949722 O-Ring | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta O-ring weighing 0.002 kg and listed for 33 applications on TWD and D series engines. It supersedes 1543963 and 3588436, one of which earlier appeared in the catalogue as a gasket kit rather than a single ring.

🚤 Compatibility

• Engine Family: TWD, D
• HP Range: 145-480 HP

Full model list at the end of this description.

⚙️ Key Features

• 0.002 kg
• 33 applications on TWD and D series engines
• Supersedes 1543963 and 3588436

🔌 Function

Seals a static or slow-moving joint by being squeezed into its groove, the rubber flowing against both faces to close the gap.

⚠️ Common Signs of Failure

• Seeping or dripping at the joint after a period standing
• Ring flattened, nicked or torn when it comes out
• Rubber gone hard, glazed or chalky to the touch
• Pressure lost from the circuit the ring seals

🛠️ Service Notes

• One of the numbers this replaces was a gasket kit, so if you ordered that number in the past expect a single ring now and check what else the joint needs

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 949722 → Supersedes 1543963

OEM / Related Numbers

• 3588436 earlier number superseded by this part
• 925066 referenced in the part notes

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D6-340I-G, D6-380I-G, D6-440I-G, D6-480I-G, D6-300A-G, D6-340A-G, D6-380A-G, D6-440I-WJ-G, D6-480I-WJ-G, D6-300D-G, D6-340D-G, D6-380D-G, D6-440D-G, D6-480D-G, D6-400A-G, D6-440A-G, D6-300I-G, D6-480A-G
• Volvo Penta D4-175I-G, D4-230I-G, D4-270I-G, D4-320I-G, D4-300I-G, D4-150A-G, D4-230A-G, D4-270A-G, D4-320A-G, D4-300A-G, D4-145I-G
• Volvo Penta TWD1643GE
• Volvo Penta TWD1652GE
• Volvo Penta TWD1653GE
• Volvo Penta TWD1663GE