Wiseco Pro Tru Compact Series Piston Kit for 95-98 Subaru WRX

Description

Wiseco Pro Tru Compact Series Forged Piston Kit
Fits: 1995–1998 Subaru WRX
Part #: K579M925

Wiseco’s Pro Tru Compact Series pistons are designed for engine builders who demand precision, durability, and performance. This forged piston kit delivers optimal sealing, reduced friction, and extended longevity, making it an excellent choice for turbocharged or naturally aspirated WRX builds.

🔧 Specifications:

• Bore Size: 92.5mm (3.642 in)

• Piston Style: Dished (No Valve Reliefs)

• Piston Material: Forged Aluminum

• Compression Distance: 1.181 in

• Piston Head Volume: +17.80cc

• Wrist Pin Style: Press-fit or Floating

• Pin Diameter: 0.906 in

📏 Ring Pack (Pre-Gapped & Included):

• Top Ring: 1.2mm, Steel, Gas Nitrided

• Second Ring: 1.2mm, Cast Iron, Phosphate Coated

• Oil Ring: 2.8mm, Stainless Steel, Standard Tension

• Oil Ring Style: Tab Style

• Gapless: No

• File Fit: No

🛠️ Features:
✔ Precision-forged for strength and reliability
✔ Plasma moly rings for excellent sealing and low friction
✔ Ideal for high-performance street or track applications
✔ Supports custom compression ratio builds

📦 Included:

• (4) Forged Pistons

• (4) Wrist Pins

• (4) Lock Sets

• Pre-gapped Ring Pack

🛑 Note: Professional installation recommended. Please verify compatibility with your specific engine build. Fits most EJ20-equipped 1995–1998 Subaru WRX models.

📬 Fast shipping & careful packaging
💬 Questions? Message us anytime!