Search  for anything...

American Standard Champion 2-Piece Toilet Parts Tank-to-Bowl Coupling Kit, Toilet Repair Kit

  • Based on 1,573 reviews
Condition: New
Checking for the best price...
$16.98 Why this price?
Save $6.42 was $23.40

Buy Now, Pay Later


As low as $4 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 3 left in stock, order soon!
Fulfilled by Amazon

Arrives Thursday, Sep 3
Order within 13 hours and 7 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Size: 1 Pack


Features

  • Genuine OEM Quality & Durable Construction - American Standard toilet parts offer durable construction
  • Reliable Tank Performance - Toilet tank parts with reliable performance
  • Quick DIY Installation and Effortless Repair - Easy to install toilet repair parts
  • Precision Compatibility for Champion 4 Systems - Check repair part information for compatibility
  • Tank to Bowl Coupling Kit - Includes corrosion-resistant bolts

Description

The Champion 2-Piece Toilet Tank to Bowl Coupling Kit (Blister Pack 100) from American Standard is designed for plumbers, contractors, and facility managers who need reliable, bulk-ready toilet coupling kit components for any plumbing project. Each kit of toilet replacement parts includes 100 coupling sets to securely connect toilet tanks to bowls, ensuring a watertight, dependable seal with built-in leak prevention for high-efficiency and long-lasting performance. Ideal for commercial or high-volume projects, this replacement parts kit reduces installation time and potential leak points while providing consistent quality for every standard Champion 2-piece toilet. From the Manufacturer Durable, reliable, quality engineering and construction. American Standard products are designed for your busy lifestyle. Parts, hardware, and components are engineered to enhance the usage of your American Standard products. About American Standard Brands - Great performance and great looks meet in our complete line of fixtures and faucets for bath and kitchen. Performance and reliability. Coordinated collections. Ingenious features. American Standard is Style that Works Better everyday.

Manufacturer: ‎American Standard


Part Number: ‎738756-0070A


Item Weight: ‎5.9 ounces


Product Dimensions: ‎7.5 x 1 x 12.91 inches


Item model number: ‎738756-0070A


Size: ‎1 Pack


Color: ‎No Finish


Material: ‎Rubber


Shape: ‎Round


Item Package Quantity: ‎1


Number Of Pieces: ‎2


Measurement System: ‎US


Included Components: ‎1 Universal Gasket, 2 hex nuts with washers, 2 coupling bolts & 2 tank grommets


Warranty Description: ‎“*1 year Limited warranty from date of purchase”


Date First Available: April 14, 2010


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Sep 3

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Leak free so far
Kit 241 Tank to Bowl Kit, American Standard 738756-0070A, worked well putting Am Std Toilet Model 4266 back together after replacing the flush valve assemble. The kit was delivered without the two nuts with captive washers. I found a phone number for Am Std 1-800-442-1902 and told them the problem. I only waited on hold about 5 or 10 minutes and a knowledgeable lady at Am Std agreed to send out the missing parts and because of my tight schedule agreed to expedite them. It was a refreshing, pain-free telephone experience and makes me want to use American Standard again. The rubber 'grommets' are used like washers that go in from the inside of the tank. I stuck the grommets through the tank holes first, then poked the bolts through them. The rubber grommets expand when the bolt pokes through them and I didn't use any plumbers putty like some videos recommend. After tightening the nuts just the right amount - not too lose - not too tight - the bottom of the tank was leak-free. The nuts take a regular deep well 1/2 inch socket and you need an extension on that for the 4266 tank. Working alone, I wanted to make sure I got the bolts in the tank lined up with the holes in the bowl when I sat the tank down on the bowl. I marked some wall tape with visual aids = line up marks and a 'distance from the wall' tape loop and that worked well for hitting the holes. ... show more
Reviewed in the United States on June 6, 2020 by Sam

  • Champion 4149A Tank
American Standard Champion 8 year old 1.6 flapper -- 4149A Tank. This green tank to bowl gasket was an exact match to the old one which was a 4 inch. Fit over the new valve -- a large 4 inch nut. The only issue I had was tightening the bolts to much on one side and it leaked. Saw a larger gap on one side of bowl -- loosened the nuts and started again turning them one at a time so the tank sat evenly on the bowl. Also, when positioning the flush valve be sure to set it up so the fill tube is not over the one bolt. My issue was not repairing the handle sooner as it had slipped outwards and was pulling on the chain/valve flapper at an angle and wore it out and it quit working one morning. The older 1.6 (more water) Champions can also use the 1.28 flush valve (less water). There is a Champion Kit that includes both flush valves -- the 1.6 has a dome shape piece under/bottom the flapper lid valve. ... show more
Reviewed in the United States on August 12, 2026 by Paul

  • Best bet for an American Standard toilet tank
Purchased this seal kit for an American Standard toilet tank-to-base when the generic seal I bought from a big box store leaked almost immediately. This seal is made to fit the large plastic nut that holds the flush valve in the bottom of the tank. The generic seal didn't have the spot for the nut actually embossed on the inside like the A/S one did. I think that made the difference when I put the correct one in by fitting the nut very closely. Some YouTube videos that I watched to try to figure out why my first try leaked mentioned that it's really best to use the actual A/S seal instead of the replacement ones sold. It worked for me... not leaking after 3 weeks. I wasn't sure about the seals that went on the tank bolts but they also worked just fine. It can be a little difficult to get the nuts started in the position you need to be in to be able to see what you're doing. Took a few trys but eventually I got them on. Definitely need a deep socket to get them evenly tight. ... show more
Reviewed in the United States on July 7, 2024 by Bob V

  • Worked Great BUT needs instructions
This worked like a charm YET I gave it only 4 stars, why? The instructions STINK. There other products have great instructions such that I was able to replace everything easily. This was so bad I searched the web then had to call them to figure it out. It took them 15+ minutes to look it up and tell me how to install. As an aside, the plumber did not use the original parts so I could not reverse engineer so good instructions are key. The TRICK is it comes with 2 different rubber washers. Where do they go? The traditional washer goes on the bottom to keep the nut from touching the porcelain (thereby protecting it from cracking). The non traditional washer is the open that has is long (it is ~3/4 inch). It goes in the tank first then you take the long screw and push it through. Once all done works like a charm. No more leaks for us! Also, when I called AS they were very helpful and gave great guidance (I called 3 times about what parts to buy, etc). ... show more
Reviewed in the United States on June 1, 2016 by Beany from Brooklyn

  • Great product!
Perfect fit.
Reviewed in the United States on August 15, 2026 by Rolan D.

  • Better quality than universal parts by other manufacturers I examined
Exactly what is needed when reassembling an American Standard Champion 4 2-piece toilet. The tank must be removed when replacing the Flush Valve. I would advise replacing the seals and fastening hardware that comes in this kit as the old ones will have deteriorated and you don't want to do the job over again. Nice kit. It was easy to replace, a perfect fit, and sealed perfectly. ... show more
Reviewed in the United States on February 15, 2025 by Clarence Stone

  • great product
works exactly as expected
Reviewed in the United States on October 13, 2025 by Connor

  • Perfect fit
Perfect fit, no leakage, all hardware included.
Reviewed in the United States on February 17, 2026 by Jim

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...