NISSAN 13224-VD30A Rocker Cover Bolt

The genuine NISSAN rocker cover bolt with part number 13224-VD30A (BOLT-ROCKER COVER) is responsible for the proper, secure mechanical fastening between the cylinder head and the rocker cover. It plays a critical technical role in ensuring the precise and even distribution of clamping torque across the rocker cover gasket surface, effectively preventing engine oil leaks and stopping contaminants from entering the valvetrain area. Due to the thermal expansion and vibrations generated by the engine block during operation, the use of a genuine bolt with the correct tensile strength and dimensional accuracy is essential to maintain reliable sealing.

Technical specifications and references:

• Manufacturer: NISSAN
• Part Number (SKU): 13224-VD30A
• OEM / Alternative reference number: 13224VD300
• Part designation: Rocker cover fastening bolt
• Installation area: Cylinder head / timing cover
• Material grade: Steel with heat- and corrosion-resistant coating

Compatible vehicle models:

• Nissan Patrol (Y61) 4.8 [2004 - 2012] (TB48DE)
• Nissan Safari (GCY61) 4.8 [2017 - 2017] (TB48DE)
• Nissan Safari Pick Up (TY61) 4.8 [2011 - 2012] (TB48E)
• Nissan Safari Pick Up (TY61) 4.8 [2012 - 2014] (TB48DE)
• Nissan Safari Pick Up (GCTY61) 4.8 [2017 - 2017] (TB48DE)

Symptoms of wear and maintenance: During the removal and reinstallation of the rocker cover, improper tightening torque can easily cause thread stretching, stripped threads, or bolt head deformation. Fatigued or damaged fasteners lose their clamping force, leading to oil seepage along the rocker cover. Replacing damaged fastening bolts is strongly recommended when replacing the rocker cover gasket or during engine overhauls.