858179 Washer | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta washer weighing 0.007 kg and listed for 4 applications. The source publishes no thickness, diameter or material for it, so it is identified by part number and fitment - do not substitute a washer of similar appearance from stock.

🚤 Compatibility

Typically suits:

• Volvo Penta 2003TB
• Volvo Penta 2003TB SOLAS
• Volvo Penta 2003T
• Volvo Penta 2003TR

⚙️ Key Features

• 0.007 kg
• 4 applications
• Identified by part number - no size is published

🔌 Function

Spreads the clamping load of its fastener across the mating face and keeps that face from being dug into.

⚠️ Common Signs of Failure

• Fastener losing torque or backing off in service
• Washer dished, cupped or flattened out of shape
• Bearing face scored or bitten into by the washer edge
• Corrosion between the washer and the face it sits on

🛠️ 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

📦 Condition

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