20742560 O-Ring | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta elastomer O-ring used in selected heavy-duty engine sealing and overhaul-kit applications. It appears in Volvo Penta gasket-kit families including 21148927 and 21148929 and must be fitted only in the groove and fluid service specified by the applicable engine catalogue.

🚤 Compatibility

• Engine Family: D, TAD

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta precision O-ring
• Included in selected engine gasket and overhaul kits
• Associated with gasket-kit references 21148927 and 21148929
• OEM-controlled material, cross-section and inside diameter
• Must not be substituted by visual size alone
• Engine type: Heavy-duty Volvo Penta inline-six diesel engine sealing system

🔌 Function

Creates a static fluid or pressure seal at the designated engine joint, preventing oil, coolant, fuel or air leakage according to its installed location.

⚠️ Common Signs of Failure

• Fluid seepage at the sealed joint
• Flattened, hardened or cut O-ring
• Swelling or softening from incorrect material compatibility
• Recurring leakage caused by damaged grooves or 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

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 21148927 related gasket kit
• 21148929 related gasket kit

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D13C1-A MP, D13C2-A MP, D13C3-A MP, D13C4-A MP, D13B-A MP, D13B-H MP, D13B-G MP, D13B-E MG, D13B-E MG (FE), D13B-E MH, D13B-E MH (FE), D13B-F MG, D13B-F MG (FE), D13B-K MP, D13B-N MH, D13B-N MH (FE), D13B-B MP, D13B-D MP, D13B-J MP, D13B-C MP, D13C5-B MP, D13C6-A MP, D13C1-A MH, D13C2-A MH, D13C5-A MP, D13C2-A MG, D13C1-A MG
• Volvo Penta TAD1341-43GE-B, TAD1341VE, TAD1341GE
• Volvo Penta TAD1344-45GE-B, TAD1344VE, TAD1344GE
• Volvo Penta TAD1342VE, TAD1342GE
• Volvo Penta TAD1343VE, TAD1343GE
• Volvo Penta TAD1345GE, TAD1345VE
• Volvo Penta TAD1350GE, TAD1350VE
• Volvo Penta TAD1351GE, TAD1351-53VE
• Volvo Penta TAD1340VE
• Volvo Penta TAD1352GE
• Volvo Penta TAD1353GE
• Volvo Penta TAD1354GE
• Volvo Penta TAD1355GE
• Volvo Penta TAD1360-62VE
• Volvo Penta TAD1363-65VE
• Volvo Penta TAD1371-75VE