21677715 Hose | Genuine Volvo Penta Part

🔧 Product Description

A genuine moulded hose used as schematic item 10 in the inlet and exhaust system on Volvo Penta D4-180I-F marine diesel engines. It connects the specified filter, extension or intake component while preserving the required bend radius and air-flow area.

🚤 Compatibility

Typically suits:

• Volvo Penta D4-260A-F
• Volvo Penta D4-260D-F
• Volvo Penta D4-260I-F
• Volvo Penta D4-300A-F
• Volvo Penta D4-300D-F
• Volvo Penta D4-180I-F
• Volvo Penta D4-225I-F
• Volvo Penta D4-300I-F
• Volvo Penta D4-225A-F

• Engine Family: D
• HP Range: 180-300 HP
• Year Range: Approximately 2010 - 2016

⚙️ Key Features

• Genuine Volvo Penta D4 inlet-system hose
• Specified for D4-180I-F
• Factory moulded bend and bore
• Resistant to oil mist and engine-room heat
• Direct replacement for a cracked or hardened original hose
• Engine type: 3.7L inline four-cylinder common-rail turbocharged marine diesel

🔌 Function

Carries filtered intake air through the assigned inlet-system connection while accommodating engine movement.

⚠️ Common Signs of Failure

• Hissing or air leakage
• Cracking, hardening or collapse
• Oil mist around loose joints
• Reduced power from restricted air flow
• Unfiltered-air entry after hose failure

🛠️ Service Notes

• Fit hoses only to clean, sound spigots — take off old rubber, scale and corrosion, and renew the spigot or pipe if it is pitted, because no clamp will seal a rough sealing face
• Push the hose fully home so the clamp sits behind the bead or barb rather than over the end of the spigot, and fit new clamps whenever a hose is renewed
• Let the hose follow its natural bend with no kinks and no tension on either connection, clear of hot surfaces and moving parts, with chafe protection wherever it passes a bracket, edge or bulkhead
• Use the correct grade of hose for the duty, and clamp to the standard the installation demands — twin clamps are normal practice on seawater and fuel connections below the waterline
• Refill, vent and run the engine, then check every joint hot and cold and recheck the clamps after the first running period as the hose beds down

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21677715 → Supersedes 3588926 → Supersedes 3583733

OEM / Related Numbers

• 3588926 earlier number superseded by this part
• 3583733 earlier number superseded by this part
• 22428286 - related extension
• 21660058 - related inlet-system bracket

📦 Condition

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