Front Right Rear Brake Wheel Cylinder 8-97139818-0 8971398180 8-97022030-1 8970220301 For ISUZU ELF NKR NPR NQR 4HF1 4BE1 4HG1 — OEM 1-3/16″ (30.2mm) Drum Brake Cylinder With Bleeder Screw
| OEM Part Numbers: | 8-97139818-0 / 8971398180 / 8-97022030-1 / 8970220301 | Part Name: | CYLINDER; WHEEL, FRT BRK / Front Brake Wheel Cylinder |
| Fitting Position: | Front Axle, Right Hand (RH) Rear | Bore Diameter: | 1-3/16″ (30.2 Mm) |
| Thread Size: | M10 × 1.0 | Material: | Heavy-Duty Cast Iron With Corrosion-Resistant Finish |
| Includes: | Bleeder Screw | Weight: | Approx. 1.16 Kg |
| Engine Compatibility: | ISUZU 4HF1, 4BE1, 4HG1, 4JG2, 4JH1 | Vehicle Compatibility: | ISUZU ELF, NKR, NPR, NQR, NNR |
| Production Years: | 1992–2001 | Condition: | Brand New — 100% Quality Inspected |
| Warranty: | 12 Months | ||
| High Light: | ISUZU ELF brake wheel cylinder,OEM drum brake cylinder with bleeder,ISUZU NKR 30.2mm brake cylinder |
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The Front Brake Wheel Cylinder with OEM numbers 8-97139818-0 (also listed as 8971398180, 8-97022030-1, 8970220301) is a verified OEM-grade direct replacement for a wide range of ISUZU light and medium-duty trucks, including the ELF, NKR, NPR, NQR, and NNR series.
If your front brake wheel cylinder is failing, you may experience one or more of the following symptoms:
- Brake Fluid Leakage: Visible fluid seeping from the front wheels or inside the brake drum
- Soft or Spongy Brake Pedal: Pedal feels unusually soft or goes to the floor
- Reduced Braking Performance: Vehicle takes longer to stop or requires increased pedal pressure
- Uneven Braking: Vehicle pulls to one side during braking
- Contaminated Brake Shoes: Brake fluid soaking into the brake shoes
- Low Brake Fluid Level: Unexplained drop in brake fluid reservoir level
| Brand | Model | Chassis / Series | Engine | Years |
|---|---|---|---|---|
| ISUZU | ELF | NKR8_, NKQ8_ | 4HF1, 4BE1 | 1992-2001 |
| ISUZU | NKR | N-Series | 4HF1, 4BE1 | 1992-2001 |
| ISUZU | NPR | N-Series | 4HF1, 4BE1, 4HG1 | 1992-2001 |
| ISUZU | NQR | N-Series | 4HF1, 4HG1 | 1992-2001 |
| ISUZU | NNR | N-Series | 4HF1 | 1992-2001 |
| Part Number | Description | Position |
|---|---|---|
| 8-97139818-0 / 8971398180 | Front Brake Wheel Cylinder | Right Hand (RH) Rear — This Part |
| 8-97139819-0 / 8971398190 | Front Brake Wheel Cylinder | Left Hand (LH) Rear — Counterpart |
| 8-97022030-0 / 8970220300 | Front Brake Wheel Cylinder | RH (earlier variant) |
| 8-97022031-0 / 8970220310 | Front Brake Wheel Cylinder | LH (earlier variant) |
| Feature | Benefit + Verification Signal |
|---|---|
| OEM Specification — ISUZU Genuine Equivalent | Guarantees factory-fit quality and performance — verified by ISUZU OEM part numbers |
| Precision 1-3/16″ (30.2mm) Bore | Delivers consistent hydraulic pressure for reliable braking performance |
| Heavy-Duty Cast Iron Construction | Provides exceptional durability and heat dissipation under demanding commercial conditions |
| Complete with Bleeder Screw | Facilitates easy brake system bleeding during installation |
| ISO/TS16949 Certified | Manufactured under strict quality control standards |
| Direct Bolt-On Fitment | No modifications required — engineered as a direct match for the original cylinder |
| 100% New — No Core Charge | Guarantees zero wear, immediate braking performance, and full service life |
| QC Item | Verification Method |
|---|---|
| Dimensional Accuracy | Precision inspection to verify 1-3/16″ (30.2mm) bore diameter and mounting specifications |
| Material Composition | Heavy-duty cast iron analysis to verify structural integrity |
| Bore Surface Test | 100% surface testing to ensure optimum sealing surface |
| Leakage Test | 100% hydraulic pressure test to guarantee zero fluid leakage |
| Rubber Component Test | EPDM material verification for heat and corrosion resistance |
| Durability Cycle Test | 500+ hour fatigue testing to verify 200,000+ km service life |
| Final Assembly Inspection | 100% visual and functional inspection before packaging |
Replacing brake wheel cylinders is a critical safety procedure. It is strongly recommended to replace them in pairs (both front wheels) for balanced braking performance.
Pre-Installation Checklist:
- CRITICAL: This is the Front Right-Hand (RH) Rear cylinder — the LH counterpart is 8-97139819-0 / 8971398190
- Quantity Required: 2 per vehicle (one for each front wheel)
- Inspect brake shoes, drums, and hardware for wear — replace as necessary
- Use new brake fluid (DOT 3 or DOT 4) from a sealed container
- Critical: Replace wheel cylinders in pairs for balanced braking performance
Maintenance Schedule:
- Inspection: Every 50,000 km / 12 months
- Fluid Replacement: Every 2 years or 40,000 km
- Replacement: Immediately if failure symptoms appear
- Packaging: Neutral box, color box, or customer brand package
- Pack Quantity: 1 PC
- Weight: Approx. 1.16 kg
- Suitable for: Wholesale distributors, truck parts retailers, commercial vehicle repair shops, and fleet owners
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