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


  • Gear ratio & solenoid codes
  • No shift
  • Various shift concerns


Bore wear prevents proper valve stroke and reduces critical clutch/brake feed/apply oil flow through the various relay/signal valves.


Restore proper clutch/brake feed and apply control by reaming bore to match the improved Sonnax oversized valve.

09G, 09K, 09M, 6F21WA, TF-60SN, TF-80SC, TF-81SC

Oversized Two-Spool Relay/Signal Valve Kit
Part No. 15741-49K

This kit can be used in any of nine locations in five different valve body applications.

You need this if... View Instructions

The listed Aisin AW 6-speed units each utilize two-spool valves as relay or signal valves. These valves are found in multiple circuits in all valve bodies across the AW6 family and are used to route critical clutch/brake feed and apply oil to the appropriate apply components. Various shift concerns can accompany ratio or solenoid codes when bore wear becomes a problem in this circuit. The oversized two-spool relay/signal valve kit 15741-49K restores proper clutch/brake feed and apply pressure to the related components by functioning in a refurbished bore that provides correct hydraulic clearances.

  • Fits any of nine locations in several Aisin AW 6-speed applications
  • Valve is hardcoat anodized to reduce wear
  • Annular grooves improve lubrication and valve centering
  • Valve
  • End Plug

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.

Aisin AW TF-80SC Valve Body Layout

Tf 80sc vbl thumb

Aisin AW TF-81SC Valve Body Layout

Tf 81sc vbl thumb

Aisin AW TF-60SN Valve Body Layout

Tf 60sn vbl thumb

October 16, 2014

Aisin AW TF-60SN, BMW 6F21WA, VW/Audi 09G, 09K, 09M Vacuum Test Guide

Topics: Vacuum Test Guides Vacuum Testing Transmission BMW VW/Audi Aisin AW 6F21WA Transmission 09G, 09K, 09M Transmission TF-60SN Transmission

Read Now

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
  • 15741 49k combo
  • 15741 49k
  • 15741 49k in chart
  • Tf 60sn middlevb
  • Tf 60sn uppervb
  • Tf 80sc mainaccumcasting
  • Tf 81sc middlevb
  • Tf 81sc rearcover

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.

  • 15741 49k in test