4G69 Engine

Specifications

The Mitsubishi 4G69 engine is a durable and well-balanced 2.4-liter (2,378 cc) inline-four, four-stroke petrol engine built with a SOHC 16-valve layout and Mitsubishi’s MIVEC variable valve timing system. It produces approximately 158–177 horsepower (around 120 kW) at 6,000 rpm and 219–225 N⋅m (162–166 lb-ft) of torque at about 4,000 rpm, depending on market specifications and tuning. With an 87 mm bore and long 100 mm stroke, the 4G69 is engineered to deliver strong low- and mid-range torque, making it responsive and practical for everyday driving conditions.

The engine features multi-point fuel injection, a cast-iron block for durability, and an aluminum alloy cylinder head for efficient heat dissipation. Its timing belt–driven valvetrain and integrated balance shafts help ensure smooth operation with reduced vibration. Compression ratios range from 9.5:1 to 10.5:1, and the engine has an approximate dry weight of 135 kg. Known for reliability and longevity, the 4G69 was widely used in mid-2000s Mitsubishi models such as the Outlander, Galant, Eclipse, Grandis, and Lancer.

The Mitsubishi 4G69 is appreciated for its practical engineering and long-term dependability, as the long-stroke design enhances drivability and fuel efficiency in real-world conditions while the MIVEC system improves throttle response and emissions compliance; the inclusion of balance shafts significantly reduces engine vibration for a smoother ride, especially at highway speeds, and the cast-iron block allows the engine to tolerate higher thermal loads and extended service intervals, making it a popular choice in SUVs and sedans alike, while straightforward mechanical layout, widely available parts, and compatibility with both automatic and manual transmissions have contributed to its popularity among daily drivers, fleet vehicles, and enthusiasts seeking a durable, low-maintenance 2.4L powerplant.    

Engine Variants

Standard 4G69 (MIVEC)

The standard Mitsubishi 4G69 with MIVEC is a 2.4-liter (2,378 cc) inline-four engine featuring a SOHC 16-valve layout with Mitsubishi Innovative Valve timing Electronic Control, a relatively high 10.5:1 compression ratio, and multi-point fuel injection, producing approximately 161–165 horsepower and around 220–225 N⋅m of torque; it uses an 87 mm bore and 100 mm stroke, cast-iron block, aluminum cylinder head, balance shafts, and a timing belt, and was primarily installed in passenger-focused models such as the Mitsubishi Grandis, Outlander, Galant, and Eclipse, where it delivers smooth operation, good mid-range performance, and improved efficiency and emissions compared to non-MIVEC versions.  

4G69S4N (Great Wall variant)

The 4G69S4N is a licensed and locally adapted version of the 4G69 produced for Great Wall vehicles, retaining the same 2.4-liter displacement, SOHC 16-valve architecture, cast-iron block, aluminum head, balance shafts, and 87 mm × 100 mm bore and stroke, but typically tuned for durability and low-end torque rather than peak output, with power figures generally in the ~160 hp range and torque optimized for heavier SUV and pickup applications; commonly used in the Great Wall Hover H5 and H6, this variant prioritizes reliability, fuel tolerance, and drivability under load, often paired with manual or torque-converter automatic transmissions.   

Non-MIVEC 4G69

The non-MIVEC 4G69 shares the same fundamental 2.4-liter inline-four design, SOHC 16-valve cylinder head, multi-point fuel injection, cast-iron block, aluminum head, balance shafts, and long-stroke 100 mm crankshaft, but omits the MIVEC variable valve timing system for reduced complexity and cost, resulting in slightly lower peak power output —typically in the mid-150 hp range while maintaining similar torque characteristics and a compression ratio that is usually lower than MIVEC versions; these variants were offered in select markets or commercial-oriented applications where simplicity, ease of maintenance, and long-term durability were prioritized over maximum performance.     

Frequently Asked Questions