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Win this M240i!
Every $50 spent = 1 entry*

No purchase necessary to enter or win. See official rules.


Complete Single Mass Flywheel Conversion Kit

Includes a single mass conversion clutch kit, guide tube, seals and transmission service kit
Mfg Part #
52401225KT
ECS Part #
ES#4070501
Brand
Assembled By ECS
611.56
$643.75 (Sale - Save 5%)
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on orders $49 and up
Availability: Inventory On Order, ETA Oct 4, 2021
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Product Details

Dual mass flywheels allow for fluid-feeling clutch engagements and offer a more luxurious feel than single-mass flywheels. However, with these benefits come significant drawbacks. Why convert from a dual-mass flywheel to a single-mass flywheel?

  • Cost: Dual-mass flywheels are expensive, with the cost of replacement often times is double or triple than that of converting to a single-mass flywheel.
  • Serviceability: Single-mass flywheels can be resurfaced, eliminating the need to replace with the next clutch service. - something that is not recommended with dual-mass flywheels, as they contain a rubber section that is more failure-prone in high mileage application.
  • Simplicity: Single-mass flywheels lack the complexity of dual-mass flywheels, making them inherently more reliable. Dual-mass flywheels contain a rubber damper or hub that will, like all rubber components, wear out with time.
  • Pedal Feel: Many enthusiasts prefer to eliminate BMW's "Self Adjusting Clutch", which has been known to provide an unpredictable, inconsistent engagement point.
  • Driveability: Valeo's conversion kit has been designed to maintain nearly identical clutch and flywheel weight, ideal for keeping the clutch quiet and easy to drive.

Kit contents:

  • Single-mass flywheel
  • Non-Self Adjusting Clutch and pressure plate
  • Throw out bearing
  • Pressure plate bolts
  • Flywheel bolts
  • Transmission service kit
  • Guide tube 
  • Input and output shaft seals 
  • Pilot bearing 
  • Clutch fork pivot pin 

This Part Fits the Following Vehicles

Make Model Submodel Engine
BMW E39 525i M54 2.5L
BMW E46 323Ci M52 2.5L
BMW E46 323i M52 2.5L
BMW Z3 2.3 M52 2.5L
BMW Z3 2.5 M52 2.5L
BMW Z3 2.5i M54 2.5L
*The above product applications have been written by ECS Tuning. All warranties, product application, fitment, and performance are the responsibility of ECS Tuning. For additional information see the terms of use.

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