863S4 Bostitch Nailer - Overview

Diagrams for 863S4

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Parts for the 863S4

$50.77

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 ...Read more

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$23.42

KIT-SEQUENTIAL

Part #SEQ6

This authentic OEM sourced replacement part is designed for use with Bostitch nailers and staplers. The trigger provides a user with a comfortable grip to control the sequential trigger function of the tool. The sequential trip requires the operator to hold the tool against the workpiece before pulling the trigger. This makes accurate fas...Read more

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DISC-LATCH STOP

Part #103795

Assembly,Trigger

Part #100607

$5.11

Seal,Cap

Part #103802

$12.31

Seal,Cylinder

Part #103814

Spring,Torsion

Part #103839

Pusher,S4

Part #103845

$7.73

Pin,Latch

Part #105780

$4.08

Spring,Latch Lever

Part #105786

Bumper-Bottom

Part #107000

Kit-Rebuild 850/863

Part #RBK18

Repair Tips From Fixers Like You

See how others fixed this model. Time, tools, difficulty, and steps that lead to victory! View More

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 ... Read more

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