Used Tool Index
DealsTool TypesPlatformsValue retentionMethodology
20V MAX · Impact Driver · bare tool or kit

DeWalt 20V MAX 1/4" Impact Driver (DCF840) used price

Prices as of · from live eBay listings, updated daily

Typical asking price · updated daily

$80.6913% below new on eBay

typical
Below ≤ $66.12$80.69Above > $99.99

A used DeWalt 20V MAX 1/4" Impact Driver (DCF840) typically asks $80.69 — the median across 67 listings live on eBay as of — with most between $66.12 and $99.99 — about 87% of what the same tool costs new on eBay. It is the 37th cheapest of 51 impact drivers tracked here. Listings under this part number cover both the bare tool and the kit. The median asking price is down 5% since Oct 17, 2026, from $84.90.

Selling one? Price at or below $66.12 to undercut three quarters of the 67 listings competing with you, or up to $99.99 to sell at the top of the normal range.

The full spread runs $40.45 to $159.86. These are asking prices, not sales, so treat them as where sellers start rather than what the tool fetches.

67 live listingsSee them all

Refreshed daily from live eBay listings. How we calculate this

Live listings · updated today

Best price right now

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Dewalt DCF840 20V MAX Brushless 1/4" Impact Driver TOOL Only

$40.45delivered50% below typical

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Where the 67 live listings sit

middle halfmedianone listing

$40.45$44.98$46.16$51.99$52.19$54.57$56.41$56.98$59.99$60.69$62.88$62.94$62.99$63.41$63.99$64.98$65.69$66.55$66.98$67$69.94$69.95$69.99$69.99$71$71.26$71.60$73.02$75$79$79$79.19$79.99$80.69$83.41$84$84.99$84.99$87.99$88.02$88.40$89$89.99$89.99$93$94.99$95.99$97.14$97.98$99.99$99.99$99.99$99.99$102.75$105$105.70$105.95$108.41$109.99$115$123.85$128.52$134.99$141.05$149$154.99$159.86 — beyond the plotted range
3 listings from $40.45 to $46.16 — jump to the listings7 listings from $51.99 to $60.69 — jump to the listings17 listings from $62.88 to $71.60 — jump to the listings7 listings from $73.02 to $80.69 — jump to the listings11 listings from $83.41 to $93 — jump to the listings9 listings from $94.99 to $102.75 — jump to the listings5 listings from $105 to $109.99 — jump to the listings2 listings from $115 to $123.85 — jump to the listings2 listings from $128.52 to $134.99 — jump to the listings2 listings from $141.05 to $149 — jump to the listings2 listings from $154.99 to $159.86 — jump to the listings
$36median $80.69$155+

1 listing above $155 — up to $159.86 — is plotted at the right edge rather than stretching the axis.

Price history

Median asking price for a used DeWalt 20V MAX 1/4" Impact Driver (DCF840), one day a week, from every verified listing live on eBay that day. It is down 5% since Oct 17, 2026.

DateMedian askingListings
$80.6967
$84.9969
$84.9970
$84.9970
$84.9071
$75.5070
$79.3566
$81.3560
$77.3558

Live listings (50)

As an eBay Partner Network affiliate, we earn from qualifying purchases made through links on this page, at no extra cost to you. That never affects which listings we show — they are ranked by delivered price.

Dewalt DCF840 20V MAX Brushless 1/4" Impact Driver TOOL Only

$40.45Below typical

Free shipping · 99.2% seller

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Dewalt DCF840 20V Max Li-ion Brushless 1/4" Impact Driver Tool Only

$44.98Below typical

incl. $9.99 shipping · 99.9% seller

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DEWALT DCF840 20V Brushless Cordless 1/4 in Keyless Impact Driver - Works Great!

$46.16Below typical

incl. $8.17 shipping · 99.2% seller

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DeWalt DCF840 20V MAX 1/4" Cordless Impact Driver

$51.99Below typical

Free shipping · 99.9% seller

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DeWalt DCF840 20V 1/4" Cordless Impact Driver TOOL ONLY

$52.19Below typical

Free shipping · 99.5% seller

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DeWalt DCF840 20V 1/4" Cordless Impact Driver Bare Tool

$54.57Below typical

incl. $6.57 shipping · 98.9% seller

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DEWALT DCF840 Cordless Impact Driver - Yellow/Black

$56.41Below typical

incl. $8.41 shipping · 100% seller

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DEWALT 20V MAX 1/4 in Brushless Impact Driver DCF840

$56.98Below typical

incl. $6.99 shipping · 99.6% seller

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DeWalt DCF840 20V 1/4" Cordless Impact Driver TOOL ONLY

$59.99Below typical

incl. $10 shipping · 99.5% seller

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Dewalt DCF840 20V 1/4 in Brushless Cordless Impact Driver (Tool Only)

$60.69Below typical

incl. $15.70 shipping · 99.6% seller

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Dewalt DCF840 1/4” Cordless Impact Driver With 1.5ah Battery Used

$62.88Below typical

Free shipping · 100% seller

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DEWALT 20V MAX BRUSHLESS 1/4" IMPACT DRIVER MODEL # DCF840 AND 2AH Battery

$62.94Below typical

incl. $7.99 shipping · 100% seller

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Dewalt DCF840 20V Max Li-ion Brushless 1/4" Impact Driver Tool Only

$62.99Below typical

Free shipping · 99.4% seller

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Dewalt 1/4" Impact Driver DCF840 Cordless 20V Drill 3200 RPM - Tool Only

$63.41Below typical

incl. $8.41 shipping · 99.3% seller

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DEWALT DCF840 1/4" 20V Cordless Brushless Impact Driver Tool Only (QUI005946)

$63.99Below typical

incl. $14 shipping · 99.6% seller

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DeWALT DCF840 20V 20 Volt Brushless Cordless 1/4" Hex Impact Driver

$64.98Below typical

incl. $14.99 shipping · 99.7% seller

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Dewalt DCF840 1/4" 20V 20 Volt Max Brushless Cordless Impact Driver (TOOL ONLY)

$65.69Below typical

incl. $15.70 shipping · 99.7% seller

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DEWALT DCF840 20V Brushless 1/4 in Hex Impact Driver w/ 2Ah Li-Ion (TOOL ONLY)

$66.55

incl. $6.55 shipping · 100% seller

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DeWALT 20v 1/4" (6mm) Cordless Impact Wrench TOOL ONLY - DCF840 D3

$66.98

incl. $6.99 shipping · 99.7% seller

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DEWALT DCF840 (P17028600)

$67

incl. $15 shipping · 99.6% seller

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DEWALT DCF840 1/4" 20V CORDLESS BRUSHLESS IMPACT DRIVER W/ 2AH BATTERY

$69.94

incl. $9.95 shipping · 98.9% seller

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DEWALT 20V MAX BRUSHLESS 1/4" IMPACT DRIVER W/2AH BATTERY ONLY !! DCF840

$69.95

Free shipping · 99.7% seller

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DeWalt DCF840 20V Cordless Compact 1/4" Impact Driver w/ belt clip (Tool Only)

$69.99

Free shipping · 99.3% seller

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DeWalt Tools DCF840 1/4" (6mm) Compact Cordless Impact Driver + 8Ah Battery

$69.99

Free shipping · 99.5% seller

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DEWALT DCF840 (P06037396)

$71

incl. $12 shipping · 99.4% seller

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DEWALT DCF840 20V MAX 1/4-inch Brushless Cordless Impact Driver with Battery

$71.26

Free shipping · 99.5% seller

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DEWALT DCF840 (PPS021964)

$71.60

incl. $11.65 shipping · 97% seller

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DEWALT DCF840 20V MAX Brushless 1/4in Keyless Impact Driver 1700 in-lbs

$73.02

incl. $8.02 shipping · 100% seller

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DeWALT DCF840 20V MAX 20 Volt Brushless Drill 1/4" Impact Driver

$75

Free shipping · 100% seller

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PRE OWNED DEWALT 1/4IN IMPACT WRENCH AND DRIVER DCF840 (P23014936)

$79

incl. $25 shipping · 99.1% seller

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DEWALT DCF840 (P02030837)

$79

incl. $15 shipping · 98.6% seller

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DeWalt DCF840 Cordless Impact Driver 20v Brushless - Tool Only

$79.19

incl. $14.20 shipping · 100% seller

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DeWalt DCF840 20V 1/4" Cordless Impact Driver W/ Power Stack Battery (GO1068113)

$79.99

incl. $15 shipping · 99.5% seller

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DeWalt 20V MAX DCF840 Brushless 1/4" HEX Impact Driver W/ Battery

$80.69

incl. $15.70 shipping · 99.8% seller

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DEWALT DCF840 20V Brushless Impact Driver - w/ 6Ah battery

$83.41

incl. $8.41 shipping · 99.9% seller

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DEWALT DCF840 WITH BATTERY (P08039785)

$84

incl. $10 shipping · 99.6% seller

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DEWALT DCF840 (DDP007225)

$84.99

incl. $15 shipping · 100% seller

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DEWALT DCF840 DRIVER W/5AH BATTERY (P08040559)

$84.99

incl. $15 shipping · 99.7% seller

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DEWALT DCF840 20V Brushless Impact Driver - w/ 6Ah battery

$87.99

Free shipping · 99.7% seller

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Dewalt DCF840 20V MAX Brushless 1/4" Impact Driver (CP1024003) Tool only.

$88.02

incl. $8.02 shipping · 100% seller

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DEWALT 20V MAX XR Brushless Impact Driver (DCF840) w/ Battery –Tested & Working

$88.40

incl. $8.41 shipping · 85.7% seller

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DEWALT DCF840 (P24039473)

$89

incl. $15 shipping · 99.1% seller

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DEWALT DCF840 W/BATTERY/Charger (P17034963)

$89.99

incl. $20 shipping · 99.3% seller

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DEWALT DCF840 (P28023318)

$89.99

incl. $20 shipping · 99.3% seller

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DEWALT DCF840 20V MAX 1/4" CORDLESS IMPACT DRIVER KIT (AL RLE) (PSH045541)

$93

incl. $15 shipping · 99.7% seller

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Dewalt DCF840 20V 1/4" Impact Driver (PD6015895)

$94.99

incl. $15 shipping · 99.5% seller

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USED DEWALT DCF840 20V 1/4" IMPACT DRIVER W/BATTERY&CHARGER (QUC028394)

$95.99

incl. $16 shipping · 99.7% seller

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DEWALT DCF840 1/4” IMPACT DRIVER CORDLESS WITH 1 BATTERY AND CHARGER

$97.14

incl. $17.15 shipping · 100% seller

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DeWalt DCF840

$97.98

incl. $7.99 shipping · 99.5% seller

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DEWALT DCF840 (PSN041372)

$99.99

Free shipping · 98.8% seller

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Prices include shipping and are refreshed daily. Availability changes without notice.

DCF840 covers more than one configuration. DeWalt uses it as a family number — sellers list both the bare tool and the kit with batteries under it, and the part number alone does not say which. The figures above span both, so the range is wider than for a single configuration. Check each listing's title for what is actually included.

Common questions about the DeWalt 20V MAX 1/4" Impact Driver (DCF840)

How much is a used DeWalt 20V MAX 1/4" Impact Driver (DCF840) worth?
The median asking price for a used DeWalt 20V MAX 1/4" Impact Driver (DCF840) is $80.69, across 67 listings currently live on eBay. Most sit between $66.12 and $99.99. This is what sellers are asking today, and it is refreshed daily.
What is a fair price to pay for a used DeWalt 20V MAX 1/4" Impact Driver (DCF840)?
Anything at or below $66.12 is cheap relative to the rest of the market — that is the 25th percentile of 67 live listings. Above $99.99 you are paying more than three quarters of sellers are asking. The middle half of the market runs $66.12 to $99.99. The cheapest listing right now is $40.45 delivered.
Are used DeWalt 20V MAX 1/4" Impact Driver (DCF840) prices going up or down?
Down 5%. The median asking price for a used DeWalt 20V MAX 1/4" Impact Driver (DCF840) went from $84.90 on Oct 17, 2026 to $80.69 on Nov 14, 2026, across 67 live eBay listings.
How long do used DeWalt 20V MAX 1/4" Impact Driver (DCF840) listings stay up on eBay?
Listings for a used DeWalt 20V MAX 1/4" Impact Driver (DCF840) that have ended stayed live for a median of 13 days. A listing ending is not proof it sold — sellers also end listings unsold, and eBay relists some automatically.
Is it worth buying a DeWalt 20V MAX 1/4" Impact Driver (DCF840) used instead of new?
A used DeWalt 20V MAX 1/4" Impact Driver (DCF840) asks about 87% of what the same tool costs new on eBay — $80.69 used against the new median. That is a narrow gap, and at that margin buying new is often the better deal once you account for warranty and condition.
How much do used DeWalt 20V MAX 1/4" Impact Driver (DCF840) prices vary?
Half of the 67 live listings sit within a $34 window, $66.12 to $99.99. The tightest $20 window holds 25 of 67, $60 to $80. 33 of 67 (49%) are asking under $80. These are asking prices across listings live on eBay, so the spread shows how much sellers disagree rather than how much the tool actually sells for.
What should I sell my used DeWalt 20V MAX 1/4" Impact Driver (DCF840) for?
Price it around $80.69 to sit mid-market, or at or below $66.12 to undercut three quarters of the 67 listings you are competing with. $99.99 is the top of the normal range. These are asking prices rather than sold prices, so they tell you where to start rather than what you will get, and buyers compare delivered cost — price with shipping in mind.
How many used DeWalt 20V MAX 1/4" Impact Driver (DCF840) are for sale right now?
67 listings for the DeWalt 20V MAX 1/4" Impact Driver (DCF840) are live on eBay right now, ranging from $40.45 to $159.86. We verify each one names this exact part number and is the whole tool rather than a part or an accessory.
Does the DeWalt 20V MAX 1/4" Impact Driver (DCF840) come with a battery?
It depends on the listing. DCF840 is a family number rather than a single product — DeWalt sells the bare tool and the kit under part numbers that both begin with it, and sellers routinely write just DCF840. The figures on this page cover both configurations, which is why the range is wider than for a single one. Check the individual listing title for what is included.

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See also: used impact drivers under $200 · all DeWalt 20V MAX tools · all DeWalt tools