Mitsubishi 4M40 Engine original parts

Brand New 4M40T 4M40 Diesel Engine for Mitsubishi L200, Pajero, Canter, Delica, Colt & Challenger – High-Performance, Reliable Power Unit

The 4M40T and 4M40 diesel engine is a robust, high-efficiency powerplant designed specifically for Mitsubishi’s most trusted light commercial vehicles and off-road models. With a displacement of 2835cc, this inline-four, water-cooled, four-stroke engine features an overhead camshaft (OHC) configuration, delivering strong torque output and excellent fuel economy. Whether you're replacing a worn-out unit or upgrading your vehicle's performance, this complete engine assembly offers a direct-fit solution that meets OEM standards while enhancing durability under demanding conditions.

Key specifications include a bore x stroke of φ95 × 100mm, making it ideal for applications requiring consistent power delivery across varied terrains—from urban delivery vans to rugged construction sites. The engine supports multiple configurations, allowing for tailored performance depending on the vehicle model and usage requirements. Its design emphasizes reliability, with precision engineering ensuring minimal vibration and optimal thermal management.

Designed for longevity and ease of maintenance, the 4M40T engine includes several critical components such as the injector system, governor control lever, and engine shutdown solenoid valve—all of which should be inspected regularly during routine servicing. Proper oil and filter changes, along with periodic checks of coolant temperature and fuel filtration, are essential for maintaining peak efficiency. When performing cylinder head disassembly or reassembly, follow manufacturer guidelines strictly: loosen tensioners first, then remove bolts in sequence, apply appropriate sealant, and tighten using specified torque values to prevent warping or leaks.

This engine is widely used in agricultural machinery, small excavators like the Caterpillar 308, and various utility vehicles where compact size, low noise levels, and efficient combustion are crucial. It excels in environments requiring sustained operation without overheating or excessive wear, thanks to its advanced cooling system and optimized air-fuel mixture control. As part of a long-block engine assembly, it provides full mechanical integrity—ideal for mechanics seeking a comprehensive replacement rather than individual part swaps.

Users appreciate the balance between power output and fuel consumption, especially when operating heavy-duty trucks or work equipment over extended periods. Many owners report smoother idling, reduced emissions, and fewer breakdowns compared to older versions, confirming its value in both professional and personal use cases. While some may initially hesitate due to installation complexity, those who follow proper procedures find the process straightforward and rewarding in terms of long-term performance gains.

Common questions often revolve around compatibility, expected lifespan, and maintenance intervals. This engine fits directly into models including the Mitsubishi L200, Pajero, Canter, Delica, Colt, and Challenger—no modifications required. With regular servicing, it can last over 200,000 kilometers under normal driving conditions. Most users recommend changing the oil every 7,500 km and inspecting injectors annually to ensure consistent fuel atomization and combustion efficiency. For those considering a rebuild versus a full replacement, the long-block option provides better overall reliability than partial repairs.