2 SPI Standard Bore Piston Kits for Yamaha VK540, VK540 II & VK540 III 73mm

2 SPI Standard Bore Piston Kits for Yamaha

This set of two SPI standard bore piston kits is designed for Yamaha VK540, VK540 II, and VK540 III snowmobiles, featuring a 73mm bore size to restore engine performance.

Overview

These piston kits provide all necessary components for a top-end rebuild on Yamaha VK540 series engines. Each kit includes a piston, rings, and wrist pin, engineered to match OEM specifications. Ideal for snowmobile enthusiasts restoring VK540 models.

Built For Performance

• Precision-machined from high-strength aluminum alloy for durability
• Plasma-moly rings reduce friction and improve seal
• Standard bore 73mm size for direct replacement
• Includes wrist pin, circlips, and ring set
• Tested to meet demanding snowmobile engine conditions

Fits These Machines

• for Yamaha VK540
• for Yamaha VK540 II
• for Yamaha VK540 III

On-The-Job Use

• Rebuilding snowmobile engines for winter riding and racing
• Restoring Yamaha VK540 sleds to original performance
• Performing top-end overhauls during off-season maintenance
• Competition use where reliable power is critical

Specs At A Glance

Good To Know

Q: What engines do these piston kits fit? A: These fit Yamaha VK540, VK540 II, and VK540 III snowmobile engines.

Q: Are these direct replacements for OEM parts? A: Yes, these SPI piston kits are designed as direct replacements, using OEM specifications for bore size and ring configuration.

Slight variation in finish or dimensions may occur between production runs, and confirm compatibility before ordering.