21274017 Hose | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta formed hose used in the crankcase-ventilation and oil-separator circuit on D13B-E MG (FE) engines. It carries separated vapour or drain flow between the oil separator, pipework and engine connection without kinking or allowing unfiltered crankcase vapour to escape.

🚤 Compatibility

• Engine Family: D

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta crankcase-ventilation hose
• Confirmed D13B-E MG (FE) application
• Correct formed route for the oil-separator assembly
• Oil- and vapour-resistant material
• Works with adapter 21274024 and the associated separator pipework
• Engine type: Volvo Penta D13 inline-six marine generating-set diesel

🔌 Function

Routes crankcase vapour or separated oil flow through the closed-ventilation system while maintaining a sealed connection.

⚠️ Common Signs of Failure

• Oil mist or vapour escaping around the separator pipework
• Oil traces or drips below the ventilation connection
• Raised crankcase pressure showing as a pushed-out dipstick or fresh leaks at the seals
• Hose found soft, swollen, split or oil-soaked on removal

🛠️ Service Notes

• Supersedes 3889726, which was catalogued earlier as a pipe, so an older list may show a rigid part at this position
• Works with adapter 21274024, so check that adapter and its sealing ring while the hose is off

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21274017 → Supersedes 3889726

OEM / Related Numbers

• 3889726 earlier number superseded by this part
• 21122541 - oil separator
• 20532891 - separator gasket
• 20580933 - companion hose
• 21750225 - associated pipe references
• 78467410 - associated pipe references
• 949997 - hose clamp
• 3849250 - flange
• 21274024 - adapter
• 21532258 - sealing ring

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D13C4-B MH, D13C1-B MH, D13C1-A MP, D13C2-A MP, D13C3-A MP, D13C4-A MP, D13B-A MP, D13B-H MP, D13B-G MP, D13B-L MP, D13B-E MG, D13B-E MG (FE), D13B-E MH, D13B-E MH (FE), D13B-F MG, D13B-F MG (FE), D13B-K MP, D13B-N MH, D13B-N MH (FE), D13B-B MP, D13B-D MP, D13B-J MP, D13B-M MP, D13B-C MP, D13C4-B MP, D13C5-B MP, D13C6-A MP, D13C1-A MH, D13C2-A MH, D13C1-B MG, D13C3-B MG, D13C2-B MG, D13C4-B MG, D13C5-A MP, D13C2-A MG, D13C1-A MG, D13C8-B MP