SACHS 6366 000 021 Engine Blocks

SACHS 6366 000 021 Dual‑Mass Flywheel

The SACHS 6366 000 021 is a precision‑engineered dual‑mass flywheel (DMF) designed to deliver smooth power delivery, reduced vibration, and enhanced drivetrain longevity for a wide range of Ford vehicles. Its advanced construction incorporates high‑strength steel alloys, an optimized mass distribution, and a sophisticated damping system that works in harmony with the vehicle’s dual‑clutch transmission.

Key Functional Characteristics

• Dual‑Mass Design: The flywheel is split into two concentric masses separated by an elastomeric bearing. This configuration absorbs torsional vibrations and eliminates the need for a traditional engine mount.
• High‑Tensile Steel Core: A proprietary steel blend provides exceptional strength while maintaining lightweight performance, ensuring reliable operation under high torque loads.
• Optimized Mass Distribution: The mass is strategically positioned to balance rotational inertia and minimize resonant frequencies, resulting in smoother acceleration and reduced noise.
• Integrated Damping System: Elastomeric layers between the masses absorb shock impulses, protecting the transmission from sudden torque spikes and extending component life.
• Compatibility with Dual‑Clutch Transmissions: Engineered to interface seamlessly with Ford’s dual‑clutch gearboxes (e.g., 6‑speed DSG), providing precise engagement timing and improved shift quality.

Installation Scope

The SACHS 6366 000 021 is specifically calibrated for a range of Ford models, including:

• Ford Focus III (2010‑2017)
• Ford C‑Max II
• Ford Kuga II
• Ford Tourneo 1.5 TDCi
• Ford Transit Connect
• Ford Escape II (DM2) 2012‑present

Each installation requires a matching flywheel bolt pattern and torque specifications that align with the vehicle’s engine management system. The DMF replaces the standard single‑mass flywheel, providing immediate benefits in ride quality and drivetrain durability.

Performance Benefits

• Smoother Power Delivery: By dampening torsional vibrations, the dual‑mass flywheel ensures that engine torque is transmitted to the transmission in a controlled manner, reducing harshness during acceleration.
• Reduced Engine Noise: The elastomeric interface absorbs high‑frequency oscillations, resulting in quieter cabin conditions and lower NVH (Noise, Vibration, Harshness) levels.
• Enhanced Transmission Longevity: Lower torque spikes mean less wear on clutch plates, gear teeth, and bearing assemblies, extending the service life of the drivetrain.
• Improved Fuel Efficiency: Smoother torque transfer allows the engine to operate more efficiently across a broader range of speeds, contributing to better fuel economy.

Material Composition & Manufacturing Excellence

The flywheel’s core is forged from a high‑grade steel alloy that balances density and tensile strength. The outer shell incorporates a precision machining process that guarantees dimensional accuracy within ±0.01 mm, ensuring perfect alignment with the engine crankshaft and transmission input shaft.

During assembly, each component undergoes rigorous quality checks:

• Dimensional Verification: Laser scanning confirms adherence to OEM specifications.
• Torsional Rigidity Testing: Dynamic testing measures the flywheel’s ability to withstand torque fluctuations.
• Surface Finish Inspection: Ensures optimal contact with the clutch and transmission components, minimizing wear.

Maintenance & Longevity Considerations

The dual‑mass flywheel is designed for long service intervals. However, certain conditions can accelerate wear:

• High Engine Loads: Frequent high‑torque driving (e.g., towing or aggressive acceleration) may increase elastomeric fatigue.
• Extreme Temperature Variations: Operating in very hot or cold climates can affect the elastomer’s performance, potentially leading to premature failure.
• Improper Installation: Incorrect torque settings or misalignment during installation can cause uneven wear and reduce lifespan.

Regular inspection of the flywheel’s mounting bolts and a check for any unusual vibrations during operation are recommended. If symptoms such as rattling, excessive noise, or delayed acceleration appear, professional diagnostic evaluation is advised.

Technical Specifications Summary

Conclusion

The SACHS 6366 000 021 Dual‑Mass Flywheel exemplifies engineering precision and performance reliability. By integrating advanced materials, meticulous manufacturing processes, and a design that harmonizes with Ford’s dual‑clutch transmissions, it delivers smoother power delivery, reduced vibration, and extended drivetrain life. Whether you’re restoring a classic Focus or upgrading a modern C‑Max, this flywheel provides the foundation for a refined driving experience.