828383 Tab Washer | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta lock washer for propeller shaft nuts, listed for 25 mm and 30 mm shafts manufactured before V9338 - week 38 of 1993 - and weighing 0.011 kg. It is the only washer of the three listed that covers two shaft sizes, and it is the one to use on the older shafts: after that date the 25 mm washer is 873475 and the 30 mm is 873488. It supersedes part numbers 19508, 811935, 833916 and 947724, one of which was catalogued earlier simply as a washer and another as a spare part. Nut 828380 also replaces 811935 and 833916, so an old parts list quoting those numbers may need both items.

⚙️ Key Features

• For 25 mm and 30 mm shafts
• For shafts manufactured before V9338, week 38 of 1993
• The only one of the three lock washers covering two shaft sizes
• Supersedes 19508, 811935, 833916 and 947724
• 0.011 kg
• Shaft diameter: 25 mm and 30 mm
• Shaft manufactured: before V9338 (week 38, 1993)
• Fits: Volvo Penta propeller shafts, 25 mm and 30 mm, manufactured before week 38 of 1993

🔌 Function

Locks the propeller shaft nut so it cannot back off under vibration and load reversal.

⚠️ Common Signs of Failure

• Shaft nut found slack, or the washer tab broken away
• Propeller with detectable movement on its taper
• Washer cracked at a fold, or already flattened out
• Corrosion between washer and nut face

🛠️ Service Notes

• Check the shaft's manufacturing date - this washer is for shafts made before week 38 of 1993, and 873475 and 873488 cover 25 mm and 30 mm shafts made after it
• Single use: fit a new washer whenever the shaft nut is disturbed
• Check whether nut 828380 is also needed, since it replaces two of the same old numbers
• V9338 means week 38 of 1993; the washer differs between shafts made before and after that date

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 828383 → Supersedes 19508 → Supersedes 811935 → Supersedes 833916 → Supersedes 947724

OEM / Related Numbers

• 947724 earlier number superseded by this part
• 19508 earlier number superseded by this part

📦 Condition

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