The Lincoln Navigator IV (facelift, 2021-2024) represents a significant mid-cycle refresh of the fourth-generation Navigator, Lincoln’s full-size luxury SUV. Introduced in August 2021, this facelift brought updated styling, enhanced technology, and continued the Navigator’s position as a competitor to the Cadillac Escalade, Jeep Grand Wagoneer, and other premium large SUVs. The 3.5 V6 (440 Hp) 4×4 SelectShift variant occupied the upper echelon of the Navigator lineup, offering a potent combination of power, luxury, and all-weather capability. It built upon the foundation of the Navigator IV, which debuted in 2018, utilizing the same body-on-frame construction but with refinements aimed at improving the overall driving experience and passenger comfort.
Technical Specifications
| Brand | Lincoln |
| Model | Navigator |
| Generation | Navigator IV (facelift 2021) |
| Type (Engine) | 3.5 V6 (440 Hp) 4×4 SelectShift |
| Start of production | August, 2021 |
| End of production | 2024 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV |
| Seats | 8 |
| Doors | 5 |
| Fuel consumption (urban) | 14.7 l/100 km (16 US mpg, 19.2 UK mpg, 6.8 km/l) |
| Fuel consumption (extra urban) | 10.7 l/100 km (22 US mpg, 26.4 UK mpg, 9.3 km/l) |
| Fuel consumption (combined) | 13.1 l/100 km (18 US mpg, 21.6 UK mpg, 7.6 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 6 kg/Hp, 165.7 Hp/tonne |
| Weight-to-torque ratio | 3.8 kg/Nm, 260.2 Nm/tonne |
| Power | 440 Hp @ 5850 rpm |
| Power per litre | 126.1 Hp/l |
| Torque | 691 Nm @ 3000 rpm (509.66 lb.-ft. @ 3000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | EcoBoost |
| Engine displacement | 3490 cm3 (212.97 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 92.46 mm (3.64 in.) |
| Piston Stroke | 86.61 mm (3.41 in.) |
| Compression ratio | 10.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Twin-Turbo, Intercooler |
| Valvetrain | TIVCST |
| Engine oil capacity | 5.7 l (6.02 US qt | 5.02 UK qt) |
| Coolant | 14.6 l (15.43 US qt | 12.85 UK qt) |
| Kerb Weight | 2656 kg (5855.48 lbs.) |
| Trunk (boot) space – minimum | 547 l (19.32 cu. ft.) |
| Trunk (boot) space – maximum | 2925 l (103.3 cu. ft.) |
| Fuel tank capacity | 87 l (22.98 US gal | 19.14 UK gal) |
| Permitted trailer load with brakes (12%) | 3765 kg (8300.4 lbs.) |
| Length | 5334 mm (210 in.) |
| Width | 2029 mm (79.88 in.) |
| Width with mirrors folded | 2123 mm (83.58 in.) |
| Width including mirrors | 2383 mm (93.82 in.) |
| Height | 1938 mm (76.3 in.) |
| Wheelbase | 3112 mm (122.52 in.) |
| Front track | 1717 mm (67.6 in.) |
| Rear (Back) track | 1707 mm (67.2 in.) |
| Front overhang | 970 mm (38.19 in.) |
| Rear overhang | 1252 mm (49.29 in.) |
| Ride height (ground clearance) | 244 mm (9.61 in.) |
| Minimum turning circle (turning diameter) | 12.2 m (40.03 ft.) |
| Approach angle | 22.2° |
| Departure angle | 21.9° |
| Ramp-over (brakeover) angle | 21.1° |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels permanently, and the front wheels are driven through an electrically or mechanically operated clutch if necessary. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 10 gears, automatic transmission SelectShift |
| Front suspension | Independent coil spring, Transverse stabilizer |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
| Front brakes | Ventilated discs, 350.52 mm |
| Rear brakes | Ventilated discs, 335.28 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 275/55 R20; 285/45 R22 |
| Wheel rims size | 20; 22 |
INTRODUCTION
The 2021-2024 Lincoln Navigator IV facelift continued the model’s trajectory as a luxury SUV focused on providing a spacious and comfortable interior, coupled with strong performance. The 3.5-liter EcoBoost V6 engine, paired with a 10-speed SelectShift automatic transmission and four-wheel drive, was the flagship powertrain offering. This combination delivered substantial power and torque, making it well-suited for towing, hauling passengers, and providing a confident driving experience in various conditions. Positioned as the top-tier engine option, it catered to buyers prioritizing performance and capability over fuel efficiency. The Navigator IV facelift aimed to refine the existing formula, enhancing the vehicle’s appeal in a competitive segment.
Powertrain & Engine Architecture
At the heart of the Navigator IV (facelift) 3.5 V6 4×4 lies the EcoBoost engine, a 3.5-liter twin-turbocharged V6. This engine, part of Ford’s EcoBoost family, utilizes direct fuel injection and a sophisticated variable valve timing system (TIVCST) to optimize performance and efficiency. The engine code is generally associated with the broader EcoBoost family, but specific calibrations and components were tailored for the Navigator. The twin turbochargers provide significant boost, contributing to the engine’s 440 horsepower and 691 lb-ft of torque. The 10-speed SelectShift automatic transmission, co-developed with General Motors, is a crucial component of the powertrain. Its wide gear ratio spread allows for both strong acceleration and relaxed highway cruising. The transmission features electronically controlled shifting and selectable drive modes, allowing drivers to tailor the vehicle’s response to their preferences. The 4×4 system employs an electronically controlled clutch to engage the front wheels when needed, providing enhanced traction in slippery conditions.
Driving Characteristics
The 3.5 V6 EcoBoost engine delivers impressive acceleration for a vehicle of the Navigator’s size and weight. The twin-turbochargers minimize turbo lag, providing a responsive and linear power delivery. The 10-speed transmission contributes to smooth and quick shifts, keeping the engine in its optimal power band. Compared to lower-output engine options (which were not offered post-facelift), this variant provides a significantly more engaging driving experience. While not a sports car, the Navigator IV 3.5 V6 4×4 feels surprisingly agile for its size. The all-wheel-drive system provides excellent stability and traction, particularly in inclement weather. The ride quality is generally comfortable, thanks to the independent suspension and well-tuned dampers. However, the large wheels and tires can transmit some road imperfections to the cabin.
Equipment & Trim Levels
The 3.5 V6 4×4 variant was typically offered in the highest trim levels of the Navigator IV, such as Reserve and Black Label. Standard features included leather upholstery, heated and ventilated front seats, a premium sound system, a large touchscreen infotainment system with navigation, and a suite of advanced driver-assistance systems (ADAS) such as adaptive cruise control, lane-keeping assist, and automatic emergency braking. Optional extras included massaging front seats, a rear-seat entertainment system, and a panoramic sunroof. The Black Label trim added even more luxurious features, such as unique interior trim materials, exclusive exterior styling cues, and a concierge service.
Chassis & Braking
The Navigator IV utilizes a body-on-frame construction, providing a robust and durable platform. The suspension consists of an independent coil spring setup at the front and an independent multi-link spring suspension at the rear, both with stabilizer bars to reduce body roll. The braking system features ventilated discs at all four corners, providing ample stopping power. The front discs measure 350.52 mm, while the rear discs measure 335.28 mm. An anti-lock braking system (ABS) is standard, along with electronic brake-force distribution and brake assist.
Market Reception & Comparison
The Navigator IV (facelift) 3.5 V6 4×4 was generally well-received by critics, who praised its powerful engine, luxurious interior, and spacious cabin. However, its fuel economy was often cited as a drawback, as expected for a vehicle of its size and capability. Compared to the Cadillac Escalade, the Navigator offered a more refined and comfortable ride, while the Escalade often appealed to buyers seeking a bolder and more aggressive design. The Jeep Grand Wagoneer presented a more off-road focused alternative. The Navigator’s 10-speed transmission was also lauded for its smoothness and efficiency compared to some competitors.
Legacy
The 3.5-liter EcoBoost V6 engine has proven to be a reliable and durable powertrain in the Navigator IV. While some early EcoBoost engines experienced issues with timing chain tensioners, these problems were largely addressed in later model years. The 10-speed transmission has also demonstrated good long-term reliability. As a result, well-maintained Navigator IV 3.5 V6 4×4 models hold their value relatively well in the used car market. They remain a popular choice for buyers seeking a large, luxurious, and capable SUV with a proven track record.
