The DEWALT D55040 QUADRAPORT™ air line splitter with regulator turns one compressed air supply into four working connections for crews running multiple pneumatic tools. It features four universal 1/4 in. push-to-connect couplers, a high-flow regulator, a liquid-filled gauge, and a 3/8 in. inlet designed to improve airflow and reduce PSI drop when used with a 1/2 in. hose.
The DEWALT D55040 is a heavy-duty air line splitter designed for jobs that need more than one pneumatic connection from a single compressor. It is factory tested for leak-free operation and built around four universal push-to-connect 1/4 in. body couplers for quick hookup on the jobsite. The built-in regulator and liquid-filled gauge help crews monitor pressure more accurately closer to the point of use.
This QUADRAPORT™ setup can support two different PSI settings at the same time, which makes it useful when one crew is running tools with different air pressure needs from the same compressor. A 3/8 in. inlet fitting supports higher airflow and helps reduce PSI drop when paired with a 1/2 in. hose, and DEWALT also notes that a 1/4 in. fitting is included. Hang holes and the carry handle make it easier to position and move around active work areas.
Dewalt Quadraport Air Line Splitter With Regulator
- Four Universal Couplers: Connect up to four 1/4 in. air lines from one source for multi-user operation.
- Built-In Regulator: Adjust regulated output pressure for tools that need a different PSI setting.
- Liquid-Filled Gauge: Helps provide a more durable gauge with easier jobsite pressure readings.
- 3/8 in. Inlet: Supports higher airflow and helps reduce PSI drop when used with a 1/2 in. hose.
- Dual-Pressure Capability: Supports two different PSI settings at the same time for more flexibility on one compressor.
- Factory Tested: Checked by the manufacturer to assure leak-free operation.
- Carry Handle and Hang Holes: Easier to transport and position securely near the work area.
- Wide Application Fit: Suitable for framing, roofing, trim, flooring, and automotive air tool use.
Quick Specs
- Brand: DEWALT
- Manufacturer Part Number: D55040
- UPC: 885911154406
- Power Source: Compressed air
- Air Inlet Size: 3/8 in.
- Outlet Size: Four universal 1/4 in. body couplers
- Maximum Pressure Rating: 150 PSI listed by Acme Tools; Home Depot listing also describes two-PSI-use capability but does not show a max PSI in the parsed page.
- Weight: 4.0 lb assembled weight listed by Acme Tools; packaged weight is 4.55 lb on multiple retailer listings.
Markets
- Framing Crews: Helps support multiple nailers or air tools from one compressor line.
- Roofing Contractors: Useful when more than one user needs air access on the same setup.
- Trim and Finish Work: Lets crews run tools with different PSI needs from one compressor.
- Flooring Installers: Supports multi-tool pneumatic workflows in active work areas.
- Automotive Shops: Adds multiple air connections for service bays and tool changes.
- Maintenance Departments: Good for facilities that need a portable splitter with regulated output.
- Advanced DIY Workshops: Useful for home shops that run several pneumatic tools from one compressor.
Sales Pitch
The DEWALT D55040 is built for crews that need to get more out of one compressor without adding a complicated setup. Instead of stopping to swap hoses or reconfigure air lines, users can connect up to four tools and keep work moving. For mixed-pressure jobs, the regulator setup adds flexibility by allowing two different PSI settings at the same time.
It is also a practical choice for buyers who want a splitter that can hold up on active jobsites. The liquid-filled gauge is designed for better durability and more accurate readings near the work area, while the 3/8 in. inlet helps improve airflow when paired with a larger hose. With factory-tested leak-free performance, a carry handle, and hang holes for remote positioning, this is a solid option for contractors, maintenance teams, and shop users who need dependable compressed air distribution.
Dewalt D55040 Quadraport Air Line Splitter With Regulator Features
- Four Universal Push-to-Connect Couplers: Four 1/4 in. body couplers support quick connection and multi-user operation.
- Liquid-Filled Gauge: Built for durability and more accurate reading closer to the jobsite.
- High-Flow Regulator: Helps improve performance across connected pneumatic tools.
- Two-Pressure Operation: Can operate at two different PSI settings at the same time.
- 3/8 in. Inlet Fitting: Supports higher airflow and helps reduce PSI drop when used with a 1/2 in. hose.
- 1/4 in. Fitting Included: DEWALT notes that a 1/4 in. fitting is also included.
- Durable Carry Handle: Helps protect the unit and makes it easier to move around the jobsite.
- Hang Holes: Allow convenient and secure remote positioning.
- Factory-Tested Construction: Checked to assure leak-free operation.
Compatible Accessories / Works Well With
- Air Compressors: Works with DEWALT compressors and other compressed air systems.
- 1/2 in. Air Hose: Best matched where higher airflow is needed and reduced PSI drop is important.
- 1/4 in. Pneumatic Tool Hoses and Couplers: Matches the unit’s four universal 1/4 in. body couplers.
- Pneumatic Nailers and Air Tools: Suitable for framing, roofing, trim, flooring, and automotive applications.
Dewalt D55040 Quadraport Air Line Splitter With Regulator Includes
- (1) D55040 QUADRAPORT™ Air Line Splitter with Regulator & 1/4 in. Couplers
Dewalt D55040 Quadraport Air Line Splitter With Regulator Specifications
- Brand: DEWALT
- Manufacturer Part Number: D55040
- UPC: 885911154406
- Product Type: Air line splitter with regulator
- Product Line: QUADRAPORT™
- Power Source: Compressed air
- Air Inlet Size: 3/8 in.
- Outlet Configuration: Four universal 1/4 in. body couplers
- Pressure Function: Can operate at two different PSI settings at the same time
- Gauge Type: Liquid-filled gauge
- Regulator Type: High-flow regulator
- Maximum Pressure Rating: 150 PSI listed by Acme Tools
- Material: Aluminum manifold, steel couplers, and blow-molded plastic housing
- Assembled Weight: 4.0 lb listed by Acme Tools
- Package Weight: 4.55 lb listed by Acme Tools and Federated Tool
- Country of Origin: Taiwan listed by Acme Tools
Why Customers Choose the Dewalt Quadraport Air Line Splitter With Regulator
Buyers choose the DEWALT D55040 because it solves a common jobsite problem in a simple way: one compressor, multiple users, and fewer delays. For framing crews, trim carpenters, roofers, flooring installers, and automotive shops, this air line splitter helps keep pneumatic tools connected and ready without constant hose changes. The regulator and liquid-filled gauge also make it easier to manage pressure where the work is happening instead of walking back to the compressor.
It also fits buyers looking for a durable air manifold that is easy to position and transport. The four universal couplers, higher-flow 3/8 in. inlet, and factory-tested leak-free design make it a practical choice for contractors, shop managers, and maintenance teams that want a dependable air splitter for everyday use.












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