The automatic transmission filter kit keeps contaminants out of the transmission fluid.
Most of the time replacing a transmission filter is spent removing the transmission pan and draining the fluid, it's not a difficult process.
If you are comfortable with removing the pan, popping out the old filter and installing a new filter, and then using the correct pan gasket to reseal the transmission.

Compatible with Chevy 4T40E, 4T45E Automatic Transmission Filter Kit :
1995-2005 Cavalier
2004-2005 Classic
2005-2010 Cobalt
2006-2011 HHR
1997-2010 Malibu

Compatible with Oldsmobile 4T40E, 4T45E Automatic Transmission Filter Kit :
1997-1998 Achieva
1999-2004 Alero
1997-1999 Cutlass

Compatible with Pontiac 4T40E, 4T45E Automatic Transmission Filter Kit :
2007-2010 G5
2005-2010 G6
1999-2005 Grand Am
2005-2006 Pursuit
1995-2005 Sunfire

Compatible with Saturn 4T40E, 4T45E Automatic Transmission Filter Kit :
2007-2009 Aura
2005-2007 Ion
2004-2005 L300
2000 LS
2000 LS1
2000 LS2
2000 LW1
2000 LW2
2006-2010 Vue

Replaces Part #: TF-171, 24221762 automatic transmission filter kit.

NOTE: This is NOT a genuine part, it's a aftermarket replacement part manufactured by Allmotorparts.

NOTE: To ensure accurate fitment, please confirm your vehicle information in the above compatibility section and the description.