Need a direct replacement for the factory ME300086?Our MITSUBISHI 6D34T Crankshaft starts with 40Cr forgings sourced from a China Top-500 mill, finish-machined and induction-hardened on our own line. This crankshaft can be directly installed on Kobelco excavators powered by 6D34T engines, providing the same torsional strength as original parts at a lower cost.Popular specs are in stock for 3-day dispatch; custom journals or logo marking can be ready in weeks.

Product Specifications

ENGINE NO	6D34T	Gross weight(kg)	55
OEM/PART NO	ME300086	Length(mm)	923.5
Crankshaft Material	Forged steel 40Cr	Main journal(mm)	78
Engine type	diesel engine	Crankpin journal(mm)	65
Application	Kobelco Excavators	Stroke(mm)	115
Anti-rusty Coating	Yes	Hardness(HRC)	HRC52-58

Product Advantages

(1)Multi-Stage Heat Treatment

We run every MITSUBISHI 6D34T Crankshaft through a three-step cycle-temper, medium-frequency quench, second temper-built on our own line. The result is a 3–5 mm skin at HRC 52-58 that survives turbo boost and shock loads without the warping that sidelines softer shafts.

(2)Journal Precision Polishing

We use high-precision crankshaft grinding machines to perform multiple precision grinding operations on the crankshaft. This ensures that the roundness tolerance of the journal is less than 0.005 mm and the surface roughness Ra is ≤0.4 microns. Using such a crankshaft reduces friction and oil consumption, optimizes oil film stability, and, in conjunction with dynamic balancing technology, ensures smooth engine operation.

(3)Quality Assurance & Testing

Every MITSUBISHI 6D34T crankshaft is subject to 30+ inspections:

Ultrasonic Testing (UT) for internal cracks or inclusions
Magnetic Particle Inspection (MT) for surface defects
Dynamic Balance Testing: residual imbalance ≤10 g·cm/kg
Hardness Verification to maintain HRC 52–58 range
Third-party reports available on request

MITSUBISHI 6D34T crankshaft ISO certification

Application

The forged steel MITSUBISHI 6D34T crankshaft is built for:

Kobelco Excavators: Ideal for continuous digging and mining operations
Kato & New Holland Excavators: Reliable under high-load cycles
Turbocharged Diesel Engines: Specifically designed for 6-cylinder

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Packaging and Shipping

Options: Ply wood and crude wood, rust-proof oil coating, oil paper wrapping for crankshafts

Delivery Time: Stock items shipped within 7 days; custom orders approximately 90 days

Shipping: Sea freight, reinforced packaging suitable for global shipping

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FAQ (Answering Common Questions)

Q: Do you have a quality control department?

A: Yes, we have a specialized technical department for product quality control and testing.

Q: Do you have a showroom?

A: Yes, we have a specialized showroom in Guangzhou.

Q: Can you customize products for customers?

A: Yes, we can customize products according to your needs, we have R&D department, our technicians will try their best to meet your requirements.

Q: Do you have a booth at trade shows?

A: Yes, we have booths in global exhibitions and European exhibitions as well as Southeast Asian exhibitions.

Contact now

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