994078 Stud | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta stud weighing 0.109 kg and listed for 8 applications across the TAD and D engine series. Important: the old part number 21269432 is replaced by TWO current studs - this one and 994077, which is 175 mm long - so an order placed against 21269432 for this number alone may come up short. Check which of the pair your job needs, or whether it needs both.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD841-43GE
• Volvo Penta D16C-A MG
• Volvo Penta D16C-A MH
• Volvo Penta D16C-B MH
• Volvo Penta D16C-C MH
• Volvo Penta TAD851-53GE
• Volvo Penta D16C-D MH
• Volvo Penta TAD840GE-B

• Engine Family: TAD, D

⚙️ Key Features

• 0.109 kg
• Listed for 8 applications
• Fits TAD and D series engines
• One of two current studs replacing the old number 21269432 - the other is the 175 mm stud 994077
• Quantity varies by assembly, most commonly two
• Also supersedes Volvo part number 3809130

🔌 Function

Screws permanently into the casting to give a fixed threaded spigot for locating and clamping the component with a nut.

⚠️ Common Signs of Failure

• Nut turning the stud rather than tightening against the joint
• Stud unscrewing with the nut on dismantling
• Thread stretched, stripped or corroded
• Stud snapped at the casting face

🛠️ Service Notes

• If your list calls for 21269432, check both 994078 and 994077 before ordering - one old number now covers two current studs
• Check the tapped hole in the casting before fitting the new stud

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 994078 → Supersedes 21269432

📦 Condition

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