AZ221004000009 reverse gear is a core transmission component in heavy-duty truck gearboxes, specifically designed for reverse power transmission and conversion. It ensures smooth reversing, precise control, and enhanced driving safety.
This gear effectively solves common issues such as gear sticking, abnormal noise, gear jumping, and poor power transmission, helping restore stable and reliable reverse operation.

Key Features
High Strength Material
Manufactured from premium alloy structural steel through precision forging, offering excellent toughness and strength to withstand sudden torque impact during reversing.
Advanced Heat Treatment
Carburizing and quenching process provides:
- Uniform surface hardness
- Superior wear resistance
- Enhanced fatigue strength
Precision Gear Machining
Gear teeth are finely ground and polished to ensure:
- High tooth profile accuracy
- Smooth surface finish
- Seamless meshing without sticking
Noise & Vibration Reduction
Optimized design minimizes:
- Abnormal noise during reversing
- Gear impact and vibration
- Transmission loss
Core Functions
Efficient Reverse Power Transmission
Delivers stable and efficient power during reversing, ensuring smooth and strong backward movement even under heavy-load conditions.
Stable & Reliable Operation
Prevents common failures such as:
- Gear sticking
- Gear jumping
- Tooth breakage
- Abnormal noise
Easy Installation
- Precise dimensions and accurate fit
- Simple and fast assembly
- Reduced labor time and maintenance cost
Product Advantages
- High durability for heavy-duty reversing conditions
- Resistant to deformation and tooth damage
- Smooth operation with improved driving comfort
- Reduced gearbox maintenance frequency
- Cost-effective and reliable solution
- Ready stock for fast delivery
Technical Specifications
- Product Name: Reverse Gear
- Model: AZ221004000009
- 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
- Reverse gear replacement
- Auto parts distributors and wholesalers
- Export and OEM supply
Supply & Service
- Sufficient inventory for quick shipment
- Support bulk orders and OEM customization
- Professional export packaging
- Technical support and after-sales service
AZ221004000009 reverse gear is a reliable and durable solution for heavy truck gearbox systems. With high-strength materials, precision machining, and stable performance, it ensures smooth and safe reversing, reduces maintenance costs, and improves vehicle uptime.


