Direct: (503) 987-4002
Main: (503) 987-4000


The RotopaX Replacement Lock Cylinder is the replacement part for any LOX Pack Mount or LOX T-Handle where the lock cylinder has seized, been lost, or is no longer functioning correctly. Two keys are included. If your current lock cylinder has seized due to weather exposure and will not turn, RotopaX recommends starting with a penetrating lubricant like WD-40 or PB Blaster before replacing — in many cases that is enough to free a stuck cylinder. If the cylinder is fully seized and will not respond to lubricant, it can be removed by unbolting the pack mount from beneath the container or by drilling straight down into the lock cylinder with a 5/16-inch drill bit until it clicks and disengages, at which point the replacement cylinder drops right in.
This is a straightforward replacement part — the lock cylinder only, with two keys included. It is not a complete LOX T-Handle or LOX Pack Mount. If you need the full handle assembly, order the LOX T-Handle. If you need a complete mount, order the LOX Pack Mount.
As with every LOX component, store one of the two included keys in a safe location separate from your vehicle — RotopaX does not carry replacement keys, so if both are lost, the only option is to replace the cylinder again.
We ship nationwide and internationally. Most in-stock items leave our shop within 1–3 business days. Made-to-order and oversized parts may require additional lead time; any special timing will be noted on the product page.
If an order is placed outside of our normal business hours (Monday–Friday), we will process it as soon as possible once our team is back in the shop during regular operating hours. Weekend orders will be handled the next business day.
We want you stoked on your gear. Eligible items may be returned within 30 days of delivery for a refund or exchange.
Many products include a manufacturer warranty. We’re happy to help facilitate claims—reach out with your order number, photos, and a description of the issue.
Questions about shipping or returns? Get in touch—our team is here to help you get trail-ready.
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