What is the Difference Between the K-Source Universal Towing Mirrors
Updated 11/17/2025 | Published 12/13/2024
Products Featured in This Question
Question:
difference between KS3990 and KS3891-2 PLEASE
asked by: Jack
0
Expert Reply:
Hey Jack,
The difference between the K-Source # KS3990 and K-Source # KS3891-2 is the first one has dual lenses while the second one has single lenses. I've messed with both of these and the dual lenses are definitely better because you get to adjust both of them individually. This maximizes your viewing angles so you have a safer towing experience.
I actually got the opportunity to test fit these on a 2019 Audi Q7 so I'm attaching that video to this page for your reference.
expert reply by:
Jon G
0
Dual Lens K-Source Towing Mirror
(click to enlarge)
(click to enlarge)
Single Lens K-Source Towing Mirror
(click to enlarge)
(click to enlarge)
Product Page this Question was Asked From
K-Source Universal Dual Lens Towing Mirrors - Clip On - Pair
- Towing Mirrors
- Clip-On Mirror
- Manual
- Pair of Mirrors
- Universal Fit
- Fits Driver and Passenger Side
- K Source
more information >
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Jon G.
11/17/2025
Hey Jack, how did things go with the dual lens towing mirrors on your setup? Your feedback could really help others deciding between the single and dual lens options.