20799728 Stud | Genuine Volvo Penta Part

🔧 Product Description

OEM fastening or load-distribution component used in the common-rail d5/d7 engine stud and structural fastening assembly. It restores the specified thread, strength, length and clamping geometry required by the original Volvo Penta assembly.

🚤 Compatibility

• Year Range: Approximately 2000s-2010s

⚙️ Key Features

• Stud for common-rail D5 and D7 engine stud and structural fastening
• 0.032 kg
• Supersedes 20405587
• Recorded against 28 TD and TAD-series applications in the cost records
• Washer 20799731 supersedes the consecutive old number 20405588 and carries the same 28 applications

🔌 Function

Provides a fixed threaded stud in the engine structure so a component can be located and clamped by a nut without repeatedly loading the casting thread.

⚠️ Common Signs of Failure

• Component found loose or able to move on its stud
• A weep at the joint the stud clamps as load is lost
• Stud found pulled out with the nut, its thread stripped in the casting
• Stud found stretched, bent or corroded thin at the exposed section
• Nut seized on the stud so it cannot be removed cleanly

🛠️ Service Notes

• Supersedes 20405587, so an order against the old number brings this stud
• Washer 20799731 supersedes 20405588 and carries the same 28 applications, so check whether the pair is to be renewed together
• Check the casting thread before refitting - a stud that has pulled once will pull again

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 20799728 → Supersedes 20405587

OEM / Related Numbers

• 20405587 earlier number superseded by this part

📦 Condition

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