Sealing gasket is included. Easy to install, direct replacement for the old or broken one. Valve Cover Gasket Kit For Nissan X AUTOHAUX Camshaft Engine Valve Cover With Gasket Bolts Kit Nissan Altima Valve Cover Used for sealing some parts and accessories so as to prevent machine oil from the outside and dust entering as well as protect valve parts. 13264-JA00A 13264JA00A Cylinder Head Cover for Nissan Altima Wholesaler This is a non-OEM product, accessory only! Please allow 3-5mm differences due to manual measurement. Improper installation will lead to oil leakage. Meets original design for easy installation, good performance, and long service life. Direct replacement, no need to make any changes, match the original. 13264-JA00A Engine Valve Cover Set with Gasket Oil Cap Provides a tight, long lasting seal against oil leakage. A-Premium QR25DE Engine Valve Cover with Gasket, Oil Cap & Bolt Compatible with Nissan Altima (Hybrid) 2007-2013, Sentra SE-R 2007-2012, Rogue 2008-2013, L4 2.5L Gas, Replace # 13264-JA00A 13270-JA00A Installation: Professional installation is recommended.