Sioux Chief 881-54 4" Mechanic...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$81.64
Sioux Chief 881-54 4" Mechanical Test Plug for Cast Iron and Plastic Pipe

Sioux Chief 881-54 4" Mechanical Test Plug for Cast Iron and Plastic Pipe

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Model: 881-54

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

$81.64
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Sioux Chief 881-54 4" Mechanical Test Plug

The Sioux Chief 881-54 is a 4" mechanical test plug built for pressure-testing cast iron and plastic pipe waste systems without the need for an air compressor or pump. This completely mechanical device seats into the pipe and seals the line for DWV testing, holding pressure equivalent to 14 floors in high-rise construction applications. Because it works entirely on mechanical leverage rather than pneumatic pressure, the 881-54 installs and removes quickly with no couplings to fit or remove, saving time on rough-in test-out.

Key Features

  • Trade Size: 4" test plug sized for cast iron and plastic drain, waste, and vent (DWV) pipe.
  • Mechanical Operation: Completely mechanical design requires no air compressor or pump to set or release the seal.
  • High-Rise Rated: Engineered to hold pressure equivalent to 14 floors, making it suitable for high-rise construction testing.
  • Multi-Material Compatibility: Designed to work on cast iron as well as plastic pipe waste systems.
  • Fast Install/Removal: No couplings to install and remove, allowing quicker test setup and teardown.
  • Serviceable Design: Replacement seals are available to extend the working life of the tool.
  • Charlotte Pipe Tee Retrofit Note: 6" and 8" tools must be retrofitted with the included legs for use with Charlotte pipe tees (reference only; this listing is the 4" size).
  • Temperature Limitation: Not recommended for installations where temperatures are below 32°F.

Technical Specifications

  • Country of Origin: United States
  • Packaging: 1 EA

Typical Applications

  • Pressure Testing Cast Iron DWV Pipe
  • Pressure Testing Plastic Waste Pipe Systems
  • High-Rise Construction Rough-In Testing
  • Plumbing Contractor Test-Out Procedures
  • New Construction Drain, Waste, and Vent Testing

Why Sioux Chief?

Sioux Chief builds the 881-54 as a fully mechanical test plug so plumbing contractors can pressure-test DWV runs on cast iron or plastic pipe without hauling compressors or pumps to the jobsite. With a design rated to hold pressure through 14 floors and serviceable replacement seals, the 881-54 is built for repeated use across high-rise and standard construction test-out work.

Manufacturer Resources

Spec Sheet

Product Specs

Product Type:
Test Plug
Country of Origin:
United States
Department:
Plumbing
Product Group:
Rough-In and Supports
Product Subgroup:
Fittings and Valves
Product Size:
4"

Sioux Chief 881-54 – Frequently Asked Questions

1) Will the Sioux Chief 881-54 test plug work in both cast iron and PVC DWV pipe?
Yes. The 881-54 is a 4 inch mechanical test plug made to seal both cast iron and plastic drain, waste and vent pipe, so the same tool covers a cast iron stack and a PVC branch on the same job. It seats inside the pipe and seals the line mechanically, so you don't swap tools when the material changes.
2) Do I need an air compressor to set the Sioux Chief 881-54 test plug?
No. The 881-54 is completely mechanical, so it sets and releases on leverage alone with no compressor or pump needed on site. That is the main reason crews pick it over an inflatable bladder plug, which needs air and a gauge to hold.
3) How much head pressure will a 4 inch mechanical test plug hold on a high-rise stack?
The Sioux Chief 881-54 is rated to hold pressure equivalent to 14 floors of water column, which is what makes it usable for high-rise rough-in testing rather than just single-story branch work. For stacks taller than that, the test has to be broken into sections.
4) Can I use the 881-54 test plug on a cold jobsite in winter?
Not below freezing. The 881-54 is not recommended where temperatures are below 32 degrees F, so an unheated winter shell or an exterior stack is outside its working range. Test when the space is above freezing, or the seal will not perform as rated.
5) Is the Sioux Chief 881-54 reusable, and can the seal be replaced when it wears out?
It is built as a reusable tool, not a throwaway plug. Replacement seals are available for the 881-54, so when the rubber takes a set or gets nicked from repeated test-outs you rebuild the tool instead of buying another one. That matters for plumbing contractors running test-out on floor after floor.
6) Does the 881-54 need couplings or a special fitting to install?
No couplings at all. The 881-54 seats directly into the 4 inch pipe end and seals, so there is nothing to band on and cut off afterward. Set it, run the test, break it loose and pull it, which is a lot faster than a glue-in cap you have to saw out.
7) Do the 881 mechanical plugs need extra legs for Charlotte pipe tees?
That requirement applies to the 6 inch and 8 inch tools, which must be retrofitted with their included legs for use with Charlotte pipe tees. The 881-54 is the 4 inch size, so that retrofit note is not a step for this one.
8) What part number do I order for the 4 inch Sioux Chief mechanical test plug, and how is it packed?
Order Sioux Chief part 881-54 for the 4 inch mechanical test plug. It ships one each, and it is made in the United States.
How fast can I get the Sioux Chief 881-54 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 881-54 come with a warranty?
Absolutely. The Sioux Chief 881-54 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 881-54?
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 881-54 from ZenSupply?
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