Cummins ISB 5.9 Parts - Piston Kit Section

Cummins ISB 5.9L Piston Kit Catalog

Support for Marine, Industrial, and Generator Applications

Diesel Pro Power offers a trusted source for Cummins ISB 5.9 piston kits and supporting components, ideal for overhaul, in-frame, or top-end rebuilds. Whether you're maintaining a marine propulsion engine, genset, or industrial rig, our high-quality piston kits are matched to exact CPL numbers to ensure compatibility and optimal performance.

What’s Included in a Cummins ISB 5.9 Piston Kit?

Each Cummins ISB 5.9 piston kit typically includes:

• Forged or cast-aluminum piston (1-piece construction)

• Wrist pin (piston pin)

• Pin retainers or snap rings (where applicable)

• Compatible with standard-size cylinder liners and piston rings

All components meet or exceed OEM standards and are compatible with marine and industrial engines using CPL-configured ISB 5.9 platforms.

Cummins ISB 5.9 Piston Kit for CPL 429, 2998, 8123, 8134, 8135, 8213, 8228, 8416, 8464, 8732

Features:

• Designed for ISB 5.9 and QSB 5.9 engines

• One-piece piston with pin

• Standard-size configuration

• Excellent thermal stability for heavy-duty performance

• Ideal for use in marine engines, commercial generators, or industrial vehicles

Common Uses:

• Marine auxiliary engines

• Mid-range diesel generators

• Agricultural and construction machinery using ISB 5.9 engines

Cummins ISB 5.9 Piston Kit for CPL 2624, 8136, 8218, 8223, 8410

Features:

• Designed for ISB 5.9 only

• Piston with pin included (1-piece construction)

• Precision-machined for high wear resistance

• Tailored to specific CPL codes for seamless fitment

Component Compatibility:

• Use with compatible piston rings (see options below)

Applications:

• Water-cooled diesel propulsion systems

• Stationary power equipment

• Marine auxiliary drives or commercial workboats

Piston Ring Sets for Cummins ISB 5.9

Cummins Piston Ring Set 

Fits ISB 4.5, ISB 5.9, and ISB 6.7 engines

This versatile piston ring set supports multiple Cummins ISB engine displacements. It features:

• One ring set per piston

• Precision-ground sealing surfaces

Recommended For:

• In-frame or top-end rebuilds

• High-compression applications requiring excellent oil control

Engine Types Supported:

• Cummins ISB 4.5

• Cummins ISB 5.9

• Cummins ISB 6.7

Applications:

• Light-duty marine propulsion systems

• Stationary backup generators

• Mid-sized off-road machinery (cranes, pumps, etc.)

Benefits of Diesel Pro Power’s Cummins ISB 5.9 Piston Kits

Precision-Matched to CPLs

We only list piston kits by Cummins CPL (Control Parts List) number, ensuring the exact fit for combustion chamber design, compression height, pin diameter, and ring groove placement. No guesswork—just direct compatibility.

Marine and Industrial Focus

Unlike generic aftermarket suppliers, we cater exclusively to marine and industrial Cummins engines. Whether you're running a genset on a barge or a water pump in a construction application, our piston kits are application-ready.

High Inventory, Fast Shipping

All ISB 5.9 piston kits listed are in stock and ready to ship, minimizing downtime for your operations. Diesel Pro Power ships globally and has over 40,000 satisfied customers worldwide.

Tips for Selecting the Right Cummins ISB 5.9 Piston Kit

• Confirm your CPL number before ordering. It’s the most accurate method for identifying the correct piston configuration.

• Inspect cylinder liner condition: Always replace or hone liners if pistons or rings show excessive wear.

• Replace piston rings with every piston replacement to maintain compression and reduce oil consumption.

• Check for cylinder scoring, valve seating issues, and head gasket condition during the rebuild process.

Additional Rebuild Components

Looking to complete your overhaul? Consider bundling the following:

• Cylinder Liners: Available in standard sizes with proper salvage sleeves

• Full Gasket Sets: Top end and bottom end kits compatible with ISB 5.9

• Main and Rod Bearings: Available in standard and oversize

• Oil Pumps & Water Pumps: Maintain full lubrication and cooling efficiency

• Fuel Injectors: Refresh atomization and boost efficiency during rebuild

Common CPL Numbers for ISB 5.9 Piston Kits

Here’s a quick reference for common Cummins ISB 5.9 CPL numbers we support in this catalog:

Why Choose Diesel Pro Power?

• Trusted by marine operators worldwide for over two decades

• Industry-leading expertise in Cummins engine platforms

• Dedicated customer support for part compatibility and installation questions

• Fast global shipping from a fully stocked warehouse

• Exclusive focus on non-automotive diesel applications