4N15 – Mitsubishi Cylinder Head Assembly

The 4N15 Cylinder Head Assembly is a premium replacement part for Mitsubishi’s 2.4L turbocharged diesel engine, most commonly found in the Mitsubishi L200 / Triton, Pajero Sport, and other modern Mitsubishi 4WD vehicles. Built to handle high-pressure common rail injection and turbocharging, the 4N15 cylinder head is engineered for performance, durability, and efficiency.

Specifications:
Engine Code: 4N15

Displacement: 2.4L (2442cc)

Engine Type: 4-cylinder, inline, DOHC, turbocharged diesel

Fuel System: Common Rail Direct Injection (CRDi)

Cylinder Head Material: Aluminum alloy (lightweight & heat-resistant)

Valve Configuration: DOHC – Double Overhead Camshaft

Valves Per Cylinder: 4 (Total: 16 valves)

Turbocharger: Yes, variable geometry turbo (VGT) compatible

Compression Ratio: 15.5:1

Emissions System: Supports EGR and DPF configurations (Euro 4/5/6 compliant depending on model)

Assembly Components (may vary by supplier):

• Pre-installed intake and exhaust valves
• Valve springs and retainers
• Valve seals and guides
• Camshaft journals or housings (some assemblies include camshafts)
• Rocker arms and hydraulic lifters (optional)

Applications:
The 4N15 engine is widely used in the following Mitsubishi models:

Mitsubishi L200 / Triton (2015–present)

Mitsubishi Pajero Sport / Montero Sport (2015–present)

Mitsubishi Delica D:5 (select markets)

Note:

Always verify compatibility with your VIN or engine number.

Recommended to replace the head gasket and head bolts during installation.

Ensure the new cylinder head supports integrated cooling passages and sensor fittings specific to your variant.