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Item #:
86149932
Bar's Leaks 1400 High Mileage Transmission Repair, Automotive Additive, 16 oz
89% of respondents would recommend this to a friend
Item #:
86149932
LSL 640
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
In stock
Imported from USA store
QTY:
Only 99 items left in stock.
Order now and get it around Sunday, September 20
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Bar’s Leaks® High Mileage Automatic Transmission Repair reduces rough shifting, friction, and slip, while controlling temperature and repairing shudder, chatter, and whining. Premium high mileage formula restores transmission performance and saves on costly transmission / transaxle repairs.
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What Stands Out
High Mileage Formula
Specifically designed for vehicles with high mileage, this additive effectively seals leaks and reduces friction, ensuring smoother transmission performance and extending the life of older transmissions.
Quick Action
Bars Leaks 1400 works quickly, providing immediate relief from transmission issues. It penetrates and seals leaks in less than 20 minutes, saving time and costly repairs for vehicle owners.
Versatile Compatibility
Compatible with all automatic transmission fluids, this additive is suitable for a wide range of vehicles. Users can apply it without worrying about fluid type, enhancing convenience and usability.
Product Details
- Bar's Leaks® High Mileage Automatic Transmission Repair is designed to improve performance in high-mileage vehicles by reducing rough shifting, friction, and slipping. It also helps control temperature and fixes issues like shuddering, chatter, and whining. This formula ensures smoother operation and helps extend the life of your transmission, saving you from expensive repairs. Note that it is not suitable for CVT systems. It works with synthetic transmission fluid and is a universal solution for most vehicles.
| Compatible cars | Universal |
| Product net content parent | 16.9 Fluid Ounces |
| Size | 16.9 oz |
| Vehicle fitment type | Universal |
| Model | 1400 |
| Features | Advanced Additives, Easy Installation, Universal, Transmission Treatment |
| Vehicle type | Car, Bus, CUV, Crossover & Minivan, Light Truck, Pickup Truck, Recreational Vehicle, Tractor, Truck |
| Brand | Bar's Leaks |
| Item Weight | 1.2 lbs (540 grams) |
Who Should Buy?
-
High Mileage Vehicles
Ideal for cars with over 100,000 miles needing preventive maintenance to extend transmission life.
-
Minor Transmission Issues
Effective for vehicles experiencing small leaks or slipping gears, providing a temporary fix.
-
DIY Mechanics
Great for home mechanics looking for a cost-effective solution to minor transmission problems without professional help.
-
Severe Damage
Not suitable for transmissions with major failures, as it can't replace or repair significant mechanical issues.
Product Description
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Customer Questions & Answers
-
Question:
How long does it take to see results after using this product?
Answer: Results will be immediate or noticeable within two days or 100 miles of driving. -
Question:
What should be done if the transmission has seriously damaged components?
Answer: A second treatment may be required. It is suggested to change the fluid and filter and add a second application of Transmission Repair. -
Question:
How much fluid does one bottle of this product treat?
Answer: One bottle treats 8 to 12 quarts of fluid.
Bar's Leaks Automatic Transmission Fluid Editorial Review
Bar's Leaks 1400 High Mileage Transmission Repair is a universal automotive additive that comes in a convenient 16.9 oz bottle. This product features advanced additives specifically designed for easy installation, making it a straightforward solution for various vehicle types including cars, buses, and light trucks. Users appreciate how it can help with transmission treatment, potentially extending the lifespan of their vehicles. The versatility of this product means it caters to a wide range of vehicles, providing an accessible fix for transmission issues and helping maintain high mileage performance. Customers have noted positive experiences with its effectiveness in treating worn transmissions, making it a notable choice for car enthusiasts looking for reliable solutions.
Customer Reviews & Ratings
362 customers ratings
-
5 Star
75%
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4 Star
15%
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3 Star
3%
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2 Star
0%
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1 Star
4%
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Pros
- Universal fit for multiple vehicle types
- Advanced additives for effective transmission care
- Easy installation process
- Perfect for cars, light trucks, and more
Cons
- Size may be too large for occasional users
Platform Trust & Buyer Confidence
JK
Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
AG
Anke
Verified buyer
“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
10 September 2026 · via Trustpilot
H
Hazel
Verified buyer
“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
10 September 2026 · via Trustpilot
O
Opaleye
Verified buyer
“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
AC
Adele
Verified buyer
“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
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LSL 640
Order now and get it around Sunday, September 20
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Only 99 items left in stock.
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PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
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Fastest cross-border delivery
Features & Benefits
- Reduces rough shifting, friction, and slip
- Controls temperature in the transmission
- Repairs shudder, chatter, and whining
- Restores transmission performance
- Saves on costly transmission repairs
- Not suitable for CVT systems
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