DeWalt DW331K Jig Saw Dust Port Size and Vacuum Adapter Guide
DeWalt Top-Handle Jig Saw
Specifications
DeWalt DW331K Jig Saw Dust Port Size and Vacuum Adapter Guide
The DeWalt DW331K is a top-handle corded jig saw. It cuts curves and shapes in wood and metal. When you cut, fine dust lands right on your line and hides the blade.
This saw does not have a plain round dust port. It uses a proprietary attachment, so a generic round adapter will not just push on. The matching OEM part is the Vacuum Adaptor 581281-00. DeWalt does not publish a bore size, so measure your own port with calipers before you buy. A GulpDust PETG adapter can be built to match the port on one end and your shop vac hose on the other end. No tape. No clamps.
DeWalt DW331K Dust Port and Specs
Port size: please measure to confirm
This port size is an estimate. Measure your own dust port with calipers before you buy, so the adapter fits the first time.
Source we cite: www.ereplacementparts.com
| Dust port | Proprietary snap-on (measure to confirm) |
| Port shape | Proprietary |
| OEM dust part | 581281-00 |
| Connection | Proprietary |
| Port location | Rear |
| Tool type | Top-handle jig saw |
DeWalt DW331K Dust Port: Proprietary Attachment, No Published Size
The DW331K does not use a clean round port. It uses a proprietary dust attachment that fits the shape of this saw. The matching OEM part is the Vacuum Adaptor 581281-00. DeWalt does not list a bore size for it.
Because there is no round stub, a plain round adapter will not push on and seal. Most shop vac hoses are 1-7/8 inch or 2-1/2 inch, and neither one grabs a proprietary port on its own. That gap is why dust blows past a taped hose and onto your cut line.
You have three good paths. Measure your exact port and order a GulpDust adapter built to that shape. Use the OEM Vacuum Adaptor 581281-00 as the dust attachment. Or use the GulpDust configurator custom path and send us your two port readings so we match it.
How to Measure Your DeWalt DW331K Dust Port
Look at the rear dust attachment point on the saw. Because it is a proprietary shape, write down the width and the height, not just one number. Wipe out any sawdust so your reading is clean.
Close caliper jaws around the outside of the port at its widest point. Then take the inside reading the same way. Two numbers tell us the shape so the adapter can be matched to it.
If you already own the OEM Vacuum Adaptor 581281-00, measure the open end of that part too. That is often the easiest place to step to a shop vac hose.
How to Connect a Shop Vac to the DeWalt DW331K
First, fit the correct dust attachment to the saw. That is either the OEM Vacuum Adaptor 581281-00 or a GulpDust part built to your measured port.
Press the small end of the PETG adapter onto the attachment. It is a friction fit, so it holds with a firm push. Then press your shop vac hose onto the wide end.
Turn the vac on before you cut. A clear line is easier to follow, so your curves come out clean and you breathe less dust.
DeWalt DW331K Dust Collection FAQ
What size is the dust port on the DeWalt DW331K?+
DeWalt does not publish a bore size. The saw uses a proprietary attachment, the OEM Vacuum Adaptor 581281-00, not a round cuff. Measure your own port with calipers before you buy so the fit is tight.
Will a round shop vac adapter fit the DeWalt DW331K?+
Not on its own. The port is a proprietary shape, so a plain round adapter will not push on and seal. Use the OEM part 581281-00 or a GulpDust adapter built to your measured port.
What is OEM part 581281-00?+
It is the DeWalt Vacuum Adaptor for the DW331K, the proprietary dust attachment made for this saw. You can find it on the DW331K parts diagram. It is the safest starting point for a clean dust hookup.
Can GulpDust make an adapter for this saw?+
Yes. Measure your port width and height, then use the GulpDust configurator custom path. We build a PETG adapter that matches your port on one end and steps to your shop vac hose on the other end.
Can I print this adapter myself?+
Yes. You can buy the printed PETG part shipped from the US, or download the STL file and print it at home. We suggest PETG with 3 walls and 25 percent infill.
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