Subaru OEM Engine Block Heater Subaru WRX / STI / Baja / Forester / Impreza / Legacy | A0910AS101

Overview

The Genuine Subaru OEM Engine Block Heater (Part #A0910AS101) is a factory-engineered cold-weather solution designed to pre-warm your engine before startup, reducing wear, improving cold-start performance, and helping your cabin heat up faster. Built to exact Subaru factory specifications, this block heater is the ideal choice for Subaru owners in cold climates who demand reliable, frost-proof starts without compromising engine integrity.

Key Features & Benefits

• Genuine Subaru OEM Quality – Manufactured to factory specifications for guaranteed fit, function, and durability – no modifications required.
• Reduces Cold-Start Engine Wear – Pre-warming the engine block allows oil to circulate immediately at startup, dramatically reducing friction and long-term engine wear in freezing temperatures.
• Faster Cabin Heat – A warmed engine reaches operating temperature quicker, meaning your heater delivers warm air sooner on cold mornings.
• Improved Fuel Efficiency – A pre-warmed engine runs more efficiently from the moment you start it, saving fuel and reducing emissions during the critical warm-up phase.
• Direct Plug-In Convenience – Connects to a standard 120V household outlet, making it easy to use at home or in the garage with no special wiring required.
• Exact-Fit Guarantee – Engineered specifically for compatible Subaru models; no drilling, splicing, or modifications needed for installation.
• Factory Warranty Backed – As a genuine Subaru part, eligible for Subaru's OEM parts warranty when properly installed.

What's Included

• 1x Genuine Subaru OEM Engine Block Heater (Part #A0910AS101)

Specifications

Fitment & Compatibility

Product Fitment:

• 2003-2006 Subaru Baja
• 2000-2013 Subaru Forester
• 2000-2001 Subaru Impreza
• 2003-2014 Subaru Impreza
• 2000-2009 Subaru Legacy
• 2004-2014 Subaru STI
• 2006-2007 Subaru Tribeca
• 2003-2014 Subaru WRX

Always verify fitment using your vehicle's year, make, model, and trim before purchasing. When in doubt, consult your VIN or contact your local Subaru dealer for confirmation.

Installation

This engine block heater is designed as a direct-fit OEM accessory for compatible Subaru models. Installation typically involves removing a freeze plug from the engine block and installing the heater in its place, then routing the power cord to an accessible location. Professional installation is recommended if you are not comfortable performing this procedure, as improper installation can cause coolant leaks or engine damage. Always follow the instructions included with the product and consult your factory service manual for model-specific guidance.