Gaskets and Seals - Engine, Exhaust, and Driveline Sealing Components

Gaskets and Seals - Critical Sealing Components for Your Vehicle

Gaskets and seals are the unsung heroes of automotive engineering. They prevent leaks of oil, coolant, fuel, vacuum, and exhaust gases between mating engine and driveline components. A failed gasket can cause anything from a minor oil leak to catastrophic engine damage if not addressed promptly.

At Restauco Parts, we stock thousands of gaskets and seals from the most trusted manufacturers including Felpro, Mahle, Victor Reinz, ITM, and OEM brands. Our catalog covers engine internals, exhaust systems, transmissions, differentials, and accessory components.

Engine Gaskets We Stock

Head Gaskets

The most critical gasket in your engine, sealing combustion pressure between the cylinder head and engine block. Available as MLS (Multi-Layer Steel) for modern engines and composite for older applications. Felpro PermaTorque is the industry standard for replacement.

Intake Manifold Gaskets

Seal the intake manifold to the cylinder head, preventing vacuum leaks and coolant leaks. Common failure point on many engines, especially GM 3.1L, 3.4L, and 4.3L V6 engines. Replace with updated Felpro design to prevent recurring failure.

Valve Cover Gaskets

Seal the valve cover to the cylinder head, preventing oil leaks from the top of the engine. Often replaced as preventive maintenance during major repairs. Modern designs use rubber or silicone for long service life.

Oil Pan Gaskets

Seal the oil pan to the engine block. Available as one-piece molded rubber, multi-piece with end seals, and silicone-bead-only depending on application.

Timing Cover Gaskets

Seal the front timing cover to the engine block. Commonly leaks oil and is often replaced during timing belt or chain service.

Rear Main Seals

Seal the rear of the crankshaft where it exits the engine block. Failure causes oil leaks at the bell housing. Replacement requires transmission removal on most vehicles.

Front Crankshaft Seals

Seal the front of the crankshaft. Often replaced during timing belt service or when oil leaks develop at the harmonic balancer.

Exhaust Gaskets We Stock

Exhaust Manifold Gaskets

Seal the exhaust manifold to the cylinder head. High-temperature failures cause exhaust leaks and ticking noises. Use OEM-quality multi-layer steel gaskets for best longevity.

Exhaust Pipe Donut Gaskets

Round metal-mesh gaskets that seal exhaust pipe joints. Common at the manifold-to-pipe connection and pipe-to-converter connection.

Exhaust Flange Gaskets

Flat metal gaskets sealing flat-flange exhaust connections. Available in various shapes (round, oval, triangular) for different applications.

Transmission and Driveline Seals

Transmission Pan Gaskets

Seal the transmission oil pan during fluid service or pan replacement. Available as rubber, cork, and reusable rubber-coated steel designs.

Axle Seals

Seal the axle shafts at the transmission, transfer case, or differential. Failure causes fluid leaks at the axle seal. Common replacement during axle service.

Differential Cover Gaskets

Seal the differential cover to the housing during fluid service or repair. Available as cork, rubber, and silicone-bead-only designs depending on application.

Transfer Case Seals

Seal the transfer case input and output shafts on 4WD and AWD vehicles. Replace if you see fluid leaks under the transfer case.

Top Gasket Brands We Carry

• Felpro - Industry standard for replacement gaskets. PermaTorque MLS head gaskets are the gold standard.
• Mahle (Victor Reinz) - OEM supplier for many manufacturers. Premium quality at competitive prices.
• ITM Engine Components - Cost-effective option for budget repairs.
• SCE Gaskets - Performance applications and racing engines.
• Apex / OEM - Direct OEM replacement gaskets.

Common Gasket Repair Scenarios

Blown Head Gasket Symptoms

• White exhaust smoke (coolant burning in cylinders)
• Oil and coolant mixing (creamy substance on oil cap or in radiator)
• Overheating without obvious leaks
• Loss of compression in one or more cylinders
• Bubbles in coolant overflow tank when engine running

Intake Manifold Gasket Failure

• Coolant leak at manifold-to-head joint
• Vacuum leak causing rough idle and lean codes
• Oil consumption with no visible external leak
• Coolant in oil (if internal coolant passage fails)

Valve Cover Gasket Leak

• Oil drips on top of engine
• Burning oil smell from engine bay
• Oil contamination on spark plug wells (causing misfires)
• Smoke from engine bay after parking

Frequently Asked Questions

How long do head gaskets last?

OEM head gaskets typically last the life of the engine (200,000+ miles) under normal operating conditions. Premature failure usually indicates overheating, improper coolant maintenance, or detonation issues. Always address the root cause when replacing a head gasket.

What is the difference between MLS and composite head gaskets?

MLS (Multi-Layer Steel) head gaskets use 3-5 layers of stamped steel for maximum sealing strength and are standard on modern engines. Composite gaskets use graphite or fiber materials and are typically used on older engines. Always match the original gasket type for your specific engine.

Do I need to use sealer with my new gasket?

Most modern gaskets do NOT require sealer - applying RTV or gasket sealant can actually cause leaks by preventing proper compression. Follow the manufacturer's instructions exactly. Some specific applications require sealer at corners or specific areas only.

Can I reuse gaskets?

No. Gaskets are single-use components designed to compress and form a seal. Reusing them after disassembly will result in leaks. Always replace gaskets when components are separated.

What is the difference between Felpro and OEM gaskets?

Felpro is an aftermarket manufacturer that often supplies updated gasket designs that are improvements over the original OEM part. For known problem engines (like GM 3.1L/3.4L V6 intake gaskets), Felpro replacement is often better than OEM.

Do you ship gaskets nationwide?

Yes. Most gaskets are small and ship affordably via USPS, UPS, or FedEx to all 50 US states.

Why Buy Gaskets and Seals from Restauco Parts

• Premium gaskets from Felpro, Mahle, Victor Reinz, and OEM suppliers
• Over 120,000 OEM and aftermarket parts in stock
• Vehicle-specific search for exact gasket fitment
• Complete gasket sets available for major repairs
• 30-day returns on uninstalled gaskets
• Trusted seller with 99% positive feedback (3,200+ verified sales)
• Knowledgeable support team - call 787-320-0777

Need help identifying the right gasket for your repair? Contact our team at [email protected] with your vehicle details and the gasket location.