21134828 Muffler | Genuine Volvo Penta Part

🔧 Product Description

A large SCR exhaust silencer/muffler used on TAD560VE and TAD561VE installation packages. The assembly attenuates exhaust noise and interfaces with the precatalytic converter, dosing valve and temperature-sensor pipework.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD560VE
• Volvo Penta TAD561VE

• Engine Family: TAD

⚙️ Key Features

• SCR-compatible exhaust silencer
• Mounts with V-clamps, braces and support plates
• Interfaces with dosing valve 21738116
• Used with precatalytic converter 21180900
• High-temperature corrosion-resistant construction
• Engine type: Electronically controlled Volvo Penta industrial diesel with SCR/AdBlue aftertreatment

🔌 Function

Reduces exhaust pulsation noise while carrying treated exhaust gas through the SCR installation.

⚠️ Common Signs of Failure

• Loose fit or loss of alignment
• Leakage or chafing at adjoining parts

🛠️ Service Notes

• Carry the muffler on its own mountings so that its load is taken by the structure and not by the exhaust hose, pipework or the turbocharger outlet
• Fit it the right way round and to the correct fall — these units are directional, and the run must let water drain away and never allow it to run back towards the engine
• Use two corrosion-resistant clamps on each wet exhaust hose joint, staggered so the screw housings are not in line, and check the hose ends are clean, sound and pushed fully home over the spigot
• Check the whole exhaust run and its hangers while the muffler is out — old soot, water staining or a sagging hose downstream tells you why the last one failed
• Where a drain plug is fitted, use it to drain the unit for winter layup, and check for leaks and unusual noise once the engine has been run and the system is hot

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 20878280 - clamps
• 21738116 - dosing valve
• 21412472 - temperature sensor
• 21180900 - precatalytic converter
• 21524954 - exhaust pipe

📦 Condition

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