---
product_id: 68880671
title: "Stops Leaks: Gasoline Engines, Diesel Engines, Automatic Transmissions, Manual Transmissions, Power Steering, Rack and Pinion, Differentials and Hydraulic Systems - 8 oz."
brand: "seallube"
price: "€ 81.78"
currency: EUR
in_stock: true
reviews_count: 8
category: "Seal Lube"
url: https://www.desertcart.fi/products/68880671-stops-leaks-gasoline-engines-diesel-engines-automatic-transmissions-manual-transmissions
store_origin: FI
region: Finland
---

# Works in hours, lasts for years Stops leaks in gasoline & diesel engines Restores rubber seals’ elasticity & strength Stops Leaks: Gasoline Engines, Diesel Engines, Automatic Transmissions, Manual Transmissions, Power Steering, Rack and Pinion, Differentials and Hydraulic Systems - 8 oz.

**Brand:** seallube
**Price:** € 81.78
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal the deal on leaks before they seal your fate!

## Quick Answers

- **What is this?** Stops Leaks: Gasoline Engines, Diesel Engines, Automatic Transmissions, Manual Transmissions, Power Steering, Rack and Pinion, Differentials and Hydraulic Systems - 8 oz. by seallube
- **How much does it cost?** € 81.78 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/68880671-stops-leaks-gasoline-engines-diesel-engines-automatic-transmissions-manual-transmissions)

## Best For

- seallube enthusiasts

## Why This Product

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

## Key Features

- • **Seal Revitalizer:** Restores flexibility and tensile strength of worn rubber seals
- • **Safe & Compatible:** Works with all fluids, synthetic or conventional, no petroleum distillates
- • **Fast-Acting Formula:** Starts working within hours to save you downtime
- • **Universal Leak Stopper:** Seals leaks across engines, transmissions, power steering & hydraulics
- • **Long-Lasting Protection:** Prevents future leaks by conditioning new and old seals

## Overview

SealLube is a powerful 8 oz additive designed to stop leaks in gasoline and diesel engines, transmissions, power steering, and hydraulic systems by restoring rubber seals to their original condition. Compatible with all fluid types and safe for repeated use, it works within hours and provides long-lasting leak protection, making it an essential maintenance upgrade for any vehicle or equipment.

## Description

SealLube Positively Stops Existing Leaks In Any Fluid System: Gasoline engines, diesel engines, marine engines, farm tractors, hydraulic systems, manual transmissions, automatic transmissions, power steering units, rack and pinion, jacks, heavy equipment, differentials, refillable shock absorbers, gear cases, I/O drives, PTO valves and air conditioners. Do not use in brake systems. The SealLube formula quickly revitalizes hard, shrunken, leaking rubber seals to original condition and prolongs the life of all seals to prevent future leaks. SealLube added to any system will prevent future leaks by conditioning even new seals. Does not work on paper or cork. Compatible with all manufacturers’ fluids, both conventional and synthetic. DIRECTIONS: 1. With engine or equipment not operating, add 1 oz. of SealLube per quart capacity to fluid reservoir, crankcase, or oil sump (one 8 oz. bottle treats up to 8 quarts). 2. Start engine and drive vehicle or operate equipment as normal. The SealLube formula quickly revitalizes hard, shrunken, leaking rubber seals to like new condition as the fluid circulates. Since SealLube does not contain petroleum distillates, which can destroy seals after temporarily expanding them, it is safe to repeat the treatment if the seal/system ever leaks in the future.

Review: Best hydraulic stop leak without question - Have 1520 John Deere tractor with a major hydraulic lift leak. It leaked even when the tractor wasn’t running. Supposedly, SealLube would cause the o-rings and seals to soften up and regain some of their elasticity. This product is working as advertised. It has saved me over $2500.
Review: hydraulic leaks - Product worked great on my internal hydraulic leak on my tractor needed 4 bottles took care of a 7 gal hydraulic leak resevoir where pump was leaking

## Features

- Stops Leaks: Gasoline Engines, Diesel Engines, Hydraulic Systems, Transmissions, Power Steering Units, Rack and Pinion, Differentials, A/C and much more!
- Restores flexibility, elasticity and tensile strength of all rubber seals
- Seals Leaks: Transmissions, power steering, main bearing, jacks & hydraulic systems
- Works in Hours - Lasts for Years

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B079SN84J1 |
| Best Sellers Rank | #42,105 in Automotive ( See Top 100 in Automotive ) #68 in Engine & Oil Fluid Additives |
| Brand | SealLube |
| Customer Reviews | 4.3 4.3 out of 5 stars (797) |
| Date First Available | February 13, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1 pounds |
| Manufacturer | NEW TECH INTERNATIONAL |
| Manufacturer Part Number | 4008 |
| Package Dimensions | 6 x 4 x 4 inches |

## Images

![Stops Leaks: Gasoline Engines, Diesel Engines, Automatic Transmissions, Manual Transmissions, Power Steering, Rack and Pinion, Differentials and Hydraulic Systems - 8 oz. - Image 1](https://m.media-amazon.com/images/I/71syXMF5V2L.jpg)

## Available Options

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

## Questions & Answers

**Q: Hello, im not sure if this is a prohibited item?. in dominican customs (final destination). quimics, corrosive, are good if good package...**
A: it expands rubber,I don't see any customs problem,I'm not a lawyer....

**Q: Will it work on a motorcycle that has a wet clutch?**
A: As a matter of fact I used it in my clutch on a manual Corolla, and it actually helped quite a bit.

**Q: Will this expand viton rubber o-rings**
A: I’m not certain what types of rubber. I just know it worked on a transmission seal that was pouring out in a stream. Multiple rear main and power steering systems. Been using this product since 2001. Don’t use in braking system!!

**Q: Will this seal up microscopic crack in a All aluminum transmission casting?**
A: No it won’t seal a microscopic crack in aluminum or any other metal. It’s rejuvenates certain rubber seals found in engine blocks and transmissions.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best hydraulic stop leak without question
*by T***N on January 2, 2026*

Have 1520 John Deere tractor with a major hydraulic lift leak. It leaked even when the tractor wasn’t running. Supposedly, SealLube would cause the o-rings and seals to soften up and regain some of their elasticity. This product is working as advertised. It has saved me over $2500.

### ⭐⭐⭐⭐⭐ hydraulic leaks
*by O***M on November 14, 2025*

Product worked great on my internal hydraulic leak on my tractor needed 4 bottles took care of a 7 gal hydraulic leak resevoir where pump was leaking

### ⭐⭐⭐⭐ Works great, but....
*by R***O on June 20, 2020*

My Kubota 2370 was leaking tranny fluid somewhere in the neighborhood of 1 Qt./month. I added a bottle of SealLube 5 weeks ago. The leak has subsided to a trickle. The dipstick has read full ever since. I still have a pan under the transmission and a slight amount has leaked, but, nowhere near as much. However, the hashmarks on the plastic dipstick have disappeared and the plastic is a little soft. I don't know if this a result of adding the SealLube or just a coincidence. Has anyone else had this kind of problem? Makes me wonder if the transmission is operating at a higher temp since I added the SealLube.

## Frequently Bought Together

- SealLube - Stops Leaks: Gasoline Engines, Diesel Engines, Automatic Transmissions, Manual Transmissions, Power Steering, Rack and Pinion, Differentials and Hydraulic Systems - 8 oz.
- ATP Automotive AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-05*