ISUZU 8-94313167-0 Clutch Release Bearing Seat with Precision Fit, Wear Resistance, and O-Ring Seal for NKR NHR 4JB1
A precision-engineered guide sleeve (release bearing seat) that supports and guides the clutch release bearing on the transmission input shaft. Ensures smooth, linear bearing travel for consistent clutch disengagement.
The Clutch Release Bearing Seat (OEM Numbers: 8-94313167-0 / 8943131671) is a precision-engineered, direct replacement component designed specifically for ISUZU NKR, NHR, and N‑series light trucks powered by the legendary 4JA1/4JB1 diesel engine family (2.5L, 2.8L).
- Precision Fit: Manufactured to exacting tolerances to ensure the release bearing slides smoothly and without play
- Wear Resistance: Constructed from high-grade, heat-treated steel for durable, long-lasting guide surface
- O-Ring Seal: Incorporates a sealing O-ring to protect the transmission's input shaft area from dust, debris, and potential fluid leaks
- Failure Symptoms: A worn or grooved release bearing seat often leads to clutch chatter, notchy pedal, difficulty shifting, and premature release bearing failure
| Part Number: | 8-94313167-0 8943131670 | Product Name: | Clutch Release Bearing Seat |
|---|---|---|---|
| Car Model: | ISUZU NKR NHR | Engine Model: | ISUZU 4JB1 |
| Condition: | 100% Brand New | Size: | Standard |
| Weight: | Standard | Origin: | China Mainland |
This release bearing seat is a direct OE replacement for the following ISUZU vehicles and compatible powertrain configurations. Please verify fitment using your specific chassis number, VIN, or original part number before ordering.
| Chassis / Model | Engine | Years / Notes |
|---|---|---|
| ISUZU NKR55 / NKR58 | 4JB1 (2.8L Diesel) | Light‑duty truck, 1984–1993, primary fitment |
| ISUZU NHR54 / NHR58 | 4JA1 (2.5L Diesel), 4JB1 | Light‑duty truck, 1988–1996 |
| ISUZU ELF 250 / 350 / 400 | 4JB1, 4JA1, 4JH1 | Export N‑series chassis |
| ISUZU NKR66 | 4JB1‑T | 1994–2005 |
| ISUZU NPR (select light-duty) | 4JB1, 4JA1 | Verify bellhousing type |
| JMC / Jiangling (licensed) | 4JB1‑based JX493 series | Chinese market variants |
- Prevent Clutch Drag & Hard Shifting: Provides smooth, low-friction guide path for release bearing
- Eliminate Clutch Noise (Chatter & Squeal): Prevents bearing wobble and misalignment
- Stop Premature Release Bearing Failure: Reduces wear on bearing from rough surfaces
- Fix Fluid Leaks at Bellhousing: O-ring seal prevents transmission fluid leaks
- Restore Smooth, Factory Pedal Feel: Eliminates play and binding for consistent operation
| Symptom | Likely Cause | Action |
|---|---|---|
| Notchy / stiff clutch pedal | Worn or grooved seat surface causing bearing binding | Replace seat; inspect bearing for damage |
| Clutch drag / hard shifting (especially into reverse) | Seat too worn; bearing cannot travel full distance | Replace seat; verify clutch fork movement |
| Clutch chatter / judder on take‑off | Worn seat leading to bearing misalignment | Replace seat; inspect pressure plate fingers |
| Whirring / grinding noise when pedal pressed | Premature release bearing failure due to rough seat | Replace seat AND release bearing as a set |
| Transmission fluid leak at bellhousing | Cracked seat or failed O‑ring seal | Replace seat with new O‑ring; inspect input shaft seal |
- Material Verification: High‑grade steel composition tested to meet JIS / SAE durability standards
- Dimensional Accuracy: Verified against OE blueprints using CMM equipment
- Surface Finish Inspection: Sliding surface inspected for micro‑finish (Ra ≤ 0.4 μm)
- Hardness Testing: Surface hardness (HRC) verified on batch samples
- O‑Ring Seal Fitment: O‑ring groove geometry verified for correct seal compression
- Heat Treatment Validation: Induction case depth verified to prevent surface pitting
- IATF 16949 / ISO 9001:2015 Certified: Facility meets international automotive quality standards
- Visual Inspection: 100% inspected for surface scoring, cracks, and imperfections
- Packaged Safely: Anti‑corrosion oil‑coated, individually sealed in moisture‑barrier VCI bag
- Individual Packaging: Anti‑corrosion oil‑coated, individually sealed in moisture‑barrier VCI bag with OE‑style part labeling
- Wholesale / Bulk Orders: Available for distributors, transmission rebuilders, workshop chains, and fleet operators
- Customization: Neutral or private‑label retail packaging available for volume wholesale orders
- Fast Shipping: Ready stock for immediate dispatch worldwide via express courier or sea freight
- Wholesale Support: Long‑term supply agreements, tiered commercial pricing, and drop‑shipping options
For pricing, availability, or bulk purchase of the ISUZU Clutch Release Bearing Seat 8-94313167-0 (8943131671) for NKR, NHR, and 4JB1/4JA1 diesel engine applications, please contact our sales team for a competitive wholesale quote and expert technical support. We respond to all inquiries within 24 hours.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.