804478 Hollow Screw | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta hollow screw weighing 0.066 kg and listed for 37 applications across the MD, TMD, D, TD, AQD and TAMD series. A hollow screw carries fluid through its centre as well as clamping, so it is a banjo-style fitting rather than a plain bolt.

🚤 Compatibility

• Engine Family: MD, TMD, D, TD, AQD, TAMD, TID

Full model list at the end of this description.

⚙️ Key Features

• 0.066 kg
• 37 applications across six engine series
• Hollow drilled screw for fluid transfer
• Common across naturally aspirated and turbocharged ranges
• Quantity varies by assembly, most commonly two

🔌 Function

Clamps a fitting down while passing oil or fuel through its drilled centre.

⚠️ Common Signs of Failure

• Oil or fuel weeping from under the head or around the banjo
• Central drilling partly blocked, starving the component it feeds
• Head or thread damaged from overtightening
• Sealing washers crushed flat or missing

🛠️ Service Notes

• Always fit new sealing washers either side of the banjo
• Blow the central drilling through and check it is clear before assembly
• Tighten to the specified figure — a hollow screw is easily stretched or snapped

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta TD120C, TD120A, TD120G, TD120GG PP, TD120GG
• Volvo Penta D100A, D100BHC, D100B
• Volvo Penta MD100A, MD100B, MD100B-CC
• Volvo Penta TAMD60A, TAMD60B, TAMD60C
• Volvo Penta TD100AHC, TD100A, TD100AG
• Volvo Penta TD70CHC, TD70G, TD70B
• Volvo Penta AQD70B, AQD70C
• Volvo Penta D70CHC, D70B
• Volvo Penta MD70B, MD70C
• Volvo Penta TAMD70B, TAMD70C
• Volvo Penta TMD22B, TMD22P-C
• Volvo Penta TMD70C, TMD70B
• Volvo Penta D120A
• Volvo Penta MD22P
• Volvo Penta TAMD22P-B
• Volvo Penta TID120FG
• Volvo Penta TMD100A