This is a Genuine Manufacturer Sourced replacement part used on some Dewalt Framing Nailers. This Assembly includes a new valve, trigger and o-rings. If your tool is leaking air or the trigger valve is stuck, replacing this part may resolve the issue.
Trigger Valve Assembly 5140095-73
OEM part for: DeWALT
Part Number: 5140095-73
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Frequently Purchased Together ?
Compatibility
This part will fit the following 14 machines
DeWALT
This item works with the following types of products:
- Nailer Parts
This part replaces obsolete part #: 641006-00, 390738-00
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Does this fit my product?Questions & Answers for Trigger Valve Assembly
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.
Air would leak from the trigger area when the trigger was depressed.
Tool Type
Nailer
Difficulty
Medium
Time
Less than 15 minutes
Tools Used
, punch
Parts Used
Air was leaking around nail gun trigger
Tool Type
Nailer
Difficulty
Medium
Time
30-60 minutes
Tools Used
, Hammer & a skinning punch
Parts Used
Nailer inoperable; O-rings on trigger worn out
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, torx, pin punch
Parts Used
2. use pin punch to drive out roll pin(s) holding trigger assembly
3. pull/blow out old trigger
4. apply light coat of silicone grease to new trigger O-rings
5. gently/carefully insert and seat new trigger (do not force, be careful not to cut O-rings)
6. reinsert/press roll pin(s) back in
7. re-attach nail feed guide
8. attach air supply, check for leaks, test ---- you're done [hopefully]
Leaking air at the trigger valve
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Pliers, Small hammer and punch
Parts Used
Nailer would not fire, leaked air from trigger when pulled
Tool Type
Nailer
Difficulty
Medium
Time
15-30 minutes
Tools Used
, Punch and hammer
Parts Used
Nailer would not shoot nails, air leak around trigger
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, allen wrench, punch, hammer,pliars
Parts Used
Trigger o rings
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Adjustable Wrench, Allen wrench and a punch
Parts Used
All the gaskets were pretty much turned to mush and no longer held air pressure.
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Pliers, Allen wrench, hammer and punch
Parts Used
2) figured out that the trigger gaskets also failed and replaced that kit.
air nailer would not fire
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, Pin punch
Parts Used
2. used pin puch to drive out two retaining pins
3. removed triger assembly
4. cleaned triger area
5. reversed process for installation
When you pulled the trigger it would continually shoot nails out unill you were out of nails.
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Nutdriver
Parts Used
2. Remove trigger assembly.
3. Install new trigger assembly
4. Pound in roll pins.
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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.