Clutch Disc 300mm Outer Diameter with Non-asbestos Friction Material and 4-Spring Damper System for ISUZU NKR NPR 4JH1 4HF1 4HG1
| Outer Diameter: | 300mm | Spline Teeth: | 14 Teeth |
| Thickness: | 14mm | Hub Material: | Steel |
| Inner Diameter: | 190mm | Net Weight: | 3.0–3.5kg |
| Spline Bore: | 35.2mm | Damper Springs: | 4 Springs |
| High Light: | 300mm Outer Diameter Clutch Disc,Non-asbestos Friction Material Clutch Plate,4-Spring Damper System Driven Plate |
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The Clutch Disc with OEM numbers 8973771490 / 8-97377149-0 (EXEDY cross-reference ISD086U) is a verified direct-fit replacement for ISUZU NKR / NPR / NQR series light trucks equipped with 4JH1 / 4JH1T / 4HF1 / 4HG1 / 4HG1T engines. This critical component transmits engine power to the transmission for smooth starts and gear shifts.
The clutch disc is installed between the engine flywheel and pressure plate, transmitting engine torque through friction contact. When the clutch pedal is depressed, the pressure plate disengages, separating the disc from the flywheel to cut power transmission for gear shifting. This product features a 4-spring damper design to effectively absorb torsional vibrations for smooth power delivery.
- Clutch Slippage — Engine RPM rises but vehicle speed does not increase during acceleration
- Clutch Drag — Difficulty shifting gears; gear grinding
- Juddering During Takeoff — Vehicle shakes noticeably during launch
- Clutch Noise — Clicking or grinding sounds when operating pedal
- Increased Pedal Travel — Clutch engagement point rises
- Installation Success Rate: 98.5% direct fitment rate
- Dimensions: 300mm OD × 190mm ID × 14mm thickness × 35.2mm spline bore
- Friction Facing Diameter: 300mm
- Spline Teeth: 14 teeth (14 Spline)
- Damper Springs: 4 springs
- Net Weight: 3.0–3.5kg
- Friction Material: Non-asbestos friction material
- Material: Steel splined hub + high-friction facing
- Warranty: 12 months / 30,000 km
- Quality: 100% Factory Tested
| Part Number | 8973771490 8-97377149-0 |
|---|---|
| Product Name | Clutch Disc |
| Car Model | NKR |
| Engine Model | 4JH1 4HF1 4HG1 |
| Condition | 100% Brand New |
| Origin | China Mainland |
| Brand | Model | Chassis | Engine |
|---|---|---|---|
| ISUZU | NKR | NKR77 | 4JH1 / 4JH1T |
| ISUZU | NPR | NPR66 | 4HF1 |
| ISUZU | NPR | NPR70 | 4HG1 |
| ISUZU | NQR | NQR70 | 4HE1 |
| ISUZU | NPR | NPR71 | 4HG1 |
| ISUZU | NQR | NQR71 | 4HG1 |
| Engine Model | Displacement | Description |
|---|---|---|
| 4JH1 | 3.0L | 4-cylinder diesel engine |
| 4JH1T | 3.0L | 4-cylinder turbo diesel engine |
| 4HF1 | 4.3L | 4-cylinder diesel engine |
| 4HG1 | 4.3L | 4-cylinder diesel engine |
| 4HG1T | 4.3L | 4-cylinder turbo diesel engine |
| QC Item | Verification Method | Standard |
|---|---|---|
| Friction Material Composition | Material analysis | Meets non-asbestos friction material standard |
| Friction Coefficient Test | Friction testing machine | Meets OEM friction coefficient standard |
| Dimensions | Precision gauge | Meets OEM installation dimension standards |
| Spline Dimensions | Spline go/no-go gauge | 14 teeth, dimensions合格 |
| Dynamic Balance Test | Dynamic balancing machine | Meets OEM balance specifications |
- Safety Prep — Disconnect battery negative terminal; lift and securely support the vehicle
- Remove Transmission — Remove driveshaft and transmission mounting bolts; slide transmission rearward
- Remove Old Clutch — Loosen pressure plate bolts in diagonal sequence; remove old components
- Inspect Flywheel — Check flywheel friction surface for scoring, grooves, or heat cracks
- Clean Surfaces — Thoroughly clean flywheel and pressure plate friction surfaces
- Install New Clutch Disc — Install new clutch disc; use clutch alignment tool for precise centering
- Install Pressure Plate — Install pressure plate; torque bolts in diagonal sequence to specification
- Remove Alignment Tool — Confirm disc is centered; remove alignment tool
- Install Transmission — Slide transmission back into position; torque mounting bolts
- Adjust Clutch Pedal — Check and adjust clutch pedal free play to specification
- Road Test — Perform road test to confirm smooth operation
| Item | Interval |
|---|---|
| Clutch System Inspection | Every 20,000 km or 12 months |
| Clutch Disc Inspection | When slippage, juddering, or shifting difficulty occurs |
| Clutch Disc Replacement | When slippage, wear to limit, or during clutch kit replacement |
- Packaging: Neutral carton / Branded color box / Custom branded packaging
- Packaging Unit: 1 piece/box
- Unit Net Weight: 3.0–3.5kg
- MOQ: 1 piece; volume discounts available
- Target Customers: Truck parts wholesalers, repair chain stores, fleet purchasers, cross-border e-commerce sellers
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