975309 O-Ring | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta o-ring weighing 0.002 kg and listed for 17 applications on D series engines. Five o-rings in this run share that same published weight — 975309, 975672, 975673, 975687 and 975691 — so mass is no help at all in telling them apart. Order on the part number from the parts list for your engine.

🚤 Compatibility

Typically suits:

• Volvo Penta D6-340I-G
• Volvo Penta D6-380I-G
• Volvo Penta D6-440I-G
• Volvo Penta D6-480I-G
• Volvo Penta D6-300A-G
• Volvo Penta D6-340A-G
• Volvo Penta D6-380A-G
• Volvo Penta D6-440I-WJ-G
• Volvo Penta D6-480I-WJ-G
• Volvo Penta D6-300D-G
• Volvo Penta D6-340D-G
• Volvo Penta D6-380D-G
• Volvo Penta D6-440D-G
• Volvo Penta D6-480D-G
• Volvo Penta D6-400A-G
• Volvo Penta D6-440A-G
• Volvo Penta D6-300I-G

• Engine Family: D
• HP Range: 300-480 HP

⚙️ Key Features

• 0.002 kg
• 17 applications on D series engines
• Shares its published weight with four other o-rings here, so order by number

🔌 Function

Seals a static joint by being squeezed into a groove, the trapped rubber blocking the path fluid or gas would take between the two faces.

⚠️ Common Signs of Failure

• Fluid weeping or dripping from the joint
• Ring flattened, hardened or cracked when it comes out
• Ring swollen or gone soft, pointing to the wrong material for the fluid
• Nicks or a spiral twist from being rolled in dry
• Pressure loss or air drawn in at the joint

🛠️ Service Notes

• Fit a new ring every time the joint is opened, as a used one has already taken its set
• Lubricate the ring and the lead-in chamfer before assembly so it seats without twisting

📦 Condition

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