Wiseco K586M895 Forged 89.5 mm -22 cc Pistons for Nissan KA24DE

Vehicle Fitment

• Nissan KA24DE (2.4 L, 16-valve, 4-cyl)
• Nissan 240SX (1995-1998, KA24DE)
• Nissan Hardbody / Pickup with KA24DE engine

Features

• Forged from 2618 aerospace-grade aluminum for excellent strength and fatigue resistance
• ArmorGlide® skirt coating for reduced friction and seizure resistance
• Dished -22 cc crown design to lower compression to ~9.0:1
• Strutted forging for enhanced rigidity in high-stress areas
• Fully machined crown and precision-cut ring grooves
• Forced-pin oiling to ensure proper lubrication at high RPM
• Includes high-performance piston ring set (8950XX)
• 21 mm (0.8268") wrist pins for strong piston-to-rod connection

Specifications

• Bore: 89.50 mm
• Compression Height: 33.94 mm
• Piston Dish Volume: -22.00 cc
• Estimated Compression Ratio: ~9.0:1
• Wrist Pin Diameter: ~21.0 mm
• Piston Material: Forged 2618 aluminum
• Nominal Piston Weight: ~358 g each
• Ring Set: 8950XX

Included Components

• 4x forged dished pistons (89.5 mm, -22 cc)
• 4x 21 mm wrist pins
• 4x circlips / locks for wrist pins
• 4x high-performance piston ring sets (8950XX)

Product Description

The Wiseco K586M895 piston kit is engineered for the Nissan KA24DE engine. Built from high-strength 2618 forged aluminum, these pistons are designed for performance and durability even under demanding conditions. The -22 cc dished crown lowers compression, making them suitable for modified or high-boost applications where a lower static compression ratio is desired.

With ArmorGlide® coated skirts, these pistons reduce friction and resist seizure, while the strutted forging design reinforces the structure under load. Forced-pin oiling ensures reliable lubrication during high-RPM operation. The included 8950XX ring set and 21 mm wrist pins complete the kit, giving you everything necessary for a strong, high-performance rebuild.

Installation requires proper verification of bore-to-wall clearance, ring end gaps, and deck height to optimize performance and longevity. For best results, choose an appropriate head gasket thickness and verify compression ratio based on your specific head and build.