China Suppliers Factory Engine Rocker Cover Gasket 11213-30020 for Toyota Hilux VII and Hiace IV
ADVANTAGES
The valve cover is the sealing member of the upper part of the engine, and the corresponding oil pan seals up the engine oil, so that when the engine is running, the oil will not leak to the outside. It's mainly for sealing, prevent oil leak.
Leakage of valve chamber is also a common problem. Apart from quality and assembly problems, aging of valve cover gasket may also lead to this problem.
Types of Cover Gaskets
In the majority of modern cars on the market today, there are two main types of cover gaskets that you will find in cars – either liquid gaskets or formed rubber gaskets. The type of gasket you have in your vehicle is determined by the type of material used in the formation of the valve cover gasket and how much pressure it puts on the seal it covers.
The valve cover keeps the gasket compressed, which prevents leaks, being the cover gasket’s overall job in the car. Over time, however, the gasket can become faulty and damaged due to the high amount of engine heat or the bolts loosening over time, causing the gasket to become brittle and cause an engine oil leak.
Customer Support: Feel free to contact us at anytime if you have any problems or questions on your purchase. We will resolve any problems such as damaged, not as described, missing parts, and lost items. All emails will be replied within 24 hours except Sunday and Chinese holidays. If you have any other requirements or questions, welcome to visit our website, or just contact with us directly. Thank you!
Frequently Asked Questions
What is the main function of a valve cover?
The valve cover acts as a sealing member for the upper part of the engine. Together with the oil pan, it seals the engine oil inside to prevent it from leaking to the outside while the engine is running.
What causes a valve cover gasket to leak?
Leaks are commonly caused by gasket aging, assembly issues, or quality defects. Over time, high engine heat and loosening bolts can cause the gasket to become brittle and fail, leading to oil leaks.
What are the main types of valve cover gaskets?
Most modern vehicles use either liquid gaskets or pre-formed rubber gaskets. The specific type depends on the engine design and the material requirements needed to maintain a proper seal under pressure.
How long does it take to get a response for customer inquiries?
All customer emails and inquiries are processed and replied to within 24 hours, excluding Sundays and Chinese public holidays.
What is your policy on damaged or missing parts?
We fully resolve purchase issues including products that are damaged, not as described, missing parts, or lost during transit. Please contact us directly for assistance.




