Sonnax rebuilt valve body GM039 is no longer in production. Please check with your distributor for availability. For service inquiries, please see details on Sonnax’s Limited Lifetime Warranty on remanufactured valve bodies.


GM & Volvo 4T65-E valve bodies are significantly different.


Remanufactured Valve Body
Part No. GM039

Volvo, '99-'02

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Save your existing manual valve for reuse with our remanufactured valve body.

  • 4T65-E Remanufactured Valve Body GM039

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)