Sonnax 184740-01K Signal Damper Piston Kit for Automatic Transmission Valve Body

The Sonnax 184740-01K signal damper piston kit is a drop-in repair for automatic transmission valve bodies. Signal dampers soften the signal fluid pressure from each control solenoid before it reaches its valve. This removes pressure spikes and helps the transmission operate smoothly.

Key Features:

• Replaces worn OE signal dampers to correct circuit pressure variations
• Drop-in design repairs the valve channel casting without reaming or modifying the valve body
• Includes 4 pistons
• Addresses bore and piston wear that lets pressure vary between the control solenoids and valves
• Helps cure burnt clutches, soft shifts, and shift concerns tied to circuit pressure loss

When the bore or pistons wear, the dampers can no longer control pressure variation. This kit restores that control with a long-lasting, quick repair.