W11504423 - Genuine OEM Whirlpool Refrigerator Lokring Tube Connection Coupler, 0.313" - 0.079" Aluminum Reducer

W11504423 – Genuine OEM Whirlpool Refrigerator Lokring Tube Connection Coupler (0.313" – 0.079" Aluminum Reducer)

Authoritative Overview

The W11504423 Genuine OEM Whirlpool Refrigerator Lokring Tube Connection Coupler is a precision-engineered refrigerator sealed-system component designed to connect refrigerant lines of different diameters (3/8" to 0.079") using Lokring compression technology. This is a Genuine OEM Whirlpool part, ensuring exact specifications, material compatibility, and leak-free performance.

Used across major brands including Whirlpool, Maytag, KitchenAid, Amana, and others, this coupler is essential in refrigeration system repairs, particularly when joining or adapting tubing without brazing. Available from Appliance Kingdom in Canada, it ships quickly nationwide to support technicians and appliance professionals.

If your refrigerator is experiencing cooling inconsistencies or sealed-system leaks, replacing a faulty Lokring coupler like this one is often a critical step in restoring proper operation.

Function & Importance

This Lokring coupler is used in the sealed refrigerant system of a refrigerator to:

• Connect two refrigerant tubes of different diameters

• Create a secure, permanent, leak-proof seal using compression

• Enable repairs without traditional brazing (ideal for sensitive or restricted areas)

Because it operates within a pressurized refrigerant circuit, precision is essential. OEM-grade Lokring couplers ensure:

• Proper compression sealing

• Compatibility with refrigerant and tubing materials

• Long-term durability under pressure and temperature fluctuations

A failed or improperly installed coupler can lead to refrigerant leaks, loss of cooling, and compressor strain.

Common Symptoms Indicating Replacement

Failure of this component in a refrigerator sealed system may result in:

• Refrigerator or freezer not cooling properly

• System losing refrigerant charge

• Visible oil residue or signs of leakage at tubing joints

• Compressor running continuously or failing to start

• Temperature fluctuations (too warm or too cold)

These are common sealed-system issues, and replacing a damaged Lokring coupler can often restore proper refrigerant flow and cooling performance.

Compatibility Guidance

• Designed specifically for refrigerator sealed-system repairs

• Compatible with multiple brands including Whirlpool, Maytag, KitchenAid, Amana, and others

• Must match exact tubing sizes (0.313" to 0.079")

Always verify your refrigerator model number and system specifications before ordering to ensure proper fit and safe operation.

Replaces Part Numbers

(Verified from authoritative sources)

• W10890290

• W10897193

• W11313676

• W11313677

Key Features & Benefits

• Genuine OEM Whirlpool sealed-system component

• Lokring compression technology – no brazing required

• Precision aluminum reducer (3/8" to 0.079")

• Engineered for leak-free refrigerant connections

• Supports safe and efficient refrigerator operation

• Ideal for professional technicians and advanced repair applications

Installation Overview

Installation Difficulty: Advanced (Professional Recommended)

• Requires Lokring installation tools and proper technique

• Tubing must be clean, properly cut, and aligned

• Coupler is compressed to create a permanent seal

Because this involves the sealed refrigerant system, installation should typically be handled by a certified appliance or HVAC technician.

Canada-Wide Availability & Trusted Supply

Appliance Kingdom supplies this OEM part directly within Canada, offering:

• Fast shipping across all provinces

• Reliable sourcing from authorized suppliers

• Compatibility with Canadian appliance standards

Buyer Confidence & Assurance

• 100% Genuine OEM Whirlpool part

• Designed for exact fit and long-term reliability

• Helps restore proper sealed-system performance

• Expert support available to confirm compatibility before purchase