990058 O-Ring | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta o-ring weighing 0.023 kg and listed for 32 applications across the D and TAD series. It supersedes part number 3818517.

🚤 Compatibility

• Engine Family: D, TAD

Full model list at the end of this description.

⚙️ Key Features

• 0.023 kg
• 32 applications across the D and TAD series
• Supersedes 3818517

🔌 Function

Seals a static joint by being squeezed into its groove, blocking the escape path between the two faces.

⚠️ Common Signs of Failure

• Seep or drip at the joint
• Ring flattened, taking a permanent set
• Rubber hardened, cracked or gone brittle
• Nibbled or extruded edge where it has been pinched
• Ring swollen or gone soft after contact with the wrong fluid

🛠️ Service Notes

• Always fit a new ring on reassembly and lubricate it with the fluid it seals before it goes in
• Check the groove and the spigot for burrs - a nicked groove will cut a new ring straight away

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 990058 → Supersedes 3818517

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D11C1-A MP, D11C3-A MP, D11C2-A MP, D11C4-A MP, D11B3-A MP, D11B4-A MP, D11A-A, D11A-B, D11A-C, D11A-E, D11B2-A MP, D11A-C MP, D11A-D MP, D11A-E MP, D11A-C (IPS), D11B1-A MP
• Volvo Penta D9A2J, D9A2G, D9A2L MH, D9A2D, D9A2B, D9A2F, D9A2K, D9A2H, D9A2M MP, D9A2A, D9A2C, D9A2E
• Volvo Penta TAD1180-83VE
• Volvo Penta TAD1380-82GE
• Volvo Penta TAD1381-85VE
• Volvo Penta TAD1384-85VE-IWP