Start with your vehicle placard or handbook and match the minimum load index listed there. 275/65 R17 is commonly available with higher load ratings suited to 4x4s and pickups, but you should not go below the required rating for your axle loads. If you tow regularly, prioritise a tyre with a higher load index and a robust construction that meets your vehicle spec.
Check the sidewall markings recommended by the manufacturer and match them like for like. Many 275/65 R17 options come as XL or LT, which can better suit heavier vehicles, frequent towing, or rougher use, but they can also feel firmer on the road. If your current tyres are LT or your placard specifies it, stick with LT when replacing.
Choose based on where the vehicle spends most of its time. Road tyres in 275/65 R17 typically give quieter running and better wet braking for motorway and town driving, while all-terrain patterns balance tarmac grip with stronger traction on gravel and fields. Mud-terrain tyres suit regular off-road work but are usually louder and less refined on wet roads.
The R17 part means it fits a 17-inch rim, but rim width and vehicle clearance still matter. Confirm your wheel width is within the tyre manufacturer’s approved range for 275/65 R17, and check for rubbing on full lock and under suspension compression. If you are moving up from a narrower size, also consider how the change affects speedometer accuracy and spare wheel fitment.
For many 4x4 systems, matching rolling radius across the axle pair is essential, and some vehicles require all four to match closely to avoid drivetrain strain. If you replace only two 275/65 R17 tyres, fit them as a matching pair with the same brand, pattern, and similar tread depth. When in doubt, replace all four to keep handling, traction control, and driveline behaviour consistent.