22394978 Fuel Hose | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta formed fuel hose used in the fuel system of selected 16-litre industrial diesel engines. The hose is configured for the original routing and connection points and is intended to withstand diesel fuel, engine-bay heat, vibration and pressure pulsation. Correct hose construction and end geometry are essential for preventing fuel leaks and air ingress.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD1650VE-B/51VE
• Volvo Penta TAD1643VE-B
• Volvo Penta TWD1644-45GE
• Volvo Penta TAD1640VE-B
• Volvo Penta TAD1641VE-B
• Volvo Penta TAD1642VE-B
• Volvo Penta TAD1670-72VE
• Volvo Penta TWD1682-83GE
• Volvo Penta TWD1683GE-B
• Volvo Penta TWD1683VE
• Volvo Penta TAD1640-42VE-C
• Volvo Penta TWD1744GE

• Engine Family: TAD, TWD

⚙️ Key Features

• Fuel-compatible OEM hose construction
• Preformed routing for the factory fuel-system layout
• Designed to tolerate heat, vibration and pressure pulsation
• Correct connection geometry for original hollow screws, sealing rings and clamps
• Supports dependable fuel delivery and return flow
• Replacement should include inspection of associated seals and clamps

🔌 Function

The fuel hose carries diesel fuel between fixed fuel-system components while absorbing engine movement and vibration. A sealed, unrestricted hose prevents fuel starvation, loss of prime and hazardous leakage.

⚠️ Common Signs of Failure

• Diesel smell or visible wetness around the hose
• Cracking, hardening, swelling or abrasion
• Air bubbles in the fuel circuit or difficult priming
• Hard starting or engine stalling
• Reduced power under load from restricted fuel flow
• Fuel seepage at banjo fittings, clamps or sealing rings

🛠️ Service Notes

• Renew the sealing washers, O-rings or seals that belong to the connection rather than reusing them, and do not put jointing compound on a fuel union to cure a weep
• Fit the hose without twist, and support and clip it along its run so it cannot chafe or hang its own load on the end fittings
• Keep the hose clear of hot exhaust and moving parts, and cap the open ends while working so nothing gets into the fuel system
• Tighten unions to the figure given in the workshop manual for your engine — overtightening a fuel fitting distorts the seat and makes the leak permanent
• Bleed the fuel system afterwards, then run the engine and check the whole run for weeps under working pressure, with no ignition sources near and a means of containing spilt fuel to hand

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 22394978 → Supersedes 21924754

OEM / Related Numbers

• 21924754 earlier number superseded by this part

Aftermarket / Verified Equivalents

• Related sealing ring: 20852765
• Related hollow screw: 941686
• Related clamps: 949746
• Related clamps: 949747

📦 Condition

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