2017-2019 Ford F-350 Super Duty IV Super Cab Long box 6.7d V8 (450 Hp) Automatic SRW

The Ford F-350 Super Duty IV, produced from 2017 to 2019, represents the fourth generation of Ford’s heavy-duty pickup truck line. This iteration, specifically the Super Cab Long Box configuration paired with the 6.7-liter Power Stroke V8 diesel engine producing 450 horsepower and utilizing an automatic transmission, was positioned as a robust work truck capable of significant towing and hauling. It served as a crucial model within Ford’s lineup, catering to customers needing substantial capability beyond that of the F-150, while offering a balance between the F-350 and the even heavier-duty F-450. This variant, designated as Single Rear Wheel (SRW), was a popular choice for commercial users, farmers, and individuals requiring a powerful pickup for demanding tasks.

Technical Specifications

INTRODUCTION

The 2017-2019 Ford F-350 Super Duty IV, in its Super Cab Long Box configuration with the 6.7-liter Power Stroke diesel and automatic transmission, was a significant offering in the American heavy-duty truck market. Built on the F-250/F-350 platform (often referred to as the F-250/350 Super Duty), this generation represented a substantial upgrade in terms of capability, technology, and refinement compared to its predecessor. The “IV” designation denotes the fourth iteration of this Super Duty series. The Super Cab body style provided additional rear passenger space compared to the standard cab, while the Long Box offered increased bed length for hauling. This particular variant, with its 450 horsepower and robust torque output, aimed to provide a balance between power and usability for a wide range of demanding applications.

Powertrain & Engine Architecture

At the heart of this F-350 variant lies Ford’s 6.7-liter Power Stroke V8 diesel engine. This engine, internally designated with various codes depending on the specific year and calibration, is a turbocharged and intercooled design. It utilizes a diesel commonrail fuel injection system, delivering highly pressurized fuel directly into the cylinders for efficient combustion. The engine features an overhead valve (OHV) valvetrain, a design choice favored for its durability and relatively simple maintenance. The turbocharger, often a variable geometry turbo (VGT), provides increased air intake to the engine, boosting power and torque. The 6.7-liter engine benefits from a high compression ratio of 16.2:1, contributing to its efficiency. The engine is paired with Ford’s TorqShift 6-speed automatic transmission, a heavy-duty unit designed to handle the substantial torque output of the diesel engine. This transmission features a robust torque converter and electronically controlled shifting for smooth and efficient operation.

Driving Characteristics

The F-350 Super Duty 6.7L diesel with the automatic transmission delivers a driving experience focused on capability and work-oriented performance. While not designed for sporty handling, the truck provides a stable and controlled ride, even when heavily loaded. The automatic transmission’s gear ratios are optimized for towing and hauling, providing ample low-end torque for pulling heavy trailers or carrying substantial payloads. Compared to manual transmission versions of the same engine, the automatic offers greater convenience, particularly in stop-and-go traffic. However, some drivers may prefer the more direct control offered by a manual gearbox. The 450 horsepower and 1267 Nm (934.49 lb-ft) of torque provide ample power for accelerating with a load, and the transmission generally shifts smoothly and predictably. The overall driving experience is characterized by a sense of solidity and robustness, reflecting the truck’s heavy-duty construction.

Equipment & Trim Levels

The F-350 Super Duty IV offered a range of trim levels, with the 6.7L diesel/automatic combination available across several of them. Standard equipment typically included air conditioning, power windows and locks, a basic audio system, and vinyl upholstery. Higher trim levels, such as Lariat, King Ranch, and Platinum, added features like leather upholstery, heated and ventilated seats, a premium audio system, navigation, and advanced driver-assistance systems. The Super Cab configuration provided increased rear seat legroom compared to the standard cab, making it more comfortable for passengers. Optional extras included a trailer brake controller, a fifth-wheel hitch, and various appearance packages. The Long Box bed offered a substantial cargo capacity, making it ideal for hauling large items.

Chassis & Braking

The F-350 Super Duty IV features a robust chassis designed to withstand heavy loads and demanding use. The front suspension utilizes an independent coil spring setup with a trailing arm design, providing a comfortable ride and good handling. The rear suspension employs a traditional rigid axle setup with leaf springs, offering excellent load-carrying capacity. Braking duties are handled by ventilated disc brakes on all four wheels, providing ample stopping power even when heavily loaded. An Anti-lock Braking System (ABS) is standard, enhancing safety and control. Steering is accomplished via a hydraulic power steering system, providing a responsive and predictable feel. The truck’s frame is constructed from high-strength steel, ensuring durability and rigidity.

Market Reception & Comparison

The 2017-2019 Ford F-350 Super Duty IV was generally well-received by critics and consumers alike. The 6.7-liter Power Stroke diesel engine was praised for its power and torque output, while the TorqShift automatic transmission was lauded for its smooth operation and durability. Compared to the gasoline-powered F-350 models, the diesel offered significantly better fuel economy when towing or hauling heavy loads. However, the diesel engine also carried a higher price tag and potentially higher maintenance costs. Compared to other heavy-duty trucks in its class, such as the Ram 3500 and Chevrolet Silverado 3500, the F-350 Super Duty was often seen as offering a good balance of capability, comfort, and technology.

Legacy

The 6.7-liter Power Stroke diesel engine in the 2017-2019 F-350 Super Duty has proven to be a reliable and durable powertrain. While some early models experienced issues with the high-pressure fuel pump, these were largely addressed through warranty repairs and updates. Today, these trucks remain popular in the used car market, commanding relatively high prices due to their proven capability and durability. The TorqShift automatic transmission has also proven to be a reliable unit, capable of withstanding years of heavy use. Overall, the F-350 Super Duty IV with the 6.7-liter diesel and automatic transmission represents a well-engineered and capable truck that continues to serve its owners well.