The 5.0L V8 Turbo Diesel brings together a compacted graphite iron (CGI) cylinder block, forged steel crankshaft, high-strength aluminum alloy heads, and composite valve covers to offer maximum durability in a lightweight package. These features, along with dual overhead camshafts, also contribute to the excellent noise, vibration and harshness (NVH) characteristics achieved by the 5.0L V8 turbo diesel.

The Cummins M² Two-Stage Turbocharger is configured to work well at both low and high engine speeds. The series sequential turbocharging system, involving two differently sized turbochargers, effectively provides a small turbocharger for low air flow requirements and a large turbo for high air flow. The small turbo provides the advantage of good transient response due to its low inertia and the large turbo maintains power at higher engine speeds. This helps eliminates turbo lag, providing a continuous delivery of peak torque through the RPM range.

In order to control the air flow between the two turbo chargers, the new M² system from Cummins Turbo Technologies uses a patented rotary valve to open ports that perform the bypass or waste-gate functionality and provide exhaust after-treatment thermal management.

High injection pressures from the latest Bosch High Pressure Common Rail (HPCR) fuel system and piezo fuel injectors provide precise fuel control for optimized in-cylinder combustion, leading to better fuel efficiency and reduced emissions. With multiple injection events driven by integrated electronic controls, the HPCR fuel system, along with Cummins M² Two-Stage Turbocharger, contributes to a peak torque of 555 lb-ft (752 N·m) and 310 horsepower (231 kW).

In cold weather, the advanced ceramic glow plug system significantly reduces start time and electrical current draw, reducing vehicle charging system requirements. The ceramic glow plugs are designed to last the life of the engine, with no maintenance.

A two-stage fuel filter system for the 5.0L V8 Turbo Diesel features the latest NanoNet media from Cummins Filtration, to ensure that the HPCR fuel system is fully protected against fuel contamination. NanoNet’s unique construction provides lower fuel-flow restriction, and traps greater than 99 percent of all particles as small as 4 microns.

Proven air handling and emissions control technology draws upon Cummins extensive emissions technology expertise. Cummins M² Two-Stage Turbocharger, cooled Exhaust Gas Recirculation (EGR) and Cummins Emission Solutions Aftertreatment System, featuring a Diesel Particulate Filter (DPF) and Selective Catalytic Reduction (SCR), result in near-zero oxides of nitrogen (NO_x) and particulate matter (PM) emissions while delivering better performance and fuel economy.

The engine is mated to a heavy-duty 6-speed Aisin automatic transmission developed and tuned exclusively for the TITAN XD. TITAN will also be offered with V8 and V6 gasoline engines. Details on those engines will be announced at a later date.

Titan XD chassis. Nissan TITAN XD models utilize a unique frame and chassis to handle the Cummins diesel and its expanded towing and payload potential. Starting with a durable, proven chassis design from Nissan Commercial Vehicles, the new fully boxed, full-length ladder frame is extensively reinforced and strengthened for use with the TITAN XD with added stiffness, vertical and lateral bending, and torsional rigidity. It also features an extended 151.6-inch wheelbase – about 20 inches longer than non-XD TITAN models.

To maximize stability, handling and ride comfort, TITAN XD uses a new heavy-duty, highly stable suspension design. The double-wishbone with stabilizer bar front suspension is reinforced and tuned for hard use and the rigid rear axle suspension utilizes hefty leaf springs and leaf bushings, along with twin-tube shock absorbers. The axle is a large purpose-built American Axle Manufacturing design. The rear differential measures 13.0 inches with 3.5-inch axle tubes, while the front differential (4x4 models) measures 9.25 inches. Also available is an Electronic Locking Rear Differential.

Hydraulic cab-mounts help isolate the occupants from the advanced TITAN XD chassis. The new TITAN XD rides on 17-inch, 18-inch or 20-inch aluminum-alloy wheels with LT245/75R17, LT275/65R18 or LT265/60R20 tires for strong all-weather/all surface traction.

Braking is provided by a 4-wheel disc system with 14.2 x 1.5-inch front/14.4 x 1.2-inch rear ventilated discs front and rear with hydraulic power assist. The high brake fluid pressure generated by an electric pump assists brake pedal force for a confident feel. The system is designed to provide improved noise and judder control (versus the previous generation Titan).

Responsive steering is provided by a recirculating ball-type high-capacity steering system with parallel rod steering linkage to optimize steering effort characteristics, even under heavy axle weight and towing conditions.

Even the radiator’s heat radiation cooling capacity has been increased more than 25 percent (versus the previous TITAN) to help enhance performance and meet SAE J2807 compliance. TITAN XD engine capacity meets 12,000-pound tow requirements through use of the large radiator, air transmission cooler and large 23.6-inch engine cooling fan diameter.