Sioux Chief Tank-to-Bowl Gaske...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1.69
Sioux Chief Tank-to-Bowl Gasket for Mansfield Toilets

Sioux Chief Tank-to-Bowl Gasket for Mansfield Toilets

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Model: 490-10661

In Stock (leaves warehouse same day if ordered before 3pm ET)

$1.69
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Sioux Chief Tank-to-Bowl Gasket for Mansfield Toilets

Sioux Chief offers this new-style tank-to-bowl gasket as the correct replacement seal for Mansfield-brand toilets, available as model 490-10341 and model 490-10661 to match the specific Mansfield tank assembly being serviced. Both options are engineered to seal the connection between the toilet tank and bowl, preventing leaks at the mounting interface where this hardware is a common point of failure. This gasket is the proper rough-in replacement part for plumbers and contractors working on Mansfield tank assemblies, restoring a watertight seal without the cost of replacing the entire tank or bowl. Sourced from Sioux Chief and manufactured in Taiwan, this component is packaged for trade use in cartons of 25 EA, making either model a practical stocking item for plumbing supply houses, service trucks, and property maintenance operations that regularly handle toilet tank repairs and replacements.

Key Features

  • Application-Specific Fit: Designed as the new-style gasket for Mansfield-brand toilet tanks, ensuring a correct seal at the tank-to-bowl connection for this manufacturer's design.
  • Two Model Options: Offered as model 490-10341 and model 490-10661, covering the Mansfield tank assemblies most commonly encountered in the field.
  • Replacement Seal Function: Provides a watertight seal between the toilet tank and bowl, addressing a common point of leakage in Mansfield toilet assemblies during rough-in and warranty service calls.
  • Trade Packaging: Packaged 25 EA per carton, allowing plumbing contractors and supply counters to stock this fast-moving repair part efficiently for service and maintenance work.
  • Sourced for Consistency: Manufactured in Taiwan under Sioux Chief's supply chain, delivering a consistent fit and material profile for repeat orders across both models.
  • Compact, Low-Profile Component: Sized as a standard tank gasket, with a cubic volume of approximately 0.038 cubic feet per unit, fitting standard Mansfield tank mounting hardware without added bulk.

Technical Specifications

  • Model Options: 490-10341, 490-10661
  • Country of Origin: Taiwan
  • Cubic Volume: 0.037962975 cu ft per unit
  • Packaging: 25 EA per carton

Typical Applications

  • Mansfield Toilet Tank-to-Bowl Seal Replacement
  • Residential and Commercial Restroom Service Calls
  • Plumbing Supply House Stocking for Toilet Repair Kits
  • Property Maintenance and Facilities Repair Programs
  • New Construction Toilet Tank Assembly

Why Sioux Chief?

Sioux Chief supplies this tank-to-bowl gasket, in both model 490-10341 and model 490-10661 configurations, as a dedicated, application-specific replacement part for Mansfield toilet tanks, giving plumbers and maintenance teams a reliable way to restore a tank-to-bowl seal without sourcing an entire replacement tank. Packaged 25 EA per carton and sourced through Sioux Chief's established supply chain in Taiwan, these gaskets are built for repeat stocking by contractors and supply houses that routinely service Mansfield toilet installations, giving crews confidence that the correct seal is on hand for the specific Mansfield tank model being serviced.

Manufacturer Resources

Product Specs

Product Type:
Gasket
Country of Origin:
Taiwan
Department:
Plumbing
Product Group:
Rough-In and Supports
Product Subgroup:
Parts & Accessories
Configuration:
Tank-to-Bowl Seal

Sioux Chief 490-10661 – Frequently Asked Questions

1) Which Sioux Chief tank-to-bowl gasket do I need for a Mansfield toilet, the 490-10341 or the 490-10661?
Two different Mansfield tank styles are covered. Model 490-10341 is the new-style Mansfield tank gasket. Model 490-10661 covers American Standard and Mansfield recessed tanks. Identify the tank style on the fixture you are servicing before you pick a number, because they are not interchangeable across those two tank designs.
2) Will the Sioux Chief 490-10661 gasket work on an American Standard toilet, or is it Mansfield only?
The 490-10661 is listed for American Standard and Mansfield recessed tanks, so it is not Mansfield-only. If the toilet you are working on is a Mansfield new-style tank rather than a recessed tank, the 490-10341 is the one to order.
3) Do I have to replace the whole toilet tank if it's leaking where the tank meets the bowl?
Usually not. The tank-to-bowl connection is a common failure point, and a new tank-to-bowl seal restores a watertight joint at the mounting interface without replacing the tank or bowl. Sioux Chief makes this gasket specifically for that repair on Mansfield tank assemblies.
4) Does the Sioux Chief Mansfield tank-to-bowl gasket come with tank bolts or washers?
It is the gasket only, a tank-to-bowl seal configuration. It fits standard Mansfield tank mounting hardware, so if your tank bolts or their washers are corroded you will need to source those separately as part of the repair.
5) How is the Sioux Chief 490 tank-to-bowl gasket packaged for a supply counter or service truck?
Both the 490-10341 and 490-10661 are packed 25 each per carton, which is why they stock well on a service truck or behind a supply counter where toilet tank repairs come up repeatedly.
How fast can I get the Sioux Chief 490-10661 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Sioux Chief 490-10661 come with a warranty?
Absolutely. The Sioux Chief 490-10661 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Sioux Chief 490-10661?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Sioux Chief 490-10661 from ZenSupply?
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