---
product_id: 611226387
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: "12173 kr"
currency: ISK
in_stock: true
url: https://www.desertcart.is/products/611226387-wit-whatever-it-takes-transmission-parts-inc-superior-6l80-6l90
store_origin: IS
region: Iceland
---

# 20% cooler operation instant cooler fill 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:** 12173 kr
**Availability:** ✅ In Stock

## Summary

> 🛠️ Upgrade Your Transmission Game—Stay Cool, Stay Ahead!

## 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?** 12173 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/611226387-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

- • **Overheat? Not Today:** Built-in safety bypass drastically reduces risk of transmission overheating.
- • **Cool Down Like a Pro:** Slash operating temps by up to 20% for peak performance under pressure.
- • **Zero Wait, Full Flow:** Immediate cooler fill means no downtime—get back on the road faster.
- • **Precision Fluid Check:** Accurate ATF level readings without the annoying warm-up cycle.
- • **Durability Meets Innovation:** Boost your ATF lifespan with cutting-edge cooling tech and included bypass gasket.

## Overview

The WIT WHATEVER IT TAKES Superior 6L80/6L90/8L90 Sure Cool System Upgrade STL010 features a built-in safety bypass and bypass gasket, enabling immediate cooler fill and accurate fluid level checks without warm-up. It reduces average operating temperatures by up to 20%, lowering the risk of overheating under load and extending automatic transmission fluid life.

## 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 |
| Item Weight | 4.6 ounces |
| Product Dimensions | 4 x 4 x 1 inches |
| Item model number | STL010 |
| Manufacturer Part Number | STL010 |

## 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)

## 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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**Shop now:** [https://www.desertcart.is/products/611226387-wit-whatever-it-takes-transmission-parts-inc-superior-6l80-6l90](https://www.desertcart.is/products/611226387-wit-whatever-it-takes-transmission-parts-inc-superior-6l80-6l90)

---

*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-02-02*