The 2017 Ford Explorer Sport occupies a unique space in the evolution of American performance SUVs. Before the "ST" badge became the standardized mark of Ford’s high-output utility vehicles, the Sport trim was the sleeper pick for drivers who needed seven seats but craved the soul of a Taurus SHO. In today's market, nearly a decade after it first rolled off the assembly line, this specific model year represents a compelling, albeit complex, proposition for the secondary market.

The Menacing Aesthetic: Aging with Grace

Visually, the 2017 Ford Explorer Sport remains one of the most handsome iterations of the fifth-generation Explorer. While the standard trims relied heavily on chrome and silver accents, the Sport trim adopted a "blackout" philosophy that still looks contemporary in 2026.

The signature high-gloss black grille, blacked-out headlamp and taillamp bezels, and the 20-inch machined aluminum wheels with painted pockets give the vehicle a grounded, muscular stance. Unlike some of its contemporaries that utilized overly aggressive body kits, the Sport's design changes were subtle but effective. It doesn't scream for attention, but it commands a presence in a rear-view mirror. The "EXPLORER" lettering across the hood—a touch once reserved for luxury European SUVs—adds a premium feel that has helped the vehicle retain its curb appeal long after newer generations reached showrooms.

Power Dynamics: The 3.5L EcoBoost Legacy

At the heart of the 2017 Sport is the 3.5-liter twin-turbocharged EcoBoost V6 engine. Producing 365 horsepower and 350 lb-ft of torque, this powerplant was, and still is, a formidable force. In an era where many modern three-row SUVs are downsizing to high-strung four-cylinder engines, the effortless torque of the twin-turbo V6 provides a driving experience that feels significantly more relaxed and authoritative.

Acceleration is brisk for a vehicle weighing nearly 5,000 pounds. The power delivery is linear, thanks to the twin-turbo setup that minimizes lag. However, buyers should be aware that this performance comes at a cost. While Ford advertised respectable fuel economy at the time, real-world figures in 2026 often hover around 16–18 mpg in mixed driving. It is a "pay to play" engine—one that prioritizes highway passing power and towing confidence over hyper-efficiency.

The Reality of Ownership: PTU and Water Pump Concerns

From an E-E-A-T perspective, any honest discussion of the 2017 Ford Explorer Sport must address its mechanical Achilles' heels. This generation of the D4 platform features two specific areas that require diligent inspection before purchase.

First is the internal water pump. Unlike most engines where the water pump is an external accessory driven by a serpentine belt, the 3.5L EcoBoost in this Explorer uses a water pump driven by the timing chain. If the pump seal fails, it can leak coolant directly into the oil pan, potentially leading to catastrophic engine failure if not caught immediately. Prospective owners should look for any signs of "milky" oil or a sweet smell from the engine bay. Replacing this pump is a labor-intensive job that often costs upwards of $2,000 in current labor rates, as it requires stripping the front of the engine.

Second is the Power Transfer Unit (PTU) for the Intelligent 4WD system. The PTU sits near the exhaust, leading to significant heat soak that can break down the gear oil inside. Ford originally marketed this as a "lifetime" fluid, but experience has shown that frequent fluid changes (every 30,000 miles) are essential to prevent the unit from seizing. If you are testing a used model and hear a high-pitched whine or smell burning gear oil after a highway stint, the PTU may be on its way out.

Cabin Comfort and the SYNC 3 Experience

Inside, the 2017 Explorer Sport was a significant step up from the early fifth-gen models. It features perforated leather-trimmed seats with unique red accent stitching, providing a cockpit feel that distinguishes it from the utilitarian XLT.

Technology-wise, 2017 was a pivotal year. This was the year Ford fully transitioned to SYNC 3, abandoning the much-maligned MyFord Touch system. In 2026, SYNC 3 remains surprisingly functional because it was one of the first systems to support Apple CarPlay and Android Auto. While the native navigation and interface may feel slightly dated compared to the massive vertical screens in modern EVs, the ability to mirror a smartphone ensures that the infotainment remains relevant and useful for daily navigation and media.

The cabin utility is where the Explorer shines. The third row, while best suited for children or short trips for adults, offers PowerFold functionality in many Sport models, allowing the seats to vanish into the floor at the touch of a button. With the second and third rows stowed, the cargo volume is expansive, making it an ideal vehicle for weekend adventures or large grocery runs.

Handling and Terrain Management

The "Sport" in the name isn't just about the engine. Ford equipped this trim with a sport-tuned suspension that features stiffer dampers and springs. While this reduces body roll during cornering, it does lead to a firmer ride over broken pavement. It feels more like a European SUV than a traditional American floaty cruiser.

The Intelligent 4WD system with the Terrain Management System allows the driver to toggle between Normal, Mud/Ruts, Sand, and Grass/Gravel/Snow modes. By adjusting throttle response and transmission shift points, the system makes the 5,000-pound beast surprisingly capable in adverse weather. However, it is important to remember that this is a soft-roader, not a rock crawler. Its strength lies in maintaining traction on snowy highways or wet boat ramps, not tackling the Rubicon Trail.

Towing Capability: A Strong Alternative to Trucks

For many, the 2017 Ford Explorer Sport serves as a viable alternative to a mid-size pickup truck. When properly equipped with the Class III trailer tow package, it is rated to tow up to 5,000 pounds. This is more than enough for a dual-axle utility trailer, a small horse trailer, or a medium-sized boat. The 3.5L EcoBoost’s torque is particularly beneficial here, providing the low-end grunt needed to get a heavy load moving without feeling strained. The standard rearview camera with zoom functionality also makes hitching a trailer a solo task rather than a two-person struggle.

Safety Features and Driver Assistance

By 2017, Ford had integrated a suite of advanced safety features that hold up well today. The Sport trim often comes equipped with:

  • BLIS (Blind Spot Information System): Critical for a vehicle of this size with significant rear pillars.
  • Adaptive Cruise Control: Uses radar to maintain distance, a feature that remains a luxury on some entry-level cars even in 2026.
  • Forward Collision Warning with Brake Support: Provides an extra layer of security in stop-and-go traffic.
  • Inflatable Rear Safety Belts: A unique Ford innovation of the era designed to reduce chest injuries for rear passengers.

Is the 2017 Ford Explorer Sport Worth It in 2026?

Deciding to purchase a 2017 Ford Explorer Sport in the current market requires a balanced approach. You are buying a vehicle that offers a level of performance and presence that is difficult to find at its current used price point. It represents the pinnacle of the D4 platform's development, offering a more refined experience than the 2011–2015 models.

Pros:

  • Exceptional twin-turbo power that still feels fast today.
  • Classic, aggressive styling that hasn't aged poorly.
  • SYNC 3 with smartphone integration.
  • Genuine 5,000-lb towing capacity.

Cons:

  • High maintenance risk regarding the internal water pump.
  • PTU longevity requires proactive fluid management.
  • Fuel economy is poor by modern standards.
  • Ride quality can be harsh on unmaintained roads.

If you can find a well-documented example where the owner has already addressed the PTU fluid and perhaps even proactively replaced the water pump/timing chain, the 2017 Ford Explorer Sport is an incredible value. It provides a "poor man’s Audi SQ7" experience—massive power, great looks, and enough room for the whole family—without the premium European maintenance price tag. Just be sure to set aside a "rainy day" fund for the mechanical quirks that define this era of Ford engineering.