DeWALT DCF850B ATOMIC 20V 1/4" 3-Speed Impact Driver For Parts Or Repair D-3QX
The flip
- As-is
- $44
- Working value
- $83
- Margin
- +$39
Working value is the median price of active working-condition listings for this item. Estimate, not sold data.
carrillopowertools
15,175 sales
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What the seller says
Device powers on but exhibits weak output, suggesting battery degradation, worn motor brushes, or internal mechanical wear.
Likely faults & repair cost
The stated fault does not map to a single common repair part, so treat this as a parts or board-level unit and confirm the real cost before buying. The common failure points for this kind of item are below for reference. Subtract the relevant one from the $39 margin to gauge the real spread.
Common faults for this model
- Dead battery pack$25 to $60eBayAmazon
- Trigger / switch$10 to $25eBayAmazon
- Chuck$15 to $35eBayAmazon
- Motor brushes$8 to $20eBayAmazon
- Motor / armature$30 to $60eBayAmazon
Repair costs are rough parts estimates, not a diagnosis of this exact unit. Confirm the fault and your repair path before you buy.