1543978 Bushing | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta bushing from the Lubricating and Oil System group, used within the oil circuit of Volvo Penta's 16-litre industrial and marine diesel engines. It is supplied as an individual service item and is also included in the engine overhaul kit, making it a standard replacement during a full rebuild. This bushing supersedes the earlier part number 1543531.

🚤 Compatibility

• Engine Family: TWD, TID, TD, TAMD, TAD

Full model list at the end of this description.

⚙️ Key Features

• OEM Volvo Penta part number 1543978
• System group: Lubricating and Oil System
• Included in the engine overhaul kit
• Supersedes previous part number 1543531
• Fits TWD1620/1630, TID162, TD164, TAD1630/1631 and TAMD162/163/165 series engines
• Engine type: Volvo Penta TAMD162 / TAMD165 diesel

📋 Kit Contents

• Included in overhaul kit.

🔌 Function

The bushing acts as a precision-fit sleeve within the lubricating and oil system, supporting or guiding a moving or mating component and maintaining correct clearance for oil flow and sealing. Correct bushing fit helps preserve oil pressure and prevents wear of the surrounding housing or bore.

⚠️ Common Signs of Failure

• Visible wear, scoring or ovality on the bushing bore
• Loss of press fit, allowing the bushing to rotate or move in its housing
• Oil leakage or a drop in oil pressure at the affected location
• Excessive play or noise from the component the bushing supports
• Metal debris or bushing material found in the oil or filter

🛠️ Service Notes

• Check the housing bore and the shaft or pin that runs in the bushing before fitting a new one; a worn or scored mating part will chew out a new bushing quickly
• Press bushings in squarely with a press and a correctly sized drift or mandrel — hammering one straight in distorts it and ruins the fit
• Where the bushing has an oil hole, groove or slot, line it up with the feed in the housing before it is pressed home
• Lubricate on assembly with the oil or grease specified for that part of the engine or drive, and follow the manual if it calls for the bore to be checked or sized after fitting
• Do not soak a self-lubricating bushing in solvent or degreaser, and keep sealant and thread lock off the running surface

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 1543978 → Supersedes 1543531

OEM / Related Numbers

• 1543531 earlier number superseded by this part
• 276150 - oil-pump overhaul kit containing 1543978
• 1556730 - related oil-pump assembly
• 3825153 - related oil-pump assembly
• 1543965 - related oil-pump bracket

📦 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 TAD1630G, TAD1630GE, TAD1630P, TAD1630PB
• Volvo Penta TID162AG, TID162AGP, TID162AP, TID162APB
• Volvo Penta TWD1630G, TWD1630P, TWD1630PP, TWD1630V
• Volvo Penta TAMD165A, TAMD165C, TAMD165P
• Volvo Penta TAD1631GE, TAD1631G
• Volvo Penta TAMD163A-A, TAMD163P-A
• Volvo Penta TD164KAE
• Volvo Penta TWD1620G