Seal the joint between the cylinder head and the engine block with the APEX Automobile Parts Inc head gasket, part number AHG556. If you need a Nissan Sentra cylinder head gasket, it is a direct-fit replacement for the 2007-2012 Nissan Sentra with the L4-2.0L engine, and it also fits the 2007-2012 Nissan Versa and the 2009-2011 Nissan Cube with the L4-1.8L engine.
The head gasket is clamped between the head and the block. It is designed to seal the combustion chambers and to keep the coolant and oil passages that cross that joint separated from each other and from the outside of the engine.
- Part type: Head gasket, as described by APEX.
- Engine fitment: Listed for the L4-1.8L and L4-2.0L engines in the applications above.
- Quantity: The listed applications use one head gasket.
- Hazardous material: No.
Signs a head gasket may need replacing: coolant loss with no visible leak, overheating, white exhaust smoke, coolant mixed into the oil, or low compression in one or more cylinders. Other faults can cause similar symptoms, so diagnose the cause before you replace the gasket.
Installation: Replacing a head gasket requires removing the cylinder head. Consult the vehicle service information for surface preparation and the bolt torque sequence. Check there as well for the correct head bolts and whether the originals may be reused.
Frequently Asked Questions
Which vehicles does the APEX AHG556 head gasket fit?
It fits the 2007-2012 Nissan Sentra with the L4-2.0L engine, and the 2007-2012 Nissan Versa and 2009-2011 Nissan Cube with the L4-1.8L engine. Check the "Vehicles it fits" section to confirm your vehicle.
What does an engine cylinder head gasket do?
It sits between the cylinder head and the engine block. It seals the combustion chambers and keeps the coolant and oil passages that cross that joint separated.
How many head gaskets do the listed applications use?
The listed applications use one head gasket.
What are signs that a head gasket may need replacing?
Common signs include unexplained coolant loss, overheating, white exhaust smoke, coolant in the oil, or low compression. Other faults can cause the same symptoms, so diagnose the cause before replacing the gasket.
Can I reuse my original head bolts?
Many head bolts are single-use. Consult the vehicle service information for the correct fasteners, whether the originals may be reused, and the proper torque sequence.
