Will Extendable Towing Mirrors Fit a 2018 Duramax?
Updated 11/04/2025 | Published 02/06/2025
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Question:
Will this fit s 2018 Duramax ? Do 2018 gmc sierra and the 2018 duramax use the same towing mirrors?
asked by: Paul
Expert Reply:
Hey Paul, thanks for reaching out!
While the K-Source Custom Extendable Towing Mirrors # KS62137-38G will fit both the 1500 and 2500 versions of a 2018 GM pickup, they unfortunately won't fit the Duramax model - this is the case for all of the extendable towing mirrors.
You might be able to get away with the K-Source Universal Towing Mirrors # KS3891-2, but you'll need to check to see if your mirrors fit within the 4-1/2" to 11-1/2" tall fit range of these.
Are you mainly needing these for things like lane changes, or more for just general use?
Product Page this Question was Asked From
K-Source Custom Extendable Towing Mirrors - Manual - Textured Black - Pair
- Towing Mirrors
- Full Replacement Mirror
- Manual
- Pair of Mirrors
- Custom Fit
- Fits Driver and Passenger Side
- Blind Spot Mirror
- Extendable
- Folding
- K Source
more information >
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Jon G.
10/30/2025
Hey Paul, did you get a chance to try the universal towing mirrors on your Duramax? It’d be great to hear if they fit within that size range. Your update could make it easier for others with the same truck.