20517048 Hexagon Nut | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta Hexagon Nut - Part Number: 20517048

This genuine Volvo Penta hexagon nut is an OEM service component used in the Inlet / Exhaust Hexagon Nut. It is manufactured to the original Volvo Penta dimensional, material and interface requirements for the documented Volvo Penta TD/TAD4-7 industrial diesel application. Technical identification: High-temperature hexagon nut used on the turbocharger/exhaust mounting stud. In service, it provides the specified clamp load and mechanical retention for the associated assembly. Selection must be confirmed by OEM part number 20517048, the exact model/product number, serial number and installed assembly configuration.

⚙️ Key Features

• Genuine Volvo Penta OEM hexagon nut

• OEM part number 20517048

• Documented application: Inlet / Exhaust Hexagon Nut

• Validated engine/application family: Volvo Penta TD/TAD4-7 industrial diesel

• Technical distinction: High-temperature hexagon nut used on the turbocharger/exhaust mounting stud

• Primary function: Provides the specified clamp load and mechanical retention for the associated assembly.

• Confirm dimensions, thread and strength class, inspect mating threads/contact faces and tighten to the Volvo Penta torque and locking specification.

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 20517048 (current/original OEM service reference)

OEM / Related Numbers:

• 20517048

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Inlet / Exhaust Hexagon Nut

Typically suits:

• Engine / product models:

• TAD420VE

• TD520GE

• TD720GE

• TAD530GE

• TAD531GE

• TAD532GE

• TAD730GE

• TAD731GE

• Engine / Application Family: Volvo Penta TD/TAD4-7 industrial diesel

• Serial / Configuration Note: Confirm thread, strength class and exact manifold/turbo mounting position.

🔌 Function

Provides the specified clamp load and mechanical retention for the associated assembly. Confirm dimensions, thread and strength class, inspect mating threads/contact faces and tighten to the Volvo Penta torque and locking specification.

Common signs of failure:

• Loosening, fretting or movement at the retained joint

• Damaged threads, rounded flats, cracking or permanent distortion

• Loss of clamp load or incorrect alignment of the mounted component

• Corrosion, heat damage or contact-face wear

• Repeat failure caused by wrong torque or damaged mating parts

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging