ADQ736134 is nine characters. An LG refrigerator water filter part number is eleven. The two missing characters are 0 and 1. Adding them turns a dead end into the LG LT800P, a cartridge Water Filters FAST stocks at $49.99.

Nine characters is enough to feel like a part number and not enough to be one. A parts catalog reads the string, finds no exact match, and stops. Nothing on the screen explains that the number was simply cut short.

This page completes the number, names the filter it buys, and lists the LG numbers that look like it.

Written by the Water Filters FAST filter experts. Reviewed by Phil McNamara, owner, Water Filters FAST. Updated August 2026.

The complete number is ADQ73613401

LG assigns ADQ73613401 to the LT800P refrigerator water filter. Water Filters FAST lists it as LG LT800P Refrigerator Water Filter ADQ73613401 at $49.99 for a single cartridge.

LT800P is LG's model name for the same filter. Both strings buy one cartridge. A parts diagram that prints ADQ73613401 and a shelf tag that prints LT800P point at the same part.

The filter drops into LG French door and side by side refrigerators that use a cylindrical cartridge inside the fresh food compartment. It cleans the water going to the dispenser and the water going to the ice maker.

Where the missing characters go

Three places drop the last two characters of an LG number.

The cartridge label is the first. The part number sits on a printed wrap around the cartridge body. Six months of condensation curls the edge and lifts the ink, and the end of the string goes first because it sits closest to the seam.

Handwriting is the second. An owner squints at the wrap, copies the number onto a scrap of paper, and stops at a natural break. ADQ 736134 reads like a finished number to a tired eye, and the pen stops there.

Truncated listings are the third. A marketplace title with a character limit clips the tail of a long part number, and the shopper copies what the title shows.

All three produce the same nine characters. Adding 01 to the end resolves every one of them.

The other ending on the same stem

ADQ736134 carries a second closing pair. LG also shipped this cartridge as ADQ73613402, and that number shows up on Kenmore Elite parts lists.

Kenmore badges the same filter as 9490. The Water Filters FAST LT800P listing names Kenmore 9490 as a compatible fit, and Kenmore Elite parts lists name ADQ73613402 as the equivalent part number.

One cartridge, two closing pairs, and a Kenmore badge on top. Water Filters FAST stocks it as the LT800P at $49.99, and that is the listing to order from whichever number your parts list shows.

What the LT800P is rated for

LG rates the LT800P at six months or 200 gallons. Whichever limit arrives first ends the cartridge.

Length is the specification that settles a fit question fastest. The LT800P runs 7 3/8 inches. The LT1000P runs 5 3/8 inches on the same 1 5/8 inch diameter. The two look alike in a photograph and differ by two inches in the hand.

Measure the old cartridge before ordering when the number is unreadable. Two inches decides it.

The LG numbers that look like this one

LG builds most refrigerator filter part numbers on an ADQ prefix. The prefix says nothing about which filter you are holding.

The LG LT1000P draws the most confusion with ADQ736134. Both open with ADQ7 and both end in 01. The middle six digits are the only thing separating them.

The LG LT500P breaks the pattern entirely. LG numbered it 5231JA2002A, with no ADQ prefix anywhere. An LT500P owner searching an ADQ number is searching the wrong family.

One more trap sits in the ADQ73 block. LG numbers its refrigerator air filter ADQ73214404, and that cartridge filters the air inside the cabinet. Two numbers open with the same five characters and do two different jobs.

Which LG refrigerators take the LT800P

LG fits the LT800P to French door and side by side models that hold the cartridge inside the fresh food compartment. Kenmore Elite models built by LG take the same filter under the 9490 badge.

The model number settles it. Open the fresh food compartment and look along the left wall or under the crisper drawers for a sticker. The model number sits on that sticker, and it starts with a letter followed by a run of digits.

Two checks work without a model number at all. Pull the cartridge and measure it, because 7 3/8 inches means LT800P and 5 3/8 inches means LT1000P. Read whatever survives on the paper wrap, because even four digits from the middle of the string narrows the field to one filter.

Email support@waterfiltersfast.com with the model number off that sticker for a written answer. The filter experts run it against the catalog and reply with the part number.

Multi-pack pricing on the LT800P

Water Filters FAST sells the LT800P in four quantities. A single cartridge covers six months at LG's stated interval.

The 3 Pack takes a dollar off each cartridge and the 6 Pack takes two dollars off each one. Every pack size clears the $75 free shipping line except the single.

Store the spares upright in the original wrap. A cartridge keeps indefinitely until water touches the carbon.

Signs the cartridge is finished

An LG dispenser slows down first. Water that used to fill a glass in eight seconds starts taking fifteen, and the ice maker falls behind demand.

Taste comes back second. Chlorine returns to the water and to the ice. Clear cubes start coming out cloudy.

The filter indicator light is the third signal and the least reliable one. LG counts gallons through the dispenser, and a household that runs mostly on ice can hit 200 gallons before the light notices.

Change on the calendar and treat the light as a backup. Six months is the number.

Changing the LT800P

Find the filter housing inside the fresh food compartment. On most LG models it sits in the upper left corner or in the ceiling of the compartment.

Turn the old cartridge counterclockwise about a quarter turn and pull it out. Hold a towel underneath for the few ounces of water that always drip.

Push the new cartridge in and turn it clockwise until it stops. Run four gallons through the dispenser to flush the carbon dust out. That takes about eight minutes of filling and emptying a pitcher.

Hold the filter reset button on the display for three to five seconds afterward. LG panels vary. Check the owner manual when the display carries no obvious reset button.

Ordering and shipping

Water Filters FAST ships weekday orders the same day when they arrive before 1pm CST. Orders over $75 ship free and smaller orders ship for a $5 flat rate.

Returns run 30 days and a satisfaction guarantee covers every cartridge. Browse the full LG refrigerator water filter range, or start from the refrigerator water filter collection for other brands.

Call 855-789-FAST with the numbers you can still read off the old cartridge. The filter experts will finish the string.

Frequently asked questions

Is ADQ736134 a real LG part number?

No. It is the first nine characters of one. LG numbers run eleven characters, and the complete numbers on this stem are ADQ73613401 and ADQ73613402.

Is ADQ73613401 the same as the LT800P?

Yes. ADQ73613401 is LG's part number and LT800P is LG's model name for the same refrigerator water filter.

What is the difference between ADQ73613401 and ADQ73613402?

Both closing pairs belong to the same cartridge. Kenmore Elite parts lists carry the 02 ending, and Kenmore badges the filter as 9490.

Will the LT800P fit an LG refrigerator that takes the LT1000P?

No. The LT800P measures 7 3/8 inches long and the LT1000P measures 5 3/8 inches. Measure the old cartridge when the label has worn off.

How often does the LT800P need changing?

LG rates it at six months or 200 gallons. Change it on whichever limit arrives first.

Does ADQ73214404 fit the same refrigerator?

That number belongs to the LG refrigerator air filter. It filters the air inside the cabinet and never touches the water line.

Complete the number and order the filter

Add 01 to ADQ736134 and the cartridge is the LG LT800P at $49.99. Call 855-789-FAST or email support@waterfiltersfast.com when a worn label leaves you guessing.