Buy Toyota Sequoia Engine Valve Cover Gasket Sets

A Toyota Sequoia engine valve cover gasket set (also called a rocker cover gasket, cam cover gasket, or cylinder head cover seal) keeps engine oil inside the top of the engine where the cams and valvetrain live. On V-type engines like the Sequoia's V8s and the newer V6 hybrid, there are two covers-one for each cylinder head. When the gasket hardens or shrinks, oil can seep out. (Wikipedia)

"Toyota Sequoia" spans three generations with different engines.
• 2001-2007: 4.7L 2UZ-FE V8
• 2008-2022: 5.7L 3UR-FE V8 (with some early 4.7L and 2010-2012 4.6L 1UR-FE)
• 2023-present: 3.4L twin-turbo V6 hybrid (V35A-FTS)
Gasket sets are engine-specific, so always match the set to your model year and engine code. (Wikipedia)

Typical signs of a failing valve cover gasket or valve cover seal:
• Oil smell, light smoke, or wet oil around the cover edge
• Oil in spark-plug tubes causing a misfire (often shows up as a "Check Engine" light)
• Oil drops on the driveway or on hot exhaust parts
Oil inside spark-plug tubes can lead to misfires and rough running-replace tube seals with the gasket if your engine uses them. (felpro.com, NGK)

Heat cycles age rubber. Add crankcase pressure from a clogged PCV (positive crankcase ventilation) system, and oil gets pushed past gaskets and seals. That's why a leak can return if the PCV system isn't healthy. (AA1Car, ASE, MOTOR)

A Toyota Sequoia valve cover gasket set typically includes:
• One or two molded rubber or silicone gaskets (two for V-engines)
• Spark-plug tube seals (on engines that use them)
• New bolt grommets for the cover fasteners
These pieces work together to keep oil inside and out of the plug wells. (felpro.com)

Modern sets use molded rubber or silicone for durability and heat/oil resistance. Some applications also use cork-rubber blends. Rubber/silicone is common on newer engines because it stays flexible and seals well with low bolt torque. (felpro.com)

Any oil leak near a hot exhaust can be a fire risk. If you see smoke or smell burning oil, fix the leak soon and don't ignore warning signs. NHTSA recall notices across brands warn that oil leaking onto an exhaust manifold can increase fire risk-illustrating why even "small" leaks matter. (NHTSA)

• Clean the area, then drive and re-inspect.
• Use fluorescent oil dye and a UV light to pinpoint the source when the leak is hard to see. It's a standard shop method for oil-based fluids. (Vehicle Service Pros, Tracerproducts.com)

Basic steps most home mechanics follow (always check your service info for your exact engine):

1. Remove engine cover, air ducting as needed, coils, and hoses from the valve/rocker cover.
2. Lift the cover, remove the old gasket, tube seals, and grommets.
3. Clean the cover channel and head surface-no old sealant left behind.
4. Install new tube seals and grommets (if used), then press the new gasket into the cover.
5. Apply a tiny dab of RTV only at the "corner joints" where the head meets timing covers/cam caps-nowhere else.
6. Refit the cover and tighten fasteners in sequence (center-out), to the manufacturer's low torque spec.
   These are standard best practices from a major gasket manufacturer. (felpro.com)

• Start the engine and check for seepage.
• Clear any diagnostic codes and test-drive.
• Re-inspect after a few heat cycles.
• If misfires were caused by oil-soaked plugs or coil boots, replace those parts so the misfire doesn't return. (AA1Car, NGK)

A sticking or clogged PCV valve/line can raise crankcase pressure and push oil past fresh gaskets. Inspect and service the PCV system anytime you replace a valve cover gasket. (AA1Car)

Torque specs, bolt patterns, and special steps can vary by engine. Get the exact info for your Sequoia from the official Toyota Owners manuals and, for full repair procedures, Toyota's Technical Information System (TIS). (Toyota, techinfo.toyota.com)

Never dump used oil. Collect oily rags and recycle used engine oil at a local drop-off. The U.S. EPA explains how and where to recycle used oil safely. (Bob Is The Oil Guy, Simple Wikipedia)

People also call this part a rocker cover gasket, cam cover gasket, valve cover seal, or cylinder head cover gasket. Searching those phrases helps you find the right set for your Sequoia. (Wikipedia)

• Toyota Owners manuals & guides for exact procedures, specs, and maintenance schedules. (Toyota)
• Toyota Technical Information System (TIS) for detailed repair info. (techinfo.toyota.com)
• Fel-Pro technical article on proper valve/rocker cover gasket installation (clean/dry install, corner RTV only, center-out torque). (felpro.com)
• AA1Car and MOTOR Magazine explain how PCV problems can force oil leaks; helpful if your leak keeps returning. (AA1Car, MOTOR)
• EPA guidance on recycling used motor oil. (Bob Is The Oil Guy)

• Match the set to your engine code and model year (2UZ-FE, 3UR-FE, or V35A-FTS). (Wikipedia)
• For engines with spark-plug tubes, choose a set that includes tube seals and bolt grommets. (felpro.com)
• Plan to service the PCV system when you do the gasket to help the new seal last. (AA1Car)

If you want, I can tailor this for a specific Sequoia year/engine and turn it into a ready-to-publish page with headings, meta title/description, and an internal-link plan.