Dishwasher Leaking From the Door? LG Door Seal Gasket MDS65210409 – Fix Door Leaks Fast
A leaking dishwasher door is almost always a failed door seal gasket. In most LG dishwashers, the door gasket runs along the full perimeter of the tub opening and compresses against the door liner on every cycle. When it fails, water escapes onto the floor during or after the wash cycle. ⚡ Common failure point in LG-built dishwashers. Part MDS65210409 is the genuine OEM replacement that restores a watertight door seal and stops leaks immediately.
❓ Is This the Right Part?
This is the correct fix if ALL of the following are true:
- ✔ Dishwasher powers on and runs cycles normally
- ✔ Spray arms, pump, and drain function correctly
- ✔ Water supply and inlet valve confirmed OK
- ✔ ONLY problem is water leaking around or below the door
Not sure? Send us your model number — we'll confirm before you order.
🔧 Common Symptoms
- Water pooling on the floor during or after a wash cycle
- Visible cracks, tears, or hardening in the door gasket
- Gasket pulling away from the door channel or tub lip
- Musty odour from moisture escaping the tub
✔ If these symptoms match, this is the most likely failed component in the system.
✔ In most cases, replacing this door seal gasket restores normal operation immediately.
📦 Part Details
- Part Number: MDS65210409
- Type: Door Seal Gasket — full perimeter tub seal, press-fit/channel-seated
- Replaces: MDS65210402, MDS65210409
- Brands: LG
- Condition: New Genuine OEM
While the door is open and the gasket channel is exposed, inspect the door latch and door springs. A worn latch can prevent the door from sealing fully even with a new gasket — replacing both at the same visit saves a second service call.
⚙️ Installation
Skill Level: EASY — 15–30 minutes. Disconnect power to the dishwasher before servicing. Open the door fully and pull the old gasket out of the channel starting at a corner. Clean the channel thoroughly, then press the new gasket in starting at the top centre and working outward to the corners. Close the door and run a short cycle to verify the seal.
✓ Compatible Models
Confirmed compatible with LDB4548ST, LDF5545BB, LDF5545BD, LDF5545SS, LDF5545ST, LDF5678SS, LDF5678ST, LDP6797BB, LDP6797BD, LDP6797SS, LDP6797ST, LDP6797WW, LDT5665ST, LDT5678BD, LDT5678SS, LDT5678ST, LDT7797ST plus additional LG models. Contact us to verify your model number before ordering.
💡 Pro Tip
A worn or misaligned door latch is the second most common cause of door leaks after a failed gasket. If the latch doesn't click firmly or the door feels loose when closed, replace the latch assembly at the same time. Doing both in one visit eliminates the most common causes of LG dishwasher door leaks and avoids a repeat repair.
✅Compatibility & Cross Reference
Not sure about your model number? Call 1-877-899-7278 and we’ll help you confirm. All brand names are the property of their respective owners and are used for compatibility reference only.
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