This genuine manufacturer-sourced component is specially designed for use with Porter Cable power tools. It is an identical replacement for a missing or a faulty knob that was installed on a new unit. Please make sure to refer to the appropriate diagrams of your model for the correct location and application of this hardware. Keep in mind this high-quality part is made of durable metal with a plastic grip and is sold individually.
Troubleshooting
This part works with the following brands:
Porter Cable
DeVilbiss
This part works with the following products:
Router
Band Saw
Jig Saw
Sander Polisher
Part# 839279 replaces these:
839279, P839279,
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Customer Part Reviews
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5.0
Average Rating (out of 5):
★★★★★
★★★★★
(2 Reviews)
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★★★★★
★★★★★
Thanks for having great replacement parts. This helps so much
thank you
Guest - July 3, 2020
Verified Purchase
★★★★★
★★★★★
What I needed !!!!!!
I’ve needed a palm knob like this for a long time to go on my 51 year old Miller Welder my father bought for me when I was 10 years old and I’m 61 now and he has since passed, I want to restore it as close as it looked the day he gave it to me and that knob definitely helps, thanks a lot E-Replacement G£î=ƒÅ+
Jeffrey A - June 3, 2025
Verified Purchase
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Tore down and started trying to recognize the fault with the port a band. Found that the motor bearings had gone out and needed to be replaced. The more that I tore apart the saw the more I recognized the need for other parts beside the motor bearings that needed replacing. Both front and rear band guide roller bearings needed to be renew
... Read moreed (3 mini bearings on both sides of the blade opening) , a new seal in the gear box ( the gear box uses 90 WT). A major overall cleaning/ cleanup with air. Inspect and re-grease cage bearings in band sheaves. Put together with new parts.
What caused the motor bearing problem- Upon tear down I noticed a missing housing screw in the back section of the band saw body. In short this caused the housing to distort misaligned the motor bearings causing the problem due to the great tension that is placed on the housing that is needed to keep the band tight. A new screw was put back into the body to correct this problem which re-stiffened the body and keep the body alignment true. Band saw operates like new- cuts straight without any blade walk. A old heavy duty tool worth renewing that should last for many years. Gary C.
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Handle broken, worm gear shot, one rubber tire for pulley missing one worn out, screw for pulley missing
Fabricated pieces to repair handle, installed other parts to complete machine.
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Stock Status
This part is in stock in our warehouse and will ship out within 1 business day of the order being placed.
New stock is on the way! On order parts usually ship within 7 business days.
Item is not in stock and usually ships 10-15 business days from the time you place your order.
This item is no longer being made by the manufacturer, and cannot be added to your shopping cart.
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Mail-In Recycling Rebate
Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.
