21475226 Separator | Genuine Volvo Penta Part

🔧 Product Description

A complete crankcase ventilation separator that removes oil mist from blow-by gases before the gases are returned to the engine intake or discharged through the ventilation system.

⚙️ Key Features

• Genuine Volvo Penta separator assembly
• Reduces oil carry-over from crankcase gases
• Heavy-duty housing for industrial engine service
• Protects intake and turbocharger components from oil contamination
• Service or replacement is controlled by the engine ventilation arrangement
• Engine type: Heavy-duty turbocharged diesel

🔌 Function

Separates lubricating-oil droplets from crankcase blow-by gas and returns the oil to the engine.

⚠️ Common Signs of Failure

• Oil mist around the breather
• Oil consumption increases
• Oil contamination in the intake system
• Breather restriction or external oil leakage

🛠️ Service Notes

• At 2.395 kg this is one of the heavier separators in the catalogue — support the housing itself when removing or refitting it rather than letting its weight hang on the drain or vent connections
• Check the drain line back to the sump is clear before condemning the separator, since a blocked drain floods a sound unit and produces the same symptoms as a failed one
• A rise in crankcase pressure can be blow-by from worn rings rather than a failed separator — measure it before renewing the unit

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21475226 → Supersedes 20707295

OEM / Related Numbers

• 20707295 earlier number superseded by this part

📦 Condition

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