Owner’s manual
Are shop vac filters compatible with Craftsman?
Yes, many Shop-Vac style filters can fit a Craftsman wet/dry vacuum, as long as the filter matches the mounting style and size used on your specific vac. For Craftsman model 113177370 (16-gallon wet/dry vacuum), confirm the correct filter type and installation details in the 113177370 owner's manual.
How to tell if a filter will fit
We see compatibility most often when the filter uses the same attachment method (band clamp, threaded nut, or slip-on cage) and is designed for the same tank size and motor head design.
Check these fit points before you buy:
- Mounting method: does it clamp on, screw on, or slide over the filter cage?
- Filter shape: cartridge vs. foam sleeve vs. bag
- Diameter and height: the filter must clear the drum and seal at the lid
- Wet pickup rating: foam or wet-rated filter for liquids
- Fine dust needs: HEPA or fine-dust cartridge for drywall and sanding
Quick compatibility guide (what usually works)
| What you are vacuuming | Typical filter type | Compatibility note |
|---|---|---|
| Dry debris (general cleanup) | Cartridge filter | Most common cross-brand fit if the mount matches |
| Water pickup | Foam sleeve or wet-rated filter | Use a wet-rated option to protect the motor |
| Fine dust (drywall, sanding) | Fine-dust or HEPA cartridge | Must seal tightly; bags help reduce clogging |
| Mixed debris | Cartridge plus dust bag (if supported) | Bag fit is model-specific; verify size and collar |
Why it matters
Using the wrong wet/dry vac filter can reduce suction, leak dust back into the air, or allow moisture and debris into the motor area. Matching the filter to the job (wet vs. dry, coarse vs. fine dust) keeps performance strong and helps the vac last longer.
Last updated: February 2026
How do you remove the filter from a Craftsman wet dry vac?
On the Craftsman 113177370 16-gallon wet/dry vacuum, we remove the filter by unplugging the vac, then unscrewing the filter nut on the filter cage, lifting off the filter plate, and lifting the filter straight off. Follow the steps in the 113177370 owner's manual.
Step-by-step: filter removal (safe and correct)
- Unplug the power cord to prevent accidental starting.
- Remove the power assembly (motor head) from the drum if needed for access.
- Locate the filter nut on the end of the filter cage.
- Unscrew the filter nut.
- Remove the filter plate.
- Lift the filter off the filter cage.
Important warnings and handling tips
- Keep the filter cage installed; it helps protect your fingers from the blower wheel.
- Handle the paper filter carefully; crushed pleats and rough handling shorten filter life.
- After cleaning, inspect for tears or pinholes; replace the filter if damaged.
- Reinstall the filter before dry pickup to protect the blower wheel and motor.
Quick reference table
| Task | What to do | Why it matters |
|---|---|---|
| Before removal | Unplug the vac | Prevents accidental start and injury |
| Remove filter | Unscrew nut, remove plate, lift filter off | Prevents damage to the cage and filter |
| After cleaning | Check for holes/tears | Stops dust blow-by and mess |
| Before dry use | Reinstall filter | Protects motor and maintains suction |
Why it matters
A properly installed, intact filter is what keeps fine dust out of the motor and out of your air. Removing it the right way also prevents damage to the filter cage and helps your wet/dry vacuum maintain strong suction.
Last updated: February 2026
Where can I get Craftsman replacement parts?
For your Craftsman 113177370 16-gallon wet/dry vacuum, the most reliable way to get the right replacement parts is to shop by the exact model number and then order by the part number listed for that model. Our Craftsman 113177370 owner's manual includes a repair parts list to match parts correctly.
Best ways to buy the correct Craftsman parts
- Use the exact model number 113177370 when searching for parts (the manual notes the model and serial number are found on the handle).
- Order by part number, not by diagram key number (this is called out in the repair parts section).
- Match the part description to your need (for example: toggle switch, cord with plug, lid gasket, filter).
- For electrical items, replace with identical parts designed for a double-insulated wet/dry vacuum.
- If you are unsure which part failed, confirm the symptom first (no power, weak suction, noisy motor, leaking at lid).
Common parts customers replace on model 113177370
These are examples of part types shown in the manual’s repair parts list for this model.
| Part type | What it affects | Common symptom |
|---|---|---|
| Filter | Airflow and dust control | Low suction, dust blowing out |
| Cord with plug | Power delivery | No power, intermittent power |
| Toggle switch | On/off control | Won’t start or won’t shut off |
| Lid gasket | Seal between lid and drum | Whistling leak, reduced suction |
Why it matters
Wet/dry vacs like the Craftsman 113177370 are double-insulated, so using the correct replacement parts protects performance and safety. Ordering by the model number and the exact part number prevents fit issues and repeat repairs.
Last updated: February 2026
Where to find model number on Craftsman Wet Dry Vac?
On the Craftsman wet/dry vacuum model 113177370, the model and serial number label is located on the handle. We recommend writing both numbers down and keeping them with your paperwork so you can match the correct repair parts and filters later.
Where to look (fast checklist)
- Unplug the wet/dry vacuum for safety.
- Stand behind the unit and look at the handle area.
- Find the model and serial number label on or near the handle.
- Record both numbers exactly as shown (including dots or dashes).
- Use the model number to match parts like the filter, lid gasket, toggle switch, or cord with plug.
What you should record
| Item | What it’s used for | Example for this vacuum |
|---|---|---|
| Model number | Identifies the exact vacuum design and parts list | 113.177370 (often shown as 113177370 online) |
| Serial number | Helps identify production details for service and support | Unique to your unit |
Why it matters
Wet/dry vac parts and accessories can look similar across Craftsman models, but small design changes affect fit. Using the exact model number helps ensure you get the right components for a 16-gallon wet/dry vacuum, especially for filtration and motor cover related items.
Helpful tip
If the label is dusty or hard to read, wipe it gently with a damp cloth and let it dry before recording the numbers. For diagrams and the full parts list layout, use the 113177370 owner's manual.
Last updated: February 2026
Why do shop vacuums lose suction?
Shop vacuums like the Craftsman 113177370 most often lose suction because airflow is restricted: a clogged or wet filter, a blockage in the hose/nozzle, or the float shutting off airflow during liquid pickup. Restoring suction usually means clearing the restriction and using the correct filter setup per the 113177370 owner's manual.
Most common causes (and what to check first)
- Filter clogged with fine dust: clean or replace the filter; fine debris packs into the media and chokes airflow.
- Filter is wet while vacuuming dry debris: a wet filter clogs quickly; dry it before picking up dust.
- Hose, wand, or nozzle blockage: remove the hose and check for a plug of debris at bends and fittings.
- Drum is overfilled: a packed drum reduces airflow and can push debris into the filter.
- Float has risen during liquid pickup: when the drum reaches a set level, the float rises and airflow stops; motor sound becomes higher-pitched.
Quick suction restore checklist
- Unplug the vac.
- Remove the hose and check suction at the inlet (strong suction here means the hose/nozzle is blocked).
- Inspect the filter for heavy dust loading or tears; never run with a torn filter.
- If the filter is wet and you need to pick up dry material, run the vac with no hose for about 10 minutes to help dry the filter.
- If you were vacuuming liquids and suction stopped, empty the drum and lower the float by draining.
Dry pickup vs. liquid pickup setup
| Task | Filter installed? | What can cause “no suction” fast? |
|---|---|---|
| Dry debris (dust, sawdust) | Yes; dry filter required | Wet filter, clogged filter, hose blockage |
| Small liquid amounts | Filter can stay in place | Saturated filter causing misting and restriction |
| Large liquid amounts | Remove filter | Float rises when drum fills, airflow stops |
Why it matters
Low suction is almost always an airflow problem. Running the motor with airflow cut off (such as with the float raised) reduces performance and can lead to avoidable wear; keeping the filter clean and dry protects suction and the motor.
Last updated: February 2026
