sonnax-black Facebook-color LinkedIn-color maillink printlink r_and_r_only SERVOFIX-logo-web Twitter-color VBFIX-logo-web video-logo-web warranty_only Youtube-color


  • Forward clutch failure
  • Low base line pressure
  • Delayed Forward


Low line pressure


Raise line pressure and increase holding power by installing Sonnax elevated pressure regulator valve kit.

4R70E, 4R70W, 4R75E, 4R75W, AODE

Elevated Pressure Regulator Valve Kit
Part No. 76948-12K

Fits '96-Later units only.

View Instructions

Ford vehicles equipped with 4R70E, 4R70W, 4R75E, 4R75W and AODE units may have delayed engagements and burnt forward clutches due to low line pressure. This can be even more pronounced in heavy-duty or performance vehicles. Sonnax elevated pressure regulator valve kit 76948-12K provides a modified valve and stronger spring to raise base line pressure, eliminating these concerns.

  • Hardcoat anodized aluminum valve combats premature wear
  • Annular grooves help center valve in bore to reduce side-loading

Sonnax valve replaces both styles of OE valve found in '96-later units.

  • Spring
  • Valve
  • 76948 12k combo
  • 76948 12k
  • 76948 02k compare