20713174 Fitting | Genuine Volvo Penta Part

🔧 Product Description

A genuine swivel fitting/nipple used in the TAD620VE mechanical injection-pump and fuel-pipe assembly. It provides the correctly oriented connection between the pump, fuel pipe or adjoining hose while maintaining fuel-system sealing.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD620VE

• Engine Family: TAD

⚙️ Key Features

• Confirmed in the TAD620VE injection-pump and fuel-system assembly
• Swivel configuration allows the adjoining line to align without twisting
• Thread and sealing geometry match the Volvo Penta pump connection
• Designed for diesel fuel exposure and engine vibration
• Must be installed with the specified seals and tightening procedure
• Keep all openings capped and clean during fuel-system service

🔌 Function

Provides a sealed, correctly aligned fuel connection in the injection-pump assembly.

⚠️ Common Signs of Failure

• Diesel leaks around the fitting
• Threads or sealing faces are damaged
• The swivel joint becomes loose
• Air enters the fuel system and causes hard starting

🛠️ Service Notes

• Identify the thread form and sealing arrangement before you start — a tapered thread seals on the thread itself, a parallel one seals on a washer, O-ring or cone face, and the two are made up in quite different ways
• Renew the sealing washer or O-ring, start the fitting by hand, and tighten to the figure in the workshop manual; a fitting drawn up hard to cure a leak usually splits the boss it is screwed into
• Use sealant or thread tape only where the manual specifies it, keep it off the leading threads and off any sealing face, and never allow any of it inside the passage
• Hold the fitting with a spanner on its hexagon while the pipe or hose union is tightened, so the torque is not passed into the casting behind it
• Check for weeping with the system at working pressure and temperature, not only cold

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 20460072 - Related injection-pump references
• 3803950 - Related injection-pump references
• 20460095 - Related fuel pipe
• 20555336 - Related injector references
• 3803952 - Related injector references
• 21178216 - Related injector references
• 3801291 - Related injector references
• 20735598 - Related injector references
• 3803964 - Related injector references
• 24426233 - Related nozzle
• 11700426 - Related gasket
• 11700424 - Related bracket

📦 Condition

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