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Sea Foam Trans Tune Transmission Lubricant 16 oz

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

A simple 16oz additive that helps keep your automatic transmission's seals conditioned and fluid working right.
Sea Foam MPN TT16 In Stock & Ready to Ship
$179.88
$14.99 each · sold by the case of 12 Free shipping on orders over $149
Ships within 24 hours · most orders arrive in about 2 business days
Cases of 12 · Order in multiples of 12
Ships free on orders over $149 $14.99 flat shipping until your order reaches $149.

Sold by the Case

$179.88 per case of 12

Save $27.00 on orders $75+. Spend $75 or more to unlock 15% off every case — applied automatically at checkout. Free shipping at $149.

Ships as a complete case of 12. Free shipping on orders $149 and up.

About Product Overview

Sea Foam Trans Tune is a transmission lubricant additive made for drivers who want to keep their automatic transmission running smoothly between fluid changes. It pours right into your transmission fluid to help condition seals and keep things lubricated, making it a simple addition to routine auto maintenance. The 16oz bottle is sized for a single treatment, and like the rest of the Sea Foam lineup, it's manufactured in the USA.

  • Brand: Sea Foam, Trans Tune sub-brand
  • Product type: Transmission lubricant additive
  • Container size: 16 oz bottle
  • Country of origin: USA

The Details Specifications

Ships Ground Travels by ground for safe handling — common for items with a lithium battery, aerosol, or liquid inside. Nothing extra to do on your end; it simply ships by truck instead of by air.
Brand Sea Foam
Model / MPN TT16
UPC 018812000026
Weight 13 lbs
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
Price check

Go ahead. Check.

You're going to price-check us against Amazon, Home Depot, and Lowe's. Everybody does. Good — open all three tabs. We'll wait. Then look hard at what you're actually being handed over there.

On Amazon, start with these four questions before you click buy.

01

Who's actually selling it

The brand name is on the listing. A different company is in the seller field. Those aren't the same thing, and the second one is who you're buying from.

02

Whether the warranty survives

Most manufacturers only honor a warranty when the unit came through an authorized dealer. We're authorized for Sea Foam. A third-party marketplace seller usually isn't.

03

Where the box came from

Gray-market stock, returns repackaged as new, and outright fakes move through marketplaces constantly. It all looks identical in the photo. It stops looking identical when it fails.

04

Who you call when it breaks

Ours is a phone number with a person behind it who has held this product. M–F, 6 AM – 5 PM Pacific. (866) 469-8556

The big boxes don't care if your hardware store survives.

Amazon, Home Depot, and Lowe's are built to pull every hardware dollar out of your town. When the local shop can't keep the lights on, the counter where somebody actually knew which part you needed goes with it. We're built the other way: real brands so you're never stuck on a marketplace, and a straight answer to buy it down the street when that's the better call. Support independent hardware — it doesn't restock itself.

Why we tell you to shop local
Authorized dealer · Sea Foam

Or skip the tabs entirely and buy it down the street. Find a store near you →

Shop Local · Support Independent

Every order helps keep your local hardware store on the corner.

Why we built NHG
You might find it for less locally. Independent retailers often offer competitive pricing — some products are even cheaper in-store than online.
Real expert advice — not search results. Independent hardware staff know their inventory and the local conditions you're working in.
Keep the neighborhood working. Every dollar spent at an independent retailer returns roughly 3x more to your local economy than at a national chain.

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