• No Forward
  • No Reverse
  • Gear ratio codes


Narrow OE valve stem at linkage is prone to stress-related breakage.


Replace broken or suspect OE valve with improved-strength, drop-in Sonnax manual valve assembly.


Manual Valve Assembly
Part No. 104740-24K

Fits BMW units only.

You need this if... View Instructions Find a Distributor

Some BMW vehicles with 6L45 transmissions may exhibit no engagement when shifted into Forward or Reverse. Under these circumstances, it is common that the manual valve has broken into two pieces forcing the car into the Neutral position. Sonnax standard-sized manual valve assembly 104740-24K addresses this problem with additional improvements.

  • Hardcoat anodized aluminum valve and link combat premature wear and breakage
  • Increased stem diameter for added strength to prevent breakage
  • Increased spool lengths for increased stability and leakage prevention
  • Drop-in Zip Valve™ part installs quickly and easily
Learn More About Zip Valve™ Drop-In Repairs

The shape of the Sonnax manual valve linkage is substantially different than the OE version but functions identically.

Sonnax valve body layouts provide a detailed overview of individual units making it quick and easy to determine what’s available for the specific valve body you’re working on. See all Sonnax valve body layouts.

GM 6L45, 6L50, 6L80, 6L90 Valve Body Layout

GM 6L45, 6L50, 6L80, 6L90 Valve Body Layout
  • 6L45 Manual Valve Assembly 104740-24K
  • 6L45 Manual Valve Assembly 104740-24K

You need this if...

OE manual valve has broken