Clip-on Towing Mirror for Trailers: Fit System 3891 Deluxe Universal

By: ‎Fit System

Fit System 3891 Deluxe Universal Clip-on Trailer Towing Mirror is the best choice for your towing needs. With its superior packaging, customer support, easy installation, and convenience, you can rest assured that your trailer will be securely attached and your towing experience will be hassle-free. Fit System's Deluxe Universal Clip-on Trailer Towing Mirror is the perfect solution for all your towing needs.
92
B2B Rating
212 reviews

Review rating details

Value for money
90
Size
88
Packaging
88
Overall satisfaction
91
Easy to install
93
Design
90
Customer support
92
Convenience
89
Compatibility
88
Build quality
92

Details of Clip-on Towing Mirror for Trailers: Fit System 3891 Deluxe Universal

  • Mounting Type: ‎Door Mount
  • Country of Origin: ‎Taiwan
  • Product Dimensions: ‎17.5 x 6.6 x 4 inches
  • Special Features: ‎Extra large mirror ,Reachet lock system
  • International Shipping: This item can be shipped to select countries outside of the U.S. Learn More
  • Color: ‎Black
  • ASIN: B001AJH1HK
  • Shape: ‎Rectangular
  • MaterialPlastic: Fit TypeUniversal Fit
  • Voltage: ‎12 Volts
  • Item Dimensions LxWxH: ‎17.5 x 6.6 x 4 inches
  • Batteries: ‎1 Unknown batteries required.
  • Included Components: ‎K-Source 3891 Towing Mirror Ratchet Mount
  • Auto Part Position: ‎Front
  • Domestic Shipping: Item can be shipped within U.S.
  • Is Discontinued By Manufacturer: ‎No
  • Item model number: ‎3891
  • Date First Available: May 30, 2008
  • Manufacturer Part Number: ‎3891
  • Manufacturer: ‎K-SOURCE
  • Best Sellers Rank: #12,142 in Automotive #4 in Towing Hitch Towing Mirrors
  • Brand: ‎Fit System
  • Special Feature: ‎Extra large mirror ,Reachet lock system
  • Model: ‎3891
  • Operation Mode: ‎Manual
  • Item Weight: ‎1.5 Pounds
  • Customer Reviews: 4.3/5 stars of 3,622 ratings
  • Item Weight: ‎1.5 pounds

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Comments

Val: Very good fit for side mirrors of my Rav 4, nice and safe, very good back observation. Highly recommend.

Canada on Oct 13, 2023

H. T.: These strap on mirrors just would not it my vehicles, as noted. However, well made and should be very nice when on an OEM mirror that it will fit on.

United States on Oct 08, 2023

Monte F.Monte F.: I'm sure these mirrors will fit many different autos but they have a tendency to slip off on my Jeep Grand Cherokee. The frames on the Jeeps side mirrors are not parallel and the forward side of the mirrors are convex and tapered. I solved this by adding key rings to the upper and lower arms of the extension mirrors and hooking a bungee to them. See the photos. With the bungee in place I don't have to ratchet the straps down nears as much as without the bungee. Just finished a 2700 mile trip. Mirrors are so solid they never moved. Very little vibration. I hit them several times while cleaning the windshield. My wife and I both ran into them by accident. Still never moved or needed adjustment. Based on what others have said I expect the straps to break in a couple of years. Replacement straps shouldn't cost as much as a new mirror. If the company would offer replacement parts, especially the straps, at a reasonable price I would give them 5 stars. One more note. Once I had them mounted, I applied some black RTV silicone to the four points on each mirror where the ratchet straps attach to the short straps. When I release the tension on the straps to remove them, everything comes off...

United States on Oct 03, 2023

JSSussex: Bought these to replace my slightly short mirrors. These work way better. Easy on and off and they have a better coverage because of the slightly curved wide-angle lens. The lever tension clamps make them securely attaché to the Traverse's mirrors.

United States on Oct 03, 2023

amazon loveramazon lover: The mirror fits my 2007 Toyota 4Runner well. Solid fit. After 5 seasons (WI) the flexible rubber on 2 of the 4 straps failed within days of each other. The replacement straps cost $38 and a new mirror $39. Would give 5 stars, but I guess 5 years longevity isn’t 5-star worthy. I will buy the same mirrors to replace them.

United States on Sep 27, 2023

Fort Wayne: The mirrors got us the wide extension we needed for highway use. Both mirrors are slightly convex, meaning objects appear smaller than they are, and objects are a bit distorted, one mirror more than the other. The strapping, once it is snug, stays in place and has never moved but until you start getting it snug, it has a tendency to come unattached from the mirror arm. Now that I have used them a number of times, I'm getting better at getting them attached quicker the first time.

United States on Sep 12, 2023

NeverBuyChina: The strap on versions of mirror like this one are the only options… I’ve tried alternatives and they all fall off except this version.

Canada on Sep 10, 2023

Andrew Coe: Recommended.

I purchased a pair of these for my 2023 Colorado since custom-fit ones aren't available. You have to fiddle a bit on the clips to get it to fit well, but once you do, they fit well. Because of the slope of the back of the mirror, you will need to get the straps "just so" to get them to fit without danger of slipping. For me, the top of the bracket was as far towards the door as it could go, while the bottom slightly farther away, with maybe an inch gap from the door-side edge of the mirror.

The strap mechanism seems to work well. The ratchet to tighten is easy to do, and the release is also a snap. On a short 2-hour haul with my trailer, I found the mirrors to be solid, slip-free, and there was very little vibration...there was very little "Jell-O" in the image, even at highway speeds. The mirrors themselves have a slight convex shape like a normal passenger-side mirror to increase the field of view. As a bonus, they didn't seem to interfere too much with the blindspot cameras on the underside of mirror.

I've had different universal mirrors in the past, and these ones are better than average. Most give a vibrating image with the constant danger of...

Canada on Jun 20, 2023

Roger T.: Good quality but difficult to hold all the components/pieces together from falling apart to the ground before enough ratcheting tension prevents loose strap connecting points from easily undoing (4 strap connectors are a weak click-together design). Too much time/finnesse to get it to piggy-back onto my nissan frontier mirror body while straps threaten to disconnect; but once tightened in place, they work great! I have a chunky hockey puck shaped blind-spot sensor that helps stop straps from vibrating off while driving. If you don't have a bulky sensor housing at the end of your factory mirrors, these mirrors would slowly slide off sideways while driving if your side mirrors taper outword like cat eyes ( like my nissan frontier has). They vibrate a wee bit while driving on expressway, over bumps, etc... but you can still see vehicles clearly dispite minor wobbling. I'd buy them again if lost or stolen.

Canada on May 24, 2023

Wink: We got them so we can improve visibility while towing our new caravan. They should do the job. A bit fidgety to install but fit tightly.

Australia on May 13, 2023

Clip-on Towing Mirror for Trailers: Fit System 3891 Deluxe Universal Fit System 81850 Snap-On Tow Mirror Pair - Quickly & Easily Add Rearview Visibility to Your Vehicle Fit System 80920 Towing Mirrors for Cars - Easy Snap and Zap Installation
Clip-on Towing Mirror for Trailers: Fit System 3891 Deluxe Universal Fit System 81850 Snap-On Tow Mirror Pair - Quickly & Easily Add Rearview Visibility to Your Vehicle Fit System 80920 Towing Mirrors for Cars - Easy Snap and Zap Installation
B2B Rating
92
97
96
Sale off $32 OFF $9 OFF
Total Reviews 212 reviews 1 reviews 157 reviews
Mounting Type ‎Door Mount ‎Door Mount ‎Door Mount
Country of Origin ‎Taiwan ‎Taiwan ‎Taiwan
Product Dimensions ‎17.5 x 6.6 x 4 inches ‎17 x 11 x 9.5 inches
Special Features ‎Extra large mirror ,Reachet lock system
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Color ‎Black
ASIN B001AJH1HK B01DNPD514 B01DNPD3F2
Shape ‎Rectangular ‎Rectangular ‎Rectangular
MaterialPlastic Fit TypeUniversal Fit
Voltage ‎12 Volts ‎12 Volts
Item Dimensions LxWxH ‎17.5 x 6.6 x 4 inches ‎17 x 11 x 9.5 inches
Batteries ‎1 Unknown batteries required.
Included Components ‎K-Source 3891 Towing Mirror Ratchet Mount ‎Driver and Passenger Mirror Extensions ‎Driver and Passenger Mirror Extensions
Auto Part Position ‎Front ‎Right ‎Front
Domestic Shipping Item can be shipped within U.S.
Is Discontinued By Manufacturer ‎No ‎No
Item model number ‎3891 ‎81850 ‎80920
Date First Available May 30, 2008 March 31, 2016 March 31, 2016
Manufacturer Part Number ‎3891 ‎81850 ‎80920
Manufacturer ‎K-SOURCE ‎No ‎K-Source Inc.
Best Sellers Rank #12,142 in Automotive #4 in Towing Hitch Towing Mirrors #48,335 in Automotive #75 in Towing Hitch Towing Mirrors #233,717 in Automotive #379 in Towing Hitch Towing Mirrors
Brand ‎Fit System ‎Fit System ‎Fit System
Special Feature ‎Extra large mirror ,Reachet lock system
Model ‎3891 ‎81850 ‎80920
Operation Mode ‎Manual
Item Weight ‎1.5 pounds ‎3.3 Pounds ‎2.49 pounds
Customer Reviews 4.3/5 stars of 3,622 ratings 4.6/5 stars of 3,273 ratings 4.5/5 stars of 457 ratings
Item Weight ‎1.5 pounds ‎3.3 Pounds ‎2.49 pounds
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