
2021 Ford F-150 STX 2.7 L EcoBoost 4×4 — Overview
The 2021 Ford F-150 STX 4×4 with the 2.7-liter EcoBoost engine is a capable full-size pickup that blends strong performance, modern styling, and everyday usability. It sits between the base XL work truck and the more feature-rich XLT, offering a sporty exterior and a comfortable, technology-filled cabin.
Powertrain & Performance
- Engine: 2.7-liter twin-turbocharged EcoBoost V6
- Output: 325 horsepower and 400 lb-ft of torque
- Transmission: 10-speed automatic
- Drivetrain: Part-time four-wheel drive with electronic shift-on-the-fly (2H, 4A, 4H, 4L)
- 0–60 mph: Around 6.1 seconds (quick for a full-size pickup)
- Fuel Economy: Approx. 19 mpg city / 24 mpg highway / 21 mpg combined
- Towing Capacity: Up to 10,100 lbs (depending on configuration)
- Payload: Around 1,700 – 2,000 lbs depending on cab and options
The 2.7 EcoBoost is one of the best-balanced engines in the F-150 lineup — providing V8-like torque with better fuel economy. Paired with the 10-speed transmission, it delivers smooth power, confident towing, and refined highway manners.
Trim & Features – STX Package
The STX is an appearance and equipment upgrade based on the XL trim. It gives the truck a sportier, more modern look while keeping pricing below higher trims.
Exterior highlights:
- 18-inch machined-aluminum wheels with magnetic-painted pockets
- Body-color front and rear bumpers
- Black mesh grille with body-color surround
- Fog lights and privacy glass
- Optional sport graphics or black-accent package
Interior & comfort:
- Unique STX sport cloth seats
- 8-inch touchscreen with SYNC 4 infotainment
- Apple CarPlay and Android Auto standard
- Single-zone manual climate control
- Optional power driver’s seat and upgraded storage packages
- Smart device connectivity and FordPass remote features
Body & Configuration Options
- Cab styles: Regular Cab, SuperCab (extended), or SuperCrew (four full doors)
- Bed lengths: 5.5 ft, 6.5 ft, or 8 ft (depending on cab)
- Construction: Fully boxed high-strength steel frame with a military-grade aluminum-alloy body
Dimensions (approximate, SuperCrew 5.5-ft bed):
- Overall length: 231.7 inches
- Wheelbase: 145 inches
- Height: 77 inches
- Width: 79.9 inches
Safety & Driver Assistance
Standard or available driver-assist features include:
- Pre-collision assist with automatic emergency braking
- Dynamic hitch assist and trailer sway control
- Rear-view camera with hitch guidance
- Optional blind-spot monitoring and cross-traffic alert
- Optional lane-keeping assist and adaptive cruise control
The STX trim focuses on practicality and driving confidence, with the same robust chassis and safety engineering as higher trims.
Driving Experience
The F-150 STX 4×4 drives like a confident, refined truck. The 2.7-liter twin-turbo V6 delivers excellent mid-range torque for towing and merging, while the 10-speed transmission keeps shifts smooth. The ride is composed and quiet, and the steering feels well-weighted. With 4×4 engaged, traction on snow, gravel, or wet pavement is secure and predictable.
Pros
- Strong, responsive twin-turbo V6 engine
- Quick acceleration and smooth 10-speed transmission
- Modern, attractive styling with STX package
- Good balance between power and efficiency
- Comfortable, tech-ready interior
Cons
- Not as many premium comfort features as higher trims
- Real-world fuel economy can drop when towing or off-roading
- Firm ride when the bed is empty
- STX package mainly appearance-focused — fewer convenience features without optional upgrades
Bottom Line
The 2021 Ford F-150 STX 2.7 4×4 is a well-rounded, stylish, and powerful half-ton pickup that delivers excellent everyday usability with serious performance. It’s ideal for buyers who want a modern full-size truck that can tow, haul, and handle rough weather — all without stepping into luxury-trim pricing.
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