YD25 NP300 Bare Cylinder Head — OEM Ref 11040-5X00A
Bring your 2.5L YD25 diesel back to life with a new bare cylinder head engineered for dependable sealing, oil control, and heat management. Built for OEM-grade fitment and machining accuracy, it’s the ideal foundation for a reliable rebuild or repair.
Key Features
- Designed for the Nissan YD25 / YD25DDTi 2.5L DOHC turbo-diesel
- High-strength aluminum alloy casting for durability and heat dissipation
- Precision-machined deck and gasket surfaces for proper sealing
- Accurate oil and coolant passages for consistent thermal stability
- Pre-tapped threaded holes for straightforward assembly
- Bare configuration gives engine builders full control over component selection
What’s Included
- Bare cylinder head casting
Not Included (transfer or source separately)
- Valves, springs, seals, retainers
- Camshafts and related valvetrain components
- Fuel injectors, glow plugs, and ancillary hardware
- Head gasket and head bolts
Compatibility
- Engine: Nissan YD25 / YD25DDTi (2.5L)
- Typical applications: NP300/Hardbody/Navara (regional naming varies)
Cross-reference: OEM part number 11040-5X00A (also formatted as 110405X00A). Always confirm by engine code, part number, and VIN before ordering.
Ideal Use Cases
- Replacement for cracked or warped cylinder heads
- Complete engine rebuilds and performance refreshes
- Preventative maintenance during timing chain or head gasket service
Installation Notes
- Professional installation recommended
- Verify head and block flatness; clean all mating surfaces thoroughly
- Use new head gasket and head bolts; follow the YD25 torque/angle sequence
- Set cam timing and valve clearances per factory specifications
- Prime the oil system and bleed the cooling system after assembly
