20460870 Spacer Sleeve | Genuine Volvo Penta Part

🔧 Product Description

Precision spacing or load-distribution component used in the low-left-mounted 28 v / 140 a alternator installation. Its calibrated dimensions maintain the original clearance, alignment or clamping geometry.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD720VE
• Volvo Penta TAD721VE
• Volvo Penta TAD722VE
• Volvo Penta TAD520VE

• Engine Family: TAD
• Year Range: Approximately late 1990s-2000s

⚙️ Key Features

• 0.038 kg
• For the low-left-mounted 28 V / 140 A alternator installation
• Listed for 4 applications on TAD series engines
• The 0.034 kg spacer sleeve 20499929 does the same job in the belt-tensioning bracket arrangement

🔌 Function

Sets the clamped length and standoff at the alternator mounting so the unit sits in plane with the drive pulley when the screw is tightened.

⚠️ Common Signs of Failure

• Alternator pulling out of alignment with the crankshaft pulley
• Mounting joint that will not stay tight however hard it is pulled up
• Belt edge wear on one side only
• Sleeve found crushed, ovalled or worn shorter at the ends on removal

🛠️ Service Notes

• A crushed sleeve lets the mounting close up and pull the alternator out of plane - measure it rather than assuming it is sound
• Do not confuse it with the 0.034 kg sleeve 20499929, which belongs to the belt-tensioning bracket arrangement

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 20460893 original alternator
• 20580794 later alternator

OEM Reman Alternatives

• 3803960 remanufactured alternator

📦 Condition

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