4L80E 4L85E Transmission TCC Regulator Valve Sonnax 34994-01K
4L80E 4L85E Transmission TCC Regulator Valve Sonnax 34994-01K
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4L80E 4L85E Transmission TCC Regulator Valve Sonnax 34994-01K

$45.99
$45.99
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4L80E 4L85E Transmission TCC Regulator Valve Sonnax 34994-01K

GM vehicles equipped with 4L80-E and 4L85-E transmissions may exhibit problems such as TCC shudder, burnt converter linings, TCC apply and release concerns and related codes. These issues can often be caused by critical pressure loss due to excess wear in the TCC regulator bore. Installing Sonnax TCC regulator valve kit 34994-01K shores up the hydraulic integrity of the TCC control circuit to return robust TCC operation.
  • Hardcoat anodized aluminum valve combats premature wear
  • Lengthened critical spool for added stability and wear prevention
  • Annular grooves help center valve in bore to reduce future side-load wear
  • Added chamfer to improve apply characteristics and prevent shudder
  • Two springs included in kit; one for OE lockup feel, the other provides firmer-than-OE
  • Valve
  • Spring .420" O.D.
  • Seal Scarf-Cut
  • Spring .300" O.D.

APPLICATIONS

Hummer H1 1993-2005 V8 Gas 6.5L Diesel 4 Spd RWD 4X4

Escalade, ESV, EXT 2006-2007 V8 4.8L 5.3L 4 Spd RWD AWD

Avalanche 2001-2003 V8 8.1L 4 Spd RWD 4X4

Express, Savana, 2500-3500 1996-2009 V8 4.8L 5.3L 5.7L 4 Spd RWD 4X4

Express, Savana, 2500-3500 1996-2009 V8 6.0L 7.4L 4 Spd RWD 4X4

Express, Savana, 2500-3500 2006-2010 V8 6.6L Diesel 4 Spd RWD 4X4

Express, Savana, 3500 2002 V8 8.1L 4 Spd RWD 4X4

Silverado,Sierra,1500-3500 1995-2007 V8 5.0L 5.7L 6.0L 6.5L 4 Spd RWD 4X4

Silverado,Sierra,1500-3500 1995-2007 V8 6.6L Diesel 4 Spd RWD 4X4

Suburban 1500-2500 1995-2007 V8 5.7L 6.0L 4 Spd RWD 4X4

Suburban 1500-2500 1995-2007 V8 6.5L Diesel 4 Spd RWD 4X4

Tahoe, Yukon 1995-2007 V8 5.7L 6.0L 4 Spd RWD 4x4

Tahoe, Yukon 1995-2007 V8 6.5L Diesel 4 Spd RWD 4X4

NPR Truck 1991-2004 V8 5.7L 4 Spd RWD

NPR Truck 2005-2010 V8 6.0L Gas 4 Spd RWD

XJS 1993-1996 L6 4.0L; V12 6.0L 4 Spd RWD

 

 

Please be sure your Pan has 17 Bolt Holes

for your Transmission to be a 4L80E

 

Parts ship daily from our distribution center.


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