4T65E Transmission TCC Apply Valve Kit with Seal Sonnax 84754-43K
Continuous oscillation of the converter apply valve in the cast-aluminum bore causes bore wear, particularly at the TCC signal valve spool closest to the solenoid. Wear in this area allows TCC signal oil to leak, which inhibits the valve from stroking to the lockup position. Due to the valve body casting design and oil flow, this valve is also subject to extreme side loading, which increases the wear rate. Early OE versions of this valve were made from non-anodized aluminum, and show significant wear marks.
- Hardcoat anodized aluminum valve with an expandable PTFE seal on the TCC signal valve spool provides a positive seal to ensure proper stroking of the valve.
- The most inward Sonnax valve spool is almost 2.5 times longer then the OE spool, creating more valve-to-bore sealing area.
- Greater sealing area combined with annular grooves allows the valve to stay centered in the bore and prevents side loading.
- An extra PTFE seal and a new spring to fit within the valve spring pocket are included in the kit.
- A replacement O-ring has been included for the OE end plug, to be used after inspecting the TCC regulated apply valve.
Always inspect the TCC regulated apply valve for wear. The O-ring in this kit should be used to replace the original end plug O-ring after inspection. Worn valves or bores can be repaired using the Sonnax TCC regulated apply valve and sleeve kit 84754-34K.
- Valve
- PTFE Seals (2) 1 extra
- Spring
- O-Ring
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Century 2000-2005 V6 3.1L 4 Spd FWD
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Park Avenue, Ultra 1997-2005 V6 3.8L 3.8L SC 4 Spd FWD
Regal 1997-2004 V6 3.8L 3.8L SC 4 Spd FWD
Rendezvous 2002-2007 V6 3.4L 3.5L 3.6L 4 Spd FWD AWD
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Terraza 2005-2007 V6 3.5L 3.9L 4 Spd FWD AWD
Impala 2000-2006 V6 3.4L 3.8L 4 Spd FWD
Impala 2000-2006 V6 3.8L W S.C. 4 Spd FWD
Impala 2006-2011 V6 3.5L 3.9L; V8 5.3L 4 Spd FWD
Malibu 2006-2007 V6 3.9L 4 Spd FWD
Monte Carlo 1997-2005 V6 3.4L 3.8L 4 Spd FWD
Monte Carlo 1997-2005 V6 3.8L W S.C. 4 Spd FWD
Monte Carlo 2006-2007 V6 3.5L 3.9L; V8 5.3L 4 Spd FWD
Uplander 2005-2008 V6 3.5L 3.9L 4 Spd FWD AWD
Venture Van ,APV 1999-2005 V6 3.4L 4 Spd FWD AWD
Aurora 2001-2002 V6 3.5L 4 Spd FWD
Intrique 1998-2002 V6 3.5L 3.8L 4 Spd FWD
Silhouette 1999-2004 V6 3.4L 4 Spd FWD
Aztek 2001-2006 V6 3.4L 4 Spd FWD AWD
Bonneville 1997-2006 V6 3.8L 4 Spd FWD
Bonneville 1997-2006 V6 3.8L W S.C. 4 Spd FWD
Grand Prix 1997 V6 3.8L W S.C. 4 Spd FWD
Grand Prix 1998-2007 V6 3.1L 3.8L 4 Spd FWD
Grand Prix 1998-2007 V6 3.8L W S.C. 4 Spd FWD
Grand Prix 2005-2008 V8 5.3L 4 Spd FWD
G6 2005-2009 V6 3.9L 4 Spd FWD
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