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Sonnax Supported Servo Master Kit Powerglide 28821-20K

Product Description For Sonnax Parts
Product Part No: -- 28821-20K
Transmissions: -- Powerglide
Package and Weight
Package Quantity: -- 1 ea
Shipping Weight: -- 2.00 lbs
Sonnax:High Performance Part
Base Price:
$109.89
Product Description
Part Information:
  • Unique cover and pin combination eliminates piston binding that causes unexplained band failure:
  • Race-calibrated spring counteracts pin bias effect up to 275 psi:
  • Dual PTFE seal rings for better seal and low friction:
  • OE apply area:
  • Low-profile design ensures adequate clearance:
  • 6061 Anodized billet aluminum cover:
Part Contants
  1. Supported Servo Cover:
  2. Supported Servo Pin:
  3. Servo Piston:
  4. Return Spring:
  5. Retaining Clip:
  6. Gasket:
  7. Cover O-Ring:
  8. Pin O-Rings (2) 1 extra:
  9. Drain Plug Not shown:
  10. Bolts (3) Not shown:
  11. Pin Shims (2):
  12. Spring Shims (2):
  13. PTFE Piston Seal Rings (2):
Trutech/Procare Transmissions
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Enterprise, Alabama 36330
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Customer Service
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