---
product_id: 481237356
title: "WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC 6L80 6L90 8L90 Sure Cool System Upgrade STL010"
brand: "wit whatever it takes transmission parts, inc"
price: "VT18454"
currency: VUV
in_stock: true
reviews_count: 5
category: "Wit Whatever It Takes Transmission Parts, Inc"
url: https://www.desertcart.vu/products/481237356-wit-whatever-it-takes-transmission-parts-inc-6l80-6l90-8l90
store_origin: VU
region: Vanuatu
---

# built-in safety bypass instant fluid level check 20% cooler operating temps WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC 6L80 6L90 8L90 Sure Cool System Upgrade STL010

**Brand:** wit whatever it takes transmission parts, inc
**Price:** VT18454
**Availability:** ✅ In Stock

## Summary

> ❄️ Keep your transmission chill and your drive thrill!

## Quick Answers

- **What is this?** WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC 6L80 6L90 8L90 Sure Cool System Upgrade STL010 by wit whatever it takes transmission parts, inc
- **How much does it cost?** VT18454 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/481237356-wit-whatever-it-takes-transmission-parts-inc-6l80-6l90-8l90)

## Best For

- wit whatever it takes transmission parts, inc enthusiasts

## Why This Product

- Trusted wit whatever it takes transmission parts, inc brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Proven Reliability:** Trusted by over 1,300 users with a stellar 4.8-star rating—join the sure-cool community now.
- • **Safety First, Always:** Built-in cooler bypass valve ensures continuous flow and prevents overheating under load.
- • **Instant Fluid Insight:** Check fluid levels immediately without waiting for warm-up cycles—no more guesswork.
- • **Stay Cool Under Pressure:** Reduces average transmission temps by up to 20%, extending ATF life and performance.
- • **Universal Fit for Modern Rides:** Compatible with all 2014+ 6L80/90E and 2016+ 8L80/90E transmissions for seamless upgrades.

## Overview

The WIT WHATEVER IT TAKES STL010 Sure Cool System Upgrade is a cutting-edge cooler flow bypass valve kit designed for 2014+ 6L80/90E and 2016+ 8L80/90E transmissions. It delivers immediate fluid level checks without warm-up, reduces operating temperatures by up to 20%, and features a built-in safety bypass to prevent overheating, significantly extending transmission fluid life and reliability.

## Description

Superior STL010 Fits all 2014-up 6L80/90E AND NOW FITS 8L80/90E 2016-up Superior’s Cooler Flow bypass valve kit with TransLab’s patented and patent pending Flow~Control cooler bypass technologies allows full time cooler flow and lube to parts “so you’re not hot under the collar”…you’re SURE~COOL

Review: Good
Review: buen producto cumple con su funcion

## Features

- Built in safety bypass
- Immediate cooler fill
- Immediate accurate fluid level check without warm-up cycle
- Reduced average operating temperatures by as much as 20%
- Reduced risk of overheat while under load, Increased ATF life.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BCL9M23T |
| Best Sellers Rank | #44,586 in Automotive ( See Top 100 in Automotive ) #12 in Automotive Engine Cooling & Heating Coolers |
| Brand | WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,358) |
| Date First Available | 9 October 2022 |
| Item Weight | 110 g |
| Item model number | STL010 |
| Manufacturer | Superior |
| Manufacturer Part Number | STL010 |
| Model | COOLER FLOW BYPASS |
| Product Dimensions | 10.16 x 10.16 x 2.54 cm; 110 g |

## Images

![WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC 6L80 6L90 8L90 Sure Cool System Upgrade STL010 - Image 1](https://m.media-amazon.com/images/I/61C9sS0UHhL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by M***D on 29 July 2024*

Good

### ⭐⭐⭐⭐⭐ Review
*by J***R on 30 October 2025*

buen producto cumple con su funcion

### ⭐⭐⭐⭐⭐ Review
*by E***N on 15 December 2025*

Installation was tricky for me but,... simple enough to accomplish. My transmission temps gave been lowered between 60-90° from high to low ambient temperatures. In warmer weather I was getting 191-197° in traffic and now it is running 100-112° in cold weather and 120-136° in warmer weather. It Works. GET IT, INSTALL IT.

## Frequently Bought Together

- WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC 6L80 6L90 8L90 Sure Cool System Upgrade STL010
- atp automotive B-239 Automatic Transmission Filter Kit for GM Optional 6L80 Heavy-Duty 6-Speed Transmission
- ACDelco GM Original Equipment 10-9395 Dexron VI Automatic Transmission Fluid - 1 gal

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-01-26*