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See part 9 in the diagram
Replacing your Bostitch Nailer Hd.Valve Piston play video
( Grid squares measure 1x1 inch )

Hd.Valve Piston

$3.08
Fix Number: FIX10246998
Manufacturer #: 180450-S
Manufactured by: Bostitch

Product Description

This is a manufacturer-approved replacement head valve and is sold independently. It controls the amount of air that enters the cylinder when the trigger is initiated. This action creates an imbalance in pressure between the cylinder and the air reservoir, allowing the head valve to open, firing the piston. The head valve can harden and crack and the valve body itself can break too. This will usually become obvious because air will leak from the gun exhaust. To access this part for the repair, you will need to remove the top cap from the nail gun.

Videos For installing this part.

Replacing your Hd.Valve Piston

Replacing your Hd.Valve Piston play video
Questions and Answers

Questions and Answers

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Model Compatibility
This part works with the following models:
Fix Number: FIX10246998
Manufacturer Part Number: 180450-S
Brand
Model Number
Description
Porter Cable
BN200C
Nailer - Brad Nailer
Porter Cable
BN200SB
Nailer - 18-Gauge Brad Nailer
Bostitch
BT1855
Nailer - Oil-Free Brad Nailer
Bostitch
BT1855K
Nailer - 18 Gauge Brad Nailer
Bostitch
BTFP12233
Nailer - Smart Point 18 GA Brad Nailer Kit
Bostitch
BTFP1850K
Nailer - 18ga 2in Brad Nailer
DeWALT
DWFP12231
Nailer - 18 Gauge 2" Brad Nailer
DeWALT
DWFP12232
Nailer - 18 Gauge 1-1/2" x 1/4" Narrow Crown Stapler
Bostitch
EHF1838K
Nailer - Flooring Stapler
Bostitch
LHF2025K
Nailer - Flooring Stapler
Porter Cable
NS150C
Nailer - 18G Stapler
Bostitch
SB-100SX
Nailer - Pneumatic Stapler
Bostitch
SB-150SX
Nailer - Finish Stapler
Bostitch
SB-1842BN
Nailer - Finish Stapler
Bostitch
SB-1850BN
Nailer - Finish Stapler
Bostitch
SB-2IN1
Nailer - Finish Stapler
Bostitch
SB1850BN
Nailer - 18ga Brad Nailer
Bostitch
SL1838BC
Nailer - Cap Stapler
Bostitch
SWK1850BN
Nailer - Stanley Nailer 2" Brad To
Bostitch
SX1838
Nailer - Pneumatic Brad Nailer & Stapler
Bostitch
SX1838K
Nailer - Oil-Free Stapler