Ensure correct cylinder head clamping force and long-term engine reliability with this Genuine Nissan Cylinder Head Bolt, designed specifically for Nissan Patrol GU Y61 models fitted with the ZD30 Common Rail diesel engine. These OEM torque-to-yield head bolts are critical fasteners that secure the cylinder head to the engine block, maintaining the seal of the head gasket under extreme combustion pressure.

Cylinder head bolts are single-use components and must always be replaced whenever the cylinder head is removed. Over time, these bolts permanently stretch due to torque-to-yield design, and reusing them can result in incorrect clamping force, leading to head gasket failure, overheating, coolant loss, and severe engine damage.

Manufactured to genuine Nissan specifications, this direct-fit replacement bolt ensures precise torque settings and even load distribution across the cylinder head, restoring factory sealing performance and protecting your ZD30 engine during rebuilds or head gasket repairs.

Features

• Genuine Nissan OEM part
• Suits Nissan Patrol GU Y61 ZD30 Common Rail diesel engines
• Torque-to-yield (TTY) single-use design
• High-tensile steel construction for extreme engine pressures
• Manufactured to factory Nissan specifications
• Direct-fit replacement, no modifications required
• Engineered for even cylinder head load distribution
• Essential for head gasket and engine rebuild work
• Sold individually (check quantity required per engine)

Benefits

• Ensures correct cylinder head clamping force
• Helps prevent head gasket failure
• Reduces risk of overheating and coolant loss
• Restores factory engine sealing performance
• Maintains reliable compression and engine efficiency
• Critical for long-term engine durability after rebuild
• Prevents issues caused by reusing stretched bolts
• OEM quality for dependable installation and fitment

Vehicle Fitment

Suitable for:

• Nissan Patrol GU Y61 ZD30CR
• Selected Nissan Navara D22 ZD30CR

Please confirm compatibility prior to purchase or contact us with your VIN to ensure correct fitment.

Common Signs of Wear / Replacement Required

• Cylinder head removal or engine rebuild in progress
• Head gasket replacement
• Overheating or coolant loss issues (post-failure diagnosis)
• Visible bolt stretching or corrosion (during teardown)
• Previous reuse of head bolts
• Uneven torque or sealing issues after rebuild
• Engine compression loss due to head sealing failure

Replacing cylinder head bolts during any head gasket or cylinder head service is essential to ensure correct sealing and prevent catastrophic engine damage in ZD30 Common Rail engines.