1698183 O-Ring | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta O-ring used in a serial-specific engine assembly on selected D9 and D12 industrial engines. The catalogue confirms the engine families, but the exact sealing position must be matched from the applicable engine schematic before ordering.

🚤 Compatibility

Typically suits:

• Volvo Penta TWD1240VE
• Volvo Penta D9A2A
• Volvo Penta TAD1241VE
• Volvo Penta TAD1242VE
• Volvo Penta TAD1241-42VE

• Engine Family: TWD, D, TAD

⚙️ Key Features

• Oil- and heat-resistant engine sealing O-ring
• Confirmed for selected D9A2A, TAD1241, TAD1242 and TWD1240 applications
• Used only at the catalogued engine assembly position
• Prevents fluid or pressure leakage at the mating joint
• Must be matched by groove size and engine serial number
• Engine type: Volvo Penta 9- and 12-litre industrial diesel

🔌 Function

The O-ring sits in a groove and is compressed on assembly, deforming to fill the gap between two mating surfaces and block leakage or moisture ingress. Its elasticity maintains that sealing contact as conditions vary.

⚠️ Common Signs of Failure

• Fluid weeping or moisture ingress at the joint
• Hardening, cracking or loss of elasticity on removal
• Flattening or permanent set so the ring no longer springs back
• Swelling or chemical attack from the fluid it contacts
• Nicks or cuts from incorrect installation

🛠️ Service Notes

• Always fit a new O-ring — never refit one that has been removed, as it has already taken a set in its groove
• Clean the groove and both sealing faces and check them for nicks, scoring and corrosion pitting; a damaged groove will leak however good the new seal is
• Smear the ring with a little clean lubricant compatible with the fluid it seals, then roll it into place by hand so it sits untwisted and fully in its groove
• Never lever an O-ring over a sharp edge or thread with a screwdriver; use a blunt plastic tool and protect any edge the ring has to pass
• Assemble the joint squarely and tighten to the figure and sequence given in the workshop manual for your engine — over-tightening extrudes the ring and causes the very leak you were curing

📦 Condition

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