Search  for anything...
DEWALT

DEWALT 20V MAX* PEX Expander Tool Kit, 1-Inch (DCE400D2)

  • Based on 581 reviews
Condition: New
Checking for the best price...
$402.73 Why this price?
Save $126.27 was $529.00

Buy Now, Pay Later

As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Apr 5 – Apr 8
Order within 12 hours and 33 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Features

  • The cordless tools combo kit expands 3/8-inch with 1-inch Pex Type-A tubing
  • Construction tools with automatic rotating head action for even expansion
  • DEWALT tool kit comes with full trigger actuation for use in tight spaces
  • Bright LED work light to help illuminate dark areas
  • Dual-sided hang and belt hooks for convenient storage
  • Rubber overmold for comfortable, ergonomic grip
  • Uses DEWALT PEX Heads. Compatible with Milwaukee and Uponor Heads. (Milwaukee is a registered trademark of Milwaukee Electric Tool Corp. Uponor is a registered trademark of Uponor Oyj.)

Description

Expand PEX Type-A tubing from 3/8-inch to 1-inch with this 20V MAX Cordless 1-inch PEX Expander, the fastest PEX Expander on the market. It's proudly made in the USA with global materials. An automatic rotating head helps to ensure even expansion. The bright onboard LED work light and full-trigger actuation make it an excellent tool in dimly lit, tight spaces. Carry this tool conveniently around the jobsite with a dual-sided hang hook and belt hook. Rubber overmold on the handle provides an ergonomic grip to keep you comfortable all day. DEWALT 20 volt tools use DEWALT PEX Heads, and are compatible with leading competitive PEX heads.

Brand: DEWALT


Voltage: 20 Volts


Item Weight: 5 Pounds


Battery Cell Composition: Lithium Ion


Number of Batteries: 2 Lithium Ion batteries required. (included)


Voltage: 20 Volts


Battery Type: Lithium Ion


Number of Batteries: 2 Lithium Ion batteries required. (included)


Power Source: Cordless


Item Weight: 5 Pounds


Unit Count: 1.0 Count


Brand Name: DEWALT


Included Components: (1) DCE400 PEX Expander, (2) DCB203 BatteriesCharger, (3) Expander Heads (1/2", 3/4", 1"), PEX Expander Grease, Kit Box.


Manufacturer Warranty Description: 3 year limited warranty


Model Number: DCE400D2


Global Trade Identification Number: 12


Set Name: kit


UPC: 885911522212


Manufacturer Part Number: DCE400D2


Manufacturer: DEWALT


Item Type Name: DEWALT DCE400D2 20V MAX* 1" PEX Expander Tool Kit


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Apr 5 – Apr 8

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Easy tool to use
Bought this to help a friend with pex water lines, so easy to use and fast. Makes water lines clean and professional
Reviewed in the United States on February 19, 2026 by steve Baker
    • Awesome tool
Powerfull and easy to use.
Reviewed in the United States on February 7, 2026 by M. Longhofer
    • Good tool
Works great. Makes installing Pex A tubing very quick vs using a manual expansion tool.
Reviewed in the United States on October 9, 2025 by David
    • Easy to use
Saved me a ton of money over using copper to plumb my house
Reviewed in the United States on September 24, 2025 by Brendon Knox
    • Works as expected
Works as expected PROS: Came with carry case, battery charger, 2 spare batteries and the 1/2", 3/4", 1" attachments. CONS: If you are not a plumber, you really don't use this often. Its a bit expensive for single use but not available to rent anywhere. Overall, if you plan to use it frequently then its a good purchase. but I can't image anyone except a plumber using it frequently. ... show more
Reviewed in the United States on August 3, 2025 by James Seedorff
    • Game Changer, Just a Fantastic Tool
I actually enjoy plumbing with this. Cheaper than the Milwaukee, works pretty much the same. And for anyone not familiar, three really big advantages to Expansion PEX (aka Wirsbo, PEX-A, Pro-PEX, etc.): 1) Unlike crimp/clamp PEX where the fittings are smaller inside diameter (ID) than the tubing, the fittings are the same size ID as the tubing, so no reduced flow rate. To give an idea, for 1/2" PEX, the reduction between crimp/clamp and expansion PEX is 30-50%, for 3/4" it's closer to 20-30%. So pretty significant. 2) This tool fits in tighter spots than the handles on crimp/clamp tools. Not a big deal....until it's a REALLY big deal in tight quarters. 3) Easier on your hands/forearms if you're doing it all day Bonus) The built in light comes in really handy when when you're working in less than optimal lighting situations. Total game changer for me, highly recommend. ... show more
Reviewed in the United States on October 20, 2025 by JustSomeGuy007
    • So easy.
PEX-A is so easy to DIY to replace existing plumbing. I haven’t had a single connection even think about leaking. Ensure you cut the pipe flush put the ring on all the way and then hold it still as this tool auto-rotates. It’s a bit heavy, but feels very well built. Clips onto my belt like other utility tools. Came with 2 batteries and they seem to last a long time. The chargers are the new style though and not as mountable as the old ones. Feels like it is very consistent until the battery starts getting low - but it doesn’t consume much power. 100+ connections for the first full charge. If you have more than a few connections to do, get this tool, it’ll be a life saver. ... show more
Reviewed in the United States on January 10, 2026 by L W’s
    • Works great but these things are pricey
All of these Pex expanders are way too pricey for what you get. I've used the hand expanders in the past which are not fun to use, especially overhead, so this is a welcome upgrade. It works well and gets the job done quickly. I think for the price, the batteries should be bigger. It should also include 4 heads, not 3. I've only used it once for a very small project but I'm pleased with how well it worked and this feels like a solid, quality tool. ... show more
Reviewed in the United States on October 31, 2023 by Nitrousbird

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...