KitchenAid KSB580NK0 blender Parts

To disassemble the blade assembly on your KitchenAid KSB580NK0 blender, remove the jar from the base, protect your hands with cut-resistant gloves, then loosen the retaining fastener on the underside of the jar. Many KitchenAid blade retainers use reverse threads, so loosening can be the opposite direction from normal.

Safety first (before you touch the blade)

• Unplug the blender base and move it away from the work area
• Empty the jar and rinse off residue so parts do not slip
• Wear cut-resistant gloves; the blade edges are sharp even when dull
• Work over a towel to keep the jar from rolling and to catch small parts
• If the jar is cracked or the blade is bent, replace the assembly instead of forcing it

Step-by-step: disassembling the jar and blade assembly

1. Remove the jar from the blender base.
2. Turn the jar upside down on a folded towel.
3. Locate the retainer/fastener on the bottom of the jar (often a winged nut-style retainer).
4. Hold the blade assembly steady from inside the jar (with a glove or thick towel).
5. Loosen the bottom retainer. If it does not loosen in the usual direction, try the opposite direction because reverse-thread retainers are common on blender blade assemblies.
6. Lift out the blade assembly and remove the seal/gasket.

What to replace while it is apart

If you see leaks, wobble, or grinding, replacing wear parts prevents repeat failures.

Symptom	Most likely issue	What we replace most often
Leaks under jar	Worn seal	Seal WP9709366
Blade assembly loose or jar damage	Jar or blade assembly wear	Jar WPW10555711
Loud rattling at base drive	Worn drive coupling	Coupling WPW10279256

Why it matters

A properly seated seal and correctly tightened retainer keep the jar from leaking and protect the motor drive system. Over-tightening or cross-threading can crack the jar or strip the retainer, leading to bigger repairs.

Last updated: February 2026

A bottom leak on your KitchenAid KSB580NK0 blender jar almost always comes from a worn seal at the blade/jar interface or a cracked jar base; less often, liquid wicks down from the lid and looks like a bottom leak. Replacing the leaking jar assembly is the most reliable fix.

Quick checks we recommend (before buying parts)

• Unplug the blender and remove the jar from the motor base.
• Fill the jar halfway with water and set it on a dry paper towel for 5 to 10 minutes.
• Look for drips at the blade area and around the jar bottom.
• Check for hairline cracks in the jar, especially near the bottom corners and around the blade mount.
• Confirm the lid is sealing; splashes can run down the outside and mimic a bottom leak.

Most common causes and what to do

What you see	Most likely cause	What we do next
Drips start under the blade area	Worn or damaged seal	Replace the jar assembly: jar WPW10555711
Leak only when blending hot liquids	Seal distortion from heat/pressure	Let liquids cool, avoid overfilling; replace jar if leak persists: jar WPW10555711
Slow seepage plus burning smell or noise	Drive coupling wear (can contribute to poor sealing/fit)	Inspect and replace: coupling WPW10279256
Water appears at bottom but jar passes water test	Liquid running down outside from lid/overfill	Reduce fill level, reseat lid, wipe exterior before testing

Why it matters

A leaking jar can let liquid reach the drive area and motor base, which can cause slipping, unusual noise, and premature wear of the coupling and internal components.

Helpful DIY skill builder

If you plan to troubleshoot electrical symptoms after a leak (no power, intermittent operation), use: how to use a multimeter to test electrical parts video.

Last updated: February 2026

To remove the blender drive coupling on your KitchenAid KSB580NK0, unplug the blender, remove the jar, then unthread the coupling from the motor shaft (most couplings loosen by turning clockwise because they use a left-hand thread). If the coupling is stripped or cracked, replace it with the correct part.

Before you start (safety and setup)

• Unplug the blender; never work on the base while it is connected to power.
• Remove the jar and set it aside; if needed, remove the jar WPW10555711 to access the base safely.
• Protect the housing with a towel to prevent scratches.
• Use a work glove for grip and to protect your hands.

How to remove the drive coupling (typical method)

1. Hold the motor shaft still: If you can access the shaft from below, hold it steady (some designs allow this; others do not).
2. Turn the coupling to loosen: Many KitchenAid style couplings are left-hand threaded, so you loosen by turning clockwise.
3. Break it free gently: If it is stuck, use a firm, controlled tap on the coupling (not the housing) to start it moving.
4. Spin it off by hand once it starts turning.

If the coupling is stuck or damaged

• If the coupling is rounded off, cracked, or slipping, plan to replace it with the coupling WPW10279256.
• If the blender base rocks or vibrates while you work, check the rubber feet; a missing foot can make removal harder (see foot WPW10524701).

Quick troubleshooting guide

What you see	Likely cause	What we recommend
Coupling will not budge	Thread-locking, corrosion, overtightened	Controlled taps, better grip, hold shaft if possible
Coupling spins but won’t drive jar	Stripped coupling	Replace coupling
Loud rattling or wobble	Base not stable	Replace missing/worn foot

Why it matters

The drive coupling is the sacrificial link between the motor and the jar blade drive. Replacing a worn coupling early helps protect the motor shaft and reduces slipping, noise, and poor blending performance.

Last updated: February 2026

Yes, you can usually wash some KitchenAid blender parts in the dishwasher, but we recommend keeping the KitchenAid KSB580NK0 motor base out of the dishwasher and hand-washing any parts that contain bearings, seals, or drive components to prevent leaks and premature wear.

What you can typically dishwasher-clean

Use the top rack when possible and avoid heated dry if you want to be extra gentle.

• Blender jar (if it is a one-piece jar assembly)
• Lid and removable cap
• Measuring cup insert (if included)
• Non-electrical accessories

If your jar assembly includes a built-in blade and seal, frequent dishwasher cycles can shorten seal life over time.

What should never go in the dishwasher

These items can trap water, damage electrical components, or degrade lubricated parts.

• Motor base and controls
• Power cord and plug
• Drive coupling area under the jar
• Any part with a press-fit seal or bearing

For KSB580NK0, the power cord W11197488 is an electrical component and should only be wiped clean, not submerged.

Best way to clean it fast (no disassembly)

This method is effective for smoothies, sauces, and everyday residue.

1. Fill the jar halfway with warm water.
2. Add a drop of dish soap.
3. Run on low for 10 to 20 seconds.
4. Rinse and air-dry with the lid off.

If you notice leaking, wobble, or a burning smell

Dishwasher heat and detergents can accelerate wear on seals and drive parts. Check these common wear items:

Symptom	Most common cause	What to inspect/replace
Leaks under jar	Worn seal	Seal WP9709366
Jar not turning	Stripped drive	Coupling WPW10279256
Excess vibration	Jar or blade assembly issue	Jar WPW10555711

Why it matters

Keeping water out of the motor base and protecting seals helps your KitchenAid KSB580NK0 blend consistently, prevents leaks onto the base, and reduces the chance of drive coupling wear.

Last updated: February 2026