Clutch Release Bearing Throw-Out Bearing with Double Rubber Seals High-Carbon Chromium Steel and HRC 60-64 Hardness for Isuzu NPR 4BD1
| Hardness: | HRC 60-64 | Seal Type: | Double Rubber Seals (2RS) – Pre-lubricated |
| Bearing Type: | Deep-groove Ball Bearing (2RS Sealed) | Material: | High-carbon Chromium Steel (chrome Steel) |
| Engine Displacement: | 3.9L (3900 CC) | Cooling Type: | Engine Coolant Circulation |
| Installation: | Direct OEM Replacement | Quality Standard: | OEM Equivalent / ISO Quality Control |
| High Light: | Clutch release bearing for Isuzu NPR,Double rubber seals throw-out bearing,High-carbon chromium steel clutch bearing |
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The Clutch Release Bearing (OEM Numbers: 8-94389416-1 / 8943894161, also referenced as RCT432 / RCT432SA) is a premium-quality, direct replacement component designed for Isuzu NPR series trucks equipped with the 4BD1 diesel engine.
| Part Number | 8-94389416-1, 8943894161, RCT432, RCT432SA |
| Product Name | Clutch Release Bearing / Throw-Out Bearing |
| Car Model | ISUZU NPR (NPR59, NPR66, NPS, NQR, ELF) |
| Engine Model | ISUZU 4BD1 (3.9L Diesel) |
| Condition | 100% Brand New |
| Origin | China Mainland |
| Warranty | 6 Months |
- OE Quality: Manufactured to Isuzu dimensional and performance specifications for perfect fit and reliable clutch disengagement
- Self-Centering Design: Automatically adjusts for eccentricity during clutch operation, reducing wear on clutch and bearing
- Precision Ball Bearing: Smooth rotation with minimal friction, reducing clutch pedal effort
- Double Rubber Seals (2RS): Retains high-temperature grease and excludes clutch dust and debris
- Heat-Treated Steel: Races and balls hardened (HRC 60-64) for wear resistance and long life
- Pre-Lubricated: Factory-filled with high-temperature grease - do not wash with solvents
- Restores Clutch Operation: Eliminates grinding noise, hard shifting, and clutch drag
- Direct Replacement: Matches OE dimensions - simple installation on the clutch fork or input shaft sleeve
- Cost-Effective: Affordable alternative to genuine OEM without compromising reliability
This clutch release bearing is specifically designed for Isuzu NPR trucks with 4BD1 engine.
- ISUZU NPR (NPR59, NPR66, NPS, NQR, ELF)
- ISUZU NPR59 (1984-1990, 4BD1 3.9L)
- ISUZU NPR66 (1993-2006)
- 4-Cylinder, Inline Diesel, OHV
- Displacement: 3.9L (3900 CC)
- Remove transmission - as per clutch replacement procedure
- Remove old release bearing - unclip from the clutch fork or slide off the input shaft sleeve
- Inspect the clutch fork and input shaft sleeve - clean and lubricate contact points with high-temperature grease (small amount)
- Install new release bearing - clip onto the fork or slide onto the sleeve (depending on design). Ensure it moves freely
- Reinstall transmission - align input shaft with clutch disc splines using alignment tool
- Adjust clutch pedal free play (if cable-operated) or bleed hydraulic system (if hydraulic)
- Test drive - listen for bearing noise and check smooth clutch engagement
- Material Verification: Bearing steel composition tested to meet GCR15/52100 standards
- Dimensional Inspection: ID, OD, width, and radial runout verified against OE blueprints
- Hardness Testing: Rockwell hardness (HRC 60-64) confirmed on races and balls
- Noise/Vibration Test: Each bearing spun to check for smooth, quiet operation
- Seal Integrity Test: Double seals checked for proper fit and grease retention
- Visual Inspection: 100% checked for rust, pitting, scratches, or cage damage
- Certification: ISO9001:2008 certified
- Packaged Safely: Bearing coated with anti-rust oil, sealed in plastic bag, boxed in neutral packaging
- Neutral export packing or customized packaging available
- Carton or wooden case for safe transportation
- Fast delivery for stock items
- Shipping by Express Air or Sea
please contact our sales team for a competitive quote and expert technical support.
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