Part Location Diagram of WEY7440K7918 Panasonic Chuck
See part 802 in the diagram
Replacing your Panasonic Cordless Drill Chuck
( Grid squares measure 1x1 inch )

Chuck WEY7440K7918

Manufactured by:
Panasonic
ERP Number:
ERP11789559
Part Number:
WEY7440K7918
Original Equipment Manufacturer ?
$78.68
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Easy 

15 - 30 mins 

(1 rated repair) ?

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Product Description

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This is an authentic OEM sourced replacement part which is specially designed for use with Panasonic drills/drivers. It allows a user to secure a drill bit, the ratcheting action clicks the jaws tightly into place for reduced bit slippage. If your drill's bit retention is suffering, the rotation feels stiff, or the chuck has seized up entirely, a new chuck should fix the problem. Please note this high-quality component is sold individually.

Troubleshooting

This part works with the following brands:
  • Panasonic
This part works with the following products:
  • Cordless Drill
Part# WEY7440K7918 replaces these:
EY6407K7918, EY9792, EY9792B, EY9796, EY9796B, EY9796B11, WEY6407K7916,

Videos For installing this part.

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Replacing your Chuck
Replacing your Chuck

Questions & Answers

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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.

Easy 

15 - 30 mins 

(1 rated repair) ?
  • 1
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Sorry, we couldn't find any existing installation instruction that matched.

One of the jaws of The Chuck had failed and I needed to replace it with a new keyless chuck

Brian from Lake George, New York

2 of 2 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers
Parts Used:
WEY7440K7918
Removed the chuck screw. It is a left handed thread. Opened the chuck all the way. Placed the largest allen wrench that would fit in the chuck. Put the short end of allen wrench in the chuck, then tighten the chuck. Put the drill in drill mode and in low speed. Place the drill on a flat surface, then hit the allen wrench a couple of times with a hammer and it started coming off of the spindle.Threaded the new chuck on the spindle hand tight, then replaced chuck screw.
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Model Cross Reference

This part works with the following models:
ERP Number: ERP11789559
Manufacturer Part Number: WEY7440K7918
Brand Model Number Description
Panasonic EY6431 Cordless Drill - Cordless Drill / Driver
Panasonic EY6432 Cordless Drill - 15.6V Cordless Drill / Driver
Panasonic EY7440 Cordless Drill - 14.4V Cordless Drill / Driver