ISL for Urban Bus & Shuttle (EPA 07)

Overview

ISL for Urban Bus & Shuttle (EPA 07)

The ISL is the most popular engine in the transit market, due to its high reliability, low maintenance and fuel efficiency. The ISL incorporates familiar, proven technologies and subsystems: cooled EGR, Cummins patented VG Turbo, High Pressure Common Rail fuel injection, and Cummins Particulate Filter. These technologies have been used in Cummins transit bus engines for years.

The ISL is also easy on the operating and maintenance budget. Based on one of the most fuel-efficient engines in the transit market, the ISL will help keep your fuel bill down. The ISL maintains its long maintenance intervals to make every dollar in your budget go further.

A wide variety of ratings and configurations are available to match your unique operating requirements. Horsepower ratings from 250-330 provide the right performance for any transit bus - 29-foot through 60-foot articulated buses. The ISL is also available in conventional driveline and hybrid-ready configurations. Regardless of your needs, the Cummins ISL is the right engine for every bus, every route.

In addition to our comprehensive base warranty, it's backed by the biggest customer support network in North America.

For the latest news, sign up for our Bus News online newsletter today. For detailed information on Cummins Transit and Shuttle Buses, download our Transit/Shuttle Bus Brochure.

PowerSpec

Cummins PowerSpec is an electronic tool that makes it possible to tailor the operation of Cummins engines in every on-highway application.

Available for: On-Highway, Urban Bus & Shuttle

See ISL PowerSpec Engine Features

Specifications

Advertised Horsepower 250-330 hp 187-246 kW
Peak Torque 730-1100 lb-ft 990-1491 N•m
Governed Speed 2000-2200
Clutch Engagement Torque 500 lb-ft 746 N•m
Cylinders 6
Oil System Capacity 7.3 U.S. gal 27.6 liters
System Weight    Engine (dry)    Aftertreatment* 1,685 lb 1,635 lb 50 lb 764 kg 742 kg 22 kg
* Increase over standard muffler

Engine Finder Specifications

Markets
Certification Level EPA 2007
Power 250 - 330 hp / 186 - 246 kW
Torque 730 - 1100 lb-ft / 990 - 1491 N•m

Ratings

Engine Model Advertised hp Peak Torque Governed Speed
ISL 330 330 1100 @ 1300 2000
ISL 330* 330 1100 @ 1300 2000
ISL 280 280 900 @ 1300 2200
ISL 280* 280 900 @ 1300 2200
ISL 250 250 730 @ 1300 2200

* Special Hybrid rating

Maintenance

Avg. Vehicle Speed Miles Kilometers Hours Months
10 to 15 mph 6,000 9,650 500 6
8 to 10 mph 5,000 8,050 500 6
6 to 8 mph 4,000 6,450 500 6
4 to 6 mph 3,000 4,800 500 6
2 to 4 mph 1,500 2,400 500 6
  Miles Kilometers Hours Months
Primary Fuel Filter every oil change 500 6
Secondary Fuel Filter every 2nd oil change 1,000 12
Coolant Filter None* None* None*
Overhead Adjustment 150,000 mi 241,500 km 5,000 48
Coalescing Filter 80,000 mi 128,000 km 2,000 24
Particulate Filter Cleaning 200,000-400,000 mi (320,000-640,000 km)

* If engine is equipped with an optional coolant filter, it will need to be replaced on the same intervals as the oil filter.

For complete maintenance information, please consult your Owner's Manual or Operations and Maintenance Manual.

Brochures Available

Title Bulletin Number Request View  
National Overhaul Warranty For MidRange Engines Flyer 4021552 Request View  Download