Front Left Rear Brake Wheel Cylinder 8-97139819-0 8971398190 8-97022031-1 8970220311 For ISUZU ELF NKR NPR NQR 4HF1 4BE1 4HG1 — OEM 1-3/16″ (30.2mm) Drum Brake Cylinder With Bleeder Screw
Price:
Negotiable
MOQ:
10 pcs
Delivery Time:
5-8 Work Days
Brand:
YIMI
Product Description
Front Left Rear Brake Wheel Cylinder 8-97139819-0 8971398190 8-97022031-1 8970220311 For ISUZU ELF NKR NPR NQR 4HF1 4BE1 4HG1 — OEM 1-3/16″ (30.2mm) Drum Brake Cylinder With Bleeder Screw
Product Overview
The Front Brake Wheel Cylinder with OEM numbers 8-97139819-0 (also listed as 8971398190, 8-97022031-1, 8970220311) 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 NLR series.
This wheel cylinder is the Front Left-Hand (LH) Rear unit for RHD (Right-Hand Drive) vehicles. It features a precision 1-3/16″ (30.2mm) bore and is supplied with a bleeder screw for easy brake system bleeding during installation.
Important Cross-Reference Note: Part numbers 8-97139819-0, 8971398190, 8-97022031-1, and 8970220311 are interchangeable for these applications. The Right-Hand (RH) counterpart is 8-97139818-0 / 8971398180 / 8-97022030-1.
- OEM Specification — Verified by ISUZU OEM part numbers
- Precision 1-3/16″ (30.2mm) Bore — Verified by AUTOTEC EBS and manufacturer specifications
- Heavy-Duty Cast Iron Construction — Provides exceptional durability and heat dissipation
- Complete with Bleeder Screw — Easy brake system bleeding during installation
- Verified OEM Fitment — Confirmed for ISUZU ELF, NKR, NPR, NQR models with 4HF1, 4BE1, 4HG1 engines
- OEM Cross-Reference Verified — Interchangeable with TRW BWN787, Seiken SW-G354, and other major brands
Failure Symptoms
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
⚠️ A failing brake wheel cylinder can lead to reduced braking performance and potential brake failure — prompt replacement is essential. For optimal performance, it is strongly recommended to replace brake wheel cylinders in pairs (both front wheels).
Vehicle & Engine Compatibility
CRITICAL: This wheel cylinder is the Front Left-Hand (LH) Rear unit for RHD vehicles. The Right-Hand (RH) counterpart is 8-97139818-0 / 8971398180 / 8-97022030-1.
Primary Applications
| Brand | Model | Chassis / Series | Engine | Years |
|---|---|---|---|---|
| ISUZU | ELF | NKR8_, NKQ8_ | 4HF1, 4BE1 | 1992 onwards |
| ISUZU | NKR | N-Series | 4HF1, 4BE1 | 1992 onwards |
| ISUZU | NPR | N-Series | 4HF1, 4BE1, 4HG1 | 1992 onwards |
| ISUZU | NQR | N-Series | 4HF1, 4HG1 | 1992 onwards |
| ISUZU | NLR | N-Series | 4HF1 | 1992 onwards |
Cross-Reference Part Numbers
| Part Number | Description | Position |
|---|---|---|
| 8-97139819-0 / 8971398190 | Front Brake Wheel Cylinder | Left Hand (LH) Rear — This Part |
| 8-97139818-0 / 8971398180 | Front Brake Wheel Cylinder | Right Hand (RH) Rear — Counterpart |
| 8-97022031-0 / 8970220310 | Front Brake Wheel Cylinder | LH (earlier variant) |
| 8-97022030-0 / 8970220300 | Front Brake Wheel Cylinder | RH (earlier variant) |
Features & Benefits
OEM Specification
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
Quality Control & Verification
| 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 |
Installation & Maintenance Recommendations
IMPORTANT: Professional Installation Recommended
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.
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 Left-Hand (LH) Rear cylinder — the RH counterpart is 8-97139818-0 / 8971398180
- 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 & Supply
- 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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Get in Touch
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Company
Yimi (Guangzhou) Automotive Parts Co, Ltd
Location
Unit 1313, Building 5, Changsheng DDP Fashion Center, No. 17 Dachi Road, Tancun, Shijing Subdistrict, Baiyun District, Guangzhou City.
Contact Person
James