Nissan Frontier 2005-2012 2.5L 2500cc 2.5L Petrol QR25 4JM QR25DE Long Block Complete Engine Assembly Motor Navara D40 – OEM QR25

Product Overview: This Engine Assembly is a direct-fit replacement unit engineered for the QR25 engine family, gasoline (petrol) powerplant widely used across Nissan passenger, SUV and light commercial applications. It is supplied as a fully assembled long block that reuses the original ancillaries, with all critical rotating and sealing surfaces finish-machined so that a worn, seized or oil-consuming original unit can be exchanged without a lengthy workshop rebuild. Every unit is inspected before packing: bore geometry, deck flatness, bearing clearances and seal surfaces are measured against the original specification, and the assembly is pressure and leak tested to confirm that it is ready for service.

Key Features: Key components include the cylinder block, balanced crankshaft, connecting rods, pistons and rings, fully assembled cylinder head, camshaft, timing components, oil pan and sump, and all necessary covers and seals, so no large core parts need to be transferred from the old unit. Friction surfaces are honed and clearances are set to manufacturer limits, which supports correct oil pressure, smooth rotation and quiet operation.

Vehicle Compatibility: This assembly is confirmed against the following applications: Nissan Frontier (2005-2012) 2.5L 2500cc; Nissan Frontier (2005-2016) 2.5 L. Because manufacturers often revise part numbers within the same model generation, always confirm the engine code and original reference number on the vehicle or the failed component before ordering.

Specifications: Engine code: QR25; configuration: Inline 4 Cylinder (L4) cylinder; displacement: 2.5L; fuel type: gasoline (petrol); power output: 113-124 kW; torque: 232-241 N.m; material: Cast Iron Cylinder Block With Aluminum Alloy Head; condition: new; purpose: replacement or repair; supplied as a fully assembled long block that reuses the original ancillaries; warranty: 12 months.

OEM / Reference Numbers: OEM / reference numbers: QR25, QR25DE. 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 Navara / NP300 / Frontier using the 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. Downtime and labour costs are reduced, and the balanced, tested build lowers the risk of early repeat failure.

Installation or Fitment Notes: Installation should be carried out by a qualified technician following the manufacturer's procedure. Drain and replace all fluids, fit a new oil filter, review the cooling, fuel and ignition or injection systems, and replace the timing belt or chain, tensioner and water pump as a set. Prime the oil system before first start, check for leaks and clear any stored fault codes.