---
product_id: 683879671
title: "WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC Superior 6L80 6L90 8L90 Sure Cool System Upgrade STL010 with Bypass Gasket"
brand: "wit whatever it takes transmission parts, inc"
price: "₨58676"
currency: LKR
in_stock: true
url: https://www.desertcart.lk/products/683879671-wit-whatever-it-takes-transmission-parts-inc-superior-6l80-6l90
store_origin: LK
region: Sri Lanka
---

# Immediate fluid level check 20% cooler operation Built-in safety bypass WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC Superior 6L80 6L90 8L90 Sure Cool System Upgrade STL010 with Bypass Gasket

**Brand:** wit whatever it takes transmission parts, inc
**Price:** ₨58676
**Availability:** ✅ In Stock

## Summary

> ❄️ Keep your ride cool, calm, and unstoppable with Sure Cool tech!

## Quick Answers

- **What is this?** WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC Superior 6L80 6L90 8L90 Sure Cool System Upgrade STL010 with Bypass Gasket by wit whatever it takes transmission parts, inc
- **How much does it cost?** ₨58676 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/683879671-wit-whatever-it-takes-transmission-parts-inc-superior-6l80-6l90)

## 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

- • **Plug & Play Upgrade:** Fits all 2014+ 6L80/90E and 2016+ 8L80/90E models with included bypass gasket—no assembly required.
- • **Safety First, Always:** Built-in bypass valve prevents overheating, extending transmission life and reliability.
- • **Instant Fluid Insight:** Check accurate ATF levels immediately—no warm-up wait, no guesswork.
- • **Maximize ATF Longevity:** Lower temps mean your transmission fluid lasts longer, saving you time and money on maintenance.
- • **Stay Sure-Cool Under Pressure:** Reduces operating temps by up to 20%, keeping your transmission chill even under heavy load.

## Overview

The WIT WHATEVER IT TAKES Superior 6L80/90 Sure Cool System Upgrade (STL010) is a precision-engineered transmission cooler bypass valve kit designed for 2014+ 6L80/90E and 2016+ 8L80/90E models. Featuring patented Flow~Control technology and an included bypass gasket, it delivers immediate fluid level accuracy, reduces operating temperatures by up to 20%, and prevents overheating under load—extending ATF life and enhancing transmission reliability without any assembly needed.

## Description

WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC Superior 6L80 6L90 8L90 Sure Cool System Upgrade STL010 with Bypass Gasket

## 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.
- Includes Bypass Gasket

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Superior |
| Brand | WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC |
| Model | COOLER FLOW BYPASS |
| Product Dimensions | 10.16 x 10.16 x 2.54 cm; 130 g |
| Item model number | STL010 |
| Manufacturer Part Number | STL010 |
| Assembly Required | No |
| Manufacturer | Superior |
| Item Weight | 130 g |

## Images

![WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC Superior 6L80 6L90 8L90 Sure Cool System Upgrade STL010 with Bypass Gasket - Image 1](https://m.media-amazon.com/images/I/61jMu20b8ZL.jpg)
![WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC Superior 6L80 6L90 8L90 Sure Cool System Upgrade STL010 with Bypass Gasket - Image 2](https://m.media-amazon.com/images/I/61jMu20b8ZL.jpg)

## Frequently Bought Together

- WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC Superior 6L80 6L90 8L90 Sure Cool System Upgrade STL010 with Bypass Gasket
- 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

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.lk/products/683879671-wit-whatever-it-takes-transmission-parts-inc-superior-6l80-6l90](https://www.desertcart.lk/products/683879671-wit-whatever-it-takes-transmission-parts-inc-superior-6l80-6l90)

---

*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-02-18*