20797255 Flange Screw | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta Flange Screw - Part Number: 20797255

OEM fastening or load-distribution component used in the flywheel-housing, rear-engine and sealing-cover assembly. It restores the specified thread, strength, length and clamping geometry required by the original Volvo Penta assembly.

Application note: Catalogue length: approximately 160 mm.

⚙️ Key Features

• Manufactured to the original Volvo Penta dimensional and material specification

• Maintains correct fit, alignment and service access in the designated assembly

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

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

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

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 20797255 (OEM catalogue reference)

OEM / Related Numbers:

• 21133296; 21280544; 21933436 flywheel-housing references

• 21486084 rear crankshaft lip seal

• 20800033 sealing cover

• 969011 gasket

• 21665303 adapter

• 20792329 retainer

• 20794126 bushing

• 21133308 bracket

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Flywheel-housing, rear-engine and sealing-cover assembly

Typically suits:

• Engine models:

• TAD560VE; TAD734GE; TAD752GE

• HP Range: Approximately 170-300 HP, depending on engine rating

• Engine Type: Four- and six-cylinder common-rail Volvo Penta industrial diesel

• Year Range: Approximately 2000s-2010s

🔌 Function

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

Common signs of failure:

• Fastener or retained component repeatedly loosens

• Damaged, stretched, corroded or stripped threads/contact surfaces

• 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