The 2017 Subaru Outback can tow up to 2,700 pounds with the 2.5-liter engine when equipped with the factory towing package, and up to 3,500 pounds with the larger 3.6-liter engine.
Tow capacity depends on engine choice, optional towing equipment, and trailer weight. This article outlines the official limits, the equipment that supports heavier loads, and practical tips for towing safely with a 2017 Outback.
Official towing capacities by engine
The following figures assume the vehicle has the factory towing package and the appropriate trailer equipment.
- 2.5-liter four-cylinder engine: maximum trailer weight up to 2,700 pounds when properly equipped with the towing package.
- 3.6-liter flat-six engine: maximum trailer weight up to 3,500 pounds when properly equipped with the towing package.
These numbers represent the upper limits under standard testing and may vary slightly based on configuration, altitude, and vehicle condition. Always verify the exact rating for your specific build in the owner’s manual or by checking Subaru’s official specifications for your VIN.
Why the two numbers matter
The Outback’s torque, engine design, and cooling capacity influence how much it can pull. The 2.5L option is efficient and capable for light-to-mid trailers, while the 3.6L version provides a higher ceiling for heavier loads, especially when you regularly tow larger caravans, campers, or utility trailers.
Practical towing guidelines
To tow safely and within limits, you’ll need the right hardware and good towing practices. The list below covers essential steps and equipment for most 2017 Outback tow setups.
- Trailer hitch and wiring: Use a proper hitch rated for the expected weight (typically Class II or III) with a compatible trailer wiring harness to ensure reliable brake and signal functions.
- Braking and control: For heavier trailers, ensure trailer brakes are installed and functional, and consider a brake controller as required by local laws.
- Weight distribution and tongue weight: Aim for a tongue weight around 10–15% of the trailer’s gross weight; use a weight-distributing hitch for long or heavy trailers to maintain stability.
- Vehicle readiness: Before towing, check tire condition and pressure, brakes, fluids (including cooling system), and ensure the engine and transmission cooling systems are in good shape.
- Driving adjustments: Plan for longer stopping distances, wider turns, smoother acceleration, and careful handling in hills and headwinds.
Following these guidelines helps keep the Outback within its safe operating envelope and improves overall towing stability and safety on the road.
Trailer setup and legal considerations
Check local regulations regarding trailer braking requirements, lighting, and inspection intervals. Use appropriate mirrors, consider a spotter for backing up, and always perform a pre-tow inspection to catch any issues before hitting the road.
Summary
For a 2017 Outback, maximum towing capacity depends on the engine and factory towing package: up to 2,700 pounds with the 2.5-liter engine and the tow package, or up to 3,500 pounds with the 3.6-liter engine. Always tow within these limits, use the proper hitch and brakes, and follow safe towing practices to ensure reliability and safety on the road. When in doubt, consult the owner’s manual or a Subaru dealer for your exact vehicle configuration.