---
product_id: 733196861
title: "Bar 's Leaks hj12 – 6pk Jack Oil with Stop Leak – 12.5オンス、( Pack of 6 ) Pack of 1 HJ12"
brand: "ブランド: bar's products"
price: "¥15143"
currency: JPY
in_stock: false
reviews_count: 5
category: "ブランド: Bar's Products"
url: https://www.desertcart.jp/products/733196861-bar-s-leaks-hj12-6pk-jack-oil-with-stop-leak
store_origin: JP
region: Japan
---

# Stops current & future leaks Compatible with all oil types 12.5 oz premium jack oil Bar 's Leaks hj12 – 6pk Jack Oil with Stop Leak – 12.5オンス、( Pack of 6 ) Pack of 1 HJ12

**Brand:** ブランド: bar's products
**Price:** ¥15143
**Availability:** ❌ Out of Stock

## Summary

> 🛠️ Seal the deal with Bar's Leaks – because leaks are so last season!

## Quick Answers

- **What is this?** Bar 's Leaks hj12 – 6pk Jack Oil with Stop Leak – 12.5オンス、( Pack of 6 ) Pack of 1 HJ12 by ブランド: bar's products
- **How much does it cost?** ¥15143 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/733196861-bar-s-leaks-hj12-6pk-jack-oil-with-stop-leak)

## Best For

- ブランド: bar's products enthusiasts

## Why This Product

- Trusted ブランド: bar's products brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Bulk Pack Advantage:** 6-pack of 12.5 oz bottles ensures you’re always stocked and ready—never caught off guard by leaks again.
- • **Leak-Proof Confidence:** Prevents existing leaks and safeguards against future ones, so your hydraulic systems stay flawless.
- • **Non-Corrosive Formula:** Protects your equipment with a non-corrosive, clog-free, and non-foaming blend that keeps performance smooth.
- • **Trusted & Highly Rated:** With a 4.7-star rating from over 3,300 users, this is the go-to oil for pros who demand reliability.
- • **Universal Compatibility:** Works seamlessly with all floor and bottle jacks plus snow thrower fluids—one solution for every machine.

## Overview

Bar's Leaks HJ12 is a 12.5-ounce jack oil with stop leak additive, designed to prevent current and future leaks in all floor and bottle jacks as well as snow thrower fluids. Its non-corrosive, clog-free, and non-foaming formula is compatible with petroleum-based, mineral, and synthetic oils. Sold in a convenient 6-pack, it’s a highly rated, professional-grade solution trusted by thousands for reliable hydraulic maintenance.

## Description

Bar 's Leaks hj12 – 6pk Jack Oil with Stop Leak – 12.5オンス、( Pack of 6 ) Pack of 1 HJ12が燃料・オイル用ツールストアでいつでもお買い得。当日お急ぎ便対象商品は、当日お届け可能です。アマゾン配送商品は、通常配送無料（一部除く）。

Review: Not fixing the jack problem still not working
Review: Refilled a hydraulic pump and there were no issues. No new leaks or viscosity issues. Thickness and smell and use in a 10-ton press is going just as expected - no problems.

## Features

- 現在の漏れを防ぎ、将来の漏れを防ぎます。
- すべてのフロアとボトルジャック、すべての除雪機液に使用できます。
- 非腐食性、詰まりなし、非発泡性。
- すべての石油ベース、鉱油、合成液に対応。

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002KKIBY |
| Amazon 売れ筋ランキング | 車＆バイク - 215,452位 ( 車＆バイクの売れ筋ランキングを見る ) 燃料・オイル用ツール - 1,332位 |
| Amazon.co.jp での取り扱い開始日 | 2014/6/13 |
| おすすめ度 | 4.7 5つ星のうち4.7 (3,397) var |
| ブランド | Bar's Products |
| メーカー | Bar's Leaks |
| メーカーにより製造中止になりました | いいえ |
| モデル名 | HJ12 |
| 商品の寸法 奥行き × 幅 × 高さ | 16.8 x 9.1 x 8.6 cm |
| 商品の重量 | 358 g |
| 商品モデル番号 | HJ12 |
| 色 | 無色(No Color) |
| 製品サイズ | 16.76 x 9.14 x 8.64 cm; 358.34 g |

## Product Details

- **パッケージ情報:** ボトル
- **ブランド:** Bar's Products
- **商品の重量:** 0.79 ポンド
- **材質:** プラスチック
- **液体容量:** 12.5 液量オンス

## Images

![Bar 's Leaks hj12 – 6pk Jack Oil with Stop Leak – 12.5オンス、( Pack of 6 ) Pack of 1 HJ12 - Image 1](https://m.media-amazon.com/images/I/61ZLB89AjpL.jpg)

## Questions & Answers

**Q: I don't have any leaks on my 3 tons Pittsburg car jack.  Can I still use/fill this oil as a hydraulic oil?**
A: Yes you can it’s just a thicker viscosity to help prevent a leak. Any hydraulic oil can be used also.

**Q: What is the ISO viscosity grade?**
A: This product is around a 5w oil in viscosity. The ISO standards for the viscosity of this product are located on our SDS sheet. I am providing the link below. https://barsleaks.com/wp-content/uploads/2019/07/HJ12-SDS-1.pdf

If you have any other technical questions, feel free to contact our Technical Service Professionals at 800-345-6572 or if you would prefer you can use the contact us page on our website.

**Q: Is this an addative to regular oil or do you fill your entire jack with?**
A: Bar’s Leaks Jack Oil with Stop Leak is engineered to stop seal and o-ring leaks caused by normal jack wear and age. If you regularly have to add oil to your jack (and snow plow hydraulics), you’re probably dealing with a leak. This formula renews old jacks and light hydraulics and prevents leaks and seepage on new jacks and hydraulics. Not to mention, it mixes with all approved hydraulic jack oils as well as snow plow fluids, and works in all floor and bottle jacks. It’s 100% safe: non-corrosive, non-clogging and non-foaming.

DIRECTIONS

Clean area around filler cap. Fill jack to proper level. Do not overfill. Cycle jack by lifting and releasing a few times to release any air caught in system. Leaks usually stop in a few days of normal use. If leak continues, repair may be required.

When using the HJ12 (Hydraulic Jack Oil with Stop Leak) top off fluid level as needed. For larger systems use one bottle for every 2 quarts of oil capacity. Do not fill entire jack with HJ12 Fluid. 

If you have any other technical questions, feel free to contact our Technical Service Professionals at 800-345-6572 or if you would prefer you can use the contact us page on our website.

**Q: Can I  use at outboard tilt engines**
A: We would need a bit more information on the operation of the system and where you would be adding the fluid. If adding to a closed loop hydraulic pump that lifts and lowers the motor then yes you can use this product. Please contact our Technical Service Professionals at 800-345-6572 or if you would prefer you can use the contact us page on our website. https://barsleaks.com/contact-us/

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***R on 2024年1月20日にアラブ首長国連邦でレビュー済み*

Not fixing the jack problem still not working

### ⭐⭐⭐⭐⭐ Review
*by M***E on 2025年11月13日にアメリカ合衆国でレビュー済み*

Refilled a hydraulic pump and there were no issues. No new leaks or viscosity issues. Thickness and smell and use in a 10-ton press is going just as expected - no problems.

### ⭐⭐⭐⭐⭐ Review
*by A***R on 2025年10月29日にカナダでレビュー済み*

Absolutely incredible product! My floor jack had been slowly leaking down for months and I was ready to toss it and buy a new one. Then I found Bar's Leaks Jack Oil with Stop Leak, and what a difference it made. After topping off the fluid, the jack lifted smoothly again and held pressure like it was brand new. You can see the improvement right away. No more creeping down and no more puddles under the cylinder. The stop leak actually works, and the hydraulic action feels solid and responsive. For such a small bottle, it’s pure magic in a can. I honestly didn’t expect much for the price, but this product exceeded every expectation. It’s easy to pour, works fast, and saves you from having to rebuild or replace your jack. I’ll be keeping a bottle of this in the garage from now on. If your jack is leaking or losing lift, don’t waste time. Get this! It’s the best fix I’ve ever used for a hydraulic issue.

## Frequently Bought Together

- Bar's Leaks Jack Oil with Stop Leak - 12.5 oz
- 16PCS Floor Jack Repair Sealing Tool Kit,3 Ton Floor Jack O Ring Kit with Oil Filler Plug for Improved Sealing of Hydraulic Systems,Standard Car Accessories Floorr Jack Parts
- Johnsen's 5594 Hydraulic Jack Oil - 32 oz.

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-24*