Cylinder Head Supply
Nissan Navara Pathfinder YD25 2.5L Cylinder Head Complete 4-Port
Nissan Navara Pathfinder YD25 2.5L Cylinder Head Complete 4-Port
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Complete YD25 4-Port Cylinder Head — Ready to Install
Brand new complete and assembled YD25DDTi cylinder head for Nissan Navara D22, D40 and Pathfinder R51 with 2.5L Common Rail Diesel (CRD) turbo diesel engines. Suits 4-port intake, 128kW models. Valve clearances preset, pressure tested, and ready to bolt on.
Fits: Nissan Navara D22, D40 & Pathfinder R51 (2005 onwards) — Engine code YD25DDTi, YD25, 2.5L CRD turbo diesel, 4-port intake
Important: This is the 4-port intake version. To identify your version, check the location of your glow plugs — glow plugs on the passenger side = 4-port. If unsure, contact us before ordering. Note: our gasket set includes both alloy and plastic rocker cover gaskets — no need to identify your rocker cover type before ordering.
What's Included:
- Brand new complete cylinder head assembly — valves, springs, retainers & seals fitted
- Camshaft installed with shim bucket tappets, valve clearances preset
- Premium VRS head gasket set — thickest specification head gasket
- Both alloy and plastic rocker cover gaskets included
- Torque-to-yield (TTY) stretch bolts (single-use)
- Injector sleeve seals
- Cam lube & torque specification sheet
- ✓ Free Delivery: Available to most Australian addresses — Perth pickup also available
Key Specifications:
- Engine Code: YD25DDTi / YD25 — 2.5L CRD turbo diesel
- Port configuration: 4-port intake (128kW)
- Valve configuration: 16-valve DOHC
- Bolt type: Torque-to-yield (TTY) stretch bolts, single-use
- Head gasket: Premium VRS — thickest specification
- Quality: 100% quality inspected, valve-to-seat compression tested, head face checked and refaced if necessary.
- ✓ Warranty: 12 months
Compatibility Guide
Guide only — please contact us if you are unsure.
- 2005–2010: Nissan Navara D40M with 2.5L CRD turbo diesel, engine code YD25DDTi, 4-port intake
- 2005–2010: Nissan Pathfinder R51M with 2.5L CRD turbo diesel, engine code YD25DDTi, 4-port intake
- 2008 onwards: Nissan Navara D40T with 2.5L CRD turbo diesel, engine code YD25DDTi, 4-port intake
- 2008 onwards: Nissan Navara D22 with 2.5L CRD turbo diesel, engine code YD25DDTi, 4-port intake
Order online or by phone. Pickup available in Perth (Midland) or fast dispatch from Melbourne.
Frequently Asked Questions
How do I know if I have the 4-port or 8-port YD25?
Check your glow plug location. Glow plugs on the passenger side = 4-port. Glow plugs on the driver's side = 8-port. Still unsure? Contact us, and we’ll help you identify the correct head.
Do I need to know my rocker cover type before ordering?
No — our gasket set includes both the alloy and plastic rocker cover gaskets, so you’re covered regardless of which version you have.
Why choose a complete assembled head over a bare casting?
Arrives fully assembled and pressure tested — valves seated, clearances set, camshaft fitted. No machine shop required, saving significant time and labour cost.
Also available: YD25 4-Port Head Gasket Set | Browse all Nissan YD25 Parts
Fitment & Product FAQ
Are the cylinder heads supplied assembled?
Most are supplied assembled, with the camshaft, valves, springs and seals already fitted so they are ready for installation. Some applications require the original camshaft and rocker gear to be transferred across. Confirm the details in the ‘What’s Included’ section for the product you are viewing.
What will I receive with my order?
The contents vary by application. Most complete cylinder-head kits include the assembled head, a VRS gasket set and new head bolts. Some products require reuse of the original camshaft and rockers. For engines using an MLS gasket, we supply the thickest available specification. Gasket-set-only products include the head gasket, manifold gaskets, valve stem seals, rocker cover gasket, head bolts and required O-rings. Check the product’s ‘What’s Included’ section for the exact contents.
What warranty is included?
Every cylinder head includes a 12-month warranty against manufacturing defects. We carefully select our heads and stand behind the quality supplied.
How can I confirm it fits my vehicle?
Use the ‘Fits’ section to check the compatible make, model, year and engine code. If you are still unsure, send us your VIN before ordering and we can confirm the application.
How quickly will my order arrive?
Orders are dispatched from Perth or Melbourne. Most deliveries arrive within 2–5 business days, with express delivery available at checkout.
Does the head need machining before installation?
No. Our cylinder heads are manufactured to OEM specifications and are supplied ready to fit, so machining should not be required before installation.