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DW66C-1R (17300 000 and Higher) DeWALT Nailer - Overview

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NUT-NYLON M5X.80 – Part Number: MHE5080-100
$6.40
In Stock
NUT-NYLON M5X.80
Part #MHE5080-100
This is an authentic OEM sourced component which is specially made for use with Bostitch and Porter Cable mailers and staplers. It is a standard hardware which has multiple applications, please make sure to check the appropriate diagrams of your model for the correct location and application of this nut. Keep in mind this high-quality item is made of durable metal and is sold indvidually.
NO MAR TIP – Part Number: 9R213318
$6.40
In Stock
NO MAR TIP
Part #9R213318
KIT-TRIGGER VALVE – Part Number: TVA6
$50.77
In Stock
KIT-TRIGGER VALVE
★★★★★
★★★★★
(1)
Part #TVA6
This is a genuine Bostitch replacement part that fits all BT brad nailers and all S32 staplers. If trigger leaks air or if tool misfires often, try replacing trigger valve. This kit contains one (1) each of: valve assembly (including both O-rings), lubricant, spring pin punch, and repair instructions. Please note that two (2) O-rings are included but can also be purchased separately as parts # 106967 and # 86459. O-rings are easily damaged and worn out, causing tool issues, so it\\\'s a good idea to have a backup or two on hand. Only a hammer is needed for this repair.
SEAL RING – Part Number: P2320006600
$6.40
In Stock
SEAL RING
Part #P2320006600
This is a genuine replacement seal ring supplied directly from original equipment manufacturer. It is a commonly used item on Bostitch nailers. This plastic part fits over the piston to provide an air tight seal. Over time seals would deteriorate and crack allowing for air leaks. Please note this item is made out of rubber material and it is sold individually.
O-RING – Part Number: S06S003600
$6.40
In Stock
O-RING
Part #S06S003600
This part is OEM and is compatible with various Bostitch nailers. An O-ring is a vital part that, when damaged or incompatible, can compromise the functioning of a tool. It acts as a flexible pressure seal between rigid parts. Sold individually.
HEX SOC.HD.BOLT – Part Number: S2710520100
$6.40
Special Order
HEX SOC.HD.BOLT
Part #S2710520100
This is an authentic replacement part manufactured for use with pneumatic fasteners. The hex socket head screw is commonly used to secure the main body or housing. This screw is available as an individual replacement part, please see model diagram for associative parts.
END CAP – Part Number: 9R209578
$11.95
In Stock
END CAP
Part #9R209578
This replacement end cap is specially designed for use with Bostitch nailers. It is supplied directly from original equipment manufacturer and it is sold individually. This end cap is helps to provide a seal for the air chamber. It is the part that the pressure hose would connect to. It is made out of metal and it is sold individually. Please note the o-ring is sold separately. Replacing this item is a simple task that should only require a wrench. • Make sure the unit is unplugged • Remove the old end cap • Secure the new cap • Test the unit
O-RING – Part Number: 851483-S
$6.40
In Stock
O-RING
Part #851483-S
This item has been OEM sourced to ensure a high level of quality. The o-ring is intended to be used with pneumatic nailers from Bostitch, Porter Cable, and DeWalt. The o-ring is used to seal the connection between the nose and the bottom of the cylinder. This item is sold as an individual replacement part.
Piston Head Valve – Part Number: 174054
$9.11
In Stock
Piston Head Valve
Part #174054
Restore reliable firing power with this piston head valve, a key component that controls airflow within the nailer's cylinder assembly. By directing air pressure to drive and return the piston during each firing cycle, it helps maintain consistent performance and efficient operation. A worn, cracked, or damaged valve can cause air leaks, reduced driving power, or improper cycling, making replacement an important step in restoring tool performance. Because internal component locations can vary between models, refer to your tool's parts diagram or service manual to confirm the correct placement before installation.
O-RING-44.7MMX3.5MM – Part Number: 174055
$6.40
In Stock
O-RING-44.7MMX3.5MM
Part #174055
Help keep your pneumatic nailer operating at peak performance with this O-ring seal, designed to create an airtight seal between internal components and maintain the air pressure needed for consistent driving power. A worn or damaged O-ring can lead to air leaks, reduced performance, and weak or inconsistent firing, making replacement an important part of routine maintenance. Made from durable rubber material, this seal helps restore efficient operation and reliable tool performance. Because O-ring locations can vary between tool models, refer to your tool's parts diagram or service manual to confirm the correct placement before installation.
DRIVER UNIT – Part Number: G0209200
$61.81
In Stock
DRIVER UNIT
Part #G0209200
This is a genuine OEM approved replacement part, it is specially designed for use with Bostitch nailers. It is the main components of the tool that drives the nail into the material. These assemblies do have a tendency to bend or break if not used correctly or if you are driving nails into an extra hard material. This unit includes a durable metal piston and a driver, please note the rubber o-ring is sold separately. To help extend the life of a pneumatic tool use the specified oil in it daily 4-5 Drops will do every time you use it.
0-RING – Part Number: 86460
$18.10
In Stock
0-RING
Part #86460
This is an authentic Bostitch replacement part, sold individually. O-rings are designed to withstand thousands of pounds of pressure by creating a seal between two or more parts. This O-ring is compatible with the staplers and nailers listed below.
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would not fire nails
10 of 15 people found this instruction helpful.
  • Richard from Bogalusa, LA
  • A Bit Difficult
  • 30 - 60 mins
  • Pliers, Screw drivers
remove 2 Philips head screws, drive out drift pins with drill bit. Remove TVA6 replace with new TVA6 making sure TVA6 is completely seated and slots are aligned with drift pin holes! Drive in drift pins. Replace trigger and screws.
This did not solve the problem as suggested by Parts select.
Replaced Head Valve Seal...Problem re solved
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