837709 Hollow Screw | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta hollow screw, connected together with the oil pressure pipe for the power take-off. It weighs 0.014 kg, is listed for 29 applications across the MD, TMD, TD, D, TAMD and TAD series, and supersedes part number 865203.

🚤 Compatibility

• Engine Family: MD, TMD, TD, D, TAMD, TAD

Full model list at the end of this description.

⚙️ Key Features

• Connects together with the oil pressure pipe for the power take-off
• 0.014 kg
• Supersedes 865203
• 29 applications across six engine series

🔌 Function

Clamps the oil pressure pipe to its port while carrying the oil through its own bore, so the fastener doubles as the flow path.

⚠️ Common Signs of Failure

• Oil weeping from the pipe union
• Oil pressure reading low or erratic at the take-off
• Sealing washers flattened, hardened or stuck to the faces
• Internal bore partly blocked with sludge or debris
• Thread or hexagon damaged from over-tightening

🛠️ Service Notes

• Renew both sealing washers each time the union is disturbed, as reused washers are the usual cause of a repeat leak
• Check the bore is clear before fitting, since a blocked hollow screw starves the pressure feed

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 837709 → Supersedes 865203

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta TAMD122A, TAMD122A/C, TAMD122D, TAMD122P-A
• Volvo Penta MD100A, MD100B, MD100B-CC
• Volvo Penta TAD120AHC, TAD120BHC, TAD120CHC
• Volvo Penta TAMD120A, TAMD120B
• Volvo Penta TD100AHC, TD100CHC
• Volvo Penta TD120AHC, TD120BHC
• Volvo Penta TMD100A, TMD100C
• Volvo Penta TMD120A, TMD120B
• Volvo Penta D100BHC
• Volvo Penta MD120A
• Volvo Penta TAD121CHC
• Volvo Penta TAMD102A
• Volvo Penta TAMD121D
• Volvo Penta TD121CHC
• Volvo Penta TMD102A
• Volvo Penta TMD121C
• Volvo Penta TMD122A