---
product_id: 70495357
title: "12474030K - 6L45 6L50 6L80 6L90 6T70 6T75, SONNAX PRESSURE SWITCH REBUILD KIT"
brand: "sonnax"
price: "A$33"
currency: AUD
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.au/products/70495357-12474030k-6l45-6l50-6l80-6l90-6t70-6t75-sonnax-pressure-switch
store_origin: AU
region: Australia
---

# Cost-saving solution Tool compatibility Precision engineering 12474030K - 6L45 6L50 6L80 6L90 6T70 6T75, SONNAX PRESSURE SWITCH REBUILD KIT

**Brand:** sonnax
**Price:** A$33
**Availability:** ✅ In Stock

## Summary

> 💡 Revive, Rebuild, Rejoice!

## Quick Answers

- **What is this?** 12474030K - 6L45 6L50 6L80 6L90 6T70 6T75, SONNAX PRESSURE SWITCH REBUILD KIT by sonnax
- **How much does it cost?** A$33 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/70495357-12474030k-6l45-6l50-6l80-6l90-6t70-6t75-sonnax-pressure-switch)

## Best For

- sonnax enthusiasts

## Why This Product

- Trusted sonnax brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Easy Installation:** Streamlined process for quick repairs.
- • **Eco-Friendly Choice:** Reduce waste by salvaging expensive parts.
- • **Essential Tool Required:** Unlock the full potential with tool 124740-TL30.
- • **High-Quality Components:** Engineered for durability and performance.
- • **Maximize Your Investment:** Transform your TEHCM with this rebuild kit!

## Overview

The SONNAX Pressure Switch Rebuild Kit is designed to salvage your expensive TEHCM, providing a cost-effective solution for maintaining your vehicle's performance. This kit requires the specialized tool 124740-TL30 for installation, ensuring a precise fit and long-lasting results.

## Description

Refill kit - Requires tool 124740-TL30 Listed GM 6-speed transmissions often set various trouble codes related to failures of fluid pressure switches that are internal to the transmission electro-hydraulic control module (TEHCM). These codes may be accompanied by TCC apply problems or shift irregularities such as slipping, flares, harsh application, and bind-ups. As time goes by, the laminated portions of the pressure switches can breach, preventing normal switch operation. If more than one switch breaks down, failsafe mode can be triggered. Since switches cannot be obtained through OE channels, replacement of the TEHCM was the only previous remedy available. It is no longer necessary to replace the expensive TEHCM assembly to rectify this concern. Installing Sonnax pressure switch rebuild kit 124740-30K restores normal switch operation, eliminating codes and providing renewed shift performance in all ranges. Allows salvage of expensive TEHCM NOTE: Before installing kit, test switches to verify proper electrical operation. Kit repairs laminate disc and seal failures only; it will not rectify electrical breakdown. See instructions for details.

## Features

- Allows salvage of expensive TEHCM
- Refill kit - Requires tool 124740-TL30

## Product Details

- **Operation Mode:** ON-OFF
- **Contact Type:** Normally Open
- **Connector Type:** Plug In
- **Brand:** Sonnax
- **Terminal:** Through Hole
- **Circuit Type:** 1-way
- **Actuator Type:** Plunger
- **Contact Material:** Plastic
- **International Protection Rating:** IP00
- **Number of Positions:** 2

## Images

![12474030K - 6L45 6L50 6L80 6L90 6T70 6T75, SONNAX PRESSURE SWITCH REBUILD KIT - Image 1](https://m.media-amazon.com/images/I/31faqE-kEiL.jpg)

## Questions & Answers

**Q: Hi my car is showing pressure valve value too high**
A: Typically when these fail you’ll have pressure switch codes as once the discs fail the pressure switch won’t change states when it’s supposed to

**Q: Will I need a programming tool to plug into the obdII port?**
A: NO, This kit has nothing to do with programing. You are repairing the pressure switches.

**Q: Repair laminate discs are included in the price**
A: Yes-  the are included with the seals.

**Q: Are the repair laminate discs included within the price or no?**
A: Yes-  the are included with the seals.

## Customer Reviews

### ⭐⭐⭐⭐⭐ OEM or better.
*by F***D on February 20, 2025*

It is the equivalent of oem if not better. Fixed my issue that I was having on my 6l80 transmission from my Escalade.

### ⭐⭐⭐⭐⭐ Saved big money considering the alternative
*by B***L on June 23, 2024*

Worked perfectly. If purchasing be sure to buy the installation tool kit. Can't say enough about Sonnax for coming up with this. Worked like a charm. Kudos....big time.

### ⭐⭐⭐⭐⭐ fix the proplem
*by R***S on April 23, 2025*

good product

## Frequently Bought Together

- 12474030K - 6L45 6L50 6L80 6L90 6T70 6T75, SONNAX PRESSURE SWITCH REBUILD KIT
- 124740-TL30 Pressure Switch Installation Tool Kit Works with F/124740-30K, Perfectly Fits for GM Transmissions 6L45 6L50 6L80 6L90 & 1st Gen 6T70 6T75
- GM Genuine Parts 24229593 Automatic Transmission Control Valve Body Cover Gasket

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**Shop now:** [https://www.desertcart.com.au/products/70495357-12474030k-6l45-6l50-6l80-6l90-6t70-6t75-sonnax-pressure-switch](https://www.desertcart.com.au/products/70495357-12474030k-6l45-6l50-6l80-6l90-6t70-6t75-sonnax-pressure-switch)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-01-25*