Subaru OEM Cam Gear - Left Exhaust (EJ25D) | 13054AA020

Overview

The Genuine Subaru OEM Cam Gear – Left Exhaust (Part #13054AA020) is the factory-original camshaft sprocket designed specifically for the EJ25D Phase 1 dual overhead cam engine. Built to exact Subaru engineering tolerances, this left exhaust cam gear ensures precise valve timing, optimal engine performance, and long-term reliability. It is the ideal replacement for worn, damaged, or stretched cam gears on compatible Subaru vehicles equipped with the EJ25D powerplant.

Key Features & Benefits

• Genuine Subaru OEM Part – Manufactured to factory specifications, guaranteeing an exact fit and function with no modifications required.
• Precise Valve Timing – Maintains accurate cam-to-crank timing for optimal combustion efficiency, power output, and fuel economy.
• EJ25D-Specific Design – Engineered exclusively for the Phase 1 EJ25D dual overhead cam engine; not interchangeable with EJ25 Phase 2 or other EJ-series variants.
• Factory Warranty Coverage – As a genuine Subaru part, this cam gear is backed by Subaru's OEM parts warranty when installed by an authorized dealer.
• Durable Construction – Made from high-grade materials to withstand the heat cycles, oil exposure, and mechanical stress of the EJ25D valvetrain.
• Left Exhaust Position – Correct designation for the driver-side exhaust camshaft sprocket; critical to order the correct gear for your specific cam bank.

What's Included

• 1x Genuine Subaru Left Exhaust Cam Gear (Part #13054AA020)

Specifications

Fitment & Compatibility

This cam gear is compatible with Subaru vehicles equipped with the EJ25D Phase 1 DOHC engine. The EJ25D was used in a limited production window. Please verify your engine code before ordering. Typical fitment includes:

Important: The EJ25D (Phase 1) is a distinct engine from the later EJ251/EJ252/EJ253 SOHC engines and the EJ257 turbocharged engine. Always confirm your engine code (located on the engine block) before purchasing. This part is not compatible with SOHC EJ25 variants.

Installation

Cam gear replacement on the EJ25D requires removal of the timing belt, timing belt covers, and camshaft position components. This procedure involves resetting engine timing and is considered an intermediate-to-advanced level repair. Professional installation by a qualified Subaru technician or experienced mechanic is strongly recommended to ensure correct valve timing and prevent engine damage. Always replace the timing belt and related components (idler, tensioner, water pump) when accessing the cam gears.