How to Select a Trailer Hitch
Official CURT overview of hitch classes and why the vehicle-specific card matters more than a generic class label.
Watch on YouTube →What Hitch Class Do I Need? (Canada)
Not sure whether you need a Class 1, Class 2, Class 3, or Class 4 hitch in Canada? Start with how you will use the receiver — bike rack versus real towing — then think in tongue weight and trailer weight, not brochure bragging rights. This guide keeps the decision in plain English, points you to deeper pages when you need them, and does not invent provincial legal cutoffs.
Practical class help for Canadian shoppers. Free shipping on CURT hitches and towing gear from Lots of Parts.
Pair this page with
Class 3 versus Class 4,
tongue weight explained,
receiver size guide, and
do I need a brake controller.
Prefer the full index?
Open the towing guides hub.
Watch these CURT videos first
All four videos are from the official CURT YouTube channel (@curtmfg). Start with hitch selection, then ball-mount and wiring habits. The technique clip helps once you know which class your vehicle actually accepts.
If an embed does not load, use the YouTube link under the card.
Ball Mount and Trailer Ball
Class picks the receiver family. The ball mount still has to match shank size, drop or rise, and tongue-weight rating.
Watch on YouTube →Trailer Wiring Harness Basics
Class does not wire the trailer for you. Lights and brakes are separate shopping steps once the receiver is on.
Watch on YouTube →CURT Install Techniques
Good habits after you pick a class that actually fits your vehicle’s CURT application.
Watch on YouTube →Think tongue weight, then trailer weight
Hitch class labels describe a receiver family and a typical capacity band on the hitch card. They are not a permission slip past your vehicle’s tow rating, payload, or tongue limit. In the real world, tongue weight is what loads the rear axle and what rack manufacturers care about when you hang bikes or a cargo box on the receiver.
Trailer weight is the full loaded trailer. Tongue weight is the downward force at the coupler — often in a ballpark of about 10 to 15 percent of trailer weight for many conventional trailers, but you should measure rather than assume. If those ideas are fuzzy, read tongue weight explained before you chase a higher class number.
The lowest rating among the vehicle, hitch, ball mount, ball, and trailer always wins. A Class 4 hitch on a crossover that is only rated to tow lightly does not create a heavy-tow truck.
Bike rack versus real towing
Accessories
Bike racks and cargo carriers
Many Canadian shoppers want a hitch mainly for bikes or a cargo box. That is still a tongue-weight problem. Platform racks with e-bikes add up fast. A Class 1 or Class 2 receiver can be enough when the vehicle and rack ratings agree — but a 2 inch Class 3 opening often makes accessory shopping easier because so many racks expect that shank size. See the bike rack and cargo carrier guide.
Trailers
Utility, boat, and camper towing
Once a trailer is on the ball, you care about trailer weight, tongue weight, lights, and often brakes. Class 3 is the everyday sweet spot for a huge range of cars, crossovers, SUVs, and light trucks that CURT builds 2 inch receivers for. Stepping to Class 4 is about hitch hardware capacity and vehicle fit — not a magic legal upgrade. Compare details on Class 3 versus Class 4.
Class 1 versus 2 versus 3 versus 4 in plain English
| Class | How to think about it |
|---|---|
| Class 1 | Light-duty receivers, often on cars and small crossovers. Commonly a 1.25 inch opening. Fine for light accessory loads and very light trailers when the vehicle rating allows it. Do not assume every bike rack will fit the opening. |
| Class 2 | Still typically a 1.25 inch receiver, with more hitch-card capacity than many Class 1 options. Useful when CURT’s application for your SUV points here and your tongue-weight needs stay modest. Accessory choice is narrower than the 2 inch world — read the receiver size guide. |
| Class 3 | The sweet spot for a lot of Canadian shoppers. Usually a 2 inch receiver, strong everyday towing within vehicle limits, and the widest accessory ecosystem. If your vehicle has a Class 3 CURT card and you tow utility trailers, boats, or small campers — or you want common 2 inch racks — this is where most people land. |
| Class 4 | Higher hitch-card ratings on trucks and SUVs that CURT builds a Class 4 for. Still limited by the vehicle. Choose it when the application and your trailer weights justify the step up, not because a bigger number feels safer. Details live on the Class 3 versus Class 4 guide. |
Exact pound ratings vary by CURT part number. Always read the card for your vehicle. We are describing shopping patterns here, not publishing a universal capacity chart.
When Class 3 is the sweet spot
Class 3 earns its reputation because it sits where vehicle capability, hitch hardware, and accessory availability overlap for so many trucks and SUVs. A 2 inch opening accepts common ball mounts without reducer drama. Weight-distribution ratings appear on many Class 3 cards when the trailer setup needs them. And you are less likely to paint yourself into a corner if you start with bikes and later add a small utility trailer.
Class 3 is not automatic. Some vehicles only have a Class 1 or Class 2 CURT application. Some heavy trucks have Class 4 or higher hardware that matches how they are used. The right answer is the class CURT lists for your year, make, and model that still sits under the vehicle’s own ratings.
A simple decision path
Step 1Name the job
Bike rack only, light utility trailer, boat, or camper? Write down loaded trailer weight if you already own the trailer.
Step 2Check the vehicle
Owner’s manual or door-jamb tow package notes beat hitch marketing. If the vehicle is not rated to tow, a hitch is for accessories only.
Step 3Match the CURT card
Open your vehicle guide or year lander and see which classes CURT actually lists. Do not order a Class 4 for a car that only has a Class 1 application.
Step 4Plan lights and brakes
Receivers do not include wiring. Trailers with electric brakes usually need a controller conversation — see do I need a brake controller. We do not invent provincial weight cutoffs on this page; follow your trailer, your province’s rules, and the manufacturer instructions.
What this page will not do
Legal
No invented cutoffs
Brake and lighting rules vary. We point you to practical gear guides instead of inventing a single Canada-wide pound limit.
Fitment
Class is not universal
A Class 3 for a Tiguan is not the same part as a Class 3 for a Sierra. Vehicle-specific SKUs still matter.
Ratings
No brochure upgrades
Buying a higher class than the vehicle supports does not raise the VIN’s tow rating.
Accessories
Opening size matters
1.25 versus 2 inch changes which racks and mounts fit. Confirm shank size before you fall in love with a rack photo.
Related guides
Class 3 versus Class 4Deeper comparison when you are stepping up
Tongue weight explainedThe number that loads the rear axle
Receiver size guide1.25 versus 2 inch openings
Brake controller guideWhen electric brakes usually need one
Hitch buying guideStart-here shopping overview
Towing guides hubAll vehicle and topic guides
Shop trailer hitches
Browse CURT Class 1 through higher receivers with free shipping from Lots of Parts in Canada.
Open hitch collection →Pick the class your vehicle’s CURT card supports, stay under the truck or SUV rating, and size the opening for the accessories you will actually buy.
Lots of Parts · Plain-English hitch class help for Canadian shoppers. No fake reviews, no invented legal cutoffs — just tongue-weight mindset and honest class shopping.
