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Oversized Pump Gear Set
Part No. 28201-OSK

View Instructions

Sonnax offers oversized pump gear set 28201-OSK for GM Powerglides. The O.D. of the outer gear is .030" larger than OE and the gear set is .015" thicker than OE pump gear sets.

  • Allows the pump housing to be refurbished
  • Powdered metal gears promote self-lubrication via oil impregnation

Sonnax pump gears are manufactured as a matched set, therefore, components must not be separated or mixed with other gear sets.

  • Inner Pump Gear
  • Outer Pump Gear
  • 28201 osk