Yimi (Guangzhou) Automotive Parts Co, Ltd
| Surface Finish | E-coat / Black |
| Delivery Time | 5-8 Work Days |
| Ball Joint Type | Ball stud at both ends |
| Tensile Strength | ≥800MPa |
| Material | High-strength forged alloy steel (Ball stud: bearing steel) |
| Payment Terms | T/T |
| Ball Joint Hardness | HRC58–62 |
| Supply Ability | 10000 pcs/month |
| Static Load Capacity | ≥50kN |
| Overall Length | Approx. 720mm (C-to-C approx. 718mm / 28.3") |
| Net Weight | 4.8–5.15kg |
| Packaging Details | Neutral Package or as customers’ request |
| Model Number | NPR 4HF1 |
| Certification | ISO/TS16949 |
| Brand Name | YIMI |
| Place of Origin | CHINA |
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Product Specification
| Surface Finish | E-coat / Black | Delivery Time | 5-8 Work Days |
| Ball Joint Type | Ball stud at both ends | Tensile Strength | ≥800MPa |
| Material | High-strength forged alloy steel (Ball stud: bearing steel) | Payment Terms | T/T |
| Ball Joint Hardness | HRC58–62 | Supply Ability | 10000 pcs/month |
| Static Load Capacity | ≥50kN | Overall Length | Approx. 720mm (C-to-C approx. 718mm / 28.3") |
| Net Weight | 4.8–5.15kg | Packaging Details | Neutral Package or as customers’ request |
| Model Number | NPR 4HF1 | Certification | ISO/TS16949 |
| Brand Name | YIMI | Place of Origin | CHINA |
| High Light | High-strength forged alloy steel Drag Link ，E-coat surface finish Steering Link ，Direct OEM replacement Steering Drag Link | ||
Steering Drag Link with OEM numbers 8971701580 / 8-97170158-0 is a verified direct-fit replacement for ISUZU NPR series trucks equipped with the 4HF1 engine. This critical steering linkage component transfers movement from the steering gearbox to the steering knuckle arm, enabling wheel turning.
When the steering wheel turns, the steering gearbox converts rotational motion into linear motion. The drag link transmits this force to the steering knuckle arm, which pivots the front wheels. Ball joints at both ends allow flexible force transfer at various angles while absorbing road shocks and vibrations.
| Brand | Model | Chassis | Engine | Notes |
|---|---|---|---|---|
| ISUZU | NPR | NPR66 | 4HF1 | Primary fitment |
| ISUZU | NPR | NPR | 4HF1 | Standard fitment |
| ISUZU | NPR | NPR94 | 4HF1 / 4HG1 | |
| ISUZU | NQR | NQR66 | 4HF1 | |
| ISUZU | NPR | — | 4HG1 |
| Feature | Benefit + Verification Signal |
|---|---|
| High-Strength Forged Alloy Steel | Withstands heavy-duty steering loads and road vibrations — tensile strength ≥800MPa (ASTM A370 tensile test certified); 1,000,000-cycle test with no fracture |
| Precision-Machined Ball Joints | Ensures precise, responsive steering with zero play — ball joint hardness HRC58–62, play ≤0.5mm; 200-hour wear test with wear <0.1mm |
| 100% Static Load Tested | Every drag link undergoes 50kN static load test — no deformation, no fracture (ISO 1628) |
| 480-Hour Salt Spray Corrosion Protection | E-coat provides excellent rust resistance for harsh environments — 480-hour salt spray test, no red rust (ASTM B117) |
| Direct OE Fit Replacement | No modification needed for quick installation — 98.5% bolt-on fitment rate confirmed across 112 repair orders |
| 12-Month Warranty | Peace of mind on manufacturing defects — free replacement within warranty period |
| QC Item | Verification Method | Standard |
|---|---|---|
| Material Composition | Spectrographic analysis | Meets alloy steel grade standard |
| Tensile Strength | Universal testing machine | ≥800MPa (ASTM A370) |
| Hardness Test | Rockwell hardness tester | HRC58–62 (ball stud) |
| Static Load Test | Compression testing machine | ≥50kN no deformation (ISO 1628) |
| Ball Joint Play | Special gauge | Play ≤0.5mm |
| Durability Test | Bench cycle test | 1,000,000 bidirectional cycles no failure |
| Salt Spray Corrosion Test | Salt spray chamber | 480 hours no red rust (ASTM B117) |
| Dimensional Accuracy | CMM coordinate measuring machine | Meets OEM standard dimensions |
| Visual Inspection | 100% visual inspection | No cracks, burrs, or surface defects |
The drag link is a critical steering safety component. Failure may result in loss of steering control, increasing the risk of a crash. Installation should be performed by qualified professionals. Always perform wheel alignment and a road test after installation.
| Item | Interval |
|---|---|
| Steering System Inspection | Every 10,000 km or 6 months |
| Ball Joint Play Inspection | Every 20,000 km |
| Drag Link Replacement | When play is detected, boot is damaged, or at 150,000–200,000 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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