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


  • Burnt clutches
  • Burnt TCC apply components
  • Harsh shifts
  • Soft shifts
  • Solenoid performance codes
  • TCC codes & concerns
  • Wrong gear starts


Pressure reducing valve bore wear causes erratic supply pressure to control solenoids.


Recover hydraulic control and renew shift performance by reconditioning the bore and installing Sonnax oversized pressure reducing valve.

A6GF1, A6LF1/2/3, A6MF1/2

Oversized Pressure Reducing Valve
Part No. 102741-07

Fits two locations.

You need this if... View Instructions

Listed Hyundai/Kia transmissions often suffer shift abnormalities caused by excess wear in the pressure reducing valve bores. This wear prevents proper regulation of oil pressure supplied to control solenoids, resulting in harsh or soft shifts, solenoid codes, wrong gear starts, TCC apply issues, and clutch failure. Reconditioning the bore and installing Sonnax oversized pressure reducing valve 102741-07 re-establishes the hydraulic integrity of this circuit, restoring normal shift operation and feel.

  • Hardcoat anodized aluminum valve combats premature wear
  • Annular groove helps center valve in bore to reduce future side-load wear

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.

Hyundai/Kia A6GF1, A6LF1/2/3, A6MF1/2 Valve Body Layout

Hyundai kia vbl thumb

September 30, 2005

Anatomy of a Transmission: Oil Flow in the Pump-PR-Converter-Cooler Lube Circuits

Gregg Nader

Topics: Diagnostics And Theory Transmission

Read Now
  • 102741 07 combo2
  • 102741 07 combo1
  • 102741 07

You need this if...

Vacuum testing at the port(s) indicated fails to hold the recommended minimum in-Hg, or if wear is visually detected.

  • 102741 07 in test1
  • 102741 07 in test2