Multiquip 8971412080 Piston Ring Set Standard DCA25USI 4LE2

The Multiquip 8971412080 is a genuine OEM Piston Ring Set Standard designed for the DCA25USI ultra-silent diesel generator. Sourced directly from Multiquip, this ring set is manufactured to the exact tolerances required by the Isuzu 4LE2 engine fitted in DCA25USI units, ensuring a correct, reliable engine rebuild every time. If you are servicing or overhauling the engine in your DCA25USI, using the genuine Multiquip 8971412080 is the straightforward path to restoring proper compression and engine performance.

Key Features

• Genuine OEM Compression Integrity — Manufactured to the precise ring gap, width, and radial thickness specifications of the Isuzu 4LE2 engine, maintaining the compression seal that a standard piston ring set must deliver.
• Direct Engine Rebuild Fit — Engineered as a standard-bore replacement that drops into the existing 4LE2 cylinder bore without additional machining, streamlining overhaul time.
• Confirmed DCA25USI Fitment — Verified for use in Multiquip DCA25USI ultra-silent diesel generator units powered by the Isuzu 4LE2 engine.
• Restores Full Engine Output — Worn or broken piston rings allow blow-by, robbing the engine of compression, increasing oil consumption, and causing the generator to run rough or underperform under load. A fresh ring set restores the combustion seal and engine efficiency.
• Critical for Fuel System and Emission Compliance — Proper ring sealing is essential to correct combustion; a compromised ring set can cause excessive exhaust smoke and fuel contamination of the crankcase oil, affecting the generator's operational compliance on regulated job sites.

Piston rings seal the gap between the piston and the cylinder wall, maintaining the compression needed for combustion while also controlling oil from entering the combustion chamber. In a diesel generator engine like the Isuzu 4LE2, this seal directly determines how efficiently fuel is burned and how cleanly the engine runs. When piston rings wear, crack, or lose tension, compression drops, oil consumption rises, and the engine may produce excessive smoke — all signs that a ring set replacement is due to bring the engine back to full working condition.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

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Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.