Hyundai / Kia D4BX 2.5L Turbo Diesel Engine

The D4BX is a 2.5L inline-4 turbo diesel engine, based on the Mitsubishi 4D56 design, produced under license by Hyundai. Known for its durability and rugged design, this motor was widely used in Hyundai and Kia SUVs and light commercial vehicles.

Key Features:

• Engine Code: D4BX

• Displacement: 2.5L (2,476 cc)

• Configuration: Inline-4, Turbocharged Diesel

• Fuel System: Mechanical / early electronic injection (varies by year)

• Power Output: ~85–100 hp (varies by spec)

• Applications:

  • Hyundai Galloper

  • Kia Bongo (truck & van models)

  • Hyundai H100 / Porter

  • Early Kia Sorento (select trims)

• Highlights:

  • Reliable Mitsubishi-derived design

  • Simple to maintain, robust for commercial use

  • Widely available parts

🔹 Hyundai / Kia D3EA 2.5L CRDi Turbo Diesel Engine

The D3EA is a modernized 2.5L Common-Rail Diesel (CRDi), developed as part of Hyundai’s U-series diesel family. It offers improved fuel economy, lower emissions, and higher power compared to the older mechanical D4BX.

Key Features:

• Engine Code: D3EA

• Displacement: 2.5L (2,497 cc)

• Configuration: Inline-4, Turbocharged Diesel (CRDi)

• Fuel System: Common-Rail Direct Injection (Bosch system)

• Power Output: ~115–140 hp (varies by model/year)

• Applications:

  • Hyundai Santa Fe (early 2000s models)

  • Kia Carnival / Sedona 2.5 CRDi

  • Kia Sorento (first generation)

• Highlights:

  • More efficient than D4BX

  • Strong torque delivery for SUVs/MPVs

  • Smoother and quieter operation