993579 Stud | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta stud weighing 0.027 kg and listed for 19 applications across the D and HS series. It supersedes part number 479971, which the earlier records carried only as a spare part rather than under its own name, so an older list may not describe it as a stud at all.

🚤 Compatibility

Typically suits:

• Volvo Penta D6-300I-F
• Volvo Penta D6-340I-G
• Volvo Penta D6-380I-G
• Volvo Penta D6-440I-G
• Volvo Penta D6-480I-G
• Volvo Penta HS85IVE-A
• Volvo Penta D6-440I-WJ-G
• Volvo Penta D6-480I-WJ-G
• Volvo Penta D4-175I-G
• Volvo Penta D4-230I-G
• Volvo Penta D4-270I-G
• Volvo Penta D4-320I-G
• Volvo Penta D4-300I-G
• Volvo Penta D6-300I-G
• Volvo Penta D6-330I-F
• Volvo Penta D6-370I-F
• Volvo Penta D6-435I-F
• Volvo Penta D4-145I-G
• Volvo Penta D4-175 VG

• Engine Family: D, HS
• HP Range: 145-480 HP

⚙️ Key Features

• 0.027 kg
• Listed for 19 applications
• Fits D and HS series
• Supersedes 479971

🔌 Function

Screws permanently into the casting to give a fixed threaded spigot, so the component can be located and clamped with a nut without repeatedly cutting the parent thread.

⚠️ Common Signs of Failure

• Nut will not hold torque, or turns the stud instead of tightening
• Stud unscrewing with the nut when the joint is dismantled
• Thread stripped, stretched or corroded
• Stud snapped level with the casting face

🛠️ Service Notes

• Check the tapped hole in the casting before fitting a new stud - if that thread has pulled, a new stud alone will not fix the joint
• Wind the stud in to the correct depth and let it settle before torquing the nut

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 993579 → Supersedes 479971 → Supersedes 924077 → Supersedes 17030

OEM / Related Numbers

• 479971 earlier number superseded by this part
• 924077 earlier number superseded by this part
• 17030 earlier number superseded by this part

📦 Condition

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