Wiseco K695M9558 Nissan VR38DETT Professional Series Forged Piston 95.58mm Bore 1.210in Compression Height

The Wiseco K695M9558 is a Professional Series forged racing piston designed for the Nissan VR38DETT engine, featuring a 95.58 mm (3.760 in.) bore and a 1.210 in. compression height. Built for serious racers and high-output engine builders, this dome-style piston is engineered to handle heavy to severe duty race applications with uncompromising reliability.

Manufactured in the USA from 2618 high-strength aluminum alloy, this piston delivers superior tensile strength and fatigue resistance critical for forced induction and high-horsepower builds. The fully machined crown features precision tolerances, and the piston pin bore accepts a 0.9055 in. (23 mm) wrist pin.

Key Features:

• 2618 Aluminum Alloy — engineered, forged, and machined in the USA for improved tensile strength
• Dome Crown Design — optimized combustion geometry for the VR38DETT platform
• ArmorGlide® Skirt Coating — reduces friction, resists seizure, and promotes quieter operation
• Fully Machined Crown — precision-machined valve pockets and crown features for tight tolerances
• Precision Ring Grooves — designed for consistent ring seal under severe duty conditions
• Premium Rings Included — packed with custom-level performance and durability hardware
• 95.58 mm Bore — standard bore diameter for the Nissan VR38DETT
• 1.210 in. Compression Height — engineered for specific deck height and rod length configurations
• 0.9055 in. Pin Diameter — compatible with standard VR38DETT wrist pin dimensions

The Wiseco Professional Series represents a no-expense-spared approach to piston design, making the K695M9558 the ideal choice for builds targeting extreme power levels in the Nissan VR38DETT engine.