Genuine OEM Replacement Part — Certified Pre-Owned
LG Dishwasher Leaving Dishes Dirty or Wet? Replace the Spray Arm Manifold AEC74357401
OEM Part AEC74357401
LDF5545 / LDP6797 / LDT5665 Series
LG Dishwashers
60+ Compatible Models
The spray arm manifold is the central water distribution hub inside your LG dishwasher — it routes pressurized water to the upper and lower spray arms. When it cracks, clogs, or fails, water pressure drops, spray arms stop spinning properly, and dishes come out dirty, spotted, or still wet. The AEC74357401 is the OEM spray arm manifold for LG dishwashers including the LDF5545, LDP6797, LDP6809, LDT5665, LDT7808, and related series. This is a Certified Pre-Owned OEM part — inspected and verified functional.
⚠️ Symptoms This Part Fixes
- Dishes coming out dirty or with food residue after a full cycle
- Dishes wet or spotted — poor rinse performance
- Spray arms not spinning or spinning weakly
- Low water pressure inside the dishwasher tub
- Visible cracks or damage to the manifold body
- Water leaking from the manifold connection point
- Dishwasher runs full cycle but cleaning results have noticeably declined
✓ Part Details
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OEM Part Number: AEC74357401
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Type: Spray arm manifold — central water distribution assembly
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Condition: Certified Pre-Owned — OEM part, inspected and verified functional
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Compatible Brands: LG, Kenmore (LG-built)
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Compatible Series: LDF5545, LDF5678, LDFN4542, LDP5676, LDP6797, LDP6809, LDP6810, LDP7708, LDP7808, LDT5665, LDT5678, LDT6809, LDT7797, LDT7808, LDTS5552, LSDF9963, LSDT9908, LUDP8908
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Ships From: Canada
💡 Pro Tip — Check the Spray Arm Nozzles and Filter While You’re In There:
If the manifold has failed, the spray arm nozzles are often partially clogged with mineral deposits or food debris — which can cause the same poor-wash symptoms even after the manifold is replaced. Remove each spray arm and flush the nozzles under running water, using a toothpick to clear any blocked holes. Also clean the mesh filter at the bottom of the tub. Doing this at the same time ensures the new manifold delivers full pressure to clean nozzles and gives you the best possible wash result.
⚙️ Installation Notes
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Skill Level: Beginner to Intermediate — no special tools required for most models
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First Step: Disconnect power to the dishwasher at the breaker or unplug before beginning any work
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Access: The manifold is typically accessed by removing the lower spray arm and lower rack — consult your model’s service manual for exact location
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Connections: Note the orientation and snap-fit connections before removing the old manifold — photograph before disassembly
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Seals: Inspect the manifold O-rings or gaskets during installation — replace if cracked or deformed to prevent leaks
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After Install: Run a short rinse cycle and check for leaks before closing up
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Model Number: Confirm your LG model number (inside door frame label) before ordering
✓ Compatible Models
Fits LG and Kenmore (LG-built) dishwashers including: LDB4548ST, LDF5545BB, LDF5545BD, LDF5545SS, LDF5545ST, LDF5545WW, LDF5678BD, LDF5678SS, LDF5678ST, LDFN3432T, LDFN343LS, LDFN4542B, LDFN4542D, LDFN4542S, LDFN4542W, LDP5676BD, LDP6797BB, LDP6797BD, LDP6797BM, LDP6797SS, LDP6797ST, LDP6797WW, LDP6809BD, LDP6809BM, LDP6809SS, LDP6810BD, LDP6810SS, LDP7708BD, LDP7708ST, LDP7808BD, LDP7808SS, LDPN6761T, LDPS6844AS, LDT5665BB, LDT5665BD, LDT5665ST, LDT5665WW, LDT5678BD, LDT5678SS, LDT5678ST, LDT6809BD, LDT6809SS, LDT7797BD, LDT7797BM, LDT7797ST, LDT7808BD, LDT7808BM, LDT7808SS, LDT7808ST, LDTS5552S, LSDF9963ST, LSDT9908BD, LSDT9908SS, LSDT9908ST, LUDP8908SN. Don’t see your model? Contact us and we’ll confirm compatibility before you order.
