Yanmar M200 Piston Rod
Mega Marine supplies genuine and reconditioned piston rod for Yanmar M200 marine engines, along with complete engines and a comprehensive range of spare parts. Fast RFQ response and global delivery.
The piston rod is a precision-machined component unique to 2-stroke crosshead engines, connecting the piston to the crosshead assembly below the piston skirt. It passes through the stuffing box — a critical sealing arrangement that separates the combustion space from the crankcase, preventing contamination of the lubricating oil system by combustion gases.
Function in the Engine
Transmits combustion forces from the piston to the crosshead, maintains rigid alignment between piston and crosshead, works with the stuffing box seals to prevent hot combustion gases entering the crankcase.
About the Yanmar M200
200mm bore Yanmar M-series medium-speed engine for propulsion and generator applications in smaller commercial vessels.
Common Issues Requiring Replacement
Surface wear and scoring at the stuffing box contact zone, fatigue cracking under high cyclic compressive and tensile loads, corrosion from acidic combustion condensates, thread damage at piston and crosshead connection points.
Mega Marine supplies genuine OEM and quality reconditioned piston rod for Yanmar M200 engines, with full traceability and global shipping to any port worldwide. We respond to quote requests within 4–6 hours.
- Engine Brand
- Yanmar
- Engine Model
- M200
- Part Category
- Piston Rod
- Condition
- Genuine & Reconditioned
Browse the full M200 parts range.
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