LG Refrigerator Water Filter Bypass Plug
LG’s main bypass plug fits most modern French door and side-by-side refrigerators, but not every LG model needs one at all — some run filter-free without issue, others leak or stop dispensing water. This page covers how to check which applies to you, the right part, and how to install it.
Do You Need a Bypass Plug for Your LG Fridge?
LG behavior is genuinely inconsistent by model — some newer LG refrigerators run completely filter-free with no leaks once the filter is removed, while others leak or stop dispensing water immediately. Test yours before buying anything: remove the filter, press the dispenser, and see what happens. See our full bypass plug decision guide for the complete framework. If you’re actually here to replace your filter instead, see our LG LT1000P compatibility guide.
How to Identify Your Filter Housing
Check the part number on your current filter cartridge before ordering a bypass plug. Most modern LG French door and side-by-side models use the same housing, but older or smaller models can differ — the sticker inside the filter compartment door usually lists the accepted filter part numbers if you don’t have your old filter to check. Compact models like the LG LT500P sometimes use a smaller housing that doesn’t match the standard bypass plug at all, so don’t assume compatibility from fridge size alone.
Which LG Bypass Plug Do You Need?
- ABN73019101 — LG’s main current part, fits the majority of modern LG French door and side-by-side refrigerators. Check current price at LGParts.com or Home Depot Repair Parts.
- ABN75058701 — a separate genuine LG part number used on certain other model runs. Match this against your current filter’s part number rather than assuming ABN73019101 fits every LG fridge.
- Open the filter compartment, usually inside the upper right of the fridge interior.
- Turn the existing filter or cap counterclockwise and pull it out.
- Insert the bypass plug into the housing.
- Turn or lock it into place per the cap’s design, then close the compartment cover.
- Run two to three gallons of water through the dispenser before drinking, to clear trapped air from the line.
Match your current filter’s part number first — the wrong one won’t seat correctly. These are direct links to real listings, not affiliate links; we don’t currently have a paid partnership with either retailer.
✓ Verified compatible
Source: LG’s official ABN73019101 product page
Last checked: August 27, 2026
Match type: Genuine LG OEM part number — ABN73019101, per the list above
How to Install an LG Bypass Plug
Frequently Asked Questions
Do all LG refrigerators need a bypass plug?
No. Behavior is genuinely inconsistent by model — test yours by removing the filter and pressing the dispenser before buying anything.
What’s the difference between ABN73019101 and ABN75058701?
Both are genuine LG bypass plug part numbers, but they fit different model runs. Match the part number to your current filter cartridge, not just the LG brand name.
My LG fridge leaks after removing the filter without a plug — is that normal?
Yes, on models that don’t auto-bypass. Install the correct bypass plug for your housing rather than leaving the compartment empty long-term.
Can I use a Kenmore bypass plug on my LG fridge?
Some Kenmore-badged refrigerators are manufactured on LG’s platform and can share parts, but confirm the exact part number against your current filter first rather than assuming by brand name.
Will using a bypass plug void my LG warranty?
A genuine LG-branded bypass plug used as intended is a normal accessory, not a modification. If you’re still under warranty and want certainty, keep your receipt and confirm with LG support before installing.