---
product_id: 611226387
title: "Sure Cool System Upgrade STL010 w/ Bypass Gasket"
brand: "wit whatever it takes transmission parts, inc"
price: "€ 83.90"
currency: EUR
in_stock: true
category: "Wit Whatever It Takes Transmission Parts, Inc"
url: https://www.desertcart.pt/products/611226387-sure-cool-system-upgrade-stl010-w-bypass-gasket
store_origin: PT
region: Portugal
---

# 20% cooler operation Immediate cooler fill Built-in safety bypass Sure Cool System Upgrade STL010 w/ Bypass Gasket

**Brand:** wit whatever it takes transmission parts, inc
**Price:** € 83.90
**Availability:** ✅ In Stock

## Summary

> ❄️ Keep your transmission chill while others overheat!

## Quick Answers

- **What is this?** Sure Cool System Upgrade STL010 w/ Bypass Gasket by wit whatever it takes transmission parts, inc
- **How much does it cost?** € 83.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/611226387-sure-cool-system-upgrade-stl010-w-bypass-gasket)

## 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-and-Play Upgrade:** Includes bypass gasket for seamless installation and instant reliability.
- • **Instant Fluid Accuracy:** Check fluid levels immediately—no warm-up wait, no guesswork.
- • **Stay Cool Under Pressure:** Slash operating temps by up to 20% for peak transmission performance.
- • **Overheat? Not on Your Watch:** Built-in safety bypass reduces risk of costly transmission overheating.
- • **Boost Transmission Longevity:** Lower temps mean extended ATF life and fewer maintenance headaches.

## Overview

The WIT WHATEVER IT TAKES Superior Sure Cool System Upgrade STL010 is a precision-engineered transmission cooler upgrade compatible with 6L80, 6L90, and 8L90 models. Featuring a built-in safety bypass and immediate cooler fill, it reduces operating temperatures by up to 20%, extends ATF life, and allows instant fluid level checks without warm-up. This upgrade includes a bypass gasket for easy installation, making it a must-have for professionals seeking reliable, high-performance transmission maintenance.

## Description

Buy WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC Superior 6L80 6L90 8L90 Sure Cool System Upgrade STL010 with Bypass Gasket: Transmissions & Parts - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## 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 |
|---------------|-------|
| ASIN | B0CV6RDK5V |
| Best Sellers Rank | #5,262 in Automotive ( See Top 100 in Automotive ) #32 in Automotive Replacement Transmissions & Parts |
| Brand | WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC |
| Customer Reviews | 4.7 4.7 out of 5 stars (578) |
| Date First Available | February 7, 2024 |
| Item Weight | 4.6 ounces |
| Item model number | STL010 |
| Manufacturer | Superior |
| Manufacturer Part Number | STL010 |
| Model | COOLER FLOW BYPASS |
| Product Dimensions | 4 x 4 x 1 inches |

## Images

![Sure Cool System Upgrade STL010 w/ Bypass Gasket - Image 1](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

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-10-01*