Sonnax 4L60E Boost Valve and Spring Kit .490''

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Sonnax 4l60e Boost Valve And Spring Kit 490

Line Pressure Booster Kit
  • 4L60-E, 4L65-E, 4L70-E
  • Fits Early-Style Pump Early-style pump
  • Valve
  • Sleeve
  • Pressure Regulator Spring
  • O-Rings (2)

    Line pressure booster kit 4L60E-LB1 fits early-style GM 4L60-E, 4L65-E and 4L70-E pumps. Sonnax hydraulic line pressure booster kits contain stronger pressure regulator springs and large ratio boost valves designed to work together to provide progressive pressure increases as driving conditions become more demanding.

    Our pressure regulator springs are approximately 10 stronger than OE and more conservative in impact than other aftermarket kit springs. Large ratio boost valves provide higher pressure incrementally and when it is needed the most. The combination of these springs and valves in a Sonnax kit gives you the best of both worlds: a modest pressure increase at the low end, with a high-end pressure that is equal to or greater than that of other aftermarket kit springs.

  • Achieve shorter shifts and increased torque capacity without creating low-speed harshness
  • Improved band and clutch holding capacity for increased durability
  • Progressive pressure increase as driving conditions become more demanding
  • All the benefits of increased line pressure without overloading the pump at idle
  • Simple and affordable drop-in solution with no special tools or reaming required
  • NOTE: Fits early-style pump with long 1.907" sleeve only. Use 4L60E-LB2 for later pumps with short, 1.810" sleeve

    - 4L60-E, 4L65-E,...
    - Fits Early-Style Pump Early-style...
    - Valve
    - Sleeve
    - Pressure Regulator...

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    Top 5 reviews in total 224 Customer reviews

    • 	Jacob 	Moore
      02 December, 2019

      Jacob Moore

      starstarstarstarstar 5.0 out of 5 stars

    • 	Cameron 	Miller
      06 December, 2019

      Cameron Miller

      starstarstarstarstar-half 4.4 out of 5 stars

    • 	Kyle 	Smith
      03 December, 2019

      Kyle Smith

      starstarstarstarstar 5.0 out of 5 stars

    • Jack 	Garcia
      07 December, 2019

      Jack Garcia

      starstarstarstarstar-none 4.0 out of 5 stars

    • 	Christopher 	Davis
      07 December, 2019

      Christopher Davis

      starstarstarstarstar 5.0 out of 5 stars


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    Customer Reviews

    Sonnax 4L60E Boost Valve and Spring Kit .490''
    starstarstarstarstar-half 4.5 out of 5 stars
    By 224 Customers

    Product Information

    - Price: (Check on Amazon)
    - Manufacturer: Sonnax
    - Brand: Wellington Parts Corp
    - Sales Rank: #240641
    - Product Group: Automotive Parts and Accessories
    - Total New: 10
    - Availability: Usually ships in 1-2 business days
    - Availability Type: now
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