The Lincoln Navigator IV L 3.5 V6 (456 Hp) 4WD Automatic represents the fourth generation of Lincoln’s full-size luxury SUV, produced from November 2017 through August 2021. This variant, positioned as a high-end offering within the Navigator lineup, aimed to compete with Cadillac Escalade, and other large luxury SUVs. Built on a body-on-frame platform, the Navigator IV L offered a spacious interior, powerful engine, and a suite of advanced technology features. The “L” designation signifies the extended wheelbase version, providing increased third-row legroom and cargo capacity. This model marked a significant departure from previous Navigators, embracing a more refined and modern aesthetic while retaining the robust capability expected of a large SUV.
Technical Specifications
| Brand | Lincoln |
| Model | Navigator |
| Generation | Navigator IV L |
| Type (Engine) | 3.5 V6 (456 Hp) 4WD 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 (economy) – urban | 14.7 l/100 km (16 US mpg, 19.2 UK mpg, 6.8 km/l) |
| Fuel consumption (economy) – extra urban | 11.2 l/100 km (21 US mpg, 25.2 UK mpg, 8.9 km/l) |
| Fuel consumption (economy) – 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, 166 Hp/tonne |
| Weight-to-torque ratio | 4 kg/Nm, 251.5 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 | 2747 kg (6056.1 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%) | 3674 kg (8099.78 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 | 1933 mm (76.1 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) | 244 mm (9.61 in.) |
| Drag coefficient (Cd) | 0.35 |
| Approach angle | 22.4° |
| Departure angle | 20.7° |
| Ramp-over (brakeover) angle | 19.8° |
| Drive wheel | All wheel drive (4×4) |
| 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 is Ford’s 3.5-liter EcoBoost V6 engine. This engine, designated as the third generation of the EcoBoost family, utilizes direct fuel injection, a twin-turbocharger setup, and variable valve timing. The twin-turbochargers provide increased power and torque across a wider RPM range, mitigating turbo lag. The engine produces 456 horsepower at 5500 rpm and a substantial 691 lb-ft of torque at 3000 rpm. This power is delivered through a sophisticated 10-speed automatic transmission, which contributes to both improved fuel efficiency and responsive shifting. The transmission’s wide gear ratio spread allows the engine to operate in its optimal power band more frequently. The engine is longitudinally mounted, driving all four wheels via a sophisticated four-wheel-drive system.
Driving Characteristics
The 3.5L EcoBoost V6 paired with the 10-speed automatic delivers a surprisingly refined driving experience for a vehicle of this size. Acceleration is brisk, with the Navigator capable of quick bursts of speed for merging or overtaking. The 10-speed transmission is generally smooth and responsive, although some drivers have noted occasional hunting for the right gear in certain situations. Compared to lower-trim Navigators with the standard suspension, the IV L often featured adaptive dampers, providing a more comfortable ride quality. While not a sports car, the Navigator IV L handles reasonably well for its size, with minimal body roll thanks to the well-tuned suspension. The four-wheel-drive system provides excellent traction in various weather conditions.
Equipment & Trim Levels
The Navigator IV L 3.5 V6 4WD Automatic typically came standard with a high level of equipment. This 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 features such as adaptive cruise control, lane-keeping assist, and automatic emergency braking. Optional extras included a rear-seat entertainment system, massaging front seats, and a panoramic sunroof. Interior trim options varied, with higher trims offering more luxurious materials and finishes.
Chassis & Braking
The Navigator IV L utilizes a body-on-frame construction, providing a robust and durable chassis. The suspension system consists of independent front suspension and a multi-link rear suspension. The IV L often featured larger brakes compared to lower trims, with ventilated discs at all four corners. The braking system is assisted by ABS and electronic brake-force distribution. The rear suspension design and stabilizer bar thickness were optimized for the vehicle’s weight and intended use, providing a balance between ride comfort and handling stability.
Market Reception & Comparison
The Lincoln Navigator IV L 3.5 V6 4WD Automatic was generally well-received by critics and consumers. It was praised for its spacious interior, powerful engine, and luxurious features. Fuel economy, however, was a common criticism, as expected for a vehicle of this size and weight. Compared to the base Navigator trims, the IV L offered a more refined driving experience and a higher level of luxury. It also commanded a higher price tag. Against competitors like the Cadillac Escalade and the Jeep Grand Wagoneer, the Navigator IV L held its own, offering a compelling combination of features, performance, and value.
Legacy
The Lincoln Navigator IV L 3.5 V6 4WD Automatic has proven to be a relatively reliable vehicle, with the EcoBoost engine generally holding up well over time. However, like any complex modern vehicle, it is not without its potential issues. Some owners have reported problems with the infotainment system and certain electronic components. The 10-speed automatic transmission has also been known to experience occasional issues. Despite these potential concerns, the Navigator IV L remains a popular choice in the used car market, particularly for those seeking a large, luxurious, and capable SUV. Its combination of power, space, and features continues to appeal to buyers looking for a premium full-size SUV experience.
