Easy
15-30 minutes
This part is an OEM sourced directly from the manufacturer for use in DeWALT pressure washers. The coupler attaches to the pump assembly. It might require a wrench to replace this part if it becomes broken. Keep in mind this high-quality part is made of metal and is priced individually.
Coupler 5140094-94
OEM part for: DeWALT
Part Number: 5140094-94
$35.26
In Stock
Ships within 1 business day 
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Compatibility
This part will fit the following 20 machines
DeWALT
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Show More Compatible Models
This item works with the following types of products:
- Pressure Washer Parts
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Customer Repair Instructions ?
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
Pressure washer would not start and pressure hose leaked
James - June 29, 2019
Tool Type
Pressure Washer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Pliers, Socket set, Carb port cleaning solvent and tools
Parts Used
removed Carb and cleaned it
replaced pressure hose quick disconnect
replaced pressure hose quick disconnect
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Engine over reved and caused pump to build excess pressure and blow seals.
Roger - March 29, 2018
Tool Type
Pressure Washer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Socket set, Wrench Set
Parts Used
1. Repaired the governor.
2. Removed the backing plates.
3. Installed the new O-Rings.
4. Installed the new coupler.
2. Removed the backing plates.
3. Installed the new O-Rings.
4. Installed the new coupler.
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OEM stands for Original Equipment Manufacturer and means the part you’re buying is sourced directly from the manufacturer who made your product. At eReplacementParts, we sell only genuine OEM parts, guaranteeing the part you’re purchasing is of better design and of higher quality than aftermarket parts.
Our product descriptions are a combination of data sourced directly from the manufacturers who made your product as well as content researched and curated by our content & customer service teams. This content is edited and reviewed internally before being made public to customers.
Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.
