23075243 Washer | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta washer weighing 0.006 kg, superseding part number 20405816 and covering its applications.

⚙️ Key Features

• Washer
• 0.006 kg
• Supersedes 20405816 and covers its applications

🔌 Function

Spreads a fastener's clamping load over the surface beneath it and gives the head or nut a clean, square bearing face.

⚠️ Common Signs of Failure

• Fastener found loose, with the joint no longer clamped
• Washer dished, coned or picked up on one face
• Bright fretting marks on the surface underneath
• Corrosion between the washer and its mating face

🛠️ Service Notes

• Check you are fitting the same type of washer that came out — plain, hardened, sealing and locking washers are not interchangeable, and the wrong one either fails to seal or fails to hold
• Treat sealing washers on fuel, oil and coolant unions as single-use; they seal by deforming onto the faces, so a used one will not seal reliably a second time
• Clean the seating faces and make sure the washer sits flat and square, fully under the head or nut, before tightening — a washer trapped on a chamfer or edge will crush unevenly
• Tighten the fastener to the figure given in the workshop manual for your engine, and account for every washer on reassembly so none is left loose inside a housing or the engine bay

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 23075243 → Supersedes 20405816

OEM / Related Numbers

• 20405816 earlier number superseded by this part

📦 Condition

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