1544128 Shaft | Genuine Volvo Penta Part

🔧 Product Description

This is a genuine Volvo Penta shaft from the lubricating and oil system group, used within the oil circuit drive arrangement on the 30- and 31-series marine diesel engines and their D40/D45 relatives. It is a precision rotating component that transmits drive within the lubrication assembly, and it is supplied as an individual service item rather than as part of a larger sub-assembly.

🚤 Compatibility

Typically suits:

• Volvo Penta AD30A
• Volvo Penta AQAD30A
• Volvo Penta TMD31A
• Volvo Penta TMD31B
• Volvo Penta TD31ACE
• Volvo Penta TD45B
• Volvo Penta D45BPP
• Volvo Penta MD30A
• Volvo Penta TAMD30A
• Volvo Penta TD30A
• Volvo Penta TMD30A
• Volvo Penta AD31
• Volvo Penta AD31B
• Volvo Penta TAMD31A
• Volvo Penta TAMD31B
• Volvo Penta D45A
• Volvo Penta TD40A
• Volvo Penta MD31A

• Engine Family: AD, AQAD, TMD, TD, D, MD, TAMD

⚙️ Key Features

• OEM Volvo Penta part number 1544128
• System group: Lubricating and Oil System
• Net weight 0.233 kg
• Fits AD30, AQAD30, MD30, TD30, TMD30, TAMD30, AD31, MD31, TMD31, TAMD31, TD40 and D45/TD45 series marine diesel engines
• Supplied as a single individual shaft for service replacement
• Engine type: Volvo Penta four-cylinder diesel

🔌 Function

The shaft transmits rotational drive within the engine's lubricating oil system, allowing the oil pump assembly to be turned and maintain oil pressure and circulation. Correct fit and condition of this shaft are essential to consistent lubrication of the engine's internal components.

⚠️ Common Signs of Failure

• Low or fluctuating oil pressure readings at the gauge or warning lamp
• Audible whine, knock or rattle traced to the oil pump drive area
• Visible wear, scoring or step formation on the shaft bearing surfaces
• Excessive play or end float in the driven assembly during inspection
• Metal particles or bronze-coloured debris found in the oil or filter

🛠️ Service Notes

• Handle and store the shaft so the bearing journals and seal running surfaces stay unmarked — a nick on a seal track will cause a leak that no new seal will cure
• Remove the protective coating and check the shaft for straightness, scoring, pitting and stepped wear at the journals, splines and seal areas before fitting
• Lubricate journals, splines and seal surfaces with clean oil of the grade specified for the assembly as it goes together, and renew the seals and any single-use nuts or locking devices disturbed on removal
• Draw bearings and couplings on square with a press or drawing tool that loads only the correct race — hammering a bearing onto a shaft marks the races and can distort the shaft
• Set end float, backlash and shim thickness to the values in the workshop manual for your unit, then turn the assembly by hand to confirm it is free before applying power

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 1544125 - oil-pump assembly
• 1544130 - oil-pump gear
• 1544131 - pump housing
• 1544127 - pin
• 470234 - bushing

📦 Condition

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