Cylinder Head Cover 55598449 – Vauxhall Astra, Insignia, Mokka & More

This cylinder head cover for Vauxhall Astra, Insignia, Meriva, Mokka and Zafira is a direct-fit replacement designed to seal the top of the engine and protect critical valvetrain components from oil leakage and external contaminants. Manufactured to meet OEM-equivalent specifications, this valve cover helps maintain proper oil containment, supports crankcase ventilation, and preserves the performance and reliability of your engine’s top end. Ideal for replacing a cracked, warped or leaking cover, this component ensures effective engine sealing and long-term durability for a range of Vauxhall models that use the corresponding cylinder head cover reference.

OEM Number: 55598449, 55486867, 55494242, 55570077

Fitting Position : Cylinder Head

Quantity : 1

Our SKU : TVAU55598449_94
 
All our Cylinder Head Cover For Vauxhall Astra J Insignia A Meriva Mokka Zafira 55598449 are OEM quality and reliable after market car parts. This Cylinder Head Cover For Vauxhall Astra J Insignia A Meriva Mokka Zafira 55598449 is specifically compatible with Opel: Astra, Astra J, Insignia, Meriva, Mokka / Mokka X, Zafira Tourer, .

Please use our make-model-year tool to check this part's compatibility with your vehicle. However, please note that our tool is for reference only and we recommend that you check the part number on your old unit prior to purchasing.

If you are still not sure about the compatibility of this part to your vehicle, please supply us with the VIN number or Reg number in our live chat or contact form! You can also find details on our purchasing & shipping guide here.

Key Benefits

Reliable Engine Sealing
Designed to provide a secure seal over the cylinder head, helping to prevent oil leaks that can lead to messy engine bays and reduced engine oil levels.

Protects Valvetrain Components
Shields camshafts, rocker arms, lifters, and other upper engine components from dirt, dust and moisture, helping to extend component life.

Supports Crankcase Ventilation
Includes correct ports and mounting positions for crankcase ventilation and breather systems, ensuring proper crankcase pressure management and engine performance.

OEM-Equivalent Quality
Manufactured to meet or closely match original equipment standards for fit and function, providing a dependable replacement for worn or damaged original valve covers.

Direct Fit Replacement
No modifications are required during installation, allowing straightforward replacement by professional technicians or experienced DIYers when servicing the engine.

Frequently Asked Questions (FAQs)

What is a cylinder head cover?
A cylinder head cover, also known as a valve cover, is the top section of the engine that seals the cylinder head and valvetrain components. It prevents engine oil from escaping while protecting internal parts from external debris and contamination.

Which vehicles is this cylinder head cover compatible with?
This cylinder head cover fits various Vauxhall models that originally use the corresponding OEM cylinder head cover reference, including Astra, Insignia, Meriva, Mokka and Zafira. Always confirm compatibility using your vehicle’s VIN or part number before ordering.

What causes a cylinder head cover to fail?
Common causes include heat-related warping, degraded gaskets, or physical damage which can lead to oil leaks around the cover edge.

Does replacing the cylinder head cover fix oil leaks?
Yes. If leaks are originating from a cracked or warped valve cover or a failed gasket seal, replacing the cylinder head cover can resolve oil loss and restore proper engine sealing.

Is the gasket included with the cylinder head cover?
Check the product listing details before purchase. Some cylinder head covers are supplied without a gasket, and a separate gasket and mounting hardware may be required for a complete, leak-free installation.