Model No: 7DCT450
7DCT450 – China‘s First 7-Speed Wet Dual-Clutch Transmission
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7DCT450 – China‘s First 7-Speed Wet Dual-Clutch Transmission
Industry-Leading Transmission Technology for High-Torque Applications
The 7DCT450 represents a milestone in automotive drivetrain engineering – it is China‘s first 7-speed wet dual-clutch automatic transmission developed and produced domestically. With over 2 million units already in market operation, this transmission has proven its reliability, efficiency, and performance across hundreds of thousands of vehicles.
As a trusted transmission supplier with comprehensive supply chain management capabilities, SC-industry offers the 7DCT450 as a genuine original-equipment solution for vehicle manufacturers seeking a premium automatic transmission for medium-to-high torque applications.
Why the 7DCT450 Stands Out
Market-Proven Excellence
With nearly 2 million transmissions produced and sold, the 7DCT450 has established an exceptional track record in the Chinese automotive market. This extensive real-world validation ensures that when you source this automatic transmission through SC-industry, you are procuring a component with demonstrated durability and customer acceptance. Our supply chain management ensures consistent availability and authentic product sourcing.
Industry-Leading Torque-to-Weight Ratio
The 7DCT450 delivers outstanding power density through its optimized torque-to-weight ratio, making it an ideal automatic transmission for vehicles requiring robust performance without unnecessary mass penalty. The transmission achieves this through advanced materials engineering and compact packaging.
First in China – Low-Viscosity, High-Efficiency Lubrication
As China‘s first transmission to adopt low-viscosity, high-efficiency lubricating oil, the 7DCT450 sets new benchmarks for powertrain efficiency. This specialized lubricant reduces internal friction, improves fuel economy, and enhances cold-start performance – critical advantages for modern vehicle programmes.
SC-industry, as a premier transmission supplier, ensures that every 7DCT450 unit delivered through our supply chain management channels is filled with the correct specification lubricant for optimal performance.
Intelligent, Efficient, Dynamic Response
The 7DCT450 features an advanced electro-hydraulic actuation system that delivers rapid, precise gear changes. The wet dual-clutch design ensures smooth engagement, while the intelligent control strategy adapts to driving conditions for optimal shift scheduling. This makes the 7DCT450 a versatile automatic transmission suitable for passenger cars, SUVs, and light commercial vehicles.
Detailed Technical Specifications
Parameter | Specification |
|---|---|
Torque Capacity | 300–450 N·m |
Gears | 7 forward + Reverse |
Speed Ratio Range | 6.9 |
Dimensions (L×W×H) | 389 × 643 × 431 mm |
Weight | 81.5 kg |
Dual Clutch Module (DCM) | Wet multi-disc |
Actuation System | Electro-hydraulic control |
Parking Mechanism | Mechanical / Electronic parking |
Hybrid System Support | BSG / P2 / e-AD |
Design Lifetime | 10 years or 300,000 km |
Core Technical Advantages
1. Wet Dual-Clutch Module for Superior Durability
The wet dual-clutch design employs multi-disc clutches operating in an oil bath, providing exceptional heat dissipation and wear resistance. This architecture makes the 7DCT450 a particularly robust automatic transmission for high-torque engines and demanding duty cycles. The wet clutch system enables smooth launches, consistent performance across temperature extremes, and extended service life.
2. Electro-Hydraulic Actuation for Precision Shifts
The 7DCT450 utilizes an advanced electro-hydraulic actuation system that delivers rapid, precise control of clutch engagement and gear selection. This system enables shift times measured in milliseconds, providing the responsiveness that drivers expect from a premium automatic transmission. The electro-hydraulic design also facilitates integration with hybrid systems – including BSG, P2, and e-AD architectures – making the 7DCT450 a future-ready automatic transmission for electrified vehicle programmes.
3. Flexible Hybrid Support
The 7DCT450 supports multiple hybrid vehicle architectures:
- BSG (Belt-Start Generator) – Mild hybrid integration
- P2 hybrid – Motor positioned between engine and transmission
- e-AD (Electric Axle Drive) – Supporting through-the-road hybrid configurations
This flexibility positions the 7DCT450 as a versatile automatic transmission that can accommodate various electrification strategies without requiring fundamental redesign.
4. Comprehensive Parking Options
The transmission offers both mechanical and electronic parking mechanisms, providing vehicle manufacturers with flexibility in system integration. The electronic parking option enables advanced features such as automatic park engagement and integration with vehicle electronic parking brake systems.
Application and Market Penetration
The 7DCT450 has been adopted by prominent Chinese vehicle manufacturers as a preferred automatic transmission for their premium vehicle lines. Its 300–450 N·m torque capacity makes it suitable for a wide range of powertrains, from high-efficiency turbocharged petrol engines to high-torque diesel applications.
Proven in Production
With over 2 million units in market operation, the 7DCT450 has accumulated billions of kilometres of real-world validation. This extensive production history provides vehicle manufacturers with confidence in the transmission's reliability, shift quality, and durability.
SC-industry, through our established supply chain management, can source and supply this proven automatic transmissionwith full traceability and quality documentation.
Why Source the 7DCT450 Through SC-industry?
Genuine Original-Equipment Supply
SC-industry is a specialist transmission supplier with deep expertise in automotive powertrain components. We provide genuine 7DCT450 transmissions sourced directly from authorized channels. Our commitment to supply chain management ensures that every unit we deliver is authentic, properly documented, and traceable to its original production batch.
Supply Chain Management Excellence
Our comprehensive supply chain management capabilities encompass:
- Authentic product sourcing – Direct access to original production streams
- Inventory management – Strategic stockholding for predictable delivery
- Quality documentation – Full traceability and certification
- Logistics optimization – Efficient transportation and customs clearance
- Technical support – Application engineering guidance
Quality Assurance
SC-industry maintains rigorous quality standards throughout our supply chain managementprocesses. Every 7DCT450 automatic transmission we supply undergoes documentation verification and condition inspection to confirm its authentic origin and proper specification.
Competitive Pricing Through Supply Chain Efficiency
Our specialized supply chain management approach enables us to offer competitive pricing while maintaining uncompromising quality. By optimizing our transmission supplier network and logistics operations, we deliver value to vehicle manufacturers worldwide.
Specifications Summary Table
Attribute | Detail |
|---|---|
Transmission Type | 7-speed wet dual-clutch automatic |
Torque Capacity | 300–450 N·m |
Gear Count | 7 forward + Reverse |
Speed Ratio Range | 6.9 |
Weight | 81.5 kg |
Dimensions | 389 × 643 × 431 mm |
Clutch Type | Wet multi-disc |
Actuation | Electro-hydraulic |
Hybrid Support | BSG / P2 / e-AD |
Production Volume | > 2,000,000 units |
Design Life | 10 years / 300,000 km |
Quality and Reliability
The 7DCT450 automatic transmission has earned its market reputation through:
- Over 2 million units produced and field-proven
- Industry-leading torque-to-weight ratio for its class
- First-in-China low-viscosity lubrication technology
- Comprehensive testing across extreme temperature and load conditions
- Recognition from leading Chinese vehicle manufacturers
Why the 7DCT450 is the Right Choice
For vehicle manufacturers seeking a proven, high-performance automatic transmission, the 7DCT450 offers:
- Proven durability – 2 million units in market operation
- High torque capacity – Up to 450 N·m
- Efficiency leadership – Low-viscosity lubricant technology
- Hybrid readiness – Supports multiple electrification architectures
- Compact packaging – 81.5 kg weight with competitive dimensions
- Production maturity – Years of manufacturing refinement
SC-industry, as your dedicated transmission supplier, brings this proven technology to your programme with the supply chain management capabilities that ensure reliable, cost-effective delivery.
Contact SC-industry Today
SC-industry is your trusted partner for automotive powertrain components. With our specialized supply chain management and deep industry relationships, we provide vehicle manufacturers and system integrators with authentic, high-quality components backed by professional service.
Why partner with SC-industry:
- ✅ Authentic original-equipment automatic transmissions
- ✅ Comprehensive supply chain management for reliable delivery
- ✅ Technical support and application guidance
- ✅ Full traceability and quality documentation
- ✅ Competitive pricing through supply chain optimization
Contact our team today to discuss your transmission requirements. Whether you are developing a new vehicle programme or seeking a reliable transmission supplier for ongoing production, SC-industry is ready to support your needs with the 7DCT450 – China‘s proven 7-speed wet dual-clutch automatic transmission.
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