Clutch Release Bearing With Housing 8-97255313-0 8972553130 78TKL4801 For ISUZU NKR77 NPR71 NQR75 4HG1 4HE1 4HK1 — OEM 48x78x32mm
Key Attributes
Product Summary
Clutch Release Bearing With Housing 8-97255313-0 8972553130 78TKL4801 For ISUZU NKR77 NPR71 NQR75 4HG1 4HE1 4HK1 — OEM 48x78x32mm Product Overview The Clutch Release Bearing with Housing (BLOK; SHIFT, CLU) with OEM numbers 8-97255313-0 (also listed as 8972553130, 8-97255-313-0, 78TKL4801) is a ...
Product Details
Clutch release bearing for ISUZU NKR77
,ISUZU truck clutch bearing with housing
,OEM clutch bearing 48x78x32mm
The Clutch Release Bearing with Housing (BLOK; SHIFT, CLU) with OEM numbers 8-97255313-0 (also listed as 8972553130, 8-97255-313-0, 78TKL4801) is a verified OEM-grade direct replacement for ISUZU NKR, NPR, NQR, and ELF series light and medium-duty trucks.
- Noise when pressing clutch pedal (whining, grinding, or squealing)
- Difficulty shifting gears with grinding noises
- Vibration or juddering through clutch pedal or floor
- Clutch pedal feels spongy or stiff
- Complete loss of clutch function in severe cases
| Brand | Model | Series | Engine |
|---|---|---|---|
| ISUZU | NKR55 | N-Series | 4JB1 |
| ISUZU | NKR77 | N-Series | 4JH1, 4JH1T, 4HF1, 4HG1 |
| ISUZU | NPR70 | N-Series | 4HE1 |
| ISUZU | NPR71 | N-Series | 4HG1 |
| ISUZU | NPR75 | N-Series | 4HK1 |
| ISUZU | NPR85 | N-Series | 4HK1 |
| ISUZU | NQR71 | N-Series | 4HG1 |
| ISUZU | NQR75 | N-Series | 4HK1 |
| QC Item | Verification Method |
|---|---|
| Dimensional Accuracy | Precision inspection to verify 48mm ID, 78mm OD, and 32mm width match OE specifications |
| Bearing Rotation Test | 100% rotation testing to verify smooth, noiseless bearing operation |
| Housing Integrity Test | Visual and dimensional inspection of housing for cracks or deformation |
| Durability Cycle Test | 500+ hour fatigue testing to verify 200,000+ km service life |
| Final Assembly Inspection | 100% visual and functional inspection before packaging |
Pre-Installation Checklist:
- Always replace the clutch disc and pressure plate simultaneously
- Inspect transmission input shaft guide tube for wear or damage
- Check clutch release fork and pivot for wear
- Clean guide tube and apply light coating of high-temperature grease
- Ensure vehicle is securely supported on jack stands
Maintenance Schedule:
- Inspection: During clutch service or if noise/shifting issues appear
- Replacement: Recommended at 100,000-150,000 km or whenever clutch is serviced
- Note: Driving habits significantly affect service life
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