High-durability Isuzu C240 crankshaft engineered for TCM, Hyster, and Toyota forklifts. Replaces OEM 8-94139-678-0 with induction-hardened forged steel to ensure reliability in industrial fleets. Wholesale ready.
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The Isuzu C240 engine crankshaft (OEM: 8-94139-678-0) is an industrial-grade component designed for heavy-duty forklifts and Elf 250 trucks.
It features induction-hardened journals to prevent premature wear and vibration in TCM, Hyster, and Toyota equipment, ensuring stable performance in logistics and warehouse environments.
Bulk wholesale stock available for immediate international shipping.
Maximize the uptime of your material handling fleet with a precision-engineered replacement Isuzu C240 Crankshaft. As the central rotating assembly of the globally renowned C240 2.4L diesel engine, this component is the definitive repair solution for industrial engines suffering from high-hour fatigue, journal wear, or catastrophic bearing failure. A rebuild utilizing this durable engine shaft ensures your equipment maintains the torque and reliability required for daily industrial operations.
This crankshaft is produced to reflect Isuzu’s standing as a “Commercial Vehicle Specialist” with deep expertise in diesel powertrains. Manufactured from high-grade materials and balanced to strict industrial tolerances, it is designed to withstand the rigorous stop-and-go cycles of forklift applications. It is the trusted aftermarket choice for a vast array of equipment, fitting popular models from TCM, Komatsu, Hyster, and Yale, ensuring your warehouse and logistics operations remain uninterrupted.
| Technical Feature | Detailed Specification |
|---|---|
| Engine Compatibility | Isuzu C240 (4-Cylinder Diesel) |
| OEM Part Number | 8-94139-678-0 / 8941396780 / 8-94139-670-0 |
| Common Applications | TCM, Hyster, Toyota, Yale Forklifts; Isuzu Elf 250 |
| Manufacturing Material | Forged Steel / High-Grade Alloy Steel |
| Technical Parameters | Stroke: 102mm | Main Journal: 69.9mm | Conrod Journal: 52.9mm |
| Surface Hardness | HRC 55-62 (Induction Hardened) |
Ruich Value is your comprehensive source for Isuzu diesel engine crankshafts, covering both automotive and industrial applications. From small forklift engines to heavy-duty truck powerplants, we supply the core components you need.
Category coverage: Isuzu 4JB1 & 4JG2 Crankshafts; 4BD1 & 6BG1 Industrial Cranks; 4HK1 & 6HK1 Series Engine Shafts.
| Model | Model | Model | Model |
|---|---|---|---|
| 4HF1 | 4BG1 | 4ZD1 | 6BG1 |
| 4HG1T | 4FC1 | 4ZA1 | 6HE1 |
| 4HK1 | 4JA1 | 4ZB1 | 6HK1 |
| 4HE1T | 4JB1/4JB1T | 4BD1 | 6SD1 |
| 4BA1 | 4DA1 | 4JJ1 | 6WA1 |
| 4BC2 (DB33) | DH100 | G161 | 6WG1 |
| 4JG1 | C223 | 6BB1 (NEW) | 6HH1 |
| 4JG2 | C240 | 6BB1 (OLD) | 6QA1 |
| C190 | 600P | DB58 | 10PC1 |
| 4BB1A | 4ZE1 | 6BF1 | 10PB1 |
| 6BD1 | 10PE1 | 4BE1 | 12PD1 |
| 6SA1 | 10PD1 | 12PC1 |
Q1: What are the primary signs of crankshaft failure in the Isuzu C240 engine?
A: Most forklift operators report deep metallic knocking sounds from the lower block, loss of oil pressure, or excessive engine vibration. These issues are often caused by journal wear or oil passage clogging, leading to bearing seizure if not addressed quickly.
Q2: Does this crankshaft fit Hyster and TCM forklifts simultaneously?
A: Yes, the Isuzu C240 is a standard power unit for many brands. Part number 8-94139-678-0 is a direct cross-reference for Hyster (H2.00-3.00XL series) and most TCM forklift models utilizing the C240 diesel engine.
Q3: What is the recommended torque for the main bearing caps?
A: For the Isuzu C240, the main bearing cap bolts should be torqued to 115-130 ft-lb (156-176 Nm). Ensure the threads are clean and lightly oiled to achieve accurate clamping force during installation.
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