21235854 Drain Hose | Genuine Volvo Penta Part

🔧 Product Description

A flexible drain hose used to simplify engine-oil removal on selected Volvo Penta D4 marine engines. It connects to the sump drain point and can be routed to an accessible service location.

🚤 Compatibility

• Engine Family: D
• HP Range: 145-320 HP

Full model list at the end of this description.

⚙️ Key Features

• Allows cleaner routine oil changes
• Oil- and heat-resistant construction
• Uses the original nipple, washers and support brackets
• Direct replacement where part number 21235854 is specified
• Engine type: D4 four-cylinder turbocharged marine diesel

🔌 Function

Provides an accessible path for draining engine oil during servicing.

⚠️ Common Signs of Failure

• Oil leakage at the nipple or cap
• Cracked or hardened hose
• Chafing against the engine
• Damaged drain fitting
• Hose left unsecured below the oil level

🛠️ Service Notes

• Route the hose to a drain point that stays accessible with the engine installed, since its whole purpose is to let an oil change be done without disturbing the sump plug
• Refit it using the original nipple, washers and support brackets rather than improvising a clamp-only fixing, and keep the run clear of hot exhaust or turbo surfaces
• Check the hose for hardening or cracking at each oil change, since it carries hot oil for as long as it is fitted, not just during the few minutes of a drain

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 943299 - drain nipple
• 941744 - sealing washer, commonly two required
• 3584088 - bracket, commonly two required
• 952629 - clamp, commonly two required
• 946173 and 946501 - screws

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D4-260A-B, D4-260A-A, D4-260A-C, D4-260A-D, D4-260A-E, D4-260A-F, D4-260D-B, D4-260D-C, D4-260D-D, D4-260D-E, D4-260D-F, D4-260I-A, D4-260I-B, D4-260I-C, D4-260I-D, D4-260I-E, D4-260I-F, D4-300A-A, D4-300A-C, D4-300A-D, D4-300A-E, D4-300A-F, D4-300D-A, D4-300D-C, D4-300D-D, D4-300D-E, D4-300D-F, D4-300I-A, D4-180I-C, D4-225I-C, D4-180I-D, D4-225I-D, D4-180I-E, D4-225I-E, D4-180I-F, D4-225I-F, D4-210A-A, D4-210A-B, D4-225A-B, D4-225A-C, D4-225A-D, D4-300I-C, D4-300I-D, D4-300I-E, D4-300I-F, D4-225A-E, D4-225A-F, D4-210I-A, D4-210I-B, D4-180I-B, D4-225I-B, D4-175I-G, D4-230I-G, D4-270I-G, D4-320I-G, D4-300I-G, D4-150A-G, D4-230A-G, D4-270A-G, D4-320A-G, D4-300A-G, D4-145I-G