1. Engine Rocker & Valve Covers Items
  2. sku: 13271101270963891
  3. TOYOTA AVALON

TOYOTA 350.TO1O04 Left Engine Valve Cover 3.0L 6CYL 1MZFE

fits model: 350, Avalon. make: Toyota. year: 2004.

350.to1o04 Toyota 2004 Avalon 3.0l 6cyl 1mzfe Left Side Engine Valve Cover Assembly

( Model: AVALON ), ( Conditions Options: Lh Valve Cover ), ( Genuine Oem: Yes ), ( Ipn: 350.to1o04 ), ( Descriptionpartcondition: Used Good ), ( Manufacturer Warranty: 6 Month ), ( Type: Valve Cover )

Review TOYOTA 3.0l 6cyl Left Side Engine Valve Cover Assembly fits AVALON 350 2004

The Toyota 350.TO1004 2004 Avalon 3.0L 6 cylinder 1MZ-FE left engine valve cover is an essential component of the engine's intake system. This valve cover is specifically designed for use in the 2004 Toyota Avalon with the 1MZ-FE 3.0-liter 6-cylinder engine.

The valve cover is made of high-quality aluminum material, which is lightweight yet robust enough to withstand the rigors of continuous engine operation. It features a smooth, polished finish that not only adds to the aesthetic appeal of the engine bay but also ensures a good seal against the intake manifold gasket.

This valve cover houses the intake manifold's four intake ports and the corresponding valves. The cover includes an integrated breather system that helps maintain proper crankcase ventilation and prevent harmful engine gases from entering the intake system. It also includes a drain plug at the bottom, making it easy to drain any excess oil that may accumulate in the valve cover gasket area.

The Toyota 350.TO1004 2004 Avalon left engine valve cover is engineered to provide excellent sealing performance. It features a multi-layered gasket design that ensures a tight seal against the intake manifold and the cylinder head. The gasket material is resilient and can withstand the high temperatures and pressures generated within the engine.

The valve cover is easy to install, and replacement is a straightforward process. It comes with all necessary hardware, including the bolts and gasket material, to make the installation process as hassle-free as possible. Additionally, the cover is designed to fit perfectly, ensuring a precise fit that eliminates any potential leaks.

In summary, the Toyota 350.TO1004 2004 Avalon 3.0L 6 cylinder 1MZ-FE left engine valve cover is a high-quality, durable component that plays a crucial role in the proper functioning of the engine's intake system. Its sleek design, robust construction, and excellent sealing performance make it an excellent choice for Toyota Avalon owners looking to maintain the performance and longevity of their engines.

The Toyota Avalon 3.0L 6 cylinder 1MZ-FE engine, produced between 1999 and 2005, is known for its reliability and durability. However, like any engine component, the left engine valve cover can wear out or get damaged over time, leading to the need for replacement. Here are some pros and cons of buying a new left engine valve cover for a 2004 Toyota Avalon with a 3.0L 6 cylinder 1MZ-FE engine.

Pros:

1. Improved Seal: A new left engine valve cover will provide a better seal than a worn-out or damaged one, preventing oil leaks and reducing the risk of engine damage.

2. Enhanced Appearance: A new engine valve cover will give your engine compartment a cleaner and more attractive appearance.

3. Long-Term Savings: Replacing a worn-out valve cover now can save you money in the long run by preventing more extensive engine damage and costly repairs.

Cons:

1. Cost: The cost of a new left engine valve cover can vary depending on the brand, quality, and availability. You may pay anywhere from $50 to $200 or more for a new one.

2. Installation Complexity: Installing a new left engine valve cover can be a challenging task, especially for those without automotive experience. You may need to remove various engine components to access the valve cover, and then reassemble everything once the new cover is installed.

3. Potential for Other Damage: When removing engine components to replace the valve cover, there is a risk of damaging other parts, which could lead to additional repair costs.

Conclusion:

A new left engine valve cover for a 2004 Toyota Avalon with a 3.0L 6 cylinder 1MZ-FE engine can help prevent oil leaks, improve engine appearance, and save money in the long run. However, it comes with some cons, such as cost, installation complexity, and the potential for other damage. Ultimately, the decision to buy a new left engine valve cover depends on your budget, DIY skills, and the severity of the current leak or damage. If the leak is minor, you may be able to get away with using a gasket sealant or a used valve cover. However, if the leak is significant or the valve cover is damaged, a new one is the best option for long-term reliability and peace of mind.

Details:

Drain gear lubes and fill to manufacturers specifications. Adjust throttle position sensor cable. Use manufacturer recommended Transmission fluid. 3.0L-V6-1MZFE,LH VALVE COVER.

Properly torque converter. Replace Filter and Gaskets. Replace all seals. Install new spark plugs wires.

Flush inspect transmission cooling lines. Differentials Axle Assemblies. Inspect adjust or replace shiftier linkages. Clear all computer fault codes.

Daytime phone number is required load will not deliver until appointment scheduled. Replace thermostat gasket. Load is curbside delivery ONLY. Remove torque converter bracket.

Replace throw out bearing. Replace clutch. Replace pilot bushing. Clean the oil sump screen pickup tube.

Flush cooling system and refill with antifreeze to appropriate level. Replace axle or drive shaft seal. Install new belts hoses. Inspect replace, gaskets and seals if needed.

Replace oil pan gasket front/rear main seal. Drain replace engine oils to manufacturers suggested levels. Manual Transmissions. Replace oil, air fuel filters Replace valve cover gaskets.

Someone over 18 must be present for delivery. Replace flywheel. Automatic Transmissions. Inspect and replace, if needed timing gears, chains, pensioner or belts gaskets.

Add fluid to manufacturers suggested levels. Install new water pump.

part #: 350.to1o04 prices

  • $106.24-$179.99

specifications rockercove:

  • for models: 350, Avalon
  • for makes: Toyota
  • for years: 2004
  • model: Avalon
  • conditions options: Lh Valve Cover
  • genuine oem: Yes
  • ipn: 350.to1o04
  • descriptionpartcondition: Used Good
  • manufacturer warranty: 6 Month
  • type: Valve Cover

shipping rockercove:

  • service: Standard
  • cost: $20.00
  • class: Standard
  • transit: 2-7 Days
  • type: Fixed

general rockercove:

  • condition: Used
  • Engines Engine Parts > Valvetrain Components > Rocker Valve Covers

offer rockercove:

  • availability: In Stock
  • quantity: 1
  • sold: 0
  • best offers: True
  • started: May 20, 2026
  • options: Ship-to-home

seller rockercove:

  • city: Rancho Cordova, California
  • rating: 99.5%
  • # reviews: 9599

payments rockercove:

  • other
  • wallet: Paypal
  • credit card: Visa

returns rockercove:

  • time: 30 Days
  • policy: Returns Accepted
  • paid by: Buyer
for models: 350, avalon, for makes: toyota, for years: 2004, conditions options: lh valve cover, genuine oem: yes, descriptionpartcondition: used good, manufacturer warranty: 6 month, type: valve cover,
manufacturer: toyota, category: auto parts > engines engine parts > valvetrain components > rocker valve covers, sku: 13271101270963891,

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