Skip to content

CompX National Mailbox Keys

Replacement keys for CompX National mailbox locks. They fit cluster box units, parcel lockers and apartment mailboxes. Every key is cut to code to match your original.

Your key code is stamped on the front of the lock. On some mailboxes it is on the metal tab at the back instead. Mailbox codes often end in letters as well as numbers, so write the whole code down.

CompX National builds the compartment locks used in cluster box units, gang mailboxes, horizontal apartment boxes and parcel lockers. If your CBU key is long gone, the code on the lock is all we need to cut a new one. Where no code is left, replacing the lock is the way back in, and new keys come with it.

Can't find what you need? Contact us by phone, email or live chat. Our US-based customer service team is here to help.

Find your code

image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3822AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3822AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3823AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3823AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3820AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3820AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3819AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3819AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3825AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3825AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3824AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3824AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3821AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3821AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3813AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3813AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3818AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3818AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3817AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3817AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3811AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3811AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3814AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3814AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3815AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3815AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3816AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3816AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3812AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3812AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3809AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3809AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3810AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3810AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3807AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3807AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3808AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3808AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3806AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3806AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3803AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3803AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3804AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3804AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3805AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3805AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3802AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3802AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3801AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3801AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3800AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3800AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3799AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3799AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3797AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3797AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3794AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3794AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3795AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3795AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3792AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3792AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3798AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3798AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3790AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3790AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3791AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3791AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3796AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3796AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3793AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3793AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3789AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3789AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3787AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3787AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3788AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3788AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3784AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3784AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3783AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3783AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3785AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3785AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3786AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3786AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3775AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3775AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3782AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3782AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3780AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3780AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3778AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3778AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87
image 0
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87

CompX National 3781AP Mailbox Replacement Key

CompX National

Mailbox Replacement Key with code 3781AP for CompX National Key Series 0001AP - 5700AP. Compatible with Manufacturers: CompX National! Compatible ...

View full details
$8.87 - $8.87
$8.87
$8.87 - $8.87
$8.87