1543839 Thrust Bearing | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta thrust bearing from the Engine group, used to control crankshaft axial float and absorb end-thrust loads within the block. It is specified for the 16-litre TWD, TID, TAD and TAMD engine families, covering marine, genset and industrial variants. Supplied as an individual bearing so worn or scored parts can be replaced during crankshaft or main bearing service.

🚤 Compatibility

• Engine Family: TWD, TID, TD, TAMD, TAD
• HP Range: Approximately 468-770 HP
• Year Range: Approximately 1987-2005

Full model list at the end of this description.

⚙️ Key Features

• OEM Volvo Penta part number 1543839
• System group: Engine
• Net weight 0.26 kg
• Fits TWD1620G/TWD1630, TID162, TAD1630/TAD1631 and TAMD162/TAMD163/TAMD165 series engines
• Individual thrust bearing for crankshaft end-float control
• Engine type: 16.1L inline-six turbocharged/aftercooled diesel

🔌 Function

The thrust bearing locates the crankshaft axially within the engine block and carries the fore-and-aft thrust loads transmitted through the drivetrain. It maintains correct crankshaft end-float so timing, main bearing and seal alignment stay within specification.

⚠️ Common Signs of Failure

• Excessive crankshaft end-float measured during inspection
• Scoring, scuffing or wiped bearing surfaces
• Metallic debris or bearing material found in the oil or filter
• Knocking or rumbling noise under load or when engaging drive
• Repeated rear crankshaft seal leakage caused by axial movement

🛠️ Service Notes

• Thrust bearings in this range are supplied in stepped oversizes (commonly 0.25/0.50/0.75 mm) that are only a few grams apart in weight - confirm the correct grade for this crankshaft rather than assuming this is the standard size
• Measure crankshaft end float before removal and again after fitting, and select the size that matches the main bearing kit fitted rather than by number alone

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 1543704 camshaft
• 1543899 camshaft gear
• 946671 and 965220 camshaft-gear screws
• 1556947 tappet
• 20381951 push rod

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta TAMD162C-C, TAMD162A, TAMD162B, TAMD162C, TAMD162C-B
• Volvo Penta TID162AG, TID162AGP, TID162AP, TID162APB
• Volvo Penta TAD1630G, TAD1630GE, TAD1630P
• Volvo Penta TWD1630G, TWD1630P, TWD1630V
• Volvo Penta TAD1631GE, TAD1631G
• Volvo Penta TAMD163A-A, TAMD163P-A
• Volvo Penta TAMD165A, TAMD165C
• Volvo Penta TD164KAE
• Volvo Penta TWD1620G