This complete set of six (6) standard bore Wizard Pro Stock Dual Ring Pistons is designed for Mercury Racing 2.5L V6 2-Stroke Outboard Engines, including the Carbureted 245 HP, EFI 260 HP ROS (Race Offshore), 300 HP Drag, S3000 F1 and both the 280 HP Race and Consumer Editions with steel sleeves.
 
Engineered for maximum power and durability, this high-performance piston kit includes six (6) forged pistons built for extreme performance and longevity, six (6) slip-fit wrist pins for precise fitment, twelve (12) piston rings for optimized sealing and efficiency, and twelve (12) wrist pin clips for secure retention and reliable operation.
 
Before installing these Mercury Racing 2.5L pistons, it is crucial to ensure that your steel-sleeved cylinders meet essential preparation guidelines.
 
The cylinders must be the correct bore size and nearly perfectly round to maintain proper fitment. They should also have a cross-hatching pattern from honing to retain oil and provide lubrication for the pistons.
 
Additionally, the cylinders should not be glazed—a polished, shiny surface can negatively impact ring seating—and they must be free from chips, nicks, cuts, or worn spots that could lead to performance issues.
 
These Wizard Pro Stock Pistons are meticulously crafted to enhance compression, thermal stability, and durability, making them an excellent choice for high-revving Mercury 2.5L V6 outboards used in racing, performance boating, and competitive drag applications.
 
Designed to withstand high RPMs and demanding conditions, they deliver exceptional reliability and efficiency for serious Mercury Racing enthusiasts.
 
For 999s or more information or assistance, contact Mike at +1-714-697-1716 or email Mike@BuckshotRacing77.com.