CompX Chicago Key Blank DK-4
CompX Chicago DK-4 Key Blank
CompX Chicago DK-4 Key Blank
DK-4 Key Blank
Bulk Pricing
1+ units
$5.77 ea
2+ units
$5.17 ea
5+ units
$4.17 ea
10+ units
$3.57 ea
Free shipping not eligible
Shipping charges will apply to this item.
133 in Stock. 50 more on the way! Arriving by 11/10/2026.
Cole CG1 | Curtis CG-1, CG1 | Dominion 41G | ESP CG1 | Ilco 1041G | Ilco EZ CG1, CG1-BR | Jet CG1 | JMA CHI-2E, CHI2E | CompX Chicago Original DK-4, K4 | Orion 1041G | Silca CH1 | Star CG1 | Taylor 41G
Shop high-quality CompX Chicago DK-4 key blanks at EasyKeys.com, a versatile replacement key blank designed for a wide range of furniture, appliance, utility and industrial lock systems. These durable, precision-manufactured DK-4 blanks are built to strict OEM specifications, ensuring smooth cutting, accurate duplication and consistent lock performance. This key blank fits a broad variety of products manufactured by Chicago, Amana, Aurora, Bobrick, Buick, Cardex, Chevrolet, Claussen, Coldspot, Decker, Evinrude, Frigidaire, Genie, Graham Paige, Greenwood, Haliburton, Harley Davidson, Harris, Hotpoint, Hudson, Johnson Outboard, Juke Box, Lyon, Motorola, OMC, Philco, Reo, Starcraft, Victor, Whirlpool, and Wonderlock. Common applications include desk and cabinet locks, appliance locks, garage door locks, trailer locks, marine locks, RV and camper locks, and older automotive and equipment locks across extensive key code ranges. Ideal for locksmiths, facility managers, maintenance teams and service professionals who need a dependable, multi-application key blank for Chicago-style lock systems. Fast shipping and consistent quality guaranteed.This key blank is used on the following series:
Ilco / CG1-BR
$3.47 As low as $1.77
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Customer Reviews
What Our Customers Say
Honest feedback from customers who purchased from EasyKeys.
Showing 20 most recent reviews
Mildred
Nov 03, 2026
“Easy to do”
David
Nov 03, 2026
“It's my go to source for file cabinet, desks,and storage cabinets.”
Devin
Nov 03, 2026
“So far so good will know for sure when I get the product I’m excited to see if the key is an exact fit bc honestly that’s crazy”
Roberta
Nov 03, 2026
“easy”
Kathie
Nov 03, 2026
“I actually found this site very easy to navigate. No issues whatsoever. ”
Daniel
Nov 02, 2026
“Great”
Paul
Nov 02, 2026
“Easy to contact service for help ”
Donald
Nov 02, 2026
“Great ”
James
Nov 02, 2026
“A little confusing at first smooth sailing afterwards”
William
Nov 02, 2026
“It was easy”
Stephen
Nov 02, 2026
“Simple and easy way to get a replacement key”
Mark
Nov 02, 2026
“I have had, overall, a very good experience with this vendor. Helpful staff and a good website.”
Terry
Nov 02, 2026
“It was quick and easy. ”
David
Nov 02, 2026
“Easy Easy Easy just entered my lock code and placed the order. ”
Miguel
Nov 02, 2026
“Clear and easy to use”
FELIPE
Nov 01, 2026
“great place to order your office keys”
George
Oct 31, 2026
“easy to use”
MYRON
Oct 31, 2026
“easy”
Andrew
Oct 31, 2026
“Locating what I needed was easy, checkout was just as easy. ”
Mark
Oct 30, 2026
“Easy to locate key code and order product…thank you!”









