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Craftsman 113177621 wet/dry vacuum

Craftsman 113177621 wet/dry vacuum Parts

Here are the diagrams and repair parts for Craftsman 113177621 wet/dry vacuum, as well as links to manuals and error code tables, if available.

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Browse Parts for 113177621 Vacuum Cleaners

  • Filter for Craftsman 113177621 - Part 17816

    Wet/dry vac diagram

    Filter

    Part #17816

    The manufacturer no longer makes this part, and there's no substitute part

  • Shop Vacuum Motor for Craftsman 113177621 - Part 509776-18

    Wet/dry vac diagram

    Shop Vacuum Motor

    Part #509776-18

    The manufacturer no longer makes this part, and there's no substitute part

  • Shop Vacuum Drain Cap for Craftsman 113177621 - Part 73185

    Wet/dry vac diagram

    Shop Vacuum Drain Cap

    Part #73185

    The manufacturer no longer makes this part, and there's no substitute part

  • Shop Vacuum Caster for Craftsman 113177621 - Part 73102

    Wet/dry vac diagram

    Shop Vacuum Caster

    Part #73102

    The manufacturer no longer makes this part, and there's no substitute part

  • Shop Vacuum Inner Lid And Motor Support for Craftsman 113177621 - Part 509822-1

    Wet/dry vac diagram

    Shop Vacuum Inner Lid And Motor Support

    Part #509822-1

    The manufacturer no longer makes this part, and there's no substitute part

  • Drum, 20-gal for Craftsman 113177621 - Part 830500

    Wet/dry vac diagram

    Drum, 20-gal

    Part #830500

    The manufacturer no longer makes this part, and there's no substitute part

  • Wet/dry Vacuum Extension Wand for Craftsman 113177621 - Part 17854

    Wet/dry vac diagram

    Wet/dry Vacuum Extension Wand

    Part #17854

    The manufacturer no longer makes this part, and there's no substitute part

  • Nozzle for Craftsman 113177621 - Part 16922

    Wet/dry vac diagram

    Nozzle

    Part #16922

    The manufacturer no longer makes this part, and there's no substitute part

  • Switch for Craftsman 113177621 - Part 813213

    Wet/dry vac diagram

    Switch

    Part #813213

    The manufacturer no longer makes this part, and there's no substitute part

  • Nozzle for Craftsman 113177621 - Part 17817

    Wet/dry vac diagram

    Nozzle

    Part #17817

    The manufacturer no longer makes this part, and there's no substitute part

Craftsman Wet/Dry Vacuum 113177621 FAQs

To remove the filter on your Craftsman 113177621 wet/dry vacuum, unplug the vac, remove the power head (lid), then release the filter from the filter cage using the center fastener used on your filter style. The exact steps and diagrams are in the 113177621 manual.

Step-by-step: safe filter removal
  • Unplug the vacuum and let the motor stop completely.
  • Lift off the power head (lid) to access the filter and filter cage.
  • Support the filter with one hand so it does not drop into the drum.
  • Loosen the center retainer used on your unit (commonly a filter nut or a quick-lock style retainer).
  • Slide the filter straight off the filter cage.
  • Reinstall the filter before dry pickup to protect the motor and maintain suction.
Wet vs. dry pickup setup (what to do before you start)

The 113177621 manual calls out different filter handling depending on what you are vacuuming.

What you are picking up Filter installed? Why it matters
Dry debris and dust Yes; filter must be correctly positioned Reduces leaks and protects the vac
Small amounts of liquid Filter may stay in place Keeps setup simple for minor spills
Large amounts of liquid Remove the filter Prevents saturation and exhaust misting
Quick checks before reinstalling
  • Make sure the filter seats evenly on the filter cage.
  • Tighten the center retainer securely (hand-tight is typical).
  • Inspect for tears or pinholes; replace a damaged filter immediately.
  • Use a dry filter for dry debris; a wet filter clogs quickly with dust.
Why it matters

A properly installed, undamaged filter keeps fine dust from bypassing into the motor area, maintains peak suction, and helps prevent dust blowback from the exhaust.

Last updated: February 2026

For the Craftsman wet/dry vacuum model 113177621, the parts list includes the vac assembly (motor housing and drum), hose and nozzles, filter system, casters, power cord and switch, plus accessories used for wet pickup, dry pickup, and blower operation. See the 113177621 owner's manual for the complete breakdown.

Common parts you will see on this wet/dry vacuum

These are the most common components referenced in the manual’s assembly, operation, and maintenance sections:

  • Motor housing and fan (creates suction and airflow)
  • Drum or tank (holds debris and liquids)
  • Hose assembly (connects airflow path to tools)
  • Utility nozzle and wet nozzle (pickup tools for dry vs. liquid use)
  • Filter (removable, cleanable, and replaceable)
  • Casters and caster feet (mobility and stability)
  • Power cord, polarized plug, switch (electrical supply and control)
Model-specific example part available for 113177621

If your vac is loud at the exhaust or you want to redirect airflow, this model has a muffler/diffuser option.

Part What it does When to replace
Shop vacuum noise muffler and diffuser, 2-1/2-in 551002117 Helps reduce exhaust noise and diffuse airflow Cracked, missing, or damaged; exhaust is harsh or poorly directed
How to use the parts list to order the right replacement

Using the correct model number and part ID prevents fit issues.

  • Match your model number exactly: 113177621
  • Use the part ID when available (example: 551002117)
  • Compare the part name to what you’re replacing (hose, nozzle, filter, caster)
  • Check whether the vac is set up for wet pickup or dry pickup before ordering filters/accessories
  • Confirm the accessory size (this model commonly uses 2-1/2-in accessories)
Why it matters

Wet/dry vacuums use different accessories for liquids vs. dry debris, and the manual also calls out safety and operating limits (for example, avoiding hot ashes, flammable liquids, and toxic materials). Having the correct parts list helps you restore suction, reduce noise, and keep the vac operating safely.

Last updated: February 2026

On the Craftsman wet/dry vacuum model 113177621, the model and serial number label is located underneath the handle. We recommend writing both numbers down so you can match the correct parts, filters, and accessories later using the 113177621 owner's manual.

How to find it quickly
  • Unplug the wet/dry vacuum for safety.
  • Stand behind the unit at the handle.
  • Look underneath the handle for the serial/model label.
  • Record the model number and serial number in a safe place.
  • Use the model number when ordering parts; use the serial number when checking production variations.
What to do with the model number once you find it

Having the model number helps you choose the right replacement parts for your vacuum, especially items that affect fit and performance.

What you need Where it’s used Example for this vacuum
Model number Parts lookup and manual match 113177621
Serial number Identifying production run details From the label under the handle
Part ID Ordering the exact part online 551002117
Common related part customers ask about

If your vac seems louder than normal or you want to direct exhaust away from you, the exhaust diffuser/muffler is a common replacement item for this model: shop vacuum noise muffler and diffuser, 2-1/2-in 551002117.

Why it matters

Using the exact model number prevents ordering the wrong Craftsman wet/dry vacuum parts (like hoses, filters, or exhaust components) and helps keep suction and airflow performing the way the vacuum was designed.

Last updated: February 2026

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