ID
1019574
$ 641.03
1-2 weeks delivery time
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The Nanni Diesel 970302403 oversize piston (+0.5) is a precision engine internal component for the crankshaft and pistons assembly, built to restore correct piston-to-bore fit during engine service work. Designed for 4.190HE engines, it supports efficient compression, stable combustion, and dependable running under marine load conditions.
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Oversize +0.5 Engine Piston for the Crankshaft and Pistons Assembly
The Nanni Diesel 970302403 is an oversize piston (+0.5) used within the crankshaft and pistons assembly on Nanni marine diesel engines. As a core moving component in the cylinder, it transfers combustion force to the connecting rod and crankshaft while helping maintain strong compression for consistent power delivery.
Compatibility
- 4.190HE engines
Technical Specifications
Part Number 970302403 Oversize +0.5
Product Details
- Brand: Nanni Diesel
- Component Type: Piston
- Assembly Location: Crankshaft and Pistons
Features
- Oversize piston option to support engine rebuild and bore-matching work
- Designed to operate reliably under marine thermal and load cycles
- Helps maintain compression stability for efficient combustion
- OEM replacement part for proper fit within the 4.190HE rotating assembly
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