

⚡ Don’t Replace, Rebuild — Keep Your GM Shifting Smooth and Smart!
The Sonnax 12474030K Pressure Switch Rebuild Kit is a precision-engineered solution for GM 6-speed transmissions, restoring internal TEHCM pressure switch function by repairing laminated discs and seals. It eliminates common trouble codes and shift issues without the need for costly TEHCM replacement, requiring the specialized 124740-TL30 tool for installation. Ideal for professionals and enthusiasts aiming to extend transmission life and maintain peak performance.
| ASIN | B0184HLDJM |
| Actuator Type | Plunger |
| Best Sellers Rank | #192,673 in Automotive ( See Top 100 in Automotive ) #113 in Automotive Replacement Oil Pressure Switches |
| Brand | Sonnax |
| Brand Name | Sonnax |
| Circuit Type | 1-way |
| Connectivity Protocol | X-10 |
| Connector Type | Plug In |
| Contact Material | Plastic |
| Contact Type | Normally Open |
| Control Method | App |
| Customer Reviews | 4.6 out of 5 stars 81 Reviews |
| International Protection Rating | IP00 |
| Manufacturer | Sonnax |
| Material Type | Metal |
| Model | 12474030K |
| Mounting Type | PCB Mount |
| Number of Positions | 2 |
| Operation Mode | ON-OFF |
| Specification Met | Oe |
| Switch Type | Pressure Switch |
| Terminal | Through Hole |
| Unit Count | 1.0 Count |
N**O
6l80 transmission
Worked great for my 6l80 2007 escalade. First hole i did i came out with a crease in it lucky i had extra ones. The best way for me was to insert them like if you had a bowl upside down & just go around pushing it down. Watch
M**L
Price was right
Amazon was $60 cheaper than my local parts store. I couldn’t go wrong. Shipping took about four days and install took about seven hours.
A**Y
Great Kit
This really helped improve the shifting on my 2015 Chevrolet Impala Limited LTZ. I checked the RPO codes in the trunk of the car to verify that I had a Generation 1 6t70 transmission. The kit was relatively easy to install. It took the better part of an afternoon.
B**L
Saved big money considering the alternative
Worked perfectly for my GM 6T70 trans. 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.
F**D
OEM or better.
It is the equivalent of oem if not better. Fixed my issue that I was having on my 6l80 transmission from my Escalade.
R**S
fix the proplem
good product
R**Y
Great kit
The tcm was priced at 896.00 at the local auto parts store. This kit fixed my tcm for pennies on the dollar
J**.
Verify item condition before starting job
This is the brand everyone in the forums say to use, however make sure you inspect your kit before doing the job. I had my car all torn apart only to find out all of the rubber seals except for one were torn.
Trustpilot
2 weeks ago
1 month ago