Refrigerator Not Staying Cold? Door Gasket 4987JJ2002N – Fix Air Leaks & Warm Fridge Fast

A worn or torn door gasket is one of the most common reasons a refrigerator runs constantly, struggles to maintain temperature, or develops condensation and frost around the door frame. In most LG French door refrigerators, the door gasket creates the airtight seal between the door and the cabinet — when it cracks, tears, or loses its magnetic grip, warm air infiltrates the compartment continuously. ⚡ High-wear sealing component on LG French door refrigerators — especially in units over 5 years old or in high-humidity environments. Part 4987JJ2002N is the genuine OEM door gasket assembly that restores a complete airtight seal and stops energy waste, temperature fluctuations, and frost buildup.

❓ Is This the Right Part?

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

• ✔ Refrigerator powers on and compressor runs normally
• ✔ Evaporator fan and condenser are confirmed working
• ✔ Temperature controls are set correctly
• ✔ ONLY problem is warm temperatures, condensation, frost around door, or visible gap in door seal

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

🔧 Common Symptoms

• Refrigerator runs constantly but struggles to reach set temperature
• Condensation or frost forming around the door frame or inside the compartment
• Visible cracks, tears, or gaps in the door gasket
• Door gasket feels stiff, brittle, or no longer springs back when pressed
• Higher than normal energy bills with no other explanation

✔ If these symptoms match, the door gasket is the most likely failed component — it is the primary barrier between the refrigerated compartment and ambient air.

✔ In most cases, replacing this door gasket restores a complete seal and normal temperature performance immediately.

📦 Part Details

• Part Number: 4987JJ2002N
• SKU: A040455G
• Type: Refrigerator Door Gasket Assembly — the magnetic rubber seal that runs around the perimeter of the refrigerator door to create an airtight closure against the cabinet frame
• Brands: LG
• ⚠️ Availability: This part is No Longer Available (NLA) from the OEM. Stock is limited to existing inventory only.

⚙️ Installation

Skill Level: MODERATE — 30–45 minutes. Disconnect power before servicing. The door gasket is retained by the inner door liner — loosen the retaining screws or clips around the door panel perimeter to release the old gasket. Work around the door carefully, pulling the old gasket free from the channel. Press the new gasket into the channel starting at the corners, ensuring it seats fully all the way around. Reheat stubborn sections with a hair dryer on low to make the rubber more pliable. Reinstall the retaining hardware and test the seal by closing the door on a piece of paper — it should grip firmly at all points.

✓ Compatible Models

Confirmed compatible with LFX25971SW, LFD25860SW, GRL25AUQXP, LMX25985SW, LFX25961SW, LFC25770SW, LFD25860TT, LMX25981SW, LFC25776SW, GRL258UQGH, LRFD25850TT, GRL258UQJP, GRB258UQAH, GRF258JTKA, LFX28977SW, GRL288KQJP, GRF258JTTA, GRL258SQWQ, GRB258UQNZ, GRL25AUQJH, GRL25AUQJP, LMX25984SW, GRF258JQKA, LFX25975SW, LRFD25850SW. Contact us to verify your model number before ordering.

💡 Pro Tip

✓ Model-Specific Repair Pages