How Much Can a Subaru Outback Tow: The Method, a Worked Example and the Limits

If you are asking how much can a subaru outback tow, the honest answer starts with a method, not a single number. The towing capacity of a Subaru Outback is not one figure: it changes with the year, the engine, the axle ratio, the cab and bed configuration, and whether the tow package is fitted, so any page that quotes one number for every Subaru Outback is oversimplifying. This page gives you the method first — the lowest-of-three rule, the GVWR and GCWR limits, and the tongue-weight check — then shows a worked example with clearly labelled example figures, and tells you exactly where to find the ratings that apply to your own vehicle.

Never exceed your vehicle's GVWR, GCWR or payload. Check the owner's manual and the door-jamb sticker for the ratings that apply to your exact vehicle, and treat every figure on this page as a worked example unless it comes from your own vehicle's plates.

The method: the lowest of three ratings for how much can a subaru outback tow

For how much can a subaru outback tow, the point is this: Towing capacity is the lowest of three numbers: the vehicle's tow rating, the tow-bar rating and the trailer's ATM (aggregate trailer mass — the maximum the trailer itself is rated to weigh when loaded). If any one of them is lower than the others, that one is the limit. In this page's worked example the three ratings are 5,000 lbs for the vehicle, 6,000 lbs for the tow bar and 6,500 lbs for the trailer ATM, so the towing capacity is 5,000 lbs — the lowest of the three. Those are example figures, not ratings for any particular vehicle: substitute the three numbers from your own owner's manual, tow-bar plate and trailer plate and the same step gives your answer. The reason the rule exists is that each rating protects a different part of the combination — the vehicle's engine, transmission, brakes and cooling; the tow bar and its mounting; and the trailer's axles, tyres and brakes — and the weakest of the three decides what is safe to pull.

There is a second layer of limits behind the tow rating. The loaded vehicle may not exceed its GVWR, the vehicle-plus-trailer combination may not exceed its GCWR, and the payload — the gap between kerb weight and GVWR — has to cover passengers, cargo and the tongue weight of the trailer. That last point is the one people miss: the hitch load is carried by the vehicle, so a heavy trailer shrinks the payload left for everything else. Pass the tow-rating check and still fail GCWR or payload, and the combination is overloaded. Check all three against the figures for your exact vehicle in the manual and on the door-jamb sticker.

how much can a subaru outback tow: Where to find your ratings

Four plates and documents carry the whole answer. The owner's manual lists tow ratings by engine, axle ratio and configuration and states GVWR and GCWR. The driver's door-jamb sticker gives the GVWR and payload for your exact vehicle as built. The tow-bar rating plate sits on the bar or by the receiver. The trailer's compliance plate shows its ATM and tare weight. Read all four, and if two sources disagree, use the lower figure and ask a dealer to confirm for your VIN. Ratings shift with engine, axle ratio, cab, bed length and tow package, so a figure for a different configuration — or one copied from a forum — is not a substitute.

What changes the rating on a Subaru Outback

The Subaru Outback is sold in many configurations, and the tow rating follows the configuration, not the badge. Engine choice, axle ratio, cab style, bed length, two-wheel drive versus four-wheel drive, and whether the factory tow package is fitted all move the number, sometimes by thousands of lbs. That is why this page does not quote a single figure for every Subaru Outback: manufacturer figures vary by year, engine, axle ratio and package, so confirm for your VIN. The method on this page is the same for every configuration — take the lowest of the vehicle rating, the tow-bar rating and the trailer ATM, then check GVWR, GCWR and payload — and the worked example below shows how it plays out with example figures. Once you have the three ratings from your own manual and plates, the arithmetic takes a minute.

how much can a subaru outback tow: Worked example: the three ratings and the payload check

Take a 7,000 lbs loaded trailer as the example. The vehicle's tow rating is 5,000 lbs, the tow-bar rating is 6,000 lbs and the trailer ATM is 6,500 lbs. The towing capacity is the lowest of the three: 5,000 lbs. The trailer's tongue weight at 10 to 15 percent is 700 to 1,050 lbs, and the middle of that range — about 875 lbs — is a good target. With an example payload of 1,600 lbs, the tongue weight leaves 725 lbs for passengers and cargo. If the passengers and luggage weigh more than that, the combination is overloaded even though the trailer is inside the tow rating, and something has to come off — either the trailer load or the vehicle load. That is the whole check in one paragraph: lowest of three, then tongue weight, then payload, then GCWR. Do it with your own numbers before every trip, because the answer changes every time the load changes.

how much can a subaru outback tow: Tongue weight table

The tongue-weight range below is 10 to 15 percent of the loaded trailer weight, with 12.5 percent in the middle as a practical target. Find your trailer's loaded weight in the first column and read across. Weigh the trailer as it will travel — guessing the weight makes the whole table useless. That is the point this page works through for how much can a subaru outback tow.

Loaded trailer weight (lbs) 10% tongue weight 12.5% tongue weight 15% tongue weight
3,500 350 438 525
5,000 500 625 750
6,000 600 750 900
7,000 700 875 1,050
10,000 1,000 1,250 1,500

The four checks, in order for how much can a subaru outback tow

Check What to compare Passes when
Tow rating Trailer weight vs lowest of vehicle, tow-bar and trailer ATM ratings Trailer weight is at or below the lowest rating
Tongue weight Tongue weight against 10–15% of trailer weight Percentage sits inside 10–15%
Payload Tongue weight + passengers + cargo vs payload Total is at or below payload
GCWR Loaded vehicle plus loaded trailer against GCWR Combined weight is at or below GCWR

Common mistakes for how much can a subaru outback tow

  • Trusting a figure quoted for a different year, engine or configuration. Tow ratings change with engine, axle ratio, cab and tow package, so only the numbers for your exact vehicle count. That is the point this page works through for how much can a subaru outback tow.
  • Taking how much can a subaru outback tow as the case in point: Loading the trailer tail-heavy to reduce tongue weight. Putting weight behind the axle lightens the hitch, but it is the fastest way to make a trailer sway, and sway at speed is far more dangerous than a heavy hitch.
  • On this page, how much can a subaru outback tow is the case in point: Guessing the trailer's weight instead of weighing it. Bathroom scales and guesswork are not a substitute for a weighbridge or a proper scale, and an overloaded trailer is the most common cause of towing trouble.
  • Ignoring the GCWR. A combination can be inside the tow rating and still over the GCWR once the vehicle is fully loaded with people and luggage. That is the point this page works through for how much can a subaru outback tow.

how much can a subaru outback tow: Related calculations

Taking how much can a subaru outback tow as the case in point: If this page answered your question, these pages take the next step — the same method applied to a closely related question, or the calculator that does the arithmetic for you.

Putting your figure to work for how much can a subaru outback tow

For how much can a subaru outback tow, the point is this: Putting the figure to work means doing the check with your own numbers before every trip, not once when you buy the trailer. Weigh the loaded trailer, read the three ratings off your own manual and plates, work out the tongue weight, and check the payload and GCWR. Write the four numbers down and keep them with the trailer's documents: the lowest of the three ratings, the tongue-weight range, the remaining payload and the GCWR headroom. When the load changes — a full water tank, an extra passenger, a different trailer — redo the check, because the answer changes with the load. That habit is what keeps a towing combination inside its limits on the road, not just on paper.

Frequently asked questions

How do I weigh my trailer?

On this page, how much can a subaru outback tow is the case in point: Use a weighbridge for the loaded trailer, or a tongue-weight scale for the hitch load. Weigh it loaded as it will travel — water, gas, luggage and all — because the empty weight tells you nothing about the loaded figure. Divide the tongue weight by the loaded trailer weight to check it is inside 10 to 15 percent.

Where do I find my vehicle's tow rating?

On this page, how much can a subaru outback tow is the case in point: In the owner's manual, listed by engine, axle ratio and configuration, and on the door-jamb sticker and VIN plate for your exact vehicle. The tow bar has its own rating plate, and the trailer has a compliance plate showing its ATM. If the manual and the sticker disagree, use the lower figure and ask a dealer to confirm for your VIN.

Do I need trailer brakes?

Taking how much can a subaru outback tow as the case in point: That depends on the trailer's weight and local rules: heavier trailers generally require their own brakes, and the threshold varies by country and by state. Check the trailer's ATM, the tow vehicle's manual and the local regulations. A trailer with brakes stops shorter and puts less load on the tow vehicle's brakes, which is why the braking requirement exists.

Do I need a special licence to tow?

Taking how much can a subaru outback tow as the case in point: It depends on where you are and how heavy the combination is. Licence categories limit the combined weight you may tow, and the rules differ by country. Check your licence entitlement before towing, not after you are stopped.

How much trailer can I tow?

It depends on the lowest of your vehicle's tow rating, your tow-bar rating and the trailer's ATM, capped by GVWR, GCWR and payload. In this page's worked example the lowest rating is 5,000 lbs. Substitute your own three ratings and run the same check — the answer is specific to your vehicle and your trailer, not a general figure.