Stop Transmission Leaks and Restore Smooth Shifting
Protect your transmission from leaks and costly repairs with Justice Brothers Premium Trans Stop-Leak, now available at NorCal Diesel Performance. Specially formulated to recondition old, dry seals and prevent future leaks, this advanced additive is trusted by professionals and DIYers for its proven ability to keep transmissions running cooler, smoother, and longer.
Key Features & Benefits
Stops & Prevents Transmission Seal Leaks: Reconditions old, dry, or shrunken transmission seals to stop leaks and prevent future fluid loss.
Reduces Friction & Wear: Minimizes internal friction and wear, helping your transmission last longer and operate more efficiently.
Cleans & Prevents Harmful Deposits: Dissolves and prevents the formation of sludge and varnish, keeping your transmission clean and responsive.
Smooths Rough Shifting: Helps restore smooth, reliable shifting in both automatic and manual transmissions.
Helps Transmission Run Cooler: Improved lubrication and reduced friction help lower operating temperatures, reducing the risk of overheating.
Compatible with All Transmission Fluids: Mixes with all factory-approved transmission fluids for easy, worry-free use in virtually any vehicle.
How to Use
Check the transmission fluid level at normal operating temperature (see your owner's manual for instructions).
Add the entire contents of one can to restore fluid to the correct level—do not overfill.
Use one can per 10 to 12 quarts of transmission fluid.
Most leaks stop within 300 miles or 5 days of normal driving.
If leaks persist after treatment, mechanical repair may be necessary.
Product Details
| Attribute | Value |
|---|---|
| Part Number | TSL-5 |
| UPC | 077445000056 |
| Size | 1 can (for 10–12 quarts) |
| Shipping Weight | 1.0 lbs |
Vehicle Compatibility
Suitable for all automatic and manual transmissions in cars, trucks, SUVs, and heavy-duty vehicles.
Why Choose Justice Brothers Premium Trans Stop-Leak?
Justice Brothers is a trusted name in automotive maintenance, known for nearly 90 years of innovation and quality. Their Premium Trans Stop-Leak is relied on by mechanics and drivers alike for its consistent results in stopping leaks, smoothing shifting, and extending transmission life. Customers have reported smoother operation and significant savings on transmission repairs after using this product.
Order with Confidence
Fast, flat-rate shipping
30-day returns
Seal leaks, smooth shifting, and protect your transmission—order Justice Brothers Premium Trans Stop-Leak today from NorCal Diesel Performance!
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