Description
Buy Fiat Fullback 2.4 Diesel Engine Today
The Mitsubishi 4N15 engine is the high-tech heart of both the fifth-generation Mitsubishi L200 and its mechanical twin, the Fiat Fullback. This 2.4L aluminum-block diesel engine is part of the “Clean Diesel” family, featuring MIVEC (Mitsubishi Innovative Valve timing Electronic Control) on the intake side—a rarity for diesel engines. In 2026, this engine remains a top choice for commercial and leisure users due to its Euro 6 compliance, lightweight design, and exceptional torque-to-weight ratio.
Technical Specifications: Fiat Fullback 2.4 Diesel Engine
The 4N15 is available in two main power outputs. Both versions utilize a Variable Geometry Turbocharger (VGT) to minimize lag and maximize pulling power.
| Feature | Low Power Variant | High Power Variant |
| Engine Code | 4N15 | 4N15 |
| Max Power | 113 kW (154 PS) @ 3,500 RPM | 133 kW (181 PS) @ 3,500 RPM |
| Max Torque | 380 Nm @ 1,500–2,500 RPM | 430 Nm @ 2,500 RPM |
| Displacement | 2,442 cc | 2,442 cc |
| Compression Ratio | 15.5:1 | 15.5:1 |
| Valvetrain | DOHC, 16-Valve, MIVEC | DOHC, 16-Valve, MIVEC |
| Fuel System | 200 MPa Common Rail | 200 MPa Common Rail |
Critical Maintenance & Common Reliability Issues
While the 4N15 is robust, its advanced emissions systems and tight tolerances require specific care to avoid the Mitsubishi 4N15 engine reliability issues often reported at higher mileages.
-
Injector Seat Blow-by: These engines require valve adjustments every 40,000 km. If injectors are not reseated with new washers and torqued correctly, combustion gases can leak past the seals (blow-by), causing oil contamination and DPF clogging.
-
Oil Dilution (P252F): Frequent short trips prevent the DPF from completing its regeneration cycle. This leads to unburnt diesel leaking into the crankcase, raising the oil level. Check your dipstick: if the oil reaches the “X” mark, it must be changed immediately to prevent engine runaway or bearing damage.
-
Intake Carbon Buildup: Like many modern diesels, the EGR system can cause soot buildup in the intake manifold, leading to restricted airflow and “limp mode” errors.
-
Turbo Boost Leaks: Inspect intercooler hoses for oily residue, which indicates a hairline crack. A boost leak will cause the engine to run rich, rapidly soot-loading the DPF.
Installation & Component Details (Stock #AB-4N15)
| Category | Specifications |
| Compatibility | Fiat Fullback (2016–2019), Mitsubishi L200 / Triton (2015–Present) |
| Block Material | Aluminum Die-Cast (Weight-Saving) |
| Timing System | Chain Driven (No belt replacement required) |
| Glow Plugs | High-speed Ceramic |
| Interchange # | 300-70548 (Covers 150hp, 154hp, and 181hp variants) |
The Professional Choice: Fiat Fullback 2.4 Diesel Engine
Replacing a 4N15 requires a precise “Long Block” or “Complete Assembly” to ensure the MIVEC system and high-pressure fuel pump are synchronized. In 2026, sourcing a verified unit with a documented compression test is vital. Our assemblies are inspected for timing chain stretch and injector seat integrity, providing a reliable “plug-and-play” solution that restores the 3,500kg towing capacity your truck was built for.
This Fiat Fullback 2.4 Diesel Engine is ready to get your Fullback or L200 back on the job! Click here to message us on WhatsApp right now
Reviews
There are no reviews yet.