---
product_id: 8963642
title: "Transmission Sealer – 16 oz | Seals Leaks in Automatic & Manual Transmissions | Restores Seals & Prevents Fluid Loss"
brand: "bluedevil products"
price: "$55"
currency: NZD
in_stock: true
reviews_count: 8
category: "Blue Devil Products"
url: https://www.desertcart.nz/products/8963642-transmission-sealer-16-oz-seals-leaks-in-automatic-and-manual
store_origin: NZ
region: New Zealand
---

# Permanent seal tech Works in manual & auto Stops leaks fast Transmission Sealer – 16 oz | Seals Leaks in Automatic & Manual Transmissions | Restores Seals & Prevents Fluid Loss

**Brand:** bluedevil products
**Price:** $55
**Availability:** ✅ In Stock

## Summary

> 🚀 Seal the deal, stop the leak, and drive worry-free!

## Quick Answers

- **What is this?** Transmission Sealer – 16 oz | Seals Leaks in Automatic & Manual Transmissions | Restores Seals & Prevents Fluid Loss by bluedevil products
- **How much does it cost?** $55 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/8963642-transmission-sealer-16-oz-seals-leaks-in-automatic-and-manual)

## Best For

- bluedevil products enthusiasts

## Why This Product

- Trusted bluedevil products brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Save Time & Money:** Avoid costly repairs and fluid top-offs with a simple 16 oz treatment that stops leaks fast.
- • **Leak-Proof Confidence:** Guaranteed permanent seal that keeps your transmission fluid exactly where it belongs.
- • **Seal Restoration Power:** Revives dried, cracked, and shrunken rubber seals to extend transmission life and performance.
- • **Drive & Repair Simultaneously:** Works actively while you drive—no downtime, just seamless leak prevention.
- • **Dual Transmission Compatibility:** Engineered to restore seals in both automatic and manual transmissions—versatility that fits your ride.

## Overview

BlueDevil Transmission Sealer is a 16 oz additive designed to permanently seal leaks and restore rubber seals in both automatic and manual transmissions. It works dynamically while driving to prevent fluid loss, reduce transmission damage, and extend the life of your vehicle’s transmission system.

## Description

Stop Transmission Leaks Fast BlueDevil Transmission Sealer is a powerful additive that restores seals and stops leaks in both automatic and manual transmissions. It works while you drive, helping prevent fluid loss and transmission damage.

Review: Blue devil it the real Mc Coy - My 2001 odyssey had a rack-and-pinion leak. A lot of fluid needed to be added about evey tank of gas. M y car is running well, and starts every time. . I bought the blue devel transmission sealer. The next time it needed fluid, I let it go down to about 1/2 of the reservoir.Put almost all of the blue devil in the jar. I didn't expect it to stop the leak. I drove it about 200 miles and noticed the steering returned to like new. Well, I thought it might have stopped the leak. I drove the car more until I had a chance to check the fluid level. The reservoir level was up to normal. The leak has stopped, and my steering is acting like it has a new rack. Blue devel stopped my steering leak. y l,eaks Up date 12/17 Monday I checked the p.s fl;uid jar and its still up to the top. Its not leaking fluid .
Review: Actually works - Transmission started leaking about 2 weeks ago. Wife called me and said there is oil on the garage floor after Ieft. Cleaned it up. The next morning there was oil on the floor again. After investigating I realized it was transmission fluid. Went to desertcart to see if there was anything available to stop the leak. There was several options, seemed like the Blue Devil had the best reviews so I ordered. Took a few days to get it. By the time I got it car was leaking a lot. My car holds 12 quarts of fluid so per recommendation I put 12 oz of Blue Devil in. I then topped of the transmission with 5 quarts of Transmission fluid. So in 2 weeks I had lost about 6 quarts of fluid, so quite the leak. Had my doubts but after driving several hundred miles it looks like the leak has completely stopped. Now if it holds up I will be amazed.

## Features

- Guaranteed Permanent Seal
- Restores Dried, Cracked, and Shrunken Rubber Seals
- Works in Manual or Automatic Transmissions
- Permanent Seal

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0079JWMME |
| Best Sellers Rank | #27,164 in Automotive ( See Top 100 in Automotive ) #2 in Automotive Replacement Automatic Transmission Pump Seals Seals |
| Brand | BlueDevil Products |
| Customer Reviews | 4.2 4.2 out of 5 stars (1,134) |
| Date First Available | May 28, 2009 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1 pounds |
| Item model number | 236 |
| Manufacturer | BlueDevil Products |
| Manufacturer Part Number | 00236 |
| Model | 00236 |
| Product Dimensions | 7.25 x 2.75 x 2.75 inches |

## Images

![Transmission Sealer – 16 oz | Seals Leaks in Automatic & Manual Transmissions | Restores Seals & Prevents Fluid Loss - Image 1](https://m.media-amazon.com/images/I/712mv2-hTvL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Do I need to drain all the transmission fluid out before using the blie devil transmission fluid?**
A: No you do not.  This is a good product that works on small transmission fluid leaks.  Unfortunately my vehicle had a leak that was too large and whilst this helped quite noticeably, it was not a complete fix in my case.  It definitely bought me more time before having to pay for an expensive repair.

**Q: Can I use on power steering pump**
A: unknowing for sure , it might if you use a.f.t in power steering pump

**Q: The directions say pour bottle in to Transmission, but then says "one ounce treats one quart of fluid".  So do I need 5 oz. or the entire bottle?**
A: One ounce per quart of transmission fluid

**Q: Could it damage the transmission or other car parts?**
A: Sorry can't answer that but it worked in a 56 year old transmission.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Blue devil it the real Mc Coy
*by B***. on December 10, 2025*

My 2001 odyssey had a rack-and-pinion leak. A lot of fluid needed to be added about evey tank of gas. M y car is running well, and starts every time. . I bought the blue devel transmission sealer. The next time it needed fluid, I let it go down to about 1/2 of the reservoir.Put almost all of the blue devil in the jar. I didn't expect it to stop the leak. I drove it about 200 miles and noticed the steering returned to like new. Well, I thought it might have stopped the leak. I drove the car more until I had a chance to check the fluid level. The reservoir level was up to normal. The leak has stopped, and my steering is acting like it has a new rack. Blue devel stopped my steering leak. y l,eaks Up date 12/17 Monday I checked the p.s fl;uid jar and its still up to the top. Its not leaking fluid .

### ⭐⭐⭐⭐⭐ Actually works
*by D***D on February 19, 2025*

Transmission started leaking about 2 weeks ago. Wife called me and said there is oil on the garage floor after Ieft. Cleaned it up. The next morning there was oil on the floor again. After investigating I realized it was transmission fluid. Went to Amazon to see if there was anything available to stop the leak. There was several options, seemed like the Blue Devil had the best reviews so I ordered. Took a few days to get it. By the time I got it car was leaking a lot. My car holds 12 quarts of fluid so per recommendation I put 12 oz of Blue Devil in. I then topped of the transmission with 5 quarts of Transmission fluid. So in 2 weeks I had lost about 6 quarts of fluid, so quite the leak. Had my doubts but after driving several hundred miles it looks like the leak has completely stopped. Now if it holds up I will be amazed.

### ⭐⭐⭐⭐ Tempory fix
*by J***R on December 23, 2025*

Added this as a tempory fix for the leaking front seal. It slowed down but did not stoo the leak

## Frequently Bought Together

- BlueDevil Products 00236 Transmission Sealer - 16 Ounce
- BlueDevil Products 49499 Oil Stop Leak - 8 Ounce
- BlueDevil Products 00234 Rear Main Sealer - 8 Ounce

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-23*