Best Tow Mirrors for a Travel Trailer
Your trailer is wider than your truck. Factory mirrors show you the side of the trailer and nothing past it, which is the one thing you need to see.
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The short answer
Measure the height of your factory mirror glass and housing, then buy a clip-on rated to fit that measurement — the common adjustable clip-on covers a factory mirror 7 to 10 inches tall and adds 7 inches of width per side. Buy two: these are sold one mirror at a time, and the single most common mistake in this category is ordering one.
Part of our towing and security guide. Our camera pages keep saying that a screen in the cab does not replace extended mirrors, and this is the page that finally answers the obvious follow-up: which mirrors, and how do you know they fit your truck?
Our picks at a glance
Tap any row to jump to the full write-up.
| # | Product | Best for | Beginner fit | Price |
|---|---|---|---|---|
| 1 |  CIPA Adjustable Clip-On Towing MirrorThe starting point: a clip-on that fits a stated mirror size range, costs little, and comes off when you are not towing. | A first set of towing mirrors | Strong | |
| 2 |  CIPA Universal Fit Towing Mirror (11980)The one to try when a plain clip-on will not sit right on your mirror: adjustable mounts and a bigger piece of glass. | Oddly shaped factory mirrors | Good | |
| 3 |  K Source Universal Clip-On Towing MirrorThe one with the widest stated fit: a tool-free clip-on listed for factory mirrors up to 11 inches tall. | Factory mirrors up to 11 inches tall | Good |
Prices come from Amazon and were last checked November 12, 2026. They change constantly, so a price older than 48 hours is withdrawn rather than shown stale — those rows read “Check price on Amazon” instead and go straight to the current listing. #ad — these are affiliate links.
Who this is for
Someone towing a travel trailer behind a half-ton truck or an SUV whose mirrors were designed for a vehicle with nothing behind it. Walk back 20 feet from the driver’s door and look at the trailer: if it is wider than the truck’s body, your factory mirror is showing you the trailer’s skin and hiding the lane beside it. That is the problem these solve.
If you tow with a truck that came with factory extendable tow mirrors — the ones that pull out on a rail — you already have the answer and should not buy anything. Pull them out, aim them, done.
How we choose
Published fit range first. The word “universal” does not fit a mirror; a stated size range does. A product that publishes the factory mirror height it clips to lets you measure your own mirror with a tape and know the answer before you order. A product that only says it fits most vehicles is asking you to find out by trying.
Then how much width it actually adds. The point of a towing mirror is the extra inches outboard of your existing glass. Seven inches is enough to see down the side of a typical travel trailer. It is not enough for a wide fifth wheel, and no clip-on is.
Then how it holds still. Every strap-on mirror vibrates more than a bolted one. What separates them is whether the mount pulls tight against the housing in two places or one, because a single contact point lets the mirror rock at highway speed and a shaking mirror is close to useless.
Then how quickly it comes off. You are towing on some weekends and not on others. A mirror that takes a minute per side comes off; one that takes ten minutes stays on all season, scratching the housing and whistling at 65 mph.
We do not test these in a lab and we do not claim to. The figures below are each manufacturer’s own published specifications, linked at the end of the page. Full methodology here.
The three routes, and which one you are on
Before picking a product, work out which category you belong in. This is the step that saves a return.
How towing mirrors attach
| Route | How it mounts | Who it suits |
|---|---|---|
| Universal clip-on | Straps and a clamp around your existing mirror housing, no tools | Most first-season trailer owners. Cheapest, and reversible |
| Custom snap-on | Snaps over one specific truck's mirror housing, molded to match it | Common trucks with a part number that exists for that exact year range |
| Replacement mirror | Unbolts the factory mirror and replaces it, wiring included | People who tow most weekends and want it permanent |
This page recommends in the first category only, and that is a deliberate limit rather than an oversight. A custom snap-on is often the better product — it is molded to one housing, so it sits tighter and rattles less — but the part number depends on your exact year, make, model and whether the factory mirror carries a turn signal or a puddle lamp. We cannot recommend a snap-on to a reader whose truck we do not know, so the honest advice is: search your year and model plus “snap-on towing mirror” first, and if a part exists for your truck, buy that instead of anything below. If it does not, a universal clip-on is the answer.
The picks
1. Best for A first set of towing mirrors
CIPA Adjustable Clip-On Towing Mirror
The starting point: a clip-on that fits a stated mirror size range, costs little, and comes off when you are not towing.
- Specification
- Clips over a factory mirror 7 to 10 inches tall
- Specification
- 4.75 x 7.5 inch mirror face
- Specification
- 7 inches of total extension
What it does well
- Goes on and comes off in under a minute with no tools, so the truck looks normal again when the trailer is parked
- The published fit range is an actual measurement rather than the word universal, so you can measure your own mirror before you buy
- The cheapest honest route to a towing view on a vehicle whose factory mirrors are too narrow
The real tradeoff
- Sold one mirror at a time. You need two, and the listing does not always make that obvious
- Any strap-on mirror vibrates more at highway speed than a bolted one, and the tighter the straps the less it moves
- Seven inches of extension is enough for a narrow single-axle trailer and not enough for a wide fifth wheel
How it measures up
These are judgments from published specifications and what we see at the lodge, not laboratory results. How we choose.
- Beginner fit
- Strong — Straps and a knob. Nothing to install.
- Stability at speed
- Adequate — Strap-on mirrors move. Tighten properly.
- Extra width gained
- Good — Seven inches, which covers most travel trailers.
- Value
- Strong — The least money that solves the problem.
Specifications from CIPA.
2. Best for Oddly shaped factory mirrors
CIPA Universal Fit Towing Mirror (11980)
The one to try when a plain clip-on will not sit right on your mirror: adjustable mounts and a bigger piece of glass.
- Specification
- 7.25 x 4.5 inch glass
- Specification
- Adjustable dual mounts, clamp-on or clip-on
- Specification
- Fits either side, sold individually
What it does well
- The adjustable dual mounts fit housings a single fixed clip cannot, which is the usual reason a cheap clip-on gets returned
- Larger glass than most clip-ons in the same price class
- Made in Port Huron, Michigan, and carries a limited one-year warranty
The real tradeoff
- Sold both singly and as a two-mirror kit depending on the listing, so check what is in the box before you order
- More parts to set up than a simple strap-on, and the first fitting takes a few minutes per side
- Published fitment is described as most mirror housings rather than a measured range, so check your own housing
How it measures up
These are judgments from published specifications and what we see at the lodge, not laboratory results. How we choose.
- Beginner fit
- Good — No tools, but more adjustment than a basic clip.
- Stability at speed
- Good — Clamps bite harder than straps alone.
- Extra width gained
- Good — Larger face, mounted outboard.
- Value
- Good — A small premium for fitting awkward housings.
Specifications from CIPA 11980 specifications.
3. Best for Factory mirrors up to 11 inches tall
K Source Universal Clip-On Towing Mirror
The one with the widest stated fit: a tool-free clip-on listed for factory mirrors up to 11 inches tall.
- Specification
- Standard size, listed as fitting mirrors up to 11 in.
- Specification
- Clips on with straps - no drilling, cutting or tools
- Specification
- Mounts on either the driver or passenger side
What it does well
- The widest published fit range here, which is the answer for a tall truck mirror a 10-inch clip-on will not grip
- Clips on with no tools and comes off the same way, so it is only on the truck when you are towing
- Either side, so you are buying the same part twice rather than a left and a right
The real tradeoff
- Published fitment is a maximum, not a range, so a small SUV mirror may sit loose in it
- Neither the glass dimensions nor the extension gained are published, so you cannot compare width on paper
- Same strap-on caveat as the rest: it moves more at speed than a bolted mirror
How it measures up
These are judgments from published specifications and what we see at the lodge, not laboratory results. How we choose.
- Beginner fit
- Good — Clips on, then you aim it.
- Stability at speed
- Good — Straps, tightened in stages.
- Extra width gained
- Adequate — Not published. Set it where you need it.
- Value
- Good — Fair for the fit range.
Specifications from K Source universal towing mirrors.
Published specifications, side by side
| CIPA adjustable clip-on | CIPA universal fit 11980 | K Source clip-on | |
|---|---|---|---|
| Stated fitment | Factory mirror 7 to 10 in. tall | Most mirror housings | Mirrors up to 11 in. |
| Glass size | 4.75 x 7.5 in. | 7.25 x 4.5 in. | Not published |
| Extension | 7 in. total | Not published | Not published |
| Mounting | Rubber straps, tool-free | Adjustable dual mounts, clamp or clip | Straps, tool-free |
| Fits either side | Yes | Yes | Yes |
| Sold as | One mirror | Single or kit - check the listing | Check the listing |
“Not published” above means exactly that: the manufacturer does not publish the figure, so we are not printing one. The clip-on leads this page precisely because it is the product that publishes the most, and a number you can check against your own tape measure is worth more than a bigger number you cannot verify.
Measure before you order, in two minutes
Take a tape to the driver’s mirror on your tow vehicle and write down two numbers.
The height of the housing, top to bottom, at its tallest point. This is the number the fit ranges refer to. If it is between 7 and 10 inches, the adjustable clip-on fits. If your truck has a tall rectangular mirror above that range — common on three-quarter-ton trucks — you are in custom snap-on or replacement territory, and a clip-on sized for a sedan will not grip it.
The depth front to back. A deep housing with a sharply curved back is what defeats a single-clip design, and it is the case the adjustable dual mounts on the 11980 exist for.
Then check for the two things that complicate a mount: a turn signal repeater in the glass, and a puddle lamp underneath. A clip-on that covers either one is a problem; both are reasons to look for a snap-on cut around them.
Fitting and aiming them properly
Fitting is the easy half. Aiming is where people leave most of the benefit on the table.
Fit them with the trailer hitched, not in the driveway alone. The whole aim depends on where the trailer’s sides are, so you cannot set it without the trailer there.
Aim for the lane, not the trailer. The instinct is to center the trailer in the new mirror, which wastes it: your factory mirror already shows the trailer. Set the extension so the inside edge of its view just catches the trailer’s side, and everything beyond that is lane. Now the two mirrors together show you the trailer and the traffic.
Tighten in stages and re-check after the first few miles. Straps settle. A mirror that was tight in the campground is loose on the interstate, and ten seconds at the first gas stop fixes it for the rest of the trip. Add it to your towing safety checklist so it is not something you have to remember.
Take them off when you are not towing. Not for looks. A strap-on mirror left in place for months works grit against the housing paint, and the extra width is a liability in a parking garage.
Mirrors and cameras do different jobs
A camera does not replace these and these do not replace a camera, which is worth being clear about because the two get sold as alternatives.
A mirror shows you the lane alongside and behind the trailer, in real time, with no lag and nothing to fail. That is the view you need to change lanes, and it is the view a state’s towing rule is written about. A rear camera shows you the one thing no mirror can: what is directly behind the trailer at ground level. That is the view you need to back into a site and to see the car tailgating you.
Buy mirrors first, because they are cheaper and they cover the legal requirement. Then read the RV backup camera roundup if you want the rear view, or best RV rear view camera if what you actually want is a continuous view while driving rather than a reversing aid.
What we would skip
Suction-cup mirrors. They exist and they are cheap. A suction cup on a painted panel in direct sun, holding a mirror in a 65 mph airstream, is a design we would not trust with the one view we actually need.
Convex stick-on blind spot discs as a substitute. They are a genuine improvement for a few dollars, and they are not towing mirrors. They widen the view from your existing glass; they do not move your eye point outboard of a trailer that is wider than the truck.
One mirror. Already said, and worth saying twice. The passenger side is the harder side to see and the driver side is the one you use to change lanes. You need both.
Pick by what your mirror looks like
A plain housing between 7 and 10 inches tall: the adjustable clip-on. A deep or oddly shaped housing: the 11980 with its dual mounts. A tall truck mirror up to 11 inches: the K Source clip-on.
Best for A first set of towing mirrors
CIPA Adjustable Clip-On Towing Mirror
The starting point: a clip-on that fits a stated mirror size range, costs little, and comes off when you are not towing.
Best for Oddly shaped factory mirrors
CIPA Universal Fit Towing Mirror (11980)
The one to try when a plain clip-on will not sit right on your mirror: adjustable mounts and a bigger piece of glass.
Best for Factory mirrors up to 11 inches tall
K Source Universal Clip-On Towing Mirror
The one with the widest stated fit: a tool-free clip-on listed for factory mirrors up to 11 inches tall.
The rest of the first towing setup
Mirrors are one of four things that decide whether the drive to the campground is calm. The others are a hitch set up correctly, tires at the right pressure, and knowing what the trailer is doing behind you. If you are working through all of it for the first time, how to hitch a travel trailer covers the coupling sequence, tire pressure monitoring covers knowing about a tire before it fails, and the RV tire inflator roundup covers fixing a low tire once you know about it.
The one maneuver mirrors matter most for is the one at the end of the drive, and it is the part beginners dread: how to back up a travel trailer covers reading the mirror, the hand position trick and the practice that makes it stick.
Questions people actually ask
Do I need tow mirrors for a travel trailer?
If the trailer is wider than your tow vehicle and your factory mirrors cannot see past it, yes. Mirror requirements for towing are set by state law and vary, so check your own state's wording. The practical test is whether you can see the road behind the trailer's rear corner from the driver's seat.
Are towing mirrors sold in pairs?
Usually not. Most universal clip-on and clamp-on towing mirrors are sold one mirror at a time so a buyer who needs only the passenger side pays for one. Towing a travel trailer needs both sides, so check the quantity before checking out.
How do I know a clip-on towing mirror will fit my truck?
Measure the height of your factory mirror housing at its tallest point and compare it with the product's published fit range. The adjustable clip-on on this page states a range of 7 to 10 inches. Products that only claim universal fitment give you nothing to measure against.
Do clip-on towing mirrors vibrate at highway speed?
Some movement is normal for any strap-on mirror. It is reduced by tightening the mount in stages, fitting it with the trailer hitched, and re-checking the straps after the first few miles. A mirror clamped at two points on the housing moves less than one held at a single point.
Can a backup camera replace towing mirrors?
No. A camera shows what is directly behind the trailer, which no mirror can, and a mirror shows the lane alongside and behind it, which no rear camera can. State towing rules are written about mirrors. Buy mirrors first, then add a camera if you want the rear view.
Sources
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Reviewed October 12, 2026. Spot something out of date? Tell us and we will fix it.