Manley 14024-1 H-Beam Connecting Rod for Subaru EJ18/20/22/25 Engines

Vehicle Fitment

• Fits multiple Subaru vehicles equipped with EJ-series engines;
• 2002-2005 Subaru Impreza WRX
• 2004-2014 Subaru Impreza WRX STI (including Limited & Special Edition)
• 2008-2014 Subaru Impreza WRX variants (Premium, TR)
• 1995 Subaru Legacy (base); select EJ-series applications (engine rebuilds)
• Also fits 2005-2006 Saab 9-2X Aero with appropriate EJ engine
• Compatible EJ engines: EJ18, EJ20, EJ22, EJ25 when used in custom or rebuilt engines

Features

• H-beam design forged from high-strength 4340 steel
• Individually heat treated, stress relieved, shot peened, and magnafluxed
• Weight matched to ±1.5 g for balance and smooth engine operation
• Precision machined big end and pin bores for reliability
• 3/8" ARP 2000 cap fasteners deliver robust clamping force
• H-beam provides excellent strength for boosted or high-rpm applications
• Sold individually - ideal for partial engine rebuilds or custom builds
• Engine builders commonly use for performance or high-stress rebuilds

Specifications

• Part Number: Manley 14024-1
• Application: Connecting rod - Subaru EJ18 / EJ20 / EJ22 / EJ25 engines
• Rod Style: H-beam forged steel
• Center-to-Center Length: 5.137" (~130.5 mm)
• Big End Bore: ~2.165" (~54.99 mm)
• Big End Width: ~0.840"
• Pin Diameter: ~0.9055" (~23 mm)
• Pin Bore: ~0.9063"
• Material: 4340 forged steel
• Fasteners: 3/8" ARP 2000 cap bolts
• Weight (each): ~525 g (nominal)

Included Components

• 1x Manley H-Beam connecting rod (14024-1)
• 1x Set of ARP 2000 cap fasteners
• (Rod bearings and additional hardware not included)

Product Description

The Manley 14024-1 H-Beam connecting rod is a premium performance engine component designed for Subaru EJ-series engines - including EJ18, EJ20, EJ22, and EJ25 configurations commonly found in WRX, WRX STI, and other EJ-powered vehicles. Offered individually, this rod is ideal for custom builds, performance engine rebuilds, and applications where strength and durability are critical. The forged 4340 steel H-beam design, combined with precision machining and quality heat treatment, provides a strong and reliable connection between piston and crankshaft under high loads.

Weight matched to close tolerances and finished with ARP 2000 cap fasteners, the 14024-1 supports high-rpm operation and boosted applications. Though often associated with Subaru WRX and STI models from 2002 to 2014 (including Limited and Special Edition variants), this rod can be used in a broader range of EJ engine rebuilds - including select Legacy and Saab 9-2X applications when correctly assembled. Because this is an individual rod, professional engine assembly and verification of clearances, bearings, and torque specs are recommended for optimal performance and longevity.