Tech Resources Transmission Remanufactured Valve Bodies Article GM Identification Guides Remanufactured Valve Bodies
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January 01, 2013
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4T40-E Valve Body Identification

Valve Body Xpress

The most efficient way to identify this valve body is by the casting number. In addition, we have illustrated below some more detailed information to aid in the valve body identification process.

Part Number Chart

Part NumberDescriptionCasting Number
GM036'97-'0124209130
GM061'02-'0324214698
GM062'04-'0524216020
GM063'06-'0824233226


Identification Changes by Year


YearsChanges
'97-'01
  • Has 2-3 accumulator valve, spring & end plug.
  • Has a large EPC.
  • There are 6 oil feed holes for pressure switch manifold.
'02-'03
  • NO 2-3 accumulator valve, spring or end plug. Bore is casted over where 2-3 accumulator was.
  • Has a large EPC.
  • There are 6 oil feed holes for pressure switch manifold.
'04-'05
  • NO 2-3 accumulator valve, spring or end plug. Bore is casted over where 2-3 accumulator was.
  • Uses small Bosch EPC.
  • There are 3 oil feed holes for pressure switch manifold.
  • TCC feed limit valve eliminated.
'06-'08
  • NO 2-3 accumulator valve, spring or end plug. Bore is casted over where 2-3 accumulator was.
  • Uses small Bosch EPC.
  • There are 3 oil feed holes for pressure switch manifold.
  • TCC feed limit valve eliminated.
  • Worm tracks are slightly different.

2003 Saturn 4T40/4T45E EPC Change

Saturn L-Series vehicles with 4T40-E/4T45-E transmissions began using a small diameter Bosch solenoid in 2003 models. 2000-2002 Saturn L-Series vehicles with this transmission will have a Delphi large diameter solenoid. General Motors followed suit and made the change to the small diameter Bosch solenoid in 2004 and up 4T40-E/4T45-E applications.

Both solenoids will physically fit into the EPC bore on the valve body and both solenoids have the same electrical connector so they will both connect to the harness, however, installing the wrong solenoid will adversely affect the shift quality and may not set a trouble code. Installing a Bosch EPC into 2000-2002 vehicles will cause harsh shifts that may not adapt out. Installing a Delphi EPC into '03-later vehicles will cause soft/slipping shifts & and may or may not set a trouble code.

Part number GM061 for the '02-'03 4T40E/4T45E valve body was fitted with the Delphi EPC for GM vehicles. If you have a 2003 Saturn that needs the Bosch EPC it will need to be an R&R special order.

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Related Units

4T45-E Transmission 4T40-E Transmission


Related Parts

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