Looking for a reliable 6D34 replacement? This forged Mitsubishi ME012174 crankshaft eliminates snout snapping for Kobelco SK200 excavators. In stock now.
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Looking for a definitive solution to 6D34 engine failures? This forged steel Mitsubishi 6D34/6D34T crankshaft (OEM: ME012174) is specifically engineered to cure front snout snapping and journal scoring in heavy-duty Kobelco SK200 excavators and Fuso Fighter trucks. Available for immediate global wholesale export.
The Mitsubishi 6D34 and 6D34T (turbocharged) 5.9L inline-6 diesel engines are renowned for delivering relentless hydraulic power, acting as the primary muscle for 20-ton class equipment like the Kobelco SK200 and Kato HD820 excavators, as well as mid-duty Fuso Fighter logistics trucks. However, operating an inline-6 engine under continuous, heavy hydraulic loads exposes the rotating assembly to massive torsional stress. When the engine’s viscous harmonic balancer ages and loses its damping ability, these destructive vibrations amplify along the crankshaft. In standard cast units, this invariably leads to micro-fractures, fatal front web snapping, and devastating engine block damage.
Ruich Value prevents these catastrophic job-site failures with our upgraded ME012174 replacement crankshaft. By abandoning traditional casting in favor of high-density 42CrMo forged steel, we multiply the tensile strength and fracture resistance of the crankshaft. We then induction-harden the massive 80mm main journals to HRC 50-55, creating a surface that aggressively resists scoring from silica dust and soot-contaminated oil common in construction environments. Whether you are managing a fleet of Kobelco excavators or rebuilding engines for commercial Fuso trucks, our dynamically balanced crankshaft ensures maximum uptime and unyielding reliability.
| OEM Part Number | ME012174 |
|---|---|
| Cross Reference | ME018296 |
| Engine Compatibility | Mitsubishi 6D34, 6D34T (5.9L Inline-6 Diesel) |
| Material Metallurgy | High-Tensile Forged Steel Alloy (42CrMo) |
| Surface Hardness | Induction Hardened Journals (HRC 50-55) |
| Stroke Length | 115.00 mm |
| Main Journal Diameter | 80.00 mm (Standard OEM Spec) |
| Rod Journal Diameter | 65.00 mm (Standard OEM Spec) |
| Balancing Standard | Computerized Dynamic Spin-Balanced |
| OEM Brand | Application Category | Known Compatible Models |
|---|---|---|
| Kobelco | Heavy Crawler Excavators | SK200-6, SK200LC-6, SK230-6, SK250 |
| Kato / Tadano | Excavators & Mobile Cranes | Kato HD820-3, Various Tadano Rough Terrain Cranes |
| Mitsubishi Fuso | Medium Commercial Trucks | Fuso Fighter (FK, FM series logistics trucks) |
| New Holland | Construction Equipment | E200SR, E235SR (Verify 6D34 Engine Spec) |
From the mid-sized 4D34 to the heavy-duty 6D34 and 6D16 platforms, Ruich Value provides premium aftermarket components for commercial engine rebuilders worldwide. Explore our inventory below.
| Engine Model | Main Application |
|---|---|
| S4Q | Mitsubishi Forklift, Mini Excavator, Caterpillar |
| 4D30 / 4D31 (6 Holes) | Fuso Canter, Rosa Bus |
| 4D32 (9 holes) | Fuso Canter |
| 4D33 / 4D34 | Fuso Canter FE Series, Rosa Bus |
| 4D35 | Fuso Canter |
| 4D55 | Older L200, Pajero |
| 4D56 / D4BA | L200, Pajero, Hyundai H1/H100, Delica |
| 4D56T / 4D56U | L200 Triton, Pajero Sport (Common Rail) |
| 4DR5 | Mitsubishi Jeep, Canter |
| 4G15 / 4G13 | Mitsubishi Lancer, Colt, Mirage |
| 4G54 | Pajero, Forklift, Mazda B2600 |
| 4G63 | Mitsubishi Forklift (FG25), Galant, L300 |
| 4G64 | Mitsubishi Forklift (FG25), Galant, L300 |
| 4M40 | Pajero, Delica, Triton |
| S4S | Mitsubishi Forklift, Clark, TCM Forklift |
| S6KT | CAT 320 Excavator (Rebadged 6D16) |
| S4E / S4E2 | Forklift, Marine Engine |
| S4F | Agriculture, Tractor |
| S4K | CAT Excavator (E120B), Mitsubishi |
| S6K | CAT Excavator (E200B), Mitsubishi |
| S6S | Forklift (FD35), Excavator |
| 6D14 / 6D15 | Fuso Fighter, Kato/Kobelco Excavator |
| 6D16 / 6D16T | Fuso Fighter, Kobelco SK330 |
| 6D17 | Fuso Fighter (Late model) |
| 6D31 / 6D31T | Fuso FK, Excavators |
| 6D34 / 6D34T | Fuso Fighter, Construction |
| 6D22 / 6D20 / 6D24 | Fuso Super Great, Heavy Excavator |
| 6D40 | Fuso Super Great (Heavy Truck) |
| 8DC91 / 8DC92 | Fuso Super Great, Heavy Dump Truck |
| 8DC11 / 8DC82 | Fuso Heavy Duty Truck |
| 6G72 | Pajero V6, Montero |
| 6DB1 / 6DB10 | Older Fuso Truck |
| 6M70 | Fuso Super Great (Common Rail) |
| 8PC1 / 8PE1 | Fuso Bus, Heavy Truck |
Discover our full selection in the Mitsubishi Parts Hub.
This specific snapping failure is caused by a degraded viscous harmonic balancer (crank pulley). The inline-6 architecture of the 6D34 produces severe torsional twisting under heavy excavator loads. When the internal fluid in the balancer fails, it no longer absorbs these vibrations, forcing the crankshaft’s front snout to absorb the stress until it shears off. Upgrading to our forged 42CrMo crankshaft adds immense strength, but replacing the harmonic balancer during installation is mandatory.
Yes. The ME012174 forged profile is engineered to handle the increased cylinder pressures and heavy-duty demands of both the naturally aspirated 6D34 and the turbocharged 6D34T variants used in SK200 excavators and Fuso Fighter trucks.
Main journal scoring is driven by abrasive contamination. In dusty environments, ultra-fine silica can bypass air filters and mix with the engine oil, creating a grinding paste. Our induction-hardened journals (HRC 50-55) provide a hardened shield against this wear, but maintaining strict air and oil filter service intervals is the only way to prevent premature engine failure.
No, oversized bearings are not required. All of our brand-new 6D34 crankshafts are precision-ground to exact OEM standard (STD) specifications (80.00 mm main journals, 65.00 mm rod journals). Simply order a new set of high-quality STD main bearings, connecting rod bearings, and thrust washers.
To completely eliminate the risk of transit damage, we coat every 6D34 crankshaft in industrial rust-preventative oil, hermetically seal it in a VCI anti-corrosion barrier bag, and bolt it securely inside a reinforced, export-grade wooden crate. This ensures flawless delivery to any global port.
Partner with Ruich Value to secure reliable, factory-direct aftermarket engine components for your heavy construction equipment and commercial truck fleets. Contact our export team today for wholesale pricing.
For Any Inquiries, please feel free to contact us, Our sales teams are always glad to support your business
