Home

Explore

View Cart

Deals

Saved

Suggested searches

Plant-based protein powders
Vegan leather handbags
Bedroom decor
Waterproof jackets
Hoodies

Learn more about how we use your data to personalize your experience and ads. Recommendations are for informational purposes only.

QuickShipKeys.com

QuickShipKeys.com

Master Lock AC3984 Padlock Replacement Key

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$8.87

Color

Black

Quantity

Product description loading

Product description loading

This is the product description text that will appear here.

Shopping designed around you.

Start selling

For brands

For creators

Build your store

Information

Shop Pay

Help center

Social

X (Twitter)

Instagram

Legal

Terms of Service

Privacy Policy

Your Privacy Choices

Powered by

|

Start selling for free

Language

© Shopify Inc. 2026

Quantity

1

You might also like

QuickShipKeys.com

Master Lock AC3873 Padlock Replacement Key

QuickShipKeys.com

Master Lock AO1913 Padlock Replacement Key

K1 MASTER KEY - 1st-in-Padlocks

1st-in-Padlocks

K1 MASTER KEY

QuickShipKeys.com

Master Lock 11H273 Replacement Key

QuickShipKeys.com

Master Lock 3922 Padlock Replacement Key

Master Lock A1159 Padlock Replacement Key

QuickShipKeys.com

Master Lock A1159 Padlock Replacement Key

QuickShipKeys.com

Master Lock X2138 Padlock Replacement Key

QuickShipKeys.com

American Lock 37468 Replacement Key

QuickShipKeys.com

Master Lock 2302 Padlock Replacement Key

Master Lock 2001 - 4200 Padlock Replacement Key Series

QuickShipKeys.com

Master Lock 2001 - 4200 Padlock Replacement Key Series

Master Lock 0668 Padlock Replacement Key

QuickShipKeys.com

Master Lock 0668 Padlock Replacement Key

QuickShipKeys.com

Master Lock X2056 Padlock Replacement Key

Prolube Oil

Prolube Oil

Prolube Oil

4.8

(8.1K)

Master Lock Key Only - 1st-in-Padlocks

1st-in-Padlocks

American Lock Key Replacement - Padlock Only

(1)

QuickShipKeys.com

Master Lock 2688 Padlock Replacement Key

Master Lock 3841 Padlock Replacement Key

QuickShipKeys.com

Master Lock 3841 Padlock Replacement Key

QuickShipKeys.com

Master Lock E4177 Padlock Replacement Key

QuickShipKeys.com

Master Lock 11N304 Padlock Replacement Key

QuickShipKeys.com

Master Lock 2374 Padlock Replacement Key

Master Lock 0001 - 0999 Padlock Replacement Key Series

QuickShipKeys.com

Master Lock 0001 - 0999 Padlock Replacement Key Series

QuickShipKeys.com

Master Lock 0898 Padlock Replacement Key

Proven Industries

Proven Industries

Proven Industries

4.8

(9K)

Model 400XL Puck Locks Proven Locks Blue (Billet 6061 Aluminum) Keyed Differently

Model 400XL Puck Locks Proven Locks Blue (Billet 6061 Aluminum) Keyed Differently

Model 2516 2 5/16'' Trailer Coupler Locks Proven Locks

Extra Keys-Includes a set of 2 keys 2 5/16'' Trailer Coupler Locks Proven Industries

Receiver Hitch Lock Model HL1 other locks Proven Industries 2'' Aluminum BLUE Cobra 7 Keyed Alike (All locks in shopping cart will have the same key) (+ $1.00)

QuickShipKeys.com

American Lock 85148 Padlock Replacement Key

QuickShipKeys.com

Master Lock 2126 Padlock Replacement Key

Master Lock A1066 Padlock Replacement Key

QuickShipKeys.com

Master Lock A1066 Padlock Replacement Key

QuickShipKeys.com

Master Lock 2356 Padlock Replacement Key

QuickShipKeys.com

Master Lock X2366 Padlock Replacement Key

QuickShipKeys.com

CCL 4T47943 Replacement Key

QuickShipKeys.com

Master Lock 11N316 Padlock Replacement Key

QuickShipKeys.com

Master Lock 2130 Padlock Replacement Key

RVLock

4.6

(10.6K)

QuickShipKeys.com

Master Lock 12G363 Padlock Replacement Key

QuickShipKeys.com

Master Lock 11N953 Padlock Replacement Key

QuickShipKeys.com

Master Lock 2494 Padlock Replacement Key

Master Lock A1081 Padlock Replacement Key

QuickShipKeys.com

Master Lock A1081 Padlock Replacement Key

QuickShipKeys.com

Master Lock 0340 Padlock Replacement Key

QuickShipKeys.com

Master Lock 2467 Padlock Replacement Key

QuickShipKeys.com

CCL 4T40004 Replacement Key

QuickShipKeys.com

Master Lock 2686 Padlock Replacement Key

Master Lock 3966 Padlock Replacement Key

QuickShipKeys.com

Master Lock 3966 Padlock Replacement Key

Master Lock 2001 - 4200 Padlock Replacement Key Series

QuickShipKeys.com

Master Lock 2001 - 4200 Padlock Replacement Key Series

QuickShipKeys.com

Master Lock X2127 Padlock Replacement Key

QuickShipKeys.com

CCL 4T43785 Replacement Key

Master Lock 2001 - 4200 Padlock Replacement Key Series

QuickShipKeys.com

Master Lock 2001 - 4200 Padlock Replacement Key Series

American Lock Key Duplicate - Padlock Only - 1st-in-Padlocks

1st-in-Padlocks

Master Lock Control Key Replacement by Number

(1)

Master Lock 0340 Padlock Replacement Key

QuickShipKeys.com

Master Lock 0340 Padlock Replacement Key

QuickShipKeys.com

Master Lock 9908 Padlock Replacement Key

QuickShipKeys.com

Master Lock 14H384 Replacement Key

Shop Collection

Shop Collection

Master Lock 3882 Padlock Replacement Key

QuickShipKeys.com

Master Lock 3882 Padlock Replacement Key

QuickShipKeys.com

Master Lock X2732 Padlock Replacement Key

QuickShipKeys.com

Master Lock 13H039 Replacement Key

QuickShipKeys.com

American Lock 18477 Replacement Key

QuickShipKeys.com

Master Lock 16G704 Padlock Replacement Key

QuickShipKeys.com

Master Lock 0658 Padlock Replacement Key

Master Lock 2001 - 4200 Padlock Replacement Key Series

QuickShipKeys.com

Master Lock 2001 - 4200 Padlock Replacement Key Series

QuickShipKeys.com

Master Lock X2252 Padlock Replacement Key

QuickShipKeys.com

American Lock 42838 Replacement Key

Master Lock 0766 Padlock Replacement Key

QuickShipKeys.com

Master Lock 0766 Padlock Replacement Key

QuickShipKeys.com

Master Lock X2486 Padlock Replacement Key

QuickShipKeys.com

Master Lock A1321 Mailbox Replacement Key

QuickShipKeys.com

Master Lock 11Z424 Replacement Key

QuickShipKeys.com

Master Lock N0671 Padlock Replacement Key

Master Lock 3921 Padlock Replacement Key

QuickShipKeys.com

Master Lock 3921 Padlock Replacement Key

FastShipKeys.com

Master Lock 0001-4000 Padlock Replacement Key

(1)

QuickShipKeys.com

Master Lock X2001 Padlock Replacement Key

QuickShipKeys.com

American Lock 84849 Padlock Replacement Key

QuickShipKeys.com

Master Lock 0793 Padlock Replacement Key

Master Lock 0856 Padlock Replacement Key

QuickShipKeys.com

Master Lock 0856 Padlock Replacement Key

WildBear

4.4

(449)

Master Lock 2001 - 4200 Padlock Replacement Key Series

QuickShipKeys.com

Master Lock 2001 - 4200 Padlock Replacement Key Series

QuickShipKeys.com

CCL 4T38804 Replacement Key

QuickShipKeys.com

American Lock 34426 Replacement Key

Master Lock 0313 Padlock Replacement Key

QuickShipKeys.com

Master Lock 0313 Padlock Replacement Key

QuickShipKeys.com

Master Lock 3764 Padlock Replacement Key

Master Lock 0001 - 0999 Padlock Replacement Key Series

QuickShipKeys.com

Master Lock 0001 - 0999 Padlock Replacement Key Series

QuickShipKeys.com

Master Lock 12G176 Padlock Replacement Key

QuickShipKeys.com

Master Lock 16Z187 Padlock Replacement Key

QuickShipKeys.com

Master Lock 2440 Padlock Replacement Key

QuickShipKeys.com

Master Lock A1120 Mailbox Replacement Key

QuickShipKeys.com

Master Lock X2050 Padlock Replacement Key

QuickShipKeys.com

American Lock 43844 Replacement Key

Master Lock 2001 - 4200 Padlock Replacement Key Series

QuickShipKeys.com

Master Lock 2001 - 4200 Padlock Replacement Key Series

QuickShipKeys.com

Master Lock 11N194 Padlock Replacement Key

Master Lock A2077 Padlock Replacement Key

QuickShipKeys.com

Master Lock A2077 Padlock Replacement Key

QuickShipKeys.com

Master Lock 10G013 Padlock Replacement Key

QuickShipKeys.com

CCL 4T47899 Replacement Key

Master Lock 2001 - 4200 Padlock Replacement Key Series

QuickShipKeys.com

Master Lock 2001 - 4200 Padlock Replacement Key Series

Master Lock 2001 - 4200 Padlock Replacement Key Series

QuickShipKeys.com

Master Lock 2001 - 4200 Padlock Replacement Key Series

QuickShipKeys.com

Master Lock 9901 Padlock Replacement Key

OEM compatibility ensures secure fit with Master Lock padlocks for reliable performance
Keyed by AC3984 code for quick and accurate replacement
Made from solid brass for enhanced durability and longevity
Suitable for use with Master Lock series AC0001 and AC4500 padlocks
Ideal for vehicle, RV, and property lock applications

Summarized by Shop

Padlock Replacement Key with code AC3984 for Master Lock Key Series AC0001 - AC4500. Compatible with Manufacturers: Master Lock! Compatible with Manufacturers & Product Specifications: PADLOCKS ONLY > MASTER (FRAMON/PLUNGE CUT) | MUST BE LOCK CODE FROM KEY OR ORIGINAL PACKAGING, NOT THE PADLOCK. Key cut on M2 key blank.

Key Type: Replacement key
Key Code: AC3984
Material: Brass
Compatible Padlock Series: Master Lock AC0001, AC4500
Color: Gold
Pattern: Solid

Summarized by Shop

Returns accepted within 14 days

Exclusions may apply. See full policy

QuickShipKeys.com

4.5 (934)