OEM Front Left Brake Wheel Cylinder 8-97139825-0 8971398250 8-97139-825-0 For ISUZU ELF NKR NQR NPR TURBO 4BD1 4HF1 4HG1 4JJ1 — 1-3/16″ (30.16mm) Drum Brake Cylinder With Copper Bleeder
| OEM Part Numbers: | 8-97139825-0 / 8971398250 / 8-97139-825-0 | Part Name: | CYLINDER; WHEEL, FRT BRK / Front Brake Wheel Cylinder |
| Fitting Position: | Front Axle, Left Hand (LH) | Bore Diameter: | 1-3/16″ (30.16 Mm) |
| Gear Teeth: | 16 | Thread Size: | M10 × 1.0 |
| Material: | Heavy-Duty Cast Iron With Corrosion-Resistant Silver Finish | Includes: | Copper Bleeder Screw + Gear Adjuster |
| Net Weight: | Approx. 1,215 G (1.215 Kg) | Engine Compatibility: | ISUZU 4BD1, 4HF1, 4HG1 |
| Vehicle Compatibility: | ISUZU ELF, NKR, NQR, NPR TURBO, NPR | Production Years: | 1994 Onwards |
| Certification: | ISO/TS16949 | Condition: | Brand New — 100% Quality Inspected |
| Warranty: | 12 Months | ||
| High Light: | ISUZU ELF brake wheel cylinder,OEM drum brake cylinder 30.16mm,ISUZU truck brake cylinder with bleeder |
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This OEM-grade Front Left Brake Wheel Cylinder is a direct replacement for ISUZU ELF, NKR, NPR, NQR, and other commercial truck models. Manufactured to ISUZU's stringent specifications, it features a precision 1-3/16″ (30.16mm) bore and heavy-duty cast iron construction for reliable braking performance in demanding commercial applications.
- Brake Fluid Leakage: Visible fluid seeping from front wheels or inside brake drum
- Soft or Spongy Brake Pedal: Pedal feels unusually soft or goes to the floor
- Uneven Braking: Vehicle pulls to one side during braking
- Reduced Braking Performance: Longer stopping distance or increased pedal pressure
- Contaminated Brake Shoes: Brake fluid soaking into brake shoes
- Low Brake Fluid Level: Unexplained drop in reservoir level
| Brand | Model | Chassis/Series | Engine | Years |
|---|---|---|---|---|
| ISUZU | ELF | NKR8_, NKQ8_ | 4BD1, 4HF1 | 1994 onwards |
| ISUZU | NKR | N-Series | 4BD1, 4HF1 | 1994 onwards |
| ISUZU | NPR | N-Series | 4BD1, 4HF1, 4HG1 | 1994 onwards |
| ISUZU | NQR | N-Series | 4HF1, 4HG1 | 1994 onwards |
| ISUZU | NLR | N-Series | 4JJ1 | 2008 onwards |
| ISUZU | NMR | N-Series | 4JJ1 | 2008 onwards |
| Part Number | Description | Position |
|---|---|---|
| 8-97139825-0 / 8971398250 | Front Brake Wheel Cylinder | Left Hand (LH) - This Part |
| 8-97139824-0 / 8971398240 | Front Brake Wheel Cylinder | Right Hand (RH) - Counterpart |
| 8970221431 / 8970221430 | Front Brake Wheel Cylinder | LH (alternate variant) |
| QC Item | Verification Method |
|---|---|
| Dimensional Accuracy | Precision inspection to verify 1-3/16″ bore diameter and dimensions |
| Material Composition | Heavy-duty cast iron analysis for structural integrity |
| Bore Surface Test | 100% surface testing for optimum sealing surface |
| Leakage Test | 100% hydraulic pressure test for zero fluid leakage |
| Durability Cycle Test | 500+ hour fatigue testing for 200,000+ km service life |
- Quantity Required: 2 per vehicle (one for each front wheel)
- Inspect brake shoes, drums, and hardware for wear before installation
- Use new brake fluid (DOT 3 or DOT 4) from sealed container
- Torque mounting bolts to manufacturer's specified settings
- Bleed brake system thoroughly using copper bleeder screw
- Test brake pedal feel and performance before road test
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