Cummins announces its "next generation of performance"

Cummins announces 5L V8 diesel for North American on-highway markets.

Cummins - a global power leader - has announced its new ISV5.0 - a 5L V8 diesel engine designed to power pickup-and-delivery vehicles, as well as light and medium duty trucks, school buses and motorhomes through Class 5.

The ISV5.0 extends Cummins range of clean-diesel engines for North American vehicles, said Dave Crompton, Cummins vice president and general manager - engine business, and features industry-leading technology that delivers performance and a low total cost of ownership to customers.

It is the company's "next generation of performance" in its diesel engine product line, Rich Freeland - vice president, Cummins, and president, engine business, said.

"As a compact and lightweight engine that delivers best-in-class fuel efficiency and total cost of to customers, the ISV5.0 creates new opportunities for our OEM customers," noted Crompton. "Many of our customers have asked for a Cummins alternative for gasoline or other small displacement automotive diesel engines.

"The ISV5.0 represents the next dimension in fuel economy and performance as Cummins continues to broaden our on-highway product line."

The new engine is the commercial version of the Cummins V8 turbocharged diesel engine developed for the 2015 Nissan Titan pickup truck, according to Mike Taylor - director, Cummins customer engineering and business development.

Easy fit

The ISV5.0 has been designed to easily fit where a comparable V8 or V10 gasoline engine was previously installed, noted Jim Katzenmeyer, Cummins executive engineer - V8 program. Multiple front-end accessory drive options handle the common automotive accessories required by a wide spectrum of applications, including the alternator, air compressor, A/C compressor and hydraulic pump.

These available options, coupled with Cummins integration expertise, minimize OEM engineering time and vehicle retooling costs, he said. "Together, the OEM and Cummins complete a rigorous installation quality assessment, ensuring that the highest-quality product is delivered to our mutual customers."


The ISV5.0 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, said Katzenmeyer. These features, along with dual overhead camshafts, also contribute to the excellent noise, vibration and harshness (NVH) characteristics achieved by the ISV5.0.

The CGI and aluminum alloy heads are a first for Cummins, he noted. 

"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," said Katzenmeyer. "With multiple injection events driven by integrated electronic controls, the HPCR fuel system, along with Cummins VGT Variable Geometry Turbocharger, contributes to a very impressive peak torque of 560 ft/lbs (at1,600 rpm) and quick throttle response."

Ratings from 200 to 275 hp at 3,200 rpm are available.

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

A two-stage fuel filter system for the ISV5.0 features the latest NanoNet media, from Cummins Filtration, to ensure that the HPCR fuel system is fully protected against fuel contamination, said Katzenmeyer. "NanoNet's unique construction provides lower fuel-flow restriction and traps greater than 99 percent of all particles as small as 4 microns."

Cummins Filtration's expertise also extends to a high-efficiency coalescing filter, for eliminating crankcase hydrocarbon emissions and oil mist, further adding to the clean-engine credentials of the ISV5.0, he added


"Proven air handling and emissions control technology draws upon Cummins extensive emissions technology expertise," Katzenmeyer said.

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