22903106 Hollow Screw | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta hollow screw from the Cooling System group, weighing 0.084 kg and listed for 19 D series engine applications. A hollow screw passes fluid through its centre, so the bore must be clear as well as the threads sound.

🚤 Compatibility

Typically suits:

• Volvo Penta D13C1-A MP
• Volvo Penta D13C2-A MP
• Volvo Penta D13C3-A MP
• Volvo Penta D13C4-A MP
• Volvo Penta D13B-E MG
• Volvo Penta D13B-E MG (FE)
• Volvo Penta D13B-E MH
• Volvo Penta D13B-E MH (FE)
• Volvo Penta D13B-N MH
• Volvo Penta D13B-N MH (FE)
• Volvo Penta D13C6-A MP
• Volvo Penta D13C1-A MH
• Volvo Penta D13C2-A MH
• Volvo Penta D13C3-B MG
• Volvo Penta D13C2-B MG
• Volvo Penta D13C4-B MG
• Volvo Penta D13C5-A MP
• Volvo Penta D13C2-A MG
• Volvo Penta D13C1-A MG

• Engine Family: D

⚙️ Key Features

• Hollow screw from the Cooling System group
• 0.084 kg
• Listed for 19 D series engine applications
• Passes fluid through its centre, so the bore matters as much as the thread

🔌 Function

Works as both fastener and passage - it clamps a banjo fitting or union down onto its seat while the fluid flows through the drilling in its shank.

⚠️ Common Signs of Failure

• Weep or drip from the fitting it clamps that returns after tightening
• Low flow or pressure downstream of the fitting
• Bore found blocked with sealant, scale or debris on removal
• Sealing faces scored, or the head deformed from overtightening
• Thread found pulled or stripped in the housing

🛠️ Service Notes

• Renew the sealing washers on both sides of the fitting whenever it is disturbed - tightening harder to cure a weep is what strips the thread
• Check the drilling is clear before fitting; a blocked hollow screw starves the circuit while looking perfectly sound

📦 Condition

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