Rear Left Brake Wheel Cylinder 8-97139823-0 8971398230 8-97022144-0 For ISUZU ELF NKR NQR NPR TURBO 4BD1 4HF1 4HG1 4HK1 — OEM 1-3/16″ (30.2mm) Drum Brake Cylinder With Copper Bleeder & Gear Adjuster
| OEM Part Numbers: | 8-97139823-0 / 8971398230 / 8-97139-823-0 | Part Name: | CYLINDER; WHEEL, RR BRK / Rear Brake Wheel Cylinder |
| Fitting Position: | Rear Axle, Left Hand (LH) Rearward | Bore Diameter: | 1-3/16″ (30.2 Mm) |
| Gear Teeth: | 16 | Thread Size: | M10 × 1.0 |
| Material: | Heavy-Duty Cast Iron With Corrosion-Resistant Finish | Includes: | Copper Bleeder Screw + Gear Adjuster |
| Net Weight: | Approx. 1.23 Kg | Customs Code: | 870830000 |
| Engine Compatibility: | ISUZU 4BD1, 4HF1, 4HG1, 4HK1, 4JJ1 | Vehicle Compatibility: | ISUZU ELF, NKR, NQR, NPR TURBO, NPR, NPS, NLR, NMR |
| Production Years: | 1992 Onwards | Condition: | Brand New — 100% Quality Inspected |
| Warranty: | 12 Months | ||
| High Light: | ISUZU ELF brake wheel cylinder,OEM drum brake cylinder 30.2mm,ISUZU truck brake cylinder with copper bleeder |
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This OEM-grade Rear Brake Wheel Cylinder with part numbers 8-97139823-0, 8971398230, and 8-97022144-0 is a direct replacement for ISUZU ELF, NKR, NQR, NPR TURBO, and NPR series trucks. Manufactured to ISUZU's specifications, this critical drum brake component converts hydraulic pressure into mechanical force for reliable stopping power.
- OEM Specification — Verified by ISUZU OEM part numbers
- Precision 1-3/16″ (30.2mm) Bore — Confirmed by parts catalogs
- Heavy-Duty Cast Iron Construction — Exceptional durability and heat dissipation
- Complete with Copper Bleeder & Gear Adjuster — Easy brake bleeding and adjustment
- Verified OEM Fitment — Confirmed for ISUZU models with 4BD1, 4HF1, 4HG1, 4HK1 engines from 1992 onwards
| Part Number | 8-97139823-0 8971398230 8-97022144-0 |
| Product Name | Brake Wheel Cylinder |
| Car Model | ISUZU ELF NKR NQR NPR |
| Engine Model | ISUZU 4BD1 4HF1 4HG1 4HK1 |
| Condition | 100% Brand New |
If your rear brake wheel cylinder is failing, you may experience:
- Brake Fluid Leakage — Visible fluid seeping from rear 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 distances or increased pedal pressure
- Contaminated Brake Shoes — Brake fluid soaking into brake shoes
| Brand | Model | Chassis / Series | Engine | Years |
|---|---|---|---|---|
| ISUZU | ELF | NKR8_, NKQ8_ | 4BD1, 4HF1 | 1992 onwards |
| ISUZU | NKR | N-Series | 4BD1, 4HF1, 4JG2 | 1992 onwards |
| ISUZU | NQR | N-Series | 4HF1, 4HG1, 4HK1 | 1992 onwards |
| ISUZU | NPR TURBO | N-Series | 4HF1, 4HG1, 4HK1 | 1992 onwards |
| ISUZU | NPR | N-Series | 4BD1, 4HF1, 4HG1 | 1992 onwards |
| Part Number | Description | Position |
|---|---|---|
| 8-97139823-0 / 8971398230 | Rear Brake Wheel Cylinder | Left Hand (LH) Rearward — This Part |
| 8-97139822-0 / 8971398220 | Rear Brake Wheel Cylinder | Right Hand (RH) Front — Counterpart |
| 8-97022144-0 / 8970221440 | Rear Brake Wheel Cylinder | LH (earlier variant) |
| QC Item | Verification Method |
|---|---|
| Dimensional Accuracy | Precision inspection to verify 1-3/16″ bore diameter and gear adjuster 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 |
| Rubber Component Test | EPDM material verification for heat and corrosion resistance |
| Durability Cycle Test | 500+ hour fatigue testing for 200,000+ km service life |
Pre-Installation Checklist:
- This is the Rear Left-Hand (LH) Rearward cylinder
- Quantity Required: 2 per vehicle (one for each rear wheel)
- Inspect brake shoes, drums, and hardware for wear
- Use new brake fluid (DOT 3 or DOT 4) from sealed container
- Replace wheel cylinders in pairs for balanced braking
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
- Net Weight: Approx. 1.23 kg
- Customs Code: 870830000
- Suitable for: Wholesale distributors, truck parts retailers, repair shops, and fleet owners
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