20798506 Hose | Genuine Volvo Penta Part

🔧 Product Description

Genuine service component used in the d5a fuel-filter housing and low-pressure fuel supply. It restores the original Volvo Penta dimensions, fit and operating relationship.

🚤 Compatibility

Typically suits:

• Volvo Penta D5A-B TA
• Volvo Penta D5A-T
• Volvo Penta D5A-TA
• Volvo Penta D7A-B TA
• Volvo Penta D7A-T
• Volvo Penta D7A-TA
• Volvo Penta D7C-B TA
• Volvo Penta D7C-TA
• Volvo Penta MD2010
• Volvo Penta MD2010B

• Engine Family: D, MD
• HP Range: Approximately 160 HP
• Year Range: Approximately late 1990s-2000s

⚙️ Key Features

• Fuel hose for the D5A filter housing and low-pressure supply
• 0.25 kg
• 10 applications across D and MD-series engines
• Supersedes 3838576, catalogued earlier as a fuel hose

🔌 Function

Carries fuel between the filter housing and its connection in the low-pressure supply circuit, flexing with engine movement without loading the unions.

⚠️ Common Signs of Failure

• Diesel smell, or a wet or sticky film along the hose
• Hard starting or hunting from air being drawn in at a joint
• Hose found hard, cracked or swollen and soft
• Chafe mark or rub-through where the hose passes a bracket
• Ends found weeping under the clamps or crimps

🛠️ Service Notes

• Renew the sealing washers or clamps at both ends when fitting
• Route the new hose exactly as the old one ran and clamp it at the original points - a hose that touches the block or a moving part will not last
• Prime and bleed the fuel system afterwards

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 20798506 → Supersedes 3838576

OEM / Related Numbers

• 3838576 earlier number superseded by this part
• 864315 fuel filter
• 20460417; 21518471; 21264822 feed-pump references
• 20798511 hose clamp
• 20799234 sealing ring
• 21108673 later/related seal
• 20405562 hollow screw
• 20799255 nipple
• 20450912 retaining screw
• 20460063 spring washer
• 947622 pump gasket
• 20412596 hose nipple
• 20460254 bracket

📦 Condition

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