Nissan PICK UP (D22), PICK UP (D21) 1997-, 1985-1998 TD25 TD25 TD25-TI Engine Complete Cylinder Head 11039-3S900 Diesel Repair Kit – OEM 11039-3S900

Product Overview: Designed as a factory-specification replacement, this complete cylinder head assembly suits the TD25 turbo-diesel engine found in Nissan PICK UP (D22) and similar models. It is supplied fully assembled with finish-machined camshaft journals, valve seats, valve guides and combustion chambers, so a cracked, warped or valve-damaged original head can be replaced without additional machining work.

Key Features: The casting is CNC-machined to original equipment tolerances for accurate deck flatness, correct valve seat concentricity and consistent combustion chamber volume across every cylinder. Valve guides and seats are pre-installed and honed for even sealing and balanced compression, and the cast iron or aluminium construction with reinforced walls around the valve bridge and fire deck improves durability under sustained thermal and mechanical load. Injector bores, glow plug threads and pre-chamber seats are precision machined to maintain correct fuel atomisation and combustion sealing under diesel cylinder pressures.

Vehicle Compatibility: This assembly is compatible with Nissan PICK UP (D22) and Nissan PICK UP (D21). Because manufacturers frequently revised castings and engine codes within the same model line, always confirm the engine code, casting number and original equipment reference against the component being replaced before ordering.

Specifications: Engine code TD25; four-cylinder diesel configuration; material Cast Iron or Aluminium; Standard Size; new condition; supplied as a complete assembly; 12 Months warranty; place of origin Zhejiang, China; intended for replacement and repair use.

OEM / Reference Numbers: 11039-3S900, 11039-3S901 and 11039-3S902. These references cover several production revisions of the same basic casting, so cross-reference them with the casting marks and part label on the original component to confirm the correct variant.

Applications: Suitable for Nissan PICK UP (D22) and Nissan PICK UP (D21), covering everyday repairs, engine rebuilds, workshop overhauls and fleet maintenance where a factory-specification component is required. The durable design also suits delivery vans, pickups, minibuses, light trucks and utility vehicles operated under continuous heavy-duty cycles.

Benefits / Replacement Information: Installing this assembly restores lost compression, corrects coolant loss and combustion leakage caused by cracking or distortion, and removes the expense of machining and rebuilding the original head. A correctly specified replacement reduces the risk of repeat failure, helps restore original fuel economy and emissions performance, and returns the engine to reliable service with a predictable service life.

Installation or Fitment Notes: Confirm the engine code TD25 and OE number before ordering, and inspect the block deck and piston protrusion for flatness and correct height before fitting. Use new gaskets, head bolts and seals during installation, follow the manufacturer's torque sequence and tightening values, and refill with the correct grade of oil and coolant.