Bert Transmissions SG-1078 Servo Piston Return Spring

The Bert Transmissions SG-1078 is a critical servo piston return spring designed specifically for Bert Second Generation racing transmissions. This precision-engineered spring ensures reliable clutch band engagement and disengagement by providing consistent return pressure to the servo piston assembly.

Key Specifications:

• Outside Diameter: 5/8 inch
• Length: 1-1/4 inch
• Wire Thickness: .069 inch to .109 inch
• Application: Servo piston assembly
• Compatibility: Bert Second Generation transmissions (SG-1300, SG-1400, SG-1500 models)

This OEM replacement spring is essential for maintaining proper transmission function in late model and modified circle track racing applications. The spring works in conjunction with the servo piston to control clutch band operation, ensuring smooth shifts and positive engagement under demanding racing conditions. Each spring is manufactured to Bert's exacting specifications for reliable performance and long service life.