American Standard 4019N Manual: A Comprehensive Guide
This manual provides detailed instructions for the American Standard 4019N toilet tank, covering installation, troubleshooting, maintenance, and parts information for optimal performance.
The American Standard 4019N Cadet 3 toilet tank represents a significant advancement in bathroom fixture technology, designed for both efficiency and reliability. This manual serves as a comprehensive resource for owners and installers, detailing every aspect of this popular model – from initial setup to long-term maintenance. It’s a single flush toilet, utilizing 1.28 gallons per flush (GPF), balancing water conservation with powerful waste removal.
Available through retailers like The Home Depot and Ferguson Home, the 4019N comes in various configurations, including elongated and round front bowl compatibility. Understanding its features and proper installation is crucial for maximizing its performance and lifespan. This guide will walk you through each step, ensuring a smooth and trouble-free experience. We will cover parts identification, installation procedures, common issues, and warranty details.
What is the American Standard 4019N Toilet Tank?
The American Standard 4019N is a highly-regarded, single-flush toilet tank, specifically designed as a replacement or upgrade for existing toilets. It’s part of the Cadet 3 series, known for its improved flushing performance and clog resistance. Available in a clean, white finish, it’s compatible with both elongated and round front bowls, offering versatility for different bathroom layouts.
This tank isn’t a complete toilet; it’s only the tank, requiring a separate bowl. Models like the 4019.101N.020 (available at The Home Depot) are popular choices. It utilizes a 3-inch flush valve (part number 738921-101.0070A) and a 1.28 GPF flushing system, promoting water conservation. The Cadet 3 flushing system is engineered for a powerful, yet efficient flush, minimizing the need for multiple flushes. It’s a durable and reliable option for any bathroom.
Key Features of the Cadet 3 Flushing System
The Cadet 3 flushing system, integral to the American Standard 4019N tank, is engineered for superior performance and reliability. Its core strength lies in the powerful, yet water-conserving, 1.28 GPF (gallons per flush) design. This system minimizes clogs through a fully glazed 3-inch flush valve, ensuring smooth waste removal.
A key component is the chemical-resistant flapper (part of the 738921-101.0070A flush valve kit), designed for longevity and consistent sealing. The system’s design focuses on maximizing water flow and creating a strong siphon jet, effectively clearing the bowl with each flush. This results in fewer double flushes, saving water and enhancing user satisfaction. It’s a smarter design for higher performance, offering a balance of power and efficiency.

Installation Guide
Proper installation of the American Standard 4019N tank requires careful attention to detail, ensuring a secure connection and optimal flushing performance for years to come.
Unboxing and Parts Checklist
Upon receiving your American Standard 4019N toilet tank, carefully inspect the packaging for any signs of damage during shipping. Once opened, verify that all components are present before proceeding with installation. The box should contain the toilet tank itself, the flush valve assembly (often including the flapper – part number 738921-101.0070A), the tank cover, mounting hardware (bolts and washers), and potentially a supply line connector.
A detailed parts list is crucial; compare the contents against the diagram included in the packaging. Missing parts can delay installation. Ensure the tank is free of any manufacturing debris. Retain the packaging and documentation for potential warranty claims or future reference. Carefully check each component for defects before beginning the installation process, as damage discovered early can save significant time and effort.
Tools Required for Installation
Successfully installing your American Standard 4019N toilet tank requires a few essential tools. A standard adjustable wrench is vital for tightening supply line connections and mounting bolts. A screwdriver (both Phillips and flathead) will be needed for various assembly steps, including securing the flush valve. A level is crucial to ensure the tank sits evenly on the bowl, preventing leaks and instability.
Additionally, a putty knife can be helpful for applying plumber’s putty if needed. Rubber gloves are recommended for hygiene. Depending on your existing plumbing, you might also require a basin wrench for accessing hard-to-reach nuts. Having these tools readily available will streamline the installation process and ensure a secure, leak-free connection.
Step-by-Step Installation Process
Begin by carefully positioning the tank onto the bowl, ensuring the mounting holes align. Insert the tank-to-bowl bolts with rubber washers, and tighten them evenly – avoid over-tightening to prevent cracking. Next, install the flush valve, securing it firmly to the tank’s bottom. Attach the flapper chain to the flush lever arm, ensuring proper chain length for a complete flush.
Connect the water supply line to the tank, again using an adjustable wrench and being mindful of tightness. Slowly turn on the water supply, checking for any leaks around the connections. Finally, adjust the water level within the tank to the recommended height for optimal flushing performance.
Connecting the Tank to the Bowl
Carefully align the American Standard 4019N tank with the bowl, ensuring the mounting holes are perfectly matched. Insert the tank-to-bowl bolts, accompanied by the provided rubber washers, through the aligned holes. These washers create a watertight seal, preventing leaks between the tank and bowl.
Hand-tighten the bolts initially, then use an adjustable wrench to gradually tighten them in an alternating pattern. This ensures even pressure distribution and prevents potential cracking of the porcelain. Avoid excessive force during tightening; snug is sufficient. A properly connected tank will sit firmly and level on the bowl, ready for the next installation steps.
Installing the Flush Valve
Begin by carefully inserting the American Standard flush valve (part number 738921-101.0070A is compatible) into the flush opening on the underside of the tank. Ensure the valve’s rubber gasket forms a complete and secure seal against the tank’s surface. This gasket is crucial for preventing water leakage.
Next, attach the flush valve mounting nut from beneath the tank, tightening it by hand initially. Then, use an adjustable wrench to tighten the nut further, but avoid over-tightening, which could damage the tank or valve. Finally, connect the flapper chain to the flush lever arm, ensuring it has a slight slack for proper operation.

Attaching the Supply Line
Carefully connect the water supply line to the fill valve at the base of the toilet tank. Hand-tighten the connection initially, ensuring the rubber washer is properly seated within the supply line fitting. This prevents leaks during operation.
Following hand-tightening, use an adjustable wrench to gently tighten the connection another quarter to half turn. Avoid excessive force, as this can damage the fill valve or supply line. Double-check the connection for any signs of leakage before proceeding.
Once secure, slowly turn on the water supply valve to test the connection and verify there are no drips or leaks.

Troubleshooting Common Issues
This section details solutions for frequent problems like a running toilet, weak flushing, leaks, and flapper malfunctions, ensuring optimal performance and water conservation.
Toilet Running Constantly
A continuously running toilet often indicates a problem within the tank, wasting water and increasing bills. The most common culprit is a faulty flapper, failing to create a watertight seal over the flush valve opening. Inspect the flapper for wear, cracks, or debris, and replace it if necessary – American Standard part number 738921-101.0070A is compatible.
Another potential cause is an improperly adjusted water level. If the water level is too high, it can overflow into the overflow tube, causing a constant run. Adjust the fill valve to lower the water level. Conversely, a fill valve malfunction can also lead to continuous running. Examine the fill valve for any obstructions or damage. Finally, check the chain connecting the flush lever to the flapper; ensure it isn’t too tight or too loose, preventing a proper seal.
Weak Flush Performance
Experiencing a weak flush with your American Standard 4019N toilet suggests a restriction or issue within the flushing mechanism. Begin by verifying the water level in the tank; an insufficient water level directly impacts flushing power. Adjust the fill valve to achieve the recommended level for optimal performance. Next, inspect the rim jets around the bowl – these distribute water for a swirling action. Ensure they are clear of mineral deposits or obstructions.
A partially clogged jet can significantly reduce flushing effectiveness. The flush valve and its associated flapper are also critical. Confirm the flapper is sealing correctly and lifting fully when the flush lever is activated. A worn or damaged flapper hinders complete water release. Finally, check the siphon jet at the bottom of the bowl for any blockages, as this is essential for waste removal.
Leaking Around the Base of the Toilet
Discovering a leak around the base of your American Standard 4019N toilet is a common issue, often stemming from a compromised wax ring seal. This ring creates a watertight barrier between the toilet and the drainpipe. Begin by checking the closet bolts – these secure the toilet to the floor. Tighten them gently; overtightening can crack the porcelain. If tightening doesn’t resolve the leak, the wax ring likely needs replacement.
This requires removing the toilet, replacing the wax ring with a new one, and carefully reseating the toilet. Ensure the floor is clean and level before reinstalling. Another potential cause is a cracked or damaged flange – the fitting connecting the drainpipe to the toilet. Inspect the flange for any visible damage; repair or replacement may be necessary. Addressing this promptly prevents water damage.
Flapper Not Sealing Properly
A frequently encountered problem with the American Standard 4019N is a flapper that fails to create a tight seal, leading to a constantly running toilet. Inspect the flapper for wear and tear – cracks, warping, or deterioration of the rubber can all compromise its ability to seal. Ensure the flapper chain isn’t too short, preventing complete closure, or too long, causing it to get caught.
Adjust the chain length for optimal operation. Also, verify the flush valve seat is clean and smooth; mineral deposits or debris can obstruct a proper seal. Gently clean the seat with a non-abrasive cleaner. If the flapper is damaged, replacement is straightforward and inexpensive. The American Standard 3 in. Flush Valve with Flapper (738921-101.0070A) is a compatible option, readily available for purchase.

Maintenance and Care
Regular cleaning and timely replacement of worn parts, like the flapper, will ensure the American Standard 4019N toilet tank continues functioning efficiently.
Cleaning the Toilet Tank
Maintaining a clean toilet tank is crucial for optimal performance and longevity of your American Standard 4019N. Begin by turning off the water supply valve located near the toilet base. Flush the toilet to empty the tank as much as possible.
You can use a mild toilet bowl cleaner or a solution of equal parts white vinegar and water. Avoid abrasive cleaners, as they can damage the tank components. Gently scrub the inside of the tank with a soft brush or sponge, paying attention to areas with mineral buildup or stains.
Specifically, inspect and clean around the flush valve, fill valve, and flapper. Rinse the tank thoroughly with clean water before turning the water supply back on. Allow the tank to refill completely and check for any leaks. Regular cleaning, ideally every six months, prevents buildup and ensures efficient flushing.
Replacing the Flapper
A worn or damaged flapper is a common cause of toilet leaks and running water. To replace the flapper on your American Standard 4019N, first, turn off the water supply. Flush the toilet to empty the tank. Gently detach the old flapper from the flush valve posts – often, they simply unhook.
Ensure you have a compatible replacement flapper; the American Standard 3 in. Flush Valve with Flapper (738921-101.0070A) is designed for this tank. Attach the new flapper to the flush valve posts, ensuring it’s securely connected.
Test the new flapper by turning the water supply back on and flushing the toilet. Observe if the flapper seals properly and stops the water flow. If leaking persists, double-check the flapper’s connection and adjust the chain length for optimal performance.
Adjusting the Water Level
Proper water level adjustment is crucial for efficient flushing and preventing overflows. To adjust the water level in your American Standard 4019N tank, locate the fill valve. Most models have an adjustment screw or dial on the fill valve assembly.
Turning the screw clockwise typically lowers the water level, while counterclockwise increases it. Make small adjustments and flush the toilet after each change to observe the effect. The water level should be approximately 1 inch below the overflow tube.

Ensure the water isn’t reaching the overflow tube during the fill cycle, as this indicates the level is too high. A correctly adjusted water level optimizes flushing power and conserves water, contributing to the Cadet 3’s performance.

Parts and Compatibility
This section details compatible replacement parts for the American Standard 4019N, including flush valves (738921-101.0070A) and availability information for various models.
Compatible Flush Valves (738921-101.0070A)
The American Standard 3-inch flush valve, specifically model number 738921-101.0070A, is designed for optimal performance with the 4019N Cadet 3 toilet tank. This valve is constructed from durable plastic materials, ensuring longevity and resistance to common chemicals found in household cleaning products. It features a compatible flapper, crucial for creating a watertight seal and efficient flushing.
When replacing a flush valve, verifying the model number is essential to guarantee proper fit and function. The 738921-101.0070A valve is specifically engineered for elongated and round front bowl configurations commonly found with the 4019N tank. Installation is relatively straightforward, making it a suitable DIY project for homeowners comfortable with basic plumbing tasks. Using a non-compatible valve can lead to leaks, reduced flushing power, or even damage to the tank itself.
Replacement Parts Availability
Finding replacement parts for the American Standard 4019N toilet tank is generally straightforward, thanks to the brand’s widespread recognition and established distribution network. Key components like flappers, flush valves (738921-101.0070A), fill valves, and tank-to-bowl hardware are readily available at major home improvement retailers such as The Home Depot and Ferguson Home.
Online marketplaces, including the official American Standard website and platforms like Amazon, also offer a comprehensive selection of parts. When ordering, it’s crucial to verify the specific model number (e.g., 4019.101N.020, 4019.016.178) to ensure compatibility. Many retailers provide detailed diagrams and parts lists to aid in identification. Generic replacement parts may fit, but using genuine American Standard components is recommended for optimal performance and warranty validity.
Identifying Different 4019N Models (4019.101N.020, 4019.016.178)
The American Standard 4019N series encompasses several distinct models, primarily differentiated by finish and specific features. Common model numbers include 4019.101N.020 and 4019.016.178, both representing Cadet 3 1.28 GPF toilet tanks in white. The 4019.101N.020 is frequently sold as a tank-only replacement, offering a smarter design for higher performance and fewer clogs.
The 4019.016.178, available at Ferguson Home, is another popular variant within the series. While functionally similar, subtle variations in manufacturing dates or included hardware might exist. Always confirm the model number printed on the tank itself before ordering replacement parts to guarantee compatibility. Understanding these distinctions ensures you acquire the correct components for your specific 4019N toilet tank.

Technical Specifications
The American Standard 4019N boasts a 1.28 GPF water consumption rate and is compatible with both elongated and round front toilet bowls.
Dimensions and Weight
Understanding the physical specifications of the American Standard 4019N toilet tank is crucial for ensuring a proper fit and successful installation. While exact dimensions can vary slightly depending on the specific model (such as 4019.101N.020 or 4019.016.178), general guidelines are available. The tank typically measures approximately 15.5 inches in length, 7.5 inches in width, and 12.5 inches in height.
These measurements are essential when assessing space constraints within your bathroom. The weight of the tank, when empty, is around 12 pounds. However, once filled with water, the total weight will significantly increase, potentially exceeding 40 pounds.
Therefore, it’s vital to confirm your floor’s weight-bearing capacity before installation. Accurate measurements and weight considerations contribute to a stable and long-lasting toilet setup, preventing potential issues down the line. Always refer to the specific model’s documentation for precise details.
Water Consumption (1.28 GPF)
The American Standard 4019N toilet tank is engineered for water efficiency, utilizing a 1.28 gallons per flush (GPF) system. This meets EPA WaterSense criteria, promoting responsible water usage without sacrificing flushing power. Compared to older, less efficient models, this represents a significant reduction in water consumption, leading to lower utility bills and a smaller environmental footprint.
The Cadet 3 flushing system, integrated within the 4019N, is designed to maximize flush performance with this reduced water volume. This is achieved through optimized bowl design and jet technology.
Understanding the 1.28 GPF rating is important for homeowners seeking to conserve water. It’s a key feature highlighted by retailers like The Home Depot and Ferguson Home, emphasizing the tank’s eco-friendly operation. Proper adjustment of the water level within the tank ensures optimal performance at this specified GPF.
Bowl Compatibility (Elongated & Round Front)
The American Standard 4019N toilet tank demonstrates versatile compatibility, functioning effectively with both elongated and round front toilet bowls. This flexibility makes it a suitable replacement part for a wide range of existing American Standard toilets, simplifying upgrades without requiring a complete bathroom renovation. Retailers like The Home Depot and Ferguson Home confirm this broad compatibility.
When selecting a bowl to pair with the 4019N tank, consider bathroom space and personal preference. Elongated bowls offer increased comfort, while round front bowls are ideal for smaller bathrooms.

Ensure the bowl’s mounting holes align correctly with the 4019N tank’s bolt holes for a secure and leak-proof connection. Proper alignment is crucial for optimal performance and longevity. This tank is designed to work seamlessly with various bowl styles, enhancing convenience for consumers.

Warranty Information
American Standard provides a warranty for the 4019N tank, covering manufacturing defects. Details on claim procedures and warranty duration are readily available online.
American Standard Warranty Details
American Standard offers a limited lifetime warranty on porcelain components of the 4019N toilet tank, protecting against defects in material and workmanship. This coverage extends to the tank itself, ensuring long-term reliability. Mechanical components, such as the flush valve and flapper, are typically covered for a period of one year from the date of purchase.
The warranty specifically excludes damage resulting from improper installation, misuse, abuse, or failure to follow the provided care and maintenance guidelines. Normal wear and tear is also not covered under the warranty terms. To qualify for warranty service, proof of purchase, such as a receipt or invoice, is required.
It’s crucial to register your American Standard product online to streamline the warranty claim process. Detailed warranty information, including specific terms and conditions, can be found on the official American Standard website or by contacting their customer support team.
How to Claim Warranty
To initiate a warranty claim for your American Standard 4019N toilet tank, first gather your proof of purchase – a receipt or invoice detailing the date and location of the purchase is essential. Next, visit the official American Standard website and navigate to the warranty claim section. You’ll likely need to create an account or log in to an existing one.
Complete the online warranty claim form, providing accurate details about the issue you’re experiencing and uploading a clear photograph or video demonstrating the defect. American Standard may request additional information or require you to return the defective part for inspection.
Alternatively, you can contact American Standard’s customer support via phone or email to begin the claim process. Be prepared to provide your product model number and a detailed description of the problem. Keep a record of all communication and documentation related to your claim.