This is an original part from DeWALT. The check valve is made for use with several compressor machines. This item is secured to the adapter, allowing air flow to move when the back flow of moisture reverses to the opposite direction. This component is sold individually. A wrench is necessary for the proper installation.
Troubleshooting
This part works with the following brands:
DeWALT
Porter Cable
This part works with the following products:
Compressor
Part# 5140119-21 replaces these:
5140119-21,
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Customer Part Reviews
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4.5
Average Rating (out of 5):
★★★★★
★★★★★
(2 Reviews)
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★★★★★
★★★★★
exact part, well described in writeup.
Work perfectly. Compressor back up and running
Guest - October 6, 2025
Verified Purchase
★★★★★
★★★★★
Replacement part easy to find.
Seemed to be fine but didn’t fix the problem. Shot in the dark and I missed=ƒÿö
Jeanne - May 15, 2019
Verified Purchase
Questions & Answers
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This part is in stock in our warehouse and will ship out within 1 business day of the order being placed.
New stock is on the way! On order parts usually ship within 7 business days.
Item is not in stock and usually ships 10-15 business days from the time you place your order.
This item is no longer being made by the manufacturer, and cannot be added to your shopping cart.
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Mail-In Recycling Rebate
Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.
_WW_1.gif "Part Location Diagram of 5140119-21 DeWALT Check Valve")
_WW_1.gif "Part Location Diagram of 5140119-21 DeWALT Check Valve")
