Small 6 1/4"(w) x 8"(h) RetroFit Door and Universal Mailbox Flag Kit

Small Mailbox Door BlackMailbox Door SmallMailbox Door Small - 2Retrofit Mailbox Replacement DoorInstallation Mailbox Door
MSRP: $49.95
Price: $39.95
You Save: 20 %
Item Number: BSM6BK
Manufacturer: Bayshore Mailbox Company
Manufacturer Part No: BSM6BK
Bayshore Retrofit Mailbox Replacement Door Black and Universal Flag Kit

Style:   Black  (Available colors, Black, White and Natural)

Size:  Fits most steel and aluminum mailboxes measuring approximately 6 1/4" wide by 8" tall.  (Measuring the receptacle opening)

Shipping Weight:   1.1lbs 

Satisfaction Guaranteed with our No Questions Asked Return Policy!

The RetroFit is an easy to use, easy to install, snap-in replacement mailbox door, for standard 6 1/4"  US post office mailboxes.    The RetroFit simply snaps in, and remains secure to fit in virtually all commercially available standard 6 1/4" mailboxes. See photos for illustration of dimensions.   

The Retrofit is designed to account for small variances in mailbox diminsions, to account for manufacturing variances among the different mailbox manufactures.    Also, the exact measurement may depend on whether you measure the inside of the mailbox ridge, or the outside of the mailbox or mailbox door.     The RetroFit is designed for steel and aluminum mailboxes and has not been tested for plastic mailboxes

The RetroFit insert is ideal for broken monument and brick mailboxes where removal of the original mailbox is prohibitive.  The RetroFit will also work perfection on any standard post mailbox.    The RetroFit is made of rust resistant Aluminum

Installation takes less than 5 minutes and no tools are required.    With the RetroFit, there is no need for grinders and saws to remove the protruding mailbox, and requires no glues to hold in place.    The RetroFit is a solid, permenant solution, that can easily be remove and replaced if damaged again.   Please click the Installation Tab for easy installation instructions and an informative video, 

or click here for the video on YouTube

This Kit comes with the Universal Mailbox flag which can be installed on metal, brick, stucco, stone, and monument mailboxes. It stands up to both hot and cold climates and resists fading due to sunlight. Convenient "finger grab" protects fingers when raising and lowering the flag.  Installation is required for the mailbox flag. A 5/32" masonry rated bit, 3/16 metal rated bit, or 5/32 rated wood bit will be needed depending on the type of mailbox the flag is being installed into. 

If you have additional questions about the product, installation or your particular mailbox, please email us at

Related Products

White Mailbox Door
6 1/4"(w) x 8"(h) Small RetroFit - White
MSRP: $39.95
Price: $29.95
You Save: 25 %
6 1/4"(w) x 8"(h) Small  RetroFit - White
Small White 6 1/4"(Width) by 8"(Height) RetroFit Mailbox Replacement Door by Bayshore Mailbox. Installs easily in minutes with patented snap-in replacement design. Fits virtually all standard USPS approved metal mailboxes

6 1/4"(w) x 8"(h) Small Rust Sleeve and RetroFit Door Combo
MSRP: $67.95
Price: $57.70
You Save: 15 %
6 1/4"(w) x 8"(h) Small Rust Sleeve and RetroFit Door Combo
SAVE 15% on combo door and rust sleeve.

Mailbox Flag
MSRP: $14.95
Price: $10.99
You Save: 26 %
Mailbox Flag
Replacement mailbox flag. Easy installation. Perfect for brick mailboxes as well standard mailboxes.

Product Reviews

(1 Rating, 0 Reviews) Average Rating: