NISSAN(GR) TIIDA SAF MAKE 2006-2013 QR20 QR25 QR20 QR25 Engine Cylinder Head 2.5L X-Trail Serena Altima Primera Bluebird OEM 11041-MA00A – OEM 11040-MA00A

Product Overview: This complete cylinder head assembly is a direct-fit replacement manufactured for the QR20 QR25 engine family, the gasoline (petrol) unit used in NISSAN(GR), NISSAN(EL), Nissan, NISSAN(CA) vehicles. It is supplied fully assembled with valve guides, valve seats, valves, springs and, where applicable, the camshaft carrier already installed, so a cracked, warped, valve-damaged or severely worn original head can be replaced without additional machining. Every unit is inspected before packing: the deck face is checked for flatness, valve seats are tested for concentricity and seal, cam journal clearances are measured to specification, and the casting is pressure and vacuum tested to confirm there are no cracks or core flaws.

Key Features: The casting is CNC-machined to original tolerances so that deck flatness, valve seat concentricity and port geometry all meet specification. Valve guides and seats are pre-installed and honed, combustion chamber volumes are matched across cylinders for balanced compression, and the camshaft journals are line-honed for correct bearing clearance. Reinforced material around the valve bridge, injector or spark plug bosses improves thermal durability under sustained load.

Vehicle Compatibility: This assembly is confirmed against the following applications: Nissan(Gr) Tiida Saf Make (2006-2013); Nissan(Gr) Nv350 Urvan (2012-); Nissan(Gr) Q30 (2015-); Nissan(Gr) Terra (2018-); Nissan(Gr) Tiida Jpn Make (2006-2012); Nissan(Gr) Q60/G Coupe (2016-); and further market variants of the same models.

Specifications: Engine code: QR20 QR25; configuration: L4 Inline cylinder; displacement: 2.0 L / 2.5 L; fuel type: gasoline (petrol); material: Aluminum Alloy; condition: new; purpose: replacement or repair; supplied as a complete, fully assembled cylinder head; warranty: 12 months.

OEM / Reference Numbers: OEM / reference numbers: 11040-MA00A, 11041-MA00A, 11040-8H301, 11040-8H302. These references cover the same unit across different production periods and markets. Match the numbers stamped on the original component with the list above to confirm that this assembly is the correct replacement before ordering.

Applications: Typical applications include Nissan X-Trail / Serena / Teana / Primera using the QR20 QR25 engine.

Benefits / Replacement Information: Replacing a failed engine with this prepared assembly restores performance, oil control and fuel economy while avoiding the machining, cleaning and assembly time of a full rebuild.

Installation or Fitment Notes: Installation should be carried out by a qualified technician following the manufacturer's procedure. Clean and check the block deck for flatness, fit a new head gasket and new head bolts where specified, and torque in the correct sequence to the published figures. Replace the timing belt or chain and tensioner as a set, set valve clearances and cam timing, then refill with the correct coolant and oil.