Yimi (Guangzhou) Automotive Parts Co, Ltd
| Engine Fitment | 4HF1 / 4HG1 / 4HG1T |
| Payment Terms | T/T |
| Unit Weight | 0.23kg |
| Mounting Hole Precision | ±0.05mm |
| Delivery Time | 5-8 Work Days |
| Corrosion Protection | 240-hour salt spray test |
| Tensile Strength | ≥500MPa |
| Installation Position | Top of cylinder head — middle of rocker shaft |
| Supply Ability | 10000 pcs/month |
| Material | High-strength ductile cast iron |
| Packaging Details | Neutral Package or as customers’ request |
| Hardness | HB200–240 |
| Model Number | 4HF1 4HG1 |
| Certification | ISO/TS16949 |
| Brand Name | YIMI |
| Place of Origin | CHINA |
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Product Specification
| Engine Fitment | 4HF1 / 4HG1 / 4HG1T | Payment Terms | T/T |
| Unit Weight | 0.23kg | Mounting Hole Precision | ±0.05mm |
| Delivery Time | 5-8 Work Days | Corrosion Protection | 240-hour salt spray test |
| Tensile Strength | ≥500MPa | Installation Position | Top of cylinder head — middle of rocker shaft |
| Supply Ability | 10000 pcs/month | Material | High-strength ductile cast iron |
| Packaging Details | Neutral Package or as customers’ request | Hardness | HB200–240 |
| Model Number | 4HF1 4HG1 | Certification | ISO/TS16949 |
| Brand Name | YIMI | Place of Origin | CHINA |
| High Light | High-strength ductile cast iron Rocker Shaft Bracket ，Anti-rust coating Inter Rocker Shaft Bracket ，Direct OEM fit Engine Valve Train Bracket | ||
The Inter Rocker Shaft Bracket with OEM numbers 8971745660 / 8-97174566-0 and 8971745680 / 8-97174568-0 is a verified direct-fit replacement for ISUZU 4HF1 / 4HG1 series engines. This bracket is a critical component of the engine valve train system, responsible for securing and supporting the rocker shaft, ensuring precise positioning and stable movement of the valve rocker arms during high-speed operation.
In an overhead valve (OHV) engine, the camshaft drives the rocker arms through tappets and pushrods, which then open and close the valves. The rocker shaft brackets secure the rocker shaft firmly to the cylinder head, providing a stable pivot point for the rocker arms. The inter rocker shaft bracket is positioned at the middle of the rocker shaft, providing additional support to prevent shaft bending or vibration during high-speed operation, ensuring precise valve timing and smooth engine performance.
Replace immediately if any occur:
| Part Number: | 8971745660 8971745680 |
| Product Name: | Inter Rocker Shaft Bracket |
| Car Model: | 4HF1 4HG1 |
| Engine Model: | 4HF1 4HG1 |
| Condition: | 100% Brand New |
| Origin: | China Mainland |
| Main Market: | Middle East, Asia, Africa, South America, North America & Europe |
| Package: | Neutral Packing Or Make It As Requested |
| Material: | High-strength aluminum alloy & precision bearings |
| Cooling Type: | Engine coolant circulation |
| Installation: | Direct OEM replacement |
| Quality Standard: | OEM equivalent / ISO quality control |
| Brand | Model | Engine | Notes |
|---|---|---|---|
| ISUZU | NKR | 4HF1 / 4HG1 / 4HG1T | ELF series light truck |
| ISUZU | NPR | 4HF1 / 4HG1 / 4HG1T | ELF/NPR series |
| ISUZU | NQR | 4HF1 / 4HG1 / 4HG1T | ELF/NQR series |
| ISUZU | NLR | 4HF1 / 4HG1 / 4HG1T | ELF/NLR series |
| ISUZU | NKNPVK | 4HF1 / 4HG1T |
| Engine Model | Displacement | Description |
|---|---|---|
| 4HF1 | 4.3L | 4-cylinder diesel engine |
| 4HG1 | 4.3L | 4-cylinder diesel engine |
| 4HG1T | 4.3L | 4-cylinder turbo diesel engine |
Important:
| QC Item | Verification Method | Standard |
|---|---|---|
| Material Composition | Spectrographic analysis | Meets ductile cast iron standard (ISO 1083) |
| Tensile Strength | Universal testing machine | ≥500MPa |
| Hardness Test | Brinell hardness tester | HB200–240 |
| Critical Dimensions | CMM coordinate measuring machine | Mounting hole precision ±0.05mm |
| Surface Defect Inspection | 100% visual + magnetic particle inspection | No cracks, porosity, or blowholes |
| Salt Spray Corrosion Test | Salt spray chamber | 240 hours no red rust (ASTM B117) |
| Fitment Verification | Actual vehicle installation test | 100% fitment verified |
IMPORTANT: The rocker shaft bracket is a critical component of the engine valve train. Improper installation may cause valve timing misalignment, leading to piston-to-valve contact and severe engine damage. Installation should be performed by qualified engine specialists.
| Item | Interval |
|---|---|
| Valve Clearance Inspection | Every 20,000–40,000 km |
| Rocker Shaft Bracket Inspection | During engine overhaul or when abnormal noise is detected |
| Bracket Replacement | When cracks, deformation, or severe wear is found; or during engine overhaul |
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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