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Allison Pass Through Connector Seal thumbnail
 
10685 Pass Through Connector Seal, LB7 LLY LBZ LMM LML L5P, 2001-2018 Allison 1000Transmission leaking by wire harness? This is usually the issue.

2500HD 3500 Silverado Sierra 6.6L V8 Duramax diesel:
2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018

$9.95
 
10686 Allison 1000 Pass Through Connector Seal and Body, LB7 LLY LBZ LMM LML L5P, 2001-2017 DuramaxTransmission leaking by wire harness? This is usually the issue

2500HD 3500 Silverado Sierra 6.6L V8 Duramax diesel:
2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017

$19.95
29536833 Allison C,D,E,G Shift Valve Solenoid thumbnail
 
29536833 Allison 1000 C,D,E,G Shift Valve Solenoid, LB7 LLY LBZ LMM LML L5P, 2001-2018 Duramax2500HD 3500 Silverado Sierra 6.6L V8 Duramax diesel:
2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018*

$25.95
Allison "F" TCC Solenoid, 5 Speed-t
 
8683187 Allison 1000 5 Speed F TCC Solenoid, 5 Speed,LB7 LLY, 2001-2005 DuramaxF solenoid controls TCC operation

2500HD 3500 Silverado Sierra 6.6L V8 Duramax diesel:
2001, 2002, 2003, 2004, 2005

$54.95
2 Way Connector With Wire, Transfer Case and Transmission Speed Sensor-t
 
10402 2 Way Connector With Wire, Transfer Case and Transmission Speed Sensor, Allison 1000Transfer Case and Transmission Speed Sensor
$11.95
Allison Pressure Switch Assembly, LB7/LLY/LBZ/LMM, 2001-2010-t
 
29546972 Allison Pressure Switch Assembly, LB7 LLY LBZ LMM LML L5P, 2001-2017Replacement switch assembly. Fits 01-10
$69.95
Allison Internal Wire Harness, 04-05, With G Solenoid-t
 
29539792 Allison 1000 Internal Wire Harness, 04-05, LLY, Duramax With G Solenoid
Genuine Allison replacement internal wiring harness. Fits 2004.5 , 2005 LLY models with 5 speed Allison with G solenoid.

2500HD 3500 Silverado Sierra 6.6L V8 Duramax diesel:
2004, 2005

$89.95
Allison NSBU Switch 2004.5-2005-t
 
29541852 Allison NSBU Switch 2004.5-2005This switch is for use on 2004-2005 Model year trucks. Double check your switch to ensure it is the single connector part
$99.00
Allison "A" Trim Solenoid-t
 
29533074 Allison 5 Speed A Trim Solenoid, LB7 LLY, 2001-2005 DuramaxThe "A" trim solenoid is easily identified by the green colored O-ring

2500HD 3500 Silverado Sierra 6.6L V8 Duramax diesel:
2001, 2002, 2003, 2004, 2005

$149.95
Allison "B" Trim Solenoid-t
 
29533075 Allison 5 Speed B Trim Solenoid, LB7 LLY, 2001-2005 DuramaxThe "B" solenoid is identified by the black o-ring

2500HD 3500 Silverado Sierra 6.6L V8 Duramax diesel:
2001, 2002, 2003, 2004, 2005

$154.95
Fleece Performance Allilocker, 2001-2016-t
 
FPE-ALILKR Fleece Performance Allilocker, 2001-2016
$179.00
2003-2005 Fleece Performance Tapshifter-t
 
FPE-TAPSHIFTER-35 2003-2005 Fleece Performance TapshifterShift your 2003-2005 GM Allison Transmission with the touch of a button just like the 2006 and newer trucks
$324.95