What material are these pistons made from?

These pistons are forged from 2618 aluminum, which offers improved tensile strength compared to cast aluminum. This material choice is crucial for handling the higher stresses in performance engine builds.

What is the ArmorGlide skirt coating for?

The ArmorGlide coating on the piston skirts is designed to reduce friction and noise during operation. It also helps to resist seizure, which is important for engine longevity under demanding conditions.

Are these pistons compatible with all RB25DET engines?

This kit is specifically for the RB25DET engine and features an 86.50 mm bore. It's important to verify your engine's specifications and intended use to ensure these pistons are the correct choice for your build. Note that they are not CARB approved for use in California.

Wiseco Nissan RB25 Piston Kit K578M865AP - Forged 86.50mm

Name: Wiseco Nissan RB25 DOME 6578M865 Piston Kit
Brand: Wiseco
SKU: wiseco-wiseco-nissan-rb25-dome-6578m865-piston-kit-t14-244037
Price: 1090.99 USD
Availability: InStock

Wiseco Nissan RB25 DOME 6578M865 Piston Kit

$1090.99

Only 4 left in stock

Wiseco Nissan RB25 DOME 6578M865 Piston Kit. Forged 86.50mm pistons for severe duty builds.

Key Features

Fits Nissan RB25DET engines.
Forged from 2618 aluminum for improved tensile strength.
86.50 mm bore size.
Features an ArmorGlide skirt coating for reduced friction and seizure resistance.
Includes forced pin oiling for better lubrication.
Designed for heavy to severe duty performance applications.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

Secure CheckoutFast Shipping631-982-0042

Product Details

Forged from 2618 aluminum, these Wiseco pistons are built for the demands of serious RB25DET engine builds. The 86.50 mm bore size is a common upgrade for those looking to increase displacement and power. Wiseco machines these pistons in the USA, ensuring precise tolerances for critical components like the ring grooves and anti-detonation features, which help prevent engine damage under high stress.

You'll find an ArmorGlide skirt coating on these pistons, designed to reduce friction and noise while also resisting seizure. This coating, combined with forced pin oiling and a fully machined crown, contributes to the overall durability and performance needed for heavy or severe duty applications. The kit includes everything needed for a set of six cylinders, ready for your performance engine project.

When rebuilding your RB25DET, especially for performance applications, using well-built forged pistons like these is a smart choice. They offer improved tensile strength over cast pistons and are designed to handle the increased cylinder pressures and temperatures that come with performance tuning. Please note that these pistons are not CARB approved and cannot be shipped to California.