January 01, 2013

4T65-E Valve Body Identification

Part No. Chart

Part No.MakeYearsEPC SolenoidOil Pump Shaft Sleeve
GM039 (Warranty Only)Volvo'97-'01HolleyYes
GM040 (Warranty Only)Volvo & GM Tap Shifts'03-LaterBoschNo

Make Identification

The difference between the GM and Volvo versions can be identified by looking at the corner of the valve body. If cut-off it is a GM. If it is a 90° corner, it is a Volvo or GM Tap Shift. See below for examples.

Visual Identification

GM039 (Warranty Only)GM040 (Warranty Only)

Related Parts

While Sonnax makes every effort to ensure the accuracy of technical articles at time of publication, we assume no liability for inaccuracies or for information which may become outdated or obsolete over time.