Cummins ISL Gaskets Catalog

The Cummins ISL engine is a mid-range diesel powerhouse known for its durability, efficiency, and adaptability in both industrial and marine applications. Like any high-performance engine, its reliability depends on a complete sealing system. Gaskets play a critical role in preventing fluid leaks, maintaining compression, and ensuring that each engine system performs at peak efficiency.

This catalog provides a detailed look at every gasket available for the Cummins ISL engine—from upper and lower gasket sets to specialized seals for the oil system, turbocharger, exhaust, intake, and cooling system. Whether you are completing a full overhaul or addressing a specific repair, Diesel Pro Power supplies the exact-fit Cummins ISL gaskets trusted by over 40,000 satisfied customers worldwide.

Complete Gasket Sets for Cummins ISL

Upper Gasket Sets

Upper gasket sets for the Cummins ISL engine include all essential sealing components above the cylinder block. These sets typically feature cylinder head gaskets, intake and exhaust gaskets, valve cover gaskets, and related seals.

• Standard Upper Gasket Set – Designed for ISL engines with conventional fuel systems, ensuring a complete reseal of the top end during cylinder head replacement or repair.

• Upper Gasket Set for High-Pressure Common Rail (HPCR) ISL Engines – Tailored to engines with electronically controlled injection systems, these sets provide superior sealing to withstand the higher pressures of modern fuel delivery.

• Upper Gasket Set for EGR ISL Engines – Specifically engineered for ISL models equipped with Exhaust Gas Recirculation, including all necessary seals to prevent exhaust leaks and maintain emissions compliance.

Each upper gasket set ensures proper fit and compression integrity, supporting both performance and emissions standards.

Lower Gasket Set

The lower gasket set for Cummins ISL covers all sealing needs below the cylinder block, including oil pan gaskets, crankshaft seals, gear housing gaskets, and other lower-end components. This set is essential during a complete rebuild or when addressing oil leaks in the lower section of the engine.

Individual Gaskets for Cummins ISL

Oil System Gaskets

• Oil Pan Gaskets – Available for different configurations of the ISL, these gaskets ensure leak-free sealing between the oil pan and block. Versions are available for pans mounted above or below the stiffener plate.

• Oil Cooler Cover Gasket – Ensures a proper seal for the oil cooler housing, preventing external oil leaks or internal coolant-oil cross-contamination.

• Oil Suction Connection Gasket – Maintains vacuum integrity in the oil pickup system, ensuring proper lubrication throughout the engine.

Turbocharger Gaskets

• Turbo Mounting Gaskets – Designed specifically for the ISL’s water-cooled turbochargers, these gaskets prevent exhaust and coolant leaks at the turbo flange. Both standard and heavy-duty options are available for varying operating conditions.

Intake & Exhaust System Gaskets

• Exhaust Manifold Gaskets – High-temperature gaskets that provide a reliable seal between the cylinder head and exhaust manifold, preventing exhaust leaks that can reduce engine performance.

• Exhaust Outlet Connection Gasket – Ensures a secure seal at the outlet connection, maintaining proper exhaust flow.

• Intake Manifold Cover Gasket – For ISL engines with air heater-equipped manifolds, this gasket ensures tight sealing against boost pressure and intake air leaks.

Valve Train Gaskets

• Valve Cover Gaskets – Available for ISL engines with either 5-bolt or 8-bolt valve covers, ensuring oil-tight sealing during valve inspections and maintenance.

Gear Housing Gasket

The gear housing gasket seals the interface between the engine block and gear housing, preventing oil leaks while protecting the timing gears inside.

Rear Cover Gasket

The rear cover gasket provides a dependable seal at the back of the engine block, ensuring oil containment and structural reliability during operation.

EGR System Gasket

For ISL models equipped with emissions controls, the EGR valve gasket is essential to maintain a clean seal, ensuring the exhaust gas recirculation system operates correctly without leaks.

Sealants & Supporting Products for Cummins ISL

In addition to pre-formed gaskets, sealants and jointing compounds are often used during ISL maintenance and gasket installation to ensure a secure and leak-free seal. Diesel Pro Power offers Cummins-approved compounds designed for high temperature and pressure environments commonly encountered in diesel engines.

• High-Temperature Jointing Compounds – Used in turbocharger applications where extreme heat cycles demand extra sealing support.

• RTV Silicone Gasket Makers – Available in standard, high-temp, and sensor-safe formulations for sealing irregular surfaces and replacing cut gaskets when necessary.

• Threadlockers & Cold Weld Products – Provide additional sealing and structural integrity for bolts, threads, and small repairs during ISL service.

Why Choose Diesel Pro Power for Cummins ISL Gaskets

• Exact Fit for ISL Engines – Every gasket is designed specifically for the Cummins ISL, ensuring compatibility and reliability.

• Fast Worldwide Shipping – Parts are shipped quickly from a trusted global distribution center, minimizing downtime.

• Proven Reliability – Trusted by more than 40,000 satisfied customers across marine, industrial, and heavy-duty applications.

• Bilingual Support – Product descriptions and support are available in both English and Spanish to serve a global customer base.