How To Retrofit the Replacement Lock Core and Key On a Sears Sport SV-20 Cargo Box
Updated 09/02/2025 | Published 06/12/2019
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Question:
I ordered a lock core, bottom bracket and lock locator from you guys to replace the nonworking lock on my carrier. I was wondering if you have an instructional video or sheet on what it take to make the retrofit parts work. Attached is a picture of my nonworking lock. What I ordered is SR03807, SR00841, and TH03808.
asked by: Ron N
Expert Reply:
In order to retrofit the Replacement Lock Core and Key part # SR03807 and Replacement Lock Locator part # TH03808 to the top lid on your cargo box you would need to drill out the two rivets for the old lock and then drill a new 5/8" hole for the new lock core. The lock can then be secured in the hole via the included nut.
In regards to retrofitting the Replacement Bottom Lock Bracket SR00841 to the bottom lid, I unfortunately don't have much advice on this but it will be similar to the above in that you need to drill the old bracket out and then install the new one but this time with either bolts or screws of your own. I would just make sure you have everything lined up properly.
Product Page this Question was Asked From
Replacement Lock Core and Key for SportRack Explorer Cargo Box - Qty 1
- Accessories and Parts
- Roof Box
- Lock Parts
- Thule
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Keirg
9/1/2025
We have an sport20-SV also. We have the replacement lock and core but it doesn't work with the catch on the box. Does the locator create the the new catch? Do you have a picture of the retrofit installed on the box?