WG221004000006 (040115) 2nd gear is a core transmission component in heavy-duty truck gearboxes, specifically responsible for power transmission and conversion in second gear. It ensures smooth shifting, stable driving, and reliable performance under various complex road conditions.
This gear is precisely engineered to solve common gearbox issues such as gear sticking, abnormal noise, gear jumping, and inefficient power transmission, making it an essential component for heavy truck transmission systems.
Key Features
High Strength Material
Made from premium alloy structural steel through precision forging, offering excellent toughness and strength to withstand high torque loads in second gear operation.
Advanced Heat Treatment
Carburizing and quenching process ensures:
- Uniform surface hardness
- Enhanced wear resistance
- Superior fatigue strength
Precision Gear Machining
Processed with gear grinding and polishing for:
- High tooth profile accuracy
- Smooth surface finish
- Stable and seamless meshing
Stable & Smooth Operation
Optimized design reduces:
- Transmission loss
- Noise and vibration
- Gear sticking and impact
Core Functions
- Efficient power transmission in second gear
- Smooth and stable gear shifting
- Reliable operation under heavy-load conditions
- Strong compatibility with multiple gearbox systems
Product Advantages
- High durability, resistant to tooth breakage and deformation
- Perfect meshing with input shaft, countershaft, and synchronizer
- Reduced wear, no abnormal noise or gear jumping
- Cost-effective solution for gearbox repair and replacement
- Stable supply for bulk orders and export
Technical Specifications
- Product Name: 2nd Gear
- Model: WG221004000006 (040115)
- Application: Heavy Truck Gearbox
- Material: Alloy Structural Steel
- Process: Precision Forging + Carburizing & Quenching
- Surface Treatment: Gear Grinding & Polishing
Application Scenarios
- Heavy truck gearbox repair and maintenance
- Transmission assembly replacement
- Auto parts distributors and wholesalers
- International export and OEM supply
Supply & Service
- Ready stock for fast delivery
- Support bulk purchase and OEM customization
- Professional export packaging
- Technical support and after-sales service
WG221004000006 (040115) 2nd gear is a reliable and durable solution for heavy truck gearbox systems. With precision engineering, high-strength materials, and stable performance, it ensures smooth second gear operation, reduces maintenance costs, and improves vehicle uptime.






