The Lincoln Navigator IV L 3.5 V6 (456 Hp) Automatic, produced from November 2017 to August 2021, represents the fourth generation of Lincoln’s full-size luxury SUV. Positioned as the flagship model in the Lincoln lineup, the Navigator IV L aimed to compete with offerings from Cadillac, Mercedes-Benz, and BMW in the American luxury SUV market. The “L” designation signifies the extended wheelbase version, offering increased third-row legroom and cargo capacity compared to the standard Navigator IV. This variant, equipped with the 3.5-liter EcoBoost V6 and a ten-speed automatic transmission, served as a popular choice for buyers prioritizing power, space, and a refined driving experience.
Technical Specifications
| Brand | Lincoln |
| Model | Navigator |
| Generation | Navigator IV L |
| Type (Engine) | 3.5 V6 (456 Hp) Automatic |
| Start of production | November, 2017 |
| End of production | August, 2021 |
| 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 | 5.9 kg/Hp, 169.6 Hp/tonne |
| Weight-to-torque ratio | 3.9 kg/Nm, 257.1 Nm/tonne |
| Power | 456 Hp @ 5500 rpm |
| Power per litre | 130.4 Hp/l |
| Torque | 691 Nm @ 3000 rpm (509.66 lb.-ft. @ 3000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | EcoBoost |
| Engine displacement | 3496 cm3 (213.34 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 92.5 mm (3.64 in.) |
| Piston Stroke | 86.7 mm (3.41 in.) |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-Turbo, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 5.7 l (6.02 US qt | 5.02 UK qt) |
| Coolant | 17 l (17.96 US qt | 14.96 UK qt) |
| Kerb Weight | 2688 kg (5926.03 lbs.) |
| Trunk (boot) space – minimum | 971 l (34.29 cu. ft.) |
| Trunk (boot) space – maximum | 3404 l (120.21 cu. ft.) |
| Fuel tank capacity | 107 l (28.27 US gal | 23.54 UK gal) |
| Permitted trailer load with brakes (12%) | 3810 kg (8399.61 lbs.) |
| Length | 5636 mm (221.89 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 | 1935 mm (76.18 in.) |
| Wheelbase | 3343 mm (131.61 in.) |
| Front track | 1717 mm (67.6 in.) |
| Rear (Back) track | 1707 mm (67.2 in.) |
| Ride height (ground clearance) | 246 mm (9.69 in.) |
| Drag coefficient (Cd) | 0.35 |
| Approach angle | 22.8° |
| Departure angle | 20.7° |
| Ramp-over (brakeover) angle | 20° |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears and type of gearbox | 10 gears, automatic transmission |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 285/45 R22 |
| Wheel rims size | 22 |
Powertrain & Engine Architecture
The heart of the Navigator IV L 3.5 V6 is Ford’s 3.5-liter EcoBoost V6 engine. This engine, part of Ford’s EcoBoost family, utilizes a twin-turbocharged configuration to deliver substantial power and torque. Direct fuel injection and a double overhead camshaft (DOHC) valvetrain further contribute to its efficiency and performance. The engine produces 456 horsepower at 5500 rpm and 691 lb-ft of torque at 3000 rpm. This power is then channeled through a sophisticated ten-speed automatic transmission, a key feature of this generation Navigator. The ten-speed design allows for closer gear ratios, optimizing both acceleration and fuel economy. The transmission is electronically controlled, adapting to driving conditions and driver input for smooth and responsive shifts.
Driving Characteristics
The 3.5-liter EcoBoost V6 paired with the ten-speed automatic delivers a markedly different driving experience compared to earlier Navigator generations or trims with less powerful engines. Acceleration is brisk, and the engine provides ample power for towing and hauling. The ten-speed transmission minimizes hunting for the right gear, offering smooth transitions during both city driving and highway cruising. While not a sports car, the Navigator IV L offers a composed and confident ride, aided by its substantial weight and well-tuned suspension. Compared to potential V8 alternatives, the EcoBoost V6 provides a more refined and fuel-efficient experience, though some purists may miss the traditional V8 rumble.
Equipment & Trim Levels
The Navigator IV L 3.5 V6 Automatic typically came well-equipped, even in its base trim. Standard features included leather upholstery, tri-zone automatic climate control, a premium sound system, and a large touchscreen infotainment system with navigation. Higher trim levels, such as the Reserve and Black Label, added features like massaging seats, upgraded leather, and more advanced driver-assistance systems. Optional extras included a panoramic sunroof, rear-seat entertainment system, and adaptive cruise control. The extended wheelbase of the “L” model prioritized passenger comfort, offering generous legroom in the second and third rows.
Chassis & Braking
The Navigator IV L utilizes a body-on-frame construction, providing a robust and durable platform. The suspension consists of independent front suspension and a multi-link rear suspension. Ventilated disc brakes are standard on all four wheels, providing ample stopping power for a vehicle of this size and weight. An anti-lock braking system (ABS) is also standard. The Navigator’s substantial weight necessitates a robust braking system, and the ventilated discs effectively dissipate heat during repeated braking events. The electric power steering provides a comfortable and responsive steering feel.
Market Reception & Comparison
The Navigator IV L 3.5 V6 Automatic was generally well-received by automotive critics. Reviewers praised its powerful engine, smooth transmission, spacious interior, and luxurious features. Fuel economy, while not exceptional for its class, was considered reasonable given the vehicle’s size and capabilities. Compared to competitors like the Cadillac Escalade and Chevrolet Suburban, the Navigator IV L offered a more modern and refined interior, along with a compelling powertrain. However, some critics noted that the Navigator’s price point was higher than some of its rivals.
Legacy
The Lincoln Navigator IV L 3.5 V6 Automatic has proven to be a relatively reliable vehicle, with the EcoBoost engine and ten-speed transmission demonstrating good long-term durability. On the used car market, these Navigators hold their value reasonably well, particularly well-maintained examples with lower mileage. The combination of luxury, space, and power continues to appeal to buyers seeking a full-size luxury SUV. While newer generations of the Navigator have emerged, the IV L remains a desirable option for those seeking a capable and comfortable family vehicle.
