Yimi (Guangzhou) Automotive Parts Co, Ltd
| Payment Terms | T/T |
| Material | High-Strength Cast Iron |
| Brake Type | Drum Brake |
| Delivery Time | 5-8 Work Days |
| Pressure Rating | 12 MPa (1,740 PSI) |
| Bleeder Screw | Included |
| Certifiion | ISO/TS16949 |
| Installation Position | Front Right (RH) |
| Supply Ability | 10000 pcs/month |
| Mounting Holes | 4 holes |
| Bore Size | 1-3/16 Inch (30.16mm / 30.163mm) |
| Packaging Details | Neutral Package or as customers’ request |
| Net Weight | 1.089～1.11 kg |
| Model Number | NKR NPR 4HF1 4BE1 |
| Brand Name | YIMI |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | T/T | Material | High-Strength Cast Iron |
| Brake Type | Drum Brake | Delivery Time | 5-8 Work Days |
| Pressure Rating | 12 MPa (1,740 PSI) | Bleeder Screw | Included |
| Certifiion | ISO/TS16949 | Installation Position | Front Right (RH) |
| Supply Ability | 10000 pcs/month | Mounting Holes | 4 holes |
| Bore Size | 1-3/16 Inch (30.16mm / 30.163mm) | Packaging Details | Neutral Package or as customers’ request |
| Net Weight | 1.089～1.11 kg | Model Number | NKR NPR 4HF1 4BE1 |
| Brand Name | YIMI | Place of Origin | CHINA |
| High Light | 1-3/16 Inch Bore Front Brake Wheel Cylinder ，High-Strength Cast Iron Brake Wheel Cylinder ，12 MPa Pressure Rating Hydraulic Brake Wheel Cylinder Assembly | ||
ISUZU Front Brake Wheel Cylinder with OEM numbers 8-97139818-0 / 8971398180 is a precision-engineered replacement designed for ISUZU NKR and NPR series light-duty trucks, compatible with 4HF1 diesel engines. This component serves as the core actuation element of the vehicle's hydraulic braking system — the Front Right Brake Wheel Cylinder Assembly — responsible for converting hydraulic pressure from the master cylinder into mechanical force to push the brake shoes against the brake drum.
The brake wheel cylinder is a critical actuation component of the hydraulic braking system, mounted on the brake backing plate and connected to the master cylinder via brake fluid lines.
| Symptom | Probable Cause |
|---|---|
| Reduced braking performance; increased stopping distance | Worn internal seals; hydraulic leakage; insufficient braking force |
| Vehicle pulls to one side during braking | Single-side cylinder malfunction; uneven braking force |
| Brake drag; vehicle still feels braked after pedal release | Stuck piston; cylinder fails to return |
| Visible brake fluid leakage at the wheel cylinder area | Worn/damaged cylinder seals |
| Soft or spongy brake pedal; increased pedal travel | Internal leakage or air in hydraulic system |
| Part Number: | 8971398180 8-97139818-0 |
| Product Name: | Brake Wheel Cylinder |
| Car Model: | ISUZU NKR NPR |
| Engine Model: | 4HF1 4BE1 |
| Condition: | 100% Brand New |
| Origin: | China Mainland |
| Brand | Model | Compatible Engine | Years |
|---|---|---|---|
| ISUZU | NKR | 4HF1 | 1992–2001 |
| ISUZU | NPR | 4HF1 | 1992–2001 |
| ISUZU | ELF | 4HF1, 4BE1 | 1992–2001 |
| Feature | Benefit + Verifiion Signal |
|---|---|
| 1-3/16 Inch Precision Bore (30.16mm) | Provides adequate hydraulic thrust for responsive, reliable braking — industry-verified standard specifiion for NKR/NPR/4HF1 models. |
| High-Strength Cast Iron Construction | Excellent corrosion resistance and mechanical strength for long-term reliable operation under high-pressure, high-frequency braking conditions. |
| 12 MPa (1,740 PSI) Pressure Rating | Ensures stable, reliable braking force output under high-load braking conditions — industry-verified. |
| Complete Service Design | Equipped with bleeder screw — facilitates brake system bleeding and maintenance. |
| ISO/TS16949 Quality Management Certified | Internationally recognized automotive industry quality standard — ensures full-process quality control. |
| 100% Factory Quality Inspection | Every piece undergoes strict quality inspection — ensures zero-defect delivery. |
| 1 Year / 30,000 km Warranty | Reliable after-sales protection — 1 year or 30,000 km quality guarantee. |
| Broad OEM Cross-Compatibility | Replaces multiple OEM and aftermarket numbers — simplifies sourcing for repair shops. |
| QC Item | Inspection Method | Acceptance Criterion |
|---|---|---|
| Cylinder bore size | Bore gauge / CMM | 1-3/16 inch (30.16mm) ± tolerance |
| Piston-to-bore clearance | Special gauges | Standard range |
| Seal integrity | Visual + dimensional inspection | No damage, no deformation |
| Hydraulic seal test | Pressure test bench | 12 MPa no leakage; stable pressure retention |
| Material composition | Spectrometer | Per cast iron standard |
| Surface anti-corrosion | Salt spray test (ISO 9227) | Per anti-corrosion standard |
| Item | Interval | Notes |
|---|---|---|
| Brake fluid inspection | Every 10,000 km / each service | Check fluid level and color |
| Wheel cylinder & line leak check | Every 20,000 km | Check for brake fluid seepage |
| Brake fluid replacement | Every 2 years / 40,000 km | Brake fluid absorbs moisture |
| Wheel cylinder inspection | Upon symptom occurrence | Inspect/repair/replace if leakage or sticking detected |
| Packaging: | Neutral packaging or customized per customer request |
| Quantity per package: | 1 pc/box (standard shipment packaging) |
| Product Net Weight: | 1.089～1.11 kg |
| Brand: | IZUMI / KOMP / OEM Standard |
| Place of Origin: | China |
| Minimum Order Quantity: | 1 piece |
| Delivery Time: | 5–8 working days |
| Supply Capacity: | 1000 pieces/month |
| Warranty: | 1 year / 30,000 km |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Trading Company,Seller
Year Established:
2005
Total Annual:
8000000-10000000
Employee Number:
100~150
Ecer Certification：
Verified Supplier
Yimi (Guangzhou) Automotive Parts Co., Ltd. Located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality ... Yimi (Guangzhou) Automotive Parts Co., Ltd. Located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality ...
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