Manley 46920DT-4 Steel Piston Ring Set 92 mm Bore for Subaru EJ205/EJ257 WRX/STI

Vehicle Fitment

• Fitment verified: Subaru WRX/STI engines EJ205 and EJ257 - specific years, trims, and drivetrain not fully confirmed.

Features

• Premium steel rings for high-performance sealing and durability.
• Bore size: 92 mm designed for Subaru EJ205 and EJ257 engines.
• Ring widths: Top = 1.2 mm; Second = 1.2 mm; Oil = 2.8 mm.
• Oil ring tension rated at 7-11 lbs for improved oil control.
• File-fit design allows precise installation for engine builders.
• Ideal for naturally aspirated or forced-induction performance builds.
• High-precision manufacturing ensures consistent fit and material quality.
• Helps reduce blow-by and maintain cleaner oil under high-performance conditions.

Specifications

• Bore size: 92 mm (≈3.622")
• Ring widths: Top = 1.2 mm; Second = 1.2 mm; Oil = 2.8 mm
• Oil ring tension: 7-11 lbs
• File-fit rings - final fitment must be checked by installer.
• Set includes 4 rings for the engine.

Included Components

• 1x Complete ring set (4 rings) - top, second, and oil rings for 92 mm bore EJ205/EJ257 engines

Product Description

Upgrade your Subaru EJ205 or EJ257 engine with the Manley 46920DT-4 Steel Piston Ring Set. With a 92 mm bore size and ring widths of 1.2 mm, 1.2 mm, and 2.8 mm, these premium steel rings provide improved sealing, reduced blow-by, and better oil control compared to stock rings.

The file-fit design allows precise matching to your piston bore for optimal performance. Ideal for both naturally aspirated and forced-induction setups, this ring set maintains durability under high RPM and high-stress conditions.

Installation requires careful attention to end-gap measurement and proper ring orientation. While designed for Subaru EJ205/EJ257 WRX/STI engines, exact year, trim, and drivetrain compatibility should be verified before use.