---
product_id: 11101828
title: "3119 Gear Oil Additive + StopLeak - Extreme Pressure Lubricant Extends Gear Life and Stops Leaks by Conditioning Seals - 8 oz. (Pack of 1)"
brand: "bardahl"
price: "₱3147"
currency: PHP
in_stock: true
reviews_count: 8
category: "Bardahl"
url: https://www.desertcart.ph/products/11101828-3119-gear-oil-additive-stopleak-extreme-pressure-lubricant-extends-gear
store_origin: PH
region: Philippines
---

# Extends gear oil life by reducing wear Reduces gear noise and wear Conditions seals to stop leaks 3119 Gear Oil Additive + StopLeak - Extreme Pressure Lubricant Extends Gear Life and Stops Leaks by Conditioning Seals - 8 oz. (Pack of 1)

**Brand:** bardahl
**Price:** ₱3147
**Availability:** ✅ In Stock

## Summary

> 🛠️ Gear up for leak-free, whisper-quiet drives—because your ride deserves the best!

## Quick Answers

- **What is this?** 3119 Gear Oil Additive + StopLeak - Extreme Pressure Lubricant Extends Gear Life and Stops Leaks by Conditioning Seals - 8 oz. (Pack of 1) by bardahl
- **How much does it cost?** ₱3147 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/11101828-3119-gear-oil-additive-stopleak-extreme-pressure-lubricant-extends-gear)

## Best For

- bardahl enthusiasts

## Why This Product

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

## Key Features

- • **Whisper-Quiet Shifts:** Reduces gear noise and wear, delivering smoother, quieter manual transmission performance.
- • **Seal the Deal on Leaks:** Specialized seal conditioner stops and prevents costly leaks—no more messy surprises.
- • **Effortless Gear Changes:** Improves synchronizer function to decrease shift effort—drive like a pro every time.
- • **Universal Fit, Maximum Impact:** Compatible with all manual transmissions and differentials using standard gear or motor oils.
- • **Prolong Your Gearbox's Lifespan:** Extends gear oil life with advanced Polar Attraction Formula for ultimate protection.

## Overview

Bardahl 3119 Gear Oil Additive + StopLeak is an 8 oz. universal-fit formula designed to extend gear oil life, condition seals to stop leaks, reduce gear wear and noise, and improve manual transmission shifting. Trusted by professionals and DIYers alike, it enhances performance and protects your vehicle’s drivetrain with Bardahl’s proprietary Polar Attraction Formula.

## Description

Bardahl Gear Oil Additive plus Stop Leak is a specially formulated additive for manual transmission, gearboxes and differentials. It extends the life of gear oil. It also fortifies OEM additives with Bardahl’s Polar Attraction Formula, providing a protective film that reduces wear. Gear Oil Additive plus Stop Leak also has a seal conditioner to prevent and eliminate leaks.

Review: It worked for me - I bought a used 2007 Chrysler Pacifica that ended up having a read differential leak which turns out not to be serviceable. (You need another diff). As a last resort I bought the differential conditioner / sealer and to my surprise the leak stopped . Have since put 1500 miles on the car and still clean and dry. As a last resort I would definitely recommend.
Review: Good product - Good product, everything is fine

## Features

- Extends gear oil life
- Conditions seals and eliminates leaks
- Protects against gear wear and reduces gear noise
- Improves synchronizer performance to decrease shift effort in manual transmissions
- Suitable for use in use in all types of manual transmission and differentials that specify standard automotive gear oils or motor oil as the lubricant

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002QET15S |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #616,645 in Automotive ( See Top 100 in Automotive ) #354 in Gear Oils |
| Brand | Bardahl |
| Customer Reviews | 4.4 4.4 out of 5 stars (115) |
| Date First Available | September 2, 2009 |
| Global Trade Identification Number | 00076906031196 |
| Item Weight | 3.2 ounces |
| Item model number | 3119 |
| Manufacturer | Bardahl |
| Manufacturer Part Number | 3119 |
| Model | Gear Oil Additive + StopLeak |
| Product Dimensions | 2 x 2 x 6 inches |
| Size | 8 Ounce |
| UPC | 076906031196 |
| Vehicle Service Type | Car, Truck |

## Product Details

- **Brand:** Bardahl
- **Liquid Volume:** 8 Fluid Ounces
- **Package Information:** Bottle
- **UPC:** 076906031196
- **Vehicle Service Type:** Car, Truck

## Images

![3119 Gear Oil Additive + StopLeak - Extreme Pressure Lubricant Extends Gear Life and Stops Leaks by Conditioning Seals - 8 oz. (Pack of 1) - Image 1](https://m.media-amazon.com/images/I/51BQoM8fnXL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ It worked for me
*by D***S on April 7, 2025*

I bought a used 2007 Chrysler Pacifica that ended up having a read differential leak which turns out not to be serviceable. (You need another diff). As a last resort I bought the differential conditioner / sealer and to my surprise the leak stopped . Have since put 1500 miles on the car and still clean and dry. As a last resort I would definitely recommend.

### ⭐⭐⭐⭐⭐ Good product
*by V***9 on November 24, 2025*

Good product, everything is fine

### ⭐⭐⭐⭐⭐ Seal conditioner
*by K***N on December 13, 2025*

As described sure hoping it stops or slows down yoke and axle seal seepage.

## Frequently Bought Together

- Bardahl 3119 Gear Oil Additive + StopLeak - Extreme Pressure Lubricant Extends Gear Life and Stops Leaks by Conditioning Seals - 8 oz. (Pack of 1)
- Lucas Oil 10043 SAE 80W-90 Heavy Duty Gear Oil - 1 Quart
- Bar's Leaks Axle and Differential Gear Repair, 16.9 Oz

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*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-03-11*