Yimi (Guangzhou) Automotive Parts Co, Ltd
| Net Weight | 1.09～1.25 kg |
| Delivery Time | 5-8 Work Days |
| Installation Position | Front Left (LH) |
| Material | High-Strength Metal |
| Certifiion | ISO/TS16949 |
| Bore Size | 1-3/16 Inch (30.16mm) |
| Payment Terms | T/T |
| Part Type | Hydraulic Brake Wheel Cylinder Assembly |
| Brake Type | Drum Brake |
| Supply Ability | 10000 pcs/month |
| Piston-to-bore clearance | Standard range |
| Packaging Details | Neutral Package or as customers’ request |
| Gear Teeth | 16 teeth |
| Model Number | NPR 4HF1 |
| Place of Origin | CHINA |
| Brand Name | YIMI |
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Product Specification
| Net Weight | 1.09～1.25 kg | Delivery Time | 5-8 Work Days |
| Installation Position | Front Left (LH) | Material | High-Strength Metal |
| Certifiion | ISO/TS16949 | Bore Size | 1-3/16 Inch (30.16mm) |
| Payment Terms | T/T | Part Type | Hydraulic Brake Wheel Cylinder Assembly |
| Brake Type | Drum Brake | Supply Ability | 10000 pcs/month |
| Piston-to-bore clearance | Standard range | Packaging Details | Neutral Package or as customers’ request |
| Gear Teeth | 16 teeth | Model Number | NPR 4HF1 |
| Place of Origin | CHINA | Brand Name | YIMI |
| High Light | 1-3/16 Inch Bore Front Brake Wheel Cylinder ，High-Strength Metal Construction Hydraulic Brake Wheel Cylinder Assembly ，OEM Standard Replacement Brake Wheel Cylinder | ||
The ISUZU Front Brake Wheel Cylinder with OEM numbers 8-97139821-0 / 8971398210 is a precision-engineered replacement designed for ISUZU NPR series trucks, compatible with 4HF1 diesel engines. This component is a core actuation element of the vehicle's hydraulic braking system — the Front Left 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 |
| Brand | Model | Compatible Engine |
|---|---|---|
| ISUZU | NPR | 4HF1 |
| ISUZU | NKR | 4HF1, 4JJ1 |
| ISUZU | NQR | 4HF1 |
| ISUZU | NLR / NMR | 4HF1, 4JJ1 |
| ISUZU | NNR | 4HF1 |
| ISUZU | ELF | 4HF1 |
Provides adequate hydraulic thrust for responsive, reliable braking — industry-verified standard specifiion for NPR/4HF1 models.
Enables precise brake shoe clearance adjustment — ensures brake clearance stays within specifiion.
Excellent corrosion resistance and mechanical strength for long-term reliable operation under high-pressure, high-frequency braking conditions.
Effectively prevents brake fluid leakage and contamination — extends brake system service life.
Equipped with bleeder screw and gear-style adjuster — facilitates brake system bleeding and shoe clearance adjustment.
Manufactured to ISUZU original specifiions — no modifiions needed for quick, hassle-free installation.
| Item | Detail |
|---|---|
| Packaging | Neutral packaging or customized per customer request |
| Quantity per package | 1 pc/box (standard shipment packaging) |
| Product Net Weight | 1.09～1.25 kg |
| Brand | IZUMI / OEM Standard |
| Place of Origin | China |
| Minimum Order Quantity | 1 piece |
| Delivery Time | 5-30 working days |
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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