Mitsubishi 4M51

The Mitsubishi 4M51 is built around the 4M51, a 3.2L Inline-4 diesel engine with a DOHC, 16-valve cylinder head and turbocharged, intercooled. Mitsubishi common-rail DI-D diesel. 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 4M51 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, 3.2L displacement. Valvetrain - DOHC, 16-valve. Fuel System - Diesel injection. Aspiration - Turbocharged, intercooled. Power Output - approximately 200 hp (149 kW). Torque - 441 Nm. These figures reflect the factory-rated output for the 4M51 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: Mitsubishi common-rail DI-D diesel. 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 4M51 was factory-fitted to Mitsubishi Pajero/Shogun. 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.