR/AdBlue Quick Coupling used in the SCR dosing, tank-heater and reductant-line assembly on the listed Volvo Penta engines. Creates a serviceable snap connection in the SCR or coolant line while retaining the internal fluid seal.

🚤 Compatibility

• Engine Family: D, TAD, TWD, TADH
• HP Range: Approximately 340-425 HP
• Year Range: Approximately 2011 - 2020

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta SCR/AdBlue Quick Coupling
• Direct service replacement for part number 20805109
• Designed for the SCR dosing, tank-heater and reductant-line assembly
• Creates a serviceable snap connection in the SCR or coolant line while retaining the internal fluid seal
• Catalogued for TAD1170VE; TAD1171VE; TAD1172VE
• Engine type: 11-litre six-cylinder turbocharged industrial diesel with SCR aftertreatment
• Quantity varies by assembly, most commonly three

🔌 Function

Creates a serviceable snap connection in the SCR or coolant line while retaining the internal fluid seal.

⚠️ Common Signs of Failure

• White crystalline deposits around the coupling where reductant has crept out
• Emissions warning and a drop in dosing pressure
• Coupling that will not latch with a positive click when reconnected
• Retaining clip found broken, or the internal seal hardened
• Damp coolant or reductant trail below the connection

🛠️ Service Notes

• Renew all disturbed sealing washers, O-rings, grommets and clamps.
• Confirm the line is naturally aligned before tightening; do not pull it into position with the fasteners.

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 20805109 → Supersedes 20750480

OEM / Related Numbers

• 20750480 earlier number superseded by this part
• 20805110 - companion SCR quick coupling
• 21574975 - AdBlue/DEF pump units
• 22851845 - AdBlue/DEF pump units
• 21516229 - filter
• 21376707 - filter cap
• 21376721 - connectors
• 21376731 - connectors
• 21376749 - connectors
• 21574984 - dosage valve
• 20767833 - support bracket
• 994556 - hose clamps
• 992082 - hose clamps
• 990536 - rubber hose

Other-Brand OEM Numbers

• VOE20805109 - Volvo Construction Equipment prefixed number format

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D13C3-B MH, D13C1-B MH, D13C4-B MH, D13C2-B MP, D13C1-A MP, D13C2-A MP, D13C3-A MP, D13C4-A MP, D13B-E MG, D13B-E MG (FE), D13B-E MH, D13B-E MH (FE), D13B-F MG, D13B-F MG (FE), D13B-N MH, D13B-N MH (FE), D13C4-B MP, D13C5-B MP, D13C6-A MP, D13C1-A MH, D13C2-A MH, D13C1-B MG, D13C3-B MG, D13C4-B MG, D13C2-B MG, D13C5-A MP, D13C2-A MG, D13C1-A MG, D13C7-B MP, D13C8-B MP
• Volvo Penta TAD880-82GE, TAD880-84VE
• Volvo Penta TADH880-82GE, TADH880-84VE
• Volvo Penta TWD1683GE-B, TWD1683VE
• Volvo Penta TAD1140-42VE
• Volvo Penta TAD1150-52VE
• Volvo Penta TAD1170-72VE
• Volvo Penta TAD1180-83VE
• Volvo Penta TAD1371-75VE
• Volvo Penta TAD1380-82GE
• Volvo Penta TAD1381-85VE
• Volvo Penta TAD1384-85VE-IWP
• Volvo Penta TAD1660-62VE
• Volvo Penta TAD1662VE EU5
• Volvo Penta TAD1670-72VE
• Volvo Penta TAD570-72VE
• Volvo Penta TAD580-83VE
• Volvo Penta TAD870-73VE
• Volvo Penta TWD1663GE
• Volvo Penta TWD1672-1673GE
• Volvo Penta TWD1682-83GE