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K1 SUBARU. EJ-25. 130.5mm 'H' Beam

Stock Code:
039DD21131
Description:
SUBARU. EJ-25. 130.5mm 'H' Beam ARP-2000 Bolts.
Stock Level
In Stock
$723.38
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K1 Conrods

  • Part: K1 Technologies Connecting Rod Set
    Part Number: 039DD21131
    Engine Fitment: Subaru EJ20 / EJ25 engines (including turbo variants like EJ205, EJ207, EJ255, EJ257, etc.) — common in WRX & STI and other Subaru models with EJ20/EJ25 engines.

    Key Specifications

    • Rod Type: H‑Beam design (for strength and stiffness)

    • Length (center‑to‑center): 130.50 mm (5.137″)

    • Material: Forged 4340 Steel (high‑strength performance material) 

    • Pin End Bore: 23.00 mm (fits 23 mm wrist pin pistons) 

    • Big End Bore (Housing): 55 mm (for EJ20/EJ25 crank journal) 

    • Rod Bolt Size: 3/8″ ARP 2000 bolts included 

    • Finish: Shot‑peened & precision machined for strength and fatigue resistance 

    • Weight Matched: Rods are typically balanced within ±1 gram per end before shipping.

    • Wrist Pin Style: Full‑floating bronze bushings for low friction & durability.

    Application / Fitment

    These rods are designed for Subaru EJ‑series engines with 23 mm wrist pin pistons — which means they’re suitable for both naturally aspirated and turbo variants of:

    • Subaru Impreza WRX / STI (EJ20/EJ25)

    • Forester XT / Legacy GT

    • Other Subaru models that use EJ20/EJ25 short‑block architectures

    They’re commonly used in builds with EJ205, EJ207, EJ255, EJ257 engines, including performance and turbo applications.