21669297 O-Ring | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta sealing component used with the associated exhaust-manifold installation. It seals the specified manifold, pipe or cooling connection and is specified for the temperature, pressure and mating geometry at that position.

🚤 Compatibility

• Engine Family: V
• HP Range: 200-430 HP

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta position-specific seal
• Designed for exhaust heat or the assigned fluid
• Prevents leakage at the mating joint
• Engine type: Turbocharged Volvo Penta marine or industrial diesel

🔌 Function

Seals the specified manifold, pipe or cooling connection, preventing gas or fluid leakage and preserving joint pressure.

⚠️ Common Signs of Failure

• Soot, oil or coolant seepage
• Gasket blowout or O-ring extrusion
• Hardening, cracking or flattening
• Recurring leakage from warped mating faces
• Heat damage around the joint

🛠️ 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

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 21669277 - associated exhaust manifolds
• 21669279 - associated exhaust manifolds
• 21669281 - associated gasket

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta V8-350-C-R, V8-350-CE-R, V8-380-C-R, V8-380-CE-R, V8-430-C-R, V8-300-C-M, V8-300-CE-M, V8-350-C-M, V8-350-CE-M, V8-300-C-N, V8-300-CE-N, V8-350-C-N, V8-350-CE-N, V8-380-C-M, V8-380-CE-M, V8-380-CE-A, V8-380-C-B, V8-380-CE-B, V8-380-C-D, V8-380-CE-D, V8-430-CE-D, V8-350-C-D, V8-350-CE-D, V8-380-C-A, V8-380-CE-J, V8-380-C-J, V8-430-CE-J, V8-430-C-J, V8-350-C-H, V8-350-CE-H, V8-350-C-J, V8-350-CE-J, V8-300-C-R, V8-300-CE-R, V8-430-CE-R, V8-430-C-M, V8-430-CE-M, V8-300-C-K, V8-300-CE-K, V8-350-C-K, V8-350-CE-K, V8-380-C-K, V8-380-CE-K, V8-430-C-K, V8-430-CE-K, V8-300-C-P, V8-300-CE-P, V8-350-C-P, V8-350-CE-P, V8-380-C-P, V8-380-CE-P, V8-430-C-P, V8-300-CE-G, V8-300-C-G, V8-300-C-H, V8-300-CE-H, V8-300-C-J, V8-300-CE-J, V8-350-C-G, V8-350-CE-G, V8-380-C-N, V8-380-CE-N, V8-430-C-N, V8-430-CE-N, V8-430-CE-P, V8-300-C-S, V8-300-CE-S, V8-350-C-S, V8-350-CE-S
• Volvo Penta V6-200-N, V6-200-C-N, V6-200-CE-N, V6-240-M, V6-240-C-M, V6-240-CE-M, V6-280-M, V6-280-C-M, V6-280-CE-M, V6-280-J, V6-280-CE-J, V6-280-G, V6-280-C-G, V6-280-CE-G, V6-280-C-J, V6-240-N, V6-240-C-N, V6-240-CE-N, V6-280-N, V6-280-C-N, V6-240-CE-K, V6-280-CE-K, V6-200-P, V6-200-C-P, V6-200-CE-P, V6-250-P, V6-250-C-P, V6-250-CE-P, V6-280-P, V6-280-C-P, V6-280-CE-P, V6-200-C-G, V6-200-G, V6-200-J, V6-200-C-J, V6-280-CE-N, V6-200-M, V6-200-C-M, V6-250-O, V6-250-C-O, V6-250-CE-O, V6-240-C-G, V6-240-CE-G, V6-240-G, V6-240-J, V6-240-CE-J, V6-240-C-J, V6-200-R, V6-200-C-R, V6-250-R, V6-250-C-R, V6-250-CE-R, V6-280-R, V6-280-C-R, V6-280-CE-R
• Volvo Penta 3.0GLM-C, 3.0GLP-C, 3.0GLP-D, 3.0GLP-E, 3.0GLP-J, 3.0GLP-N, 3.0GXiC-J, 3.0GXi-J