Looking for a reliable MD302012 replacement? Our forged 4D56/D4BA crankshaft cures snout snapping and journal wear for L200 and H100 fleets. Global wholesales supply

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Quick Summary: Mitsubishi 4D56 & Hyundai D4BA Crankshaft

Searching for a reliable MD302012 crankshaft replacement? This high-tensile forged steel assembly is engineered to eliminate front snout snapping and keyway shear in 2.5L diesel engines. It provides exact fitment for Mitsubishi L200/Pajero and Hyundai H100/Starex fleets. In stock for immediate Global export solutions.

Solving the 2.5L Snout Snapping Crisis in 4D56 and D4BA Engines

The Mitsubishi 4D56 and its Hyundai counterpart, the D4BA/D4BB series, are among the most prolific 2.5L diesel engines in the world, powering legendary workhorses like the L200 pickup and the H100 van. However, these engines share a notorious mechanical vulnerability: front snout snapping and keyway shear. This failure is typically triggered by a loose harmonic balancer bolt or a degraded vibration damper, which allows harmonic frequencies to tear through the crankshaft snout, leading to catastrophic timing failure and engine destruction.

Ruich Value addresses this critical failure point with our premium MD302012 replacement crankshaft. Forged from high-density 42CrMo steel alloy—vastly superior to standard cast iron alternatives—this unit offers the structural integrity required to withstand extreme torsional stress. Every crankshaft undergoes rigorous induction hardening on the journals and snout to achieve an HRC 50-55 hardness, specifically protecting the keyway area from premature wear. Whether you are maintaining a fleet of commercial delivery vans or rebuilding a 4×4 Pajero, our dynamically balanced crankshaft ensures your engine returns to the road with maximum durability and zero compromises.

Crankshaft Technical Specifications for MD302012

OEM Part Number MD302012
Hyundai/Kia Cross-Ref 23111-42020, 23111-42011, 23111-42003
Engine Compatibility Mitsubishi 4D56, 4D56T / Hyundai D4BA, D4BB, D4BH
Material Metallurgy High-Tensile Forged Steel Alloy (42CrMo)
Surface Hardness Induction Hardened Snout & Journals (HRC 50-55)
Stroke Length 95.00 mm
Main Journal Diameter 66.00 mm (Standard OEM Spec)
Rod Journal Diameter 52.50 mm (Standard OEM Spec)
Balancing Standard Dynamic Spin-Balanced (≤ 5g·cm)

Verified Multi-Brand Vehicle Fitment

OEM Brand Application Category Known Compatible Models
Mitsubishi Pickup & 4×4 SUV L200 (Triton), Pajero, Montero, Shogun, Delica Van
Hyundai LCV & Minibus H100, H1, Starex, Grace, Porter, Galloper
Kia Light Commercial Bongo, Pregio, K2500 (2.5L Diesel models)

Why Source MD302012 From Ruich Value?

  • Snout Integrity: Our forged 42CrMo steel structure and hardened keyway effectively prevent the front-end snapping common in the 4D56/D4BA platform.
  • Journal Longevity: High-density metallurgy and HRC 50-55 hardening protect the journals against scoring from the high-soot oil typical of mechanical diesel injection.
  • Precision OEM Alignment: Machined to exact standard (STD) dimensions, our crankshafts guarantee perfect oil clearance and drop-in installation with factory bearings.
  • Vibration Eradication: Every unit is dynamically spin-balanced at high RPMs to protect your oil pump, harmonic balancer, and engine block from destructive harmonics.
  • Export Certified: Each wholesale unit is subjected to Magnetic Particle Inspection (MPI) to verify a defect-free structure before being crated for global delivery.

Complete Mitsubishi & Hyundai Engine Component Catalog

Ruich Value provides comprehensive aftermarket support for Mitsubishi’s and Hyundai’s light commercial diesel engines. From cylinder heads to complete overhaul kits, streamline your fleet maintenance with our verified components.

Engine ModelMain Application
S4QMitsubishi Forklift, Mini Excavator, Caterpillar
4D30 / 4D31 (6 Holes)Fuso Canter, Rosa Bus
4D32 (9 holes)Fuso Canter
4D33 / 4D34Fuso Canter FE Series, Rosa Bus
4D35Fuso Canter
4D55Older L200, Pajero
4D56 / D4BAL200, Pajero, Hyundai H1/H100, Delica
4D56T / 4D56UL200 Triton, Pajero Sport (Common Rail)
4DR5Mitsubishi Jeep, Canter
4G15 / 4G13Mitsubishi Lancer, Colt, Mirage
4G54Pajero, Forklift, Mazda B2600
4G63Mitsubishi Forklift (FG25), Galant, L300
4G64Mitsubishi Forklift (FG25), Galant, L300
4M40Pajero, Delica, Triton
S4SMitsubishi Forklift, Clark, TCM Forklift
S6KTCAT 320 Excavator (Rebadged 6D16)
S4E / S4E2Forklift, Marine Engine
S4FAgriculture, Tractor
S4KCAT Excavator (E120B), Mitsubishi
S6KCAT Excavator (E200B), Mitsubishi
S6SForklift (FD35), Excavator
6D14 / 6D15Fuso Fighter, Kato/Kobelco Excavator
6D16 / 6D16TFuso Fighter, Kobelco SK330
6D17Fuso Fighter (Late model)
6D31 / 6D31TFuso FK, Excavators
6D34 / 6D34TFuso Fighter, Construction
6D22 / 6D20 / 6D24Fuso Super Great, Heavy Excavator
6D40Fuso Super Great (Heavy Truck)
8DC91 / 8DC92Fuso Super Great, Heavy Dump Truck
8DC11 / 8DC82Fuso Heavy Duty Truck
6G72Pajero V6, Montero
6DB1 / 6DB10Older Fuso Truck
6M70Fuso Super Great (Common Rail)
8PC1 / 8PE1Fuso Bus, Heavy Truck

Discover more solutions in our Mitsubishi Parts Hub.

Technical Q&A: Mitsubishi 4D56 / Hyundai D4BA Crankshaft

Why do 4D56 crankshafts snap at the front keyway?

Snapping is usually the result of a “wobbling” harmonic balancer. If the crank bolt is not torqued to the strict 170-190 Nm specification, or if the rubber damper in the pulley has perished, the vibration shears the keyway and snaps the snout. Our forged 1100A135/MD302012 upgrade offers the tensile strength needed to handle these shocks, but replacing the harmonic balancer and crank bolt is mandatory.

Is the MD302012 interchangeable with the newer 16V 4D56U engine?

No. The MD302012 profile is designed for the 8-valve mechanical injection engines (4D56 / D4BA). The newer 16-valve Common-Rail (DI-D) 4D56U engines use a different crankshaft (often OEM 1100A135) with different balancing and snout configurations. Always verify your engine code before ordering.

What causes main bearing wear in the Hyundai D4BA engine?

Bearing wear in these engines is often caused by oil contamination. In high-mileage H100 or L200 fleets, carbon soot from mechanical injectors can overwhelm the oil filter, creating an abrasive paste. Our induction-hardened journals (HRC 50-55) provide a robust shield against this scoring, but strict 5,000km oil change intervals are essential for longevity.

Do I need to order oversized bearings with this crankshaft?

No. All of our brand-new MD302012 crankshafts are precision-ground to exact OEM standard (STD) specifications (66.00 mm main journals, 52.50 mm rod journals). Simply order a new set of high-quality STD main bearings, connecting rod bearings, and thrust washers for a factory-spec rebuild.

How does Ruich Value package these crankshafts for wholesale export?

To ensure zero transit damage to the precision journals, every order is coated in industrial rust-preventative, wrapped in a moisture-blocking VCI bag, and securely packed inside a reinforced, export-grade wooden crate. We guarantee flawless delivery to our partners worldwide.

Request a Wholesale Quote

Equip your heavy repair shop or parts distribution network with premium Mitsubishi and Hyundai aftermarket components. Contact Ruich Value today for factory-direct wholesale pricing.

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For Any Inquiries, please feel free to contact us, Our sales teams are always glad to support your business