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Sonnax 56947-17 Elevated Pressure Main Pressure Regulator Spring

Manufacturer

Picture for manufacturer Sonnax

Part Number

56947-17
6 reviews
Sale Price

$32.79

4 left at this price

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Usually delivered within 2 days

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Fitment guaranteed

Fitment guaranteed

Product Details

The Sonnax 56947-17 is an elevated pressure main pressure regulator spring designed to provide approximately 10 psi over OE baseline pressure, helping restore full line pressure in Ford 4R44E, 4R55E, 5R44E, and 5R55E automatic transmissions. This precision-engineered spring is an essential component for transmission rebuilds and repairs where maintaining proper hydraulic pressure is critical.

Key Features:

  • Provides minimal baseline pressure increase for optimal performance
  • Helps restore full line pressure in worn transmissions
  • Direct replacement for OE main pressure regulator spring
  • Manufactured to strict Sonnax quality standards
  • Package quantity: 20 pieces per set

This spring is commonly used during valve body rebuilds to address low line pressure issues, soft shifts, and delayed engagement problems. Sonnax transmission components are trusted by professional rebuilders and technicians for their precision fit and reliable performance in demanding applications.

It was good

Easy to order.

Awesome experience great price fast two day delivery prefect fit propeller boat ran and operated just as explained

website was easy to use and the prices are great

Answer all my questions with outstanding professionalism

Sender arms were long enough that I could bend arms to match oem.

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