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Machining Required

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Machining Required

9-1/2" LU

Piston Plate

Part No.

CH-DA-3P

Piston Plate
  • Piston Plate

Small_ch-da-3p

9-1/2" LU

Piston Plate

Part No. CH-DA-3P

  • Material: Steel
  • Surface Finish: Reactive
  • Machining Process: Fully Machined Forging

Chrysler 9-1/2" LU converters have a high rate of failure due to the pressure spikes caused by the transmission, and reliable lockup pistons are hard to find. Sonnax offers piston plate CH-DA-3P, an improved design with increased wall thickness in critical areas, making for a stronger and more durable piston. This piston plate has a reactive surface finish like the OE piston, but is designed for a .045" thick friction ring instead of the OE .070" drop-in friction rings.

  • Made from billet steel
  • Increased wall thickness for greater stiffness
  • Reactive surface finish
  • For bonded front covers
NOTE:

This piston does not include the damper spring retainers. The spring retainer must be salvaged from an OE piston assembly and welded to the new piston plate.

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