The Flywheel / C55 BS4 (146 Teeth, 37 Holes) is a precision-balanced rotating component engineered to ensure smooth power transmission between the engine and clutch system. It stabilizes engine speed, reduces vibration, and provides a high-strength mounting surface for the clutch assembly.
Manufactured from grade C55 alloy steel, this flywheel offers exceptional strength, heat resistance, and rotational stability. Its 146 precisely machined ring gear teeth ensure reliable starter motor engagement, while the 37-hole configuration provides accurate mounting and alignment with the engine crankshaft and clutch components.
Designed for heavy-duty BS4-compliant commercial vehicles, the Flywheel delivers consistent performance under high torque, continuous load cycles, and demanding driving conditions. Its durability contributes to longer clutch life, improved drivability, and reduced maintenance.
| GROUP | MODEL | REF. PART NUMBER | SPECIFICATIONS |
|---|---|---|---|
| 20.021 | 3128, 2523, 2528 | A4000300505 | Flywheel – C55 BS4, 146 Teeth, 37 Holes, heavy-duty steel |
It stabilizes engine rotation and provides a mounting surface for the clutch assembly.
The teeth engage with the starter motor for smooth and reliable engine starting.