1529230 Nut Set | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta nut set used in SAE No. 2 flywheel-housing installations equipped with Allison MT643 or MT653 automatic transmissions. The set secures the drive-coupling or flywheel-related connection in the specified transmission installation. The Volvo nut set is cross-referenced with Allison number ALL23014462. Associated washers such as 960142 can appear in the same arrangement but are separately serviced unless explicitly included with the supplied set.

🚤 Compatibility

Typically suits:

• Volvo Penta TWD740VE

• Engine Family: TWD
• Year Range: Approximately 1980s - 2000s

⚙️ Key Features

• OEM Volvo Penta part number 1529230
• Supplied as a nut set rather than a single loose nut
• System group: Engine
• Net weight: 0.06 kg
• Catalogued for the TWD740VE engine
• Engine type: Volvo inline 6-cylinder industrial diesel / Allison automatic transmission installation

📋 Kit Contents

• 1529230 primary locknut / coupling nut - 1
• 1529230 secondary locking or retaining nut component - 1
• 1529230 integrated locking elements supplied with the nut set - 1 set
• Volvo Penta does not allocate separate service part numbers to the individual components inside this nut set; every included component is serviced under set number 1529230
• 960142 washer is associated with the installation but is separately serviced and is not confirmed as included

🔌 Function

The nuts clamp and retain mated engine components at their fastening points, holding the joint under the correct load. Supplying them as a set allows all fasteners at the location to be renewed together during reassembly.

⚠️ Common Signs of Failure

• Thread damage, galling or seizing that prevents correct tightening
• Rounded or deformed flats that no longer accept a socket or spanner
• Loss of clamping load with fasteners backing off in service
• Corrosion or heat discolouration making removal difficult
• Leaks, vibration or component movement at the fastened joint

🛠️ Service Notes

• This set secures the SAE No. 2 flywheel-housing to an Allison MT643 or MT653 automatic transmission on the TWD740VE - a driveline fastener set, not the alternator or charging-terminal nuts listed elsewhere under this item type
• Cross-referenced to Allison part ALL23014462 - useful when working from Allison's own parts documentation rather than the Volvo Penta catalogue

🔄 Supersession & Cross Reference

OEM Supersession Chain

• ALL23014462 recognised Allison transmission cross-reference

OEM / Related Numbers

• ALL23014462
• 960142 related washer - separately serviced where shown

Other-Brand OEM Numbers

• Allison MT643
• Allison MT653

Aftermarket / Verified Equivalents

• Allison: ALL23014462

📦 Condition

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