Whirlpool Refrigerator Not Cooling After Sealed System Repair? Lokring Tube Coupler W11506635 – Seal Refrigerant Lines Without Brazing

The W11506635 Lokring tube coupler is the OEM-approved no-braze solution for repairing or splicing refrigerant lines in Whirlpool, KitchenAid, and Maytag refrigerators — used by technicians to seal refrigerant line leaks or reconnect cut lines without a torch or brazing equipment. In Whirlpool-built refrigerators, refrigerant line leaks at joints, pinhole corrosion points, or damaged sections cause gradual or complete loss of cooling. The Lokring SAV-4 coupler (W11506635) is a press-fit mechanical coupling that creates a leak-free, permanent seal on copper or aluminum refrigerant tubing without heat — making it the correct OEM repair method for sealed system line repairs in the field. ⚡ Required OEM repair component for refrigerant line splice repairs on Whirlpool-built refrigerators. Part W11506635 supersedes W10592358, W10913906, and W11033348 and is the current OEM-approved Lokring coupler for these models.

❓ Is This the Right Part?

This is the correct part if ALL of the following are true:

• ✔ A refrigerant line leak has been confirmed by a licensed technician
• ✔ The leak is at a joint, pinhole, or damaged section of copper/aluminum tubing
• ✔ A no-braze press-fit repair method is required or preferred
• ✔ The refrigerator model is confirmed compatible with the SAV-4 Lokring coupler size

Not sure? Send us your model number — we’ll confirm before you order.

🔧 Common Use Cases

• Refrigerant line leak confirmed at a joint or pinhole in the evaporator or condenser tubing
• Refrigerant line damaged during service or by rodent activity
• Technician requires a no-braze splice repair on copper or aluminum refrigerant tubing
• Refrigerator gradually lost cooling over weeks or months (slow refrigerant leak)
• Refrigerator stopped cooling completely after a sealed system event

✔ If these conditions match, W11506635 is the correct OEM coupler for the repair.

✔ Lokring press-fit couplers create a permanent, leak-free seal without brazing equipment.

📦 Part Details

• Part Number: W11506635
• Also Listed As: SAV-4, SAV4, Lokring Tube Coupler
• Type: Refrigerant Line Tube Coupler — OEM Whirlpool Lokring replacement
• Replaces: W10592358, W10913906, W11033348, SAV4, SAV-4
• Brands: Whirlpool, KitchenAid, Maytag, Amana

⚙️ Installation

Skill Level: Advanced — Licensed technician required. Sealed system work requires EPA/TSSA certification. Recover refrigerant before opening the sealed system. Cut out the damaged tubing section, deburr and clean the tube ends, slide W11506635 onto the tubing, and press to seat using the Lokring installation tool. Replace the filter drier, evacuate the system to deep vacuum, and recharge with the correct refrigerant type and weight per the model data plate.

✓ Compatible Models

Confirmed compatible with ABB1921BRB/M/W03, ABB1924BRB/M/W03, ABB2224BRB/M/W03, KRBL102/109ESS03, KRBR102/109ESS03, KRFF302EBS03/04, KRFF302ESS04/05, KRFF302EWH04/05, KRFF305EBS04/05, KRFF305ESS05/06, KRFF305EWH05/06, MBB1957FEW03, MBF1958FEZ06, MBF2258FEZ06, MBL1957FEZ07, MBR1957FEZ06, MFF2258FEZ06/07, MFF2558FEZ07/08, WRB119WFBB/M/W03, WRB322DMBB/M/W03, WRB322DMHV03, WRB329DFBB/W03, WRB329DMBB/M/W03, WRB329LFBM03, WRB329RFBM03, WRF532SMHB/V/W03, WRF532SMHZ05/06, WRF532SNHV/W03/04, WRF532SNHZ05/06, WRF535SMHB/W04/05, WRF535SMHZ06/07, WRF535SWHB/V/W04/05, WRF535SWHZ06/07, WRFA32SMHZ05/06, WRFA35SWHZ06/07, WRQA59CNKZ. Contact us to verify your model number before ordering.

💡 Pro Tip