LDT5678ST LG Dishwasher - Overview

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Dishwasher Holder – Part Number: MEG64438801
$13.15
In Stock
Dishwasher Holder
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(4)
Part #MEG64438801
This gray mounting bracket is designed to securely hold the dish rack in place inside your dishwasher during operation. Measuring 1 inch by 1 inch, it ensures stability and helps prevent the rack from shifting or causing internal damage. If the holder becomes broken or goes missing, replacing it is essential to maintain proper rack alignment. Each bracket is sold individually and installs easily by snapping into the designated slot.
Dishwasher Roller Assembly – Part Number: 4581DD3003C
$13.15
In Stock
Dishwasher Roller Assembly
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(8)
Part #4581DD3003C
The dishwasher roller assembly connects to the dishrack, and is located in the lower level of the dishwasher. It allows the dishrack to easily slide in and out. If the lower rack keeps falling off the track in your dishwasher, makes noises, the door will not close, or the dishes are not getting clean, then it is best to replace it for more security. A flat blade screw driver is the only tool needed for this installation. Open the lower dishwasher rack and remove retaining tabs from both ends of the rack and slide it out. Locate the older roll assembly, remove it and replace the rollers. Remember to put the tabs on each side back before sliding it back in. Make sure the dishwasher is off before starting this installation project.
Dishwasher Holder – Part Number: MEG64438901
$13.15
In Stock
Gasket – Part Number: 3920DD3005H
$69.25
In Stock
Gasket
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(6)
Part #3920DD3005H
If your dishwasher is leaking or not cleaning as well as it used to, the door gasket might be the culprit. This flexible rubber seal fits around the tub and keeps water and steam inside during each cycle. It’s tough enough to handle heat and wear, and replacing it can fix common problems like water on the floor or poor wash results. Installation is simple—just press it into the groove around the door and you’re good to go.
Diverter Motor - 120V 60Hz – Part Number: 4681ED3001D
$51.65
In Stock
GASKET – Part Number: MDS65210402
$63.75
On Order
Hose Drain Assembly – Part Number: AEM74333104
$82.45
In Stock
Hose Drain Assembly
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★★★★★
(6)
Part #AEM74333104
This drain hose assembly is designed for use with select LG washing machines and includes both the flexible rubber hose and plastic connectors. It efficiently channels used water from the washer tub to a designated drainage system, such as a standpipe or laundry sink. Over time, the hose may become clogged, dislodged, or damaged by foreign objects or external impact. Signs of a faulty hose include standing water in the tub, leaks, mold growth, or overflow. Prompt replacement is recommended to maintain proper washer performance. Installation requires only basic tools and should be done with the appliance powered off.
Dishwasher Water Inlet Valve – Part Number: 5221DD1001E
$80.25
In Stock
Dishwasher Water Inlet Valve
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★★★★★
(1)
Part #5221DD1001E
This part is the replacement inlet valve for your dishwasher. It is approximately 4-1/2 inches by 3-1/2 inches. The water inlet valve in your dishwasher connects to the water source and solenoid wires, and ensures the tub has the right amount of water entering it. If your dishwasher continues to fill after it is full, or if it fills slowly, you may need to replace this valve. Another indication that your valve is damaged and will need to be replaced, is if you notice it is leaking when the dishwasher fills up. Before you begin this repair, be sure to disconnect the water and power sources from your washer. This part is sold individually and is an authentic OEM part.
Circulation Pump – Part Number: ABT72989206
$423.69
In Stock
Circulation Pump
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(2)
Part #ABT72989206
This pump casing assembly is designed for use in select LG dishwasher models and houses several key components responsible for water circulation during wash and drain cycles. It includes the motor, which powers water movement; the impeller, which directs water through the spray arms; seals to prevent leaks; and both inlet and outlet ports that manage water flow into and out of the tub. The outer housing keeps all parts securely contained. If any part of this assembly fails, you may notice poor drainage, ineffective cleaning, or unusual grinding and buzzing noises. Replacing the entire assembly helps restore proper water circulation and overall dishwasher performance.
HOLDER – Part Number: MEG64438902
$13.15
In Stock
HOLDER
Part #MEG64438902
This grey tine row retainer is designed to securely hold the horizontal tine rows on your dishwasher rack, keeping them in place so dishes stay organized and stable throughout each wash cycle. It clips directly onto the rack to prevent tines from loosening or shifting, helping maintain proper spacing for plates, bowls, and cookware. A worn or broken retainer may cause the rack to feel loose or rattle during operation, making replacement necessary for smooth performance. Installation is quick and simply involves attaching the clip to the designated spot on the rack to restore proper support.
ACCESSORY ASSEMBLY – Part Number: 5001DD4001H
$39.55
In Stock
ACCESSORY ASSEMBLY
Part #5001DD4001H
Bushing – Part Number: 4830ED4001B
$13.15
In Stock
Bushing
Part #4830ED4001B

Questions And Answers for LDT5678ST

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Mike - For model number LDT5678ST
October 23, 2025
My dishwasher will not turn on
Chris Boyle Profile
Hi Mike, thank you for reaching out. We would suggest checking the power cord for any damage first. If it is fine, the issue could be with the PCB assembly, part number PS12080373. You may need to replace it to fix the issue. We hope this solves your problem!
$67.05
In Stock
PCB ASSEMBLY,FRONT
1 person found this instruction helpful.
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IN SUK - For model number LDT5678ST
April 6, 2026
I need one lower rack for above model. Where can I buy it?
Chris Boyle Profile
Hello In, thank you for the question. According to our research, the lower dishrack assembly, part number PS12078949, is compatible with your model number. We hope this is what you were looking for!
$268.31
In Stock
RACK ASSEMBLY
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Michelle - For model number LDT5678ST
June 2, 2026
Making a grinding metallic sound
Chris Boyle Profile
Hi Michelle, thank you for getting in touch. A grinding metallic sound is mostly caused by hard debris caught inside the pump or chopper assembly. We would suggest checking the circulation pump, part number PS12579574. Over time, internal seals leak water into the motor shaft bearings. The rusted bearings then emit a loud, continuous metallic drone or screech during the wash cycle. You may need to replace it to fix the issue. We hope this solves your problem!
$423.69
In Stock
Circulation Pump
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Steve - For model number LDT5678ST
2 days ago
Replacing lower 2 piece racks Have 2 right hand racks and can’t find left hand side
Chris Boyle Profile
Hi Steve, thank you for getting in touch. The 2 right-side tine racks are part numbers MGR62762701 and MGR62482103. If you require assistance to place an order, please contact customer service!
$39.65
On Order
RACK
$41.04
In Stock
RACK
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Lynn - For model number LDT5678ST
September 9, 2022
Timer flashes sometimes when I start cycle and have to reclose door. Then it starts cycle but will stop after about an hour or more. If I don’t notice it, I have to start again. May finish cycle but most of time happens again. Getting worse and can rarely get it to even start lately.
Chris Boyle Profile
Hello Lynn, Thank you for your inquiry. We have researched the model number you have provided and we would recommend checking the following parts to fix your issue: the door latch assembly, the diverter motor, the microswitch, and the control boards. Check the boards for any loose connections or visible damage, and you can test the other parts with a multimeter. If you are unfamiliar with how a multimeter functions, we have videos available to assist you. We hope this helps and if you need help placing an order for a part, customer service is open 7 days a week. Please feel free to give us a call. We look forward to hearing from you!
$51.65
In Stock
Diverter Motor - 120V 60Hz
$67.05
In Stock
PCB ASSEMBLY,FRONT
$87.95
In Stock
PARTS ASSEMBLY
$125.74
Special Order
PCB ASSEMBLY,DISPLAY
$28.55
In Stock
SWITCH,MICRO
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Common Symptoms of the LDT5678ST

How this model fails, and the parts that fix it.

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Loud noise when running - the infamous bad drive motor
34 of 39 people found this instruction helpful.
  • Mark from TEHACHAPI, CA
  • Very Easy
  • 30 - 60 mins
  • Pliers, Screw drivers
Replacing this pump is pretty easy. Disconnect the power and drain hose, and pull your dishwasher out from the counter. Lay it on its side on a towel. There WILL be spillage. Disconnecting the pump is simple. There are a couple hoses, one single wire connection (the thermistor) and one multi-wire plug. The pump is held in place by a pair of thick rubber holders which can be pulled off by hand. That's it!

After removing the pump, I disassembled it to find out why these fail so soon. It's a very poor design. I found that the nose of the electric motor, where the bearings are located, sits in a plastic cup formed by the top of the pump body. Any leakage from the pump around the motor shaft will be held in place against the motor bearing. It has no place to go. This causes rusting of the bearing. I expect I'll be replacing this one in a few years. :(

But kudos to PartsSelect for getting the right pump assembly for me, after getting the wrong one from another supplier!
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Dishwasher leaking; got AE error almost every other wash
12 of 20 people found this instruction helpful.
  • Bruce from Katy, TX
  • Really Easy
  • 30 - 60 mins
The inside gasket deteriorates over time - However replacement is easy. the main thing you have to remember is after you remove the old gasket, install the new one starting at the middle top of the tub and work your way down both sides. Also, don't push the gasket all the way in...only enough to hold in place. When you close the door the gasket will form a better seal around the door.
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Second roller in on the left side was missing don't ask my how, pulling the bottom rack out the rack would dip down i had to lift it up to pull it the rest of the way out.
9 of 17 people found this instruction helpful.
  • Lenny from KIRTLAND, OH
  • Very Easy
  • Less than 15 mins
Ordered the roller from Parts Select, slid the roller over the little spindle sticking out of the bottom rack and snapped it in place. Job done in less than one minute.
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