TransGo Oversized S4 Regulator Valves 8L90-S4LATE-OS

Name: TransGo Oversized S4 Regulator Valves
Brand: TransGo Performance
SKU: TRG-8L90S4LATEOS
Price: 25.99 USD
Availability: InStock
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Part Number: TRG-8L90S4LATEOS

$25.99

TransGo Oversized S4 Regulator Valves

GM 8L90: Late S4 Valve (Oversized)
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TransGo Oversized S4 Regulator Valves 8L90-S4LATE-OS

TRG-8L90S4LATEOS

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Part Number: TRG-8L90S4LATEOS

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$25.99

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Overview

Brand:

TransGo Performance

Manufacturer's Part Number:

8L90-S4LATE-OS

Part Type:

Automatic Transmission Rebuild Components

Product Line:

TransGo Oversized S4 Regulator Valves

Summit Racing Part Number:

TRG-8L90S4LATEOS

UPC:

810159320009

Automatic Transmission Rebuild Component Type:

Pressure regulator valve

Remanufactured:

Quantity:

Sold individually.

Notes:

Requires 8L90-S4LATE-TK tool kit.

TransGo Oversized S4 Regulator Valves

TransGo's new oversized S4 regulator valves GM 8L45 and 8L90 solve significant wear issues at the S4 regulator valve position. When General Motors made a change to the S4 regulator valve in both the 8L45 and 8L90 transmissions, the updated 2-land design and computer command strategy resulted in significant increased wear, even at low mileage. TransGo Performance redesigned this 2-land style S4 valve with an oversize hardened steel valve, lengthening the land on the spring side to restore hydraulic integrity of the circuit and sealing the signal oil side with a PTFE ring to ensure longevity.

* Corrects/Prevents/Reduces:
-- Slip 1-2 or 1-3 shift
-- Harsh 1-2 or 1-3 shift
-- Coast downshift clunks

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