1542236 Hub | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta pressed hub used to mount pulley 1542235 to the freshwater circulation-pump shaft. The hub establishes pulley position and belt alignment while transmitting belt torque into the pump. Volvo Penta service data specifies this hub for 31-series engines up to engine serial 2203116853 and 41-series engines up to engine serial 2204141572. During installation, the shaft is pressed to approximately 12mm protrusion according to the applicable pump instruction.

🚤 Compatibility

• Engine Family: MD, TMD, AD, AQAD, D, TD, TAMD, AQD
• HP Range: Approximately 90-200 HP
• Year Range: Approximately 1970s - 1990s

Full model list at the end of this description.

⚙️ Key Features

• OEM Volvo Penta part number 1542236
• System group: Cooling System
• Net weight: 0.347 kg
• Fits MD30, MD31, MD40, TMD, TAMD, AD, AQAD, AQD and D series 30/31/40/41 marine diesel engines
• Supplied as a single hub component
• Engine type: Volvo Penta freshwater-cooled marine diesel circulation pump

🔌 Function

The hub provides the machined rotating mounting point that locates and drives the cooling system pulley or pump component, keeping it concentric and correctly aligned under belt load. Correct hub condition is essential for reliable coolant circulation and belt tracking.

⚠️ Common Signs of Failure

• Visible wobble or runout when the assembly is turned by hand
• Bearing rumble, whine or grinding noise from the front of the engine
• Belt squeal, rapid belt wear or belt running off the pulley due to misalignment
• Coolant seepage or staining around the pump shaft and hub area
• Corrosion, scoring or cracking of the hub, or a loose fit on its shaft

🛠️ Service Notes

• Get the hub off with the correct puller rather than levering or hammering it; a hub driven off or on is enough to damage the shaft, the bearing behind it and the hub itself
• Clean and inspect the shaft, keyway or taper and check for scoring, wear steps and fretting; a hub will not run true on a damaged seat and the fault will come straight back
• Inspect and renew the seal that runs on or behind the hub while access is good, and check the sealing surface for a wear groove
• Draw the hub on square, fully home to the position the workshop manual for your engine gives, and tighten the retaining fastener to the manual figure with any specified locking method
• Check the drive belt alignment and run-out after fitting, then run the engine and watch for wobble, noise or a belt tracking off to one side

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 1542235 related pulley
• 838699 related circulation pump
• 859127 related circulation pump
• 3580782 related circulation pump

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta TMD40A, TMD40B, TMD40C
• Volvo Penta AD31, AD31B
• Volvo Penta AD41B, AD41A
• Volvo Penta AQAD40B, AQAD40A
• Volvo Penta TAMD31A, TAMD31B
• Volvo Penta TAMD40A, TAMD40B
• Volvo Penta TAMD41B, TAMD41A
• Volvo Penta TMD31A, TMD31B
• Volvo Penta TMD41A, TMD41B
• Volvo Penta AQAD30A
• Volvo Penta AQD40A
• Volvo Penta D41B
• Volvo Penta MD30A
• Volvo Penta MD31A
• Volvo Penta MD40A
• Volvo Penta TAMD30A
• Volvo Penta TD30A
• Volvo Penta TD31ACE
• Volvo Penta TD40A
• Volvo Penta TMD30A