Quicksilver Exhaust & Intake Manifold Gasket for GM‑based 3.0L MerCruiser/Volvo Penta — Model 815528, OEM Fit & Durability

The Quicksilver 815528 is a direct-replacement exhaust and intake manifold gasket engineered for select GM-based 3.0L MerCruiser and compatible Volvo Penta engines.

This gasket is designed to restore a reliable seal between the manifold and cylinder head on selected 3.0L marine engines used in MerCruiser sterndrives and inboards (1998 and newer for 3.0L, 1990–1997 for 3.0LX) as well as equivalent CID engines installed by Volvo Penta in North America. Quicksilver parts are made to meet or exceed original-equipment fit and durability expectations so repair work aligns with factory tolerances and service intervals. Always cross-check your engine serial and model information with the owner's or service manual before ordering.

Which engines and model years will this gasket fit?

This Quicksilver 815528 gasket covers GM-derived 3.0L MerCruiser engines produced in specified year ranges, plus the 3.0LX variants. It also fits certain 3.0L engines sold under Volvo Penta in North America that share the same cylinder dimensions and manifold interface. Verify compatibility using your engine's model number, serial range, and the vehicle's service documentation.

• Fits MerCruiser 3.0L sterndrives and inboards (3.0L from 1998+, 3.0LX from 1990–1997)
• Compatible with select Volvo Penta North America 3.0L/CID engines sharing GM platform
• Intended as a direct OE replacement for exhaust and intake manifold sealing surfaces
• Confirm fit by checking engine model/serial against your manual

How does this gasket improve engine performance and maintenance?

Replacing a worn or damaged manifold gasket restores a proper seal, limiting exhaust leaks and preventing air or coolant intrusion at the manifold joint. A correct seal helps the engine maintain designed backpressure and combustion stability, and reduces the chance of hot exhaust gases damaging nearby components. Using a factory-quality replacement reduces repeat repairs and preserves engine longevity when installed per service guidelines.

• Restores exhaust and intake sealing to prevent leaks and noise
• Protects adjacent parts from hot exhaust gas exposure
• Helps maintain correct manifold pressure for consistent engine operation
• Manufactured to match OEM dimensions for straightforward installation

What should I consider when installing the Quicksilver 815528 gasket?

Installation requires clean, flat mating surfaces and correct torque sequencing to ensure the gasket seats evenly. Remove old gasket material and inspect the manifold and head for warpage or damage; replace or machine parts as needed. Follow the engine maker’s torque specifications and tightening pattern to avoid leaks and premature gasket failure.

• Clean and inspect manifold and cylinder head mating faces before assembly
• Follow manufacturer torque values and tightening sequence exactly
• Replace corroded or warped components rather than reusing them
• Consult the service manual for any sealant or installation notes specific to your engine

Are there special storage or handling tips for this gasket?

Keep the gasket flat and stored in a cool, dry location until installation to prevent distortion or contamination. Avoid bending or creasing the gasket, and handle with clean hands or gloves to prevent oil and debris transfer that could affect the sealing surface. Using the part as soon as practical after purchase reduces risk of damage from long-term storage.

• Store in original packaging in a dry, temperature-stable place
• Do not fold, crease, or clamp gasket before installation
• Handle with clean gloves to preserve sealing faces
• Install within a reasonable timeframe after purchase to avoid degradation

Who is this part for? The Quicksilver 815528 gasket is intended for marine technicians, do-it-yourself boat owners, and repair shops servicing GM-based 3.0L MerCruiser and compatible Volvo Penta engines in North America. It is well suited for anyone replacing worn manifold seals who wants an OEM-quality, direct-fit solution that aligns with factory service procedures. If you’re unsure whether this is the correct gasket, check your engine’s serial/model data or consult a certified marine mechanic before purchase.