Subaru OEM Water Pump Forester 1998-2005 / Impreza / Outback 1997-2005 | 21111AA007

Overview

The Genuine Subaru OEM Water Pump (Part #21111AA007) is a direct factory-replacement cooling system component engineered to maintain optimal engine temperature in compatible Subaru vehicles. Designed for the EJ-series horizontally-opposed (boxer) engines found in the Impreza, Forester and Outback, this OEM water pump ensures precise fit, factory-rated flow performance, and long-term reliability. Whether you're performing a timing belt service or addressing a coolant leak, replacing your water pump with a genuine Subaru part is the smartest investment in your engine's longevity.

Key Features & Benefits

• Genuine Subaru OEM Quality — Manufactured to exact factory specifications, ensuring a perfect fit and function without modification or adaptation.
• Exact-Fit Replacement — Designed specifically for EJ-series boxer engines; no guesswork, no adapter kits, no aftermarket compromises.
• Factory-Grade Sealing — OEM gasket surfaces and impeller tolerances prevent coolant leaks and maintain proper system pressure from day one.
• Optimal Coolant Flow — Engineered impeller design delivers factory-spec coolant circulation to protect against overheating and thermal stress.
• Backed by Subaru's Factory Warranty — Genuine OEM parts are covered under Subaru's standard parts warranty when installed by an authorized dealer.
• Ideal Timing Belt Service Companion — Commonly replaced during timing belt intervals (105,000 miles) to maximize value and prevent future teardown costs.
• Corrosion-Resistant Construction — OEM materials resist the corrosive effects of coolant additives and extended service intervals.

What's Included

• 1x Genuine Subaru OEM Water Pump — Part #21111AA007

Specifications

Fitment & Compatibility

This Genuine Subaru OEM Water Pump (21111AA007) is compatible with the following vehicles:

1998-2005 Subaru Forester

1997-2005 Subaru Impreza

1997-2005 Subaru Outback

Always verify your vehicle's engine code and VIN against Subaru's parts catalog before ordering to confirm fitment.

Installation

This water pump is a timing belt-driven component and requires removal of the timing belt, tensioner, and related components for access. Installation is recommended as part of a complete timing belt service (including tensioner and idler pulley replacement). Professional installation by a qualified Subaru technician or experienced mechanic is strongly advised. Torque all fasteners to Subaru factory specifications and flush/refill the cooling system with Subaru-approved coolant upon completion.