SONNAX 73840-MK Master Clutch Control & Pressure Regulator Valve Kit CD4E Featured Products 2nd roller failure

2nd roller failure

Sonnax heavy duty input shaft 34670-01 is manufactured from high strength 300M with proprietary heat treatment and post-heat treat processing for exceptional performance

harsh shifts and reduced cooler/converter flow

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NEW from OEM BorgWarner

SONNAX 73840-MK Master Clutch Control & Pressure Regulator Valve Kit CD4E Featured Products 2nd roller failureManufacturer Part Number: 73840 MK Brand: Sonnax CD4E, LA4A EL Master Kit Part No. 73840 MK Tooling: 73840 BTL F 73840 TL The CD4E transmission frequently exhibits such symptoms as lube failure, harsh shifts and line pressure instability as well as a variety of TCC Lockup issues. Sonnax master kit 73840 MK contains both the Regulator Kit 73840 RK and the Bypass Kit 73840 BK to address issues in both areas. See the individual kits for more detail. Both