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Sonnax Boost Valve Kit For 4L60E 4L65E 4L70E 77898E-14K

Product Description For Sonnax Parts

Product Part No: -- 77898E-14K

Transmissions: -- 4L60E 4L65E 4L70E
Pricing Information:
Package and Weight
Package Quantity: 1 ea Weight: 1.50 lbs
Base Price:
Product Description
Replaces late pump design, 1.890” length (short) sleeve, standard OE ratio assemblies
View Part Detail & Install Instructions
Sonnax Boost Valve Kit 77898E-14K
WARNING: OE has made multiple pump design changes. Transmission will not function properly if the wrong length sleeve is installed. Verify length of OE sleeve and select Sonnax kit with equivalent sleeve length:

Part Contents

  1. Valve 3 Grooves:
  2. Sleeve:
  3. O-Rings (3) 1 Extra:
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