ISUZU Main Crankshaft Bearings STD - 8973879640
High-quality main crankshaft bearing set (nominal STD size), designed for ISUZU 4JJ1 4JB1 4JG1 4JG2 4JA1 4JB1 engines. These components are crucial for proper bearing support and lubrication of the crankshaft in the engine block. They guarantee minimized friction, high wear resistance, and adequate transfer of extreme loads during the operation of the power unit in heavy construction machinery.
Technical Specification:
- Part type: Main crankshaft bearings (set).
- Size: STD (Nominal / Standard).
- Engine compatibility: ISUZU 4JJ1 4JB1 4JG1 4JG2 4JA1 4JB1
- Part Number: 8-97387964-0.
Machine Compatibility:
| Brand and Category | Models and Variants |
|---|
| Case (Tracked excavators) |
CX130, CX135, CX145, CX160, CX180 |
| Hitachi (Tracked excavators) |
EX60, EX70, EX75, EX90, EX100, EX120, ZX55 |
| JCB (Tracked excavators and mini excavators) |
JS series and 8000 series mini excavators |
| New Holland (Tracked excavators) |
9007, E70, E80 |
| Other Excavators / Mini Excavators |
Doosan: SOLAR 055; John Deere: 135D; Sany: SY75; Takeuchi: TB070, TB114 |
| Bobcat (Skid steer loaders) |
843, 853 |
|
Workshop Tip: Before installing new main bearings, absolutely check the condition of the crankshaft journals for scratches, ovality, and micrometric wear, ensuring that the crankshaft does not require grinding to the next oversize. Thoroughly clean the engine block, main bearing caps, and ensure that the oil channels are completely clear. During assembly, use a specialized assembly lube and tighten the main bearing cap bolts with a torque wrench strictly according to the instructions and torque specs in the ISUZU service manual.
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