21513426 O-Ring | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta elastomer O-ring used to seal the component joint specified for part number 21513426. The correct material, cross-section and diameter are required to maintain fluid or pressure containment under engine heat, vibration and repeated service cycles.

🚤 Compatibility

• Engine Family: V
• HP Range: 225-320 HP

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta sealing O-ring
• Factory-specified diameter and cross-section
• Designed for engine-temperature and fluid exposure
• Prevents leakage through the mating joint
• Direct replacement for the same numbered original seal
• Engine type: Volvo Penta marine or industrial engine system

🔌 Function

Forms a compressed seal between mating components to prevent fluid loss, air entry or pressure leakage.

⚠️ Common Signs of Failure

• Fluid seepage around the sealed joint
• Flattening, hardening or swelling of the O-ring
• Cuts, nicks or twisting during installation
• Loss of system pressure
• Recurring leakage caused by an incorrect seal size or damaged sealing groove

🛠️ 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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta V8-270-C-B, V8-270-CE-B, V8-300-C-A, V8-300-CE-A, V8-300-C-B, V8-320-C-B, V8-320-CE-B, V8-300-CE-B, V8-320-C-A, V8-320-CE-A, V8-225-C-A, V8-225-CE-A, V8-225-C-B, V8-225-CE-B, V8-270-C-A, V8-270-CE-A
• Volvo Penta 5.7GXiC-320-R, 5.7GXiCE-320-R, 5.7GXiC-P, 5.7GXiCE-P, 5.7GiC-300-P, 5.7GiCE-300-P, 5.7GiC-300-R, 5.7GiCE-300-R, 5.0GiC-225-S, 5.0GiCE-225-S, 5.0GXiC-P, 5.0GXiCE-P, 5.0GXiC-270-R, 5.0GXiCE-270-R