Isuzu 2.5 NEW Shape D-max 4JK1 Black Tappet Cover Engine

The Isuzu 2.5 NEW Shape D-max 4JK1 Black Tappet Cover is built around the 4JK1, a 2.5L Inline-4 diesel engine with a DOHC, 16-valve cylinder head and turbocharged, intercooled. Isuzu common-rail diesel fitted to the new-shape D-Max range. This unit is supplied by Tovesageneral Motors as a tested, ready-to-fit replacement for workshops and owners who need genuine factory characteristics rather than a generic substitute, and every engine is pulled from a running donor vehicle rather than sourced blind from an unknown history. Choosing a like-for-like 4JK1 over a cheaper mismatched substitute avoids the wiring, mounting and ECU-calibration headaches that come with swapping in a different engine family.

Key Specifications: Configuration - Inline-4, 2.5L displacement. Valvetrain - DOHC, 16-valve. Fuel System - Diesel injection. Aspiration - Turbocharged, intercooled. Power Output - approximately 134 hp (100 kW). Torque - 320 Nm. These figures reflect the factory-rated output for the 4JK1 in its most common calibration; individual market tunes, transmission pairing and emissions equipment can shift the exact number slightly from one production year to the next, so always cross-check against the specific model year of your vehicle.

Performance Highlights: Isuzu common-rail diesel fitted to the new-shape D-Max range. Expect the typical driving character of a turbocharged diesel inline-4: strong mid-range pull as boost builds, with a noticeably flatter torque curve than a comparable naturally aspirated unit of similar displacement. As with any used engine, we recommend a full service history review along with a compression/leak-down check before installation, plus a visual inspection of the timing components, seals, mounts, and ancillaries (alternator, water pump, turbocharger where fitted) prior to fitment.

Common Applications: The 4JK1 was factory-fitted to Isuzu D-Max (new shape). If you are sourcing this engine for a different chassis, confirm the exact engine code stamped on the block and the wiring/ECU variant before ordering, since several body styles shared this family across multiple model years and markets. Our team can help verify fitment against your VIN before dispatch so the engine you receive matches your loom, mounts and transmission bellhousing pattern.