Search
Browse by Manufacturer
Browse Categories

Industry













Shopping Cart
Your cart is empty.

4L80E / 4L85E Line Pressure Booster Kit


ratingratingratingratingrating
Mfg Retail: $44.32
Cost From Us: $38.88
You Save: $5.44
In Stock
Our Part #: S-4L80E-LB1
Manufacturer: Sonnax
Mfg Part # : 4L80E-LB1
free shipping
4L80E / 4L85E Line Pressure Booster Kit
Boosts Line Pressure & Helps To Firm Up Shifts Extending Transmission Life
  *  Made by Sonnax  *

This Fits All 4L80E / 4L85E Automatic Transmission Applications

Sonnax hydraulic line pressure booster kits contain stronger pressure regulator springs.
These springs in combination with Sonnax's Large Ratio Boost Valve allows for Progressive pressure increase.
These Gradual pressure increases allow for soft shifts in the low RPM range
as well as short shifts in high RPM, Performance Demanding Situations.

Sonnax springs are 10% Thicker than Factory springs.
Incresed Line pressure allows for dramatically more holding strength for bands and clutch packs.

This is a simple and affordable drop-in solution with no special tools or reaming required.

In This Kit You Will Recieve

Large Ratio Boost Assembly
Pressure Regulator Spring
O-Rings (2)
Our Part #       S-4L80E-LB1
Sonnax Part #  4L80E-LB1



We would appreciate the opportunity to serve your transmission parts needs ! ! !

Cascade Transmission Parts , Inc.
All Rights Reserved ®


Customers Who Bought This Also Bought

4L80E Low / Reverse Band (Rear)
Mfg Retail: $46.79
Cost From Us: $37.88
You Save: $8.91
4L80E Low / Reverse Band (Rear)
Brand New, High Energy Lining, Updated - See More Info
free shipping
4L80E Shift Kit
Mfg Retail: $85.40
Cost From Us: $70.88
You Save: $14.52
ratingratingratingratingrating
4L80E Shift Kit
Fits All 4L80E Models 1991 Up - See More Info
free shipping

Product Reviews

(1 Rating, 0 Reviews) Average Rating:
ratingratingratingratingrating
Products










Resources

VIN DECODER





Diagrams

TSB's