20930686 Flange Screw | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta Flange Screw - Part Number: 20930686

OEM fastening or load-distribution component used in the tad550ge crankcase-ventilation and oil-separator system. It restores the specified thread, strength, length and clamping geometry required by the original assembly.

⚙️ Key Features

• Manufactured to the original Volvo Penta dimensional and material specification

• Maintains correct fit, alignment and service access

• Designed for diesel-engine heat, vibration and operating load

• Direct replacement for a worn, damaged or missing original component

• Must be matched by part number, engine product and serial/configuration

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 20930686 (OEM catalogue reference)

OEM / Related Numbers:

• 20930510 crankcase oil separator

• 20792362 and 21038626 separator gaskets

• 20798824 oil-return line

• 20798831 and 20798837 attaching clamps

• 20799065 hose

• 20799590 tube

• 20799616 and 20799617 breather hoses

• 20799673 hose clamp

• 20798898 retaining plate

• 20841133 check/inhibitor valve

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• TAD550GE crankcase-ventilation and oil-separator system

Typically suits:

• Engine models:

• TAD550GE; TAD551GE

• HP Range: Approximately 180-220 HP, depending on generator rating

• Engine Type: 5.7 L six-cylinder common-rail generator diesel

• Year Range: Approximately 2000s-2010s

🔌 Function

Provides the specified clamping, locating or load-distribution function so the connected assembly remains secure and aligned.

Common signs of failure:

• Fastener repeatedly loosens under vibration

• Damaged, stretched, corroded or stripped threads

• Loss of clamping force or component alignment

• Fretting, movement or cracking around the secured joint

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging