SchoolBus logo in red and orange
MenuMENU
SearchSEARCH

New Line of EGR Coolers Designed for Cummins Diesel Engines

Bullet Proof Diesel’s line of EGR coolers are now available for Cummins ISB, ISC, ISL, QSL, and L9 engine platforms.

July 18, 2019
New Line of EGR Coolers Designed for Cummins Diesel Engines

Bullet Proof Diesel’s new line of EGR coolers are available for Cummins ISB, ISC (shown here), ISL, QSL, and L9 engine platforms.

1 min to read


Bullet Proof Diesel’s new line of EGR coolers are available for Cummins ISB, ISC (shown here), ISL, QSL, and L9 engine platforms.

MESA, Ariz. — Bullet Proof Diesel has released a new line of EGR coolers for Cummins diesel engines.

The EGR coolers, which feature patented “H-Core” technology, are now available for Cummins ISB, ISC, ISL, QSL, and L9 engine platforms, according to a news release from Bullet Proof Diesel.

Ad Loading...

The H-Core technology allows for the natural expansion and contraction of cooling tubes inside the EGR cooler — which reportedly limits structural failure that can occur at the end of the tubes, rupturing the EGR cooler and leading to possible engine component damage, according to the supplier. The H-Core construction also increases the surface area of the coolant tubes within the EGR coolers, making them more effective heat exchangers than other tubed designs, according to the supplier.

Bullet Proof Diesel said that it aims to provide a permanent EGR cooler solution, in contrast to stock units, which often need to be replaced, in many cases. The supplier also said that it is currently seeking input from fleet managers and professionals to help determine the solution's future applications.

More Maintenance

A product photo of the Meritor brake pads against an orange background and the Cummins logo
MaintenanceJanuary 30, 2026

Cummins Introduces Meritor MFLEX4 Air Disc Brake Pad

Check out key features of the new air disc brake pad and catch free 2026 brake training sessions from Cummins and Meritor. Details here.

Read More →
SponsoredJanuary 29, 2026

8 Ways To Simplify and Streamline School Bus Fleet Operations

What if your fleet technology actually worked together? Learn eight practical strategies to integrate multiple systems into one platform, unlocking clearer insights, stronger safety standards, and smoother daily operations.

Read More →
SponsoredJanuary 19, 2026

3 New Ways Fleet Software Pays: ROI opportunities for modern fleet managers

Keeping buses safe, reliable, and on schedule requires more than manual processes. This eBook explores how modern fleet software supports school transportation teams with automated maintenance scheduling, smarter video safety tools, and integrated data systems. Discover practical ways fleets are reducing breakdowns, improving safety, and saving valuable staff time.

Read More →
Ad Loading...
SponsoredNovember 7, 2025

eBook: Good for the Fleet, Good for the Community

Learn how modern telematics helps pupil transportation fleets operate more safely, efficiently, and cost-effectively while proving measurable value to their communities. See how real fleets are reducing idling, improving driver safety, and using video data to protect budgets and passengers alike.

Read More →
Up close image of an engine.
Managementby StaffNovember 6, 2025

Applications Open for Propane Autogas Skills Grant Program

With alternative fuels on the rise, PERC’s grant program helps schools prepare students for careers maintaining low-emission fleets through hands-on training and equipment funding.

Read More →
Ad Loading...
Fleetio graphic announcing Maintenance Shop Network expansion into Canada with features like trusted repair shops, real-time tracking, automated approvals, and streamlined payments.
Maintenanceby News/Media ReleaseOctober 8, 2025

Fleetio Expands Maintenance Shop Network into Canada

Fleetio's expanded network gives transportation departments new access to verified repair partners, faster approvals, and real-time repair tracking.

Read More →
Technician using Truck Check-Up diagnostic software on a Panasonic Toughbook laptop inside a truck cab
Maintenanceby News/Media ReleaseSeptember 10, 2025

Noregon Updates Shop Management System, CARB Inspection Tool

The maintenance company's Truck Check Up and ShopPulse products receive enhancements and feature updates.

Read More →
A man in a grey t-shirt works on the electrical components to a school bus stop arm.
Maintenanceby News/Media ReleaseSeptember 8, 2025

Pro-Vision Launches FleetGuard Maintenance Plan

The company's new maintenance program offers inspections, fast repairs, and support to keep school bus video systems running.

Read More →
Ad Loading...
Durham School Services Ann Arbor team with ASE Blue Seal of Excellence plaque in front of a school bus
Maintenanceby News/Media ReleaseAugust 29, 2025

Durham School Services Recognizes New ASE Master Technicians and Blue Seal Locations

Eleven techs across the school bus contractor have achieved master mechanic status, while six Durham operations earn new Blue Seal status.

Read More →