| Description | Flywheel For Cummins 6B5.9 / B5.9, B4.5 / B6.7, ISB 5.9 / ISB 6.7, ISC / C8.3 |
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| Condition | New |
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| Brand | Cummins® |
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| Part Number | 4933488 |
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Fits For
- Cummins 6B5.9 / B5.9
- B4.5 / B6.7
- ISB 5.9 / ISB 6.7
- ISC / C8.3
- Various QSB engines
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A flywheel is a large, heavy metal disc that is connected to the engine’s crankshaft. Its main purpose is to store and maintain rotational energy, helping the engine run smoothly and consistently.
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Stores rotational energy to keep the engine turning smoothly.
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Reduces engine vibrations and helps maintain consistent engine speed.
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Transfers engine power to the transmission through the clutch.
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Helps start the engine because the starter motor turns the flywheel.
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Provides a mounting surface for the clutch in manual-transmission vehicles.
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Signs of Faulty
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Vibrations or shaking when the engine is running, especially when releasing the clutch.
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Clutch slipping — the engine RPM rises, but the vehicle doesn't accelerate normally.
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Grinding or unusual noises when starting or stopping the engine.
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Difficulty shifting gears, especially in a manual transmission.
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Clutch chatter — the vehicle shakes or jerks when taking off.
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Hard starting if the flywheel’s starter-ring gear is damaged.
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Burning smell from excessive clutch slipping.
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Visible cracks, hot spots, or uneven surfaces if the flywheel is inspected.
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Cummins® is an American corporation founded in 1919, specializing in engines, generators, and related technologies for automobiles, ships, and construction. Renowned for its innovations in diesel engines and hybrid technologies, Cummins is actively involved in developing alternative energy sources like electricity and hydrogen. With global leadership in engines and power devices for industries like trucks, agriculture, and construction, Cummins operates worldwide through a vast network of distributors and dealers across nearly 190 countries, guided by core values of integrity, diversity, excellence, caring, and teamwork.
