BorgWarner Alternator Kit for Subaru EJ20 Engines

BorgWarner Alternator Kit for Subaru EJ20 Engines Specifications

Original Subaru alternators today have two major disadvantages:

• They are getting older, alternators on EJ20 have more than 20 years old, sometimes up to 30 years old and often hundreds of thousands of kilometers. Their reliability becomes critical, Subaru does not make them anymore or the prices charged are prohibitive, and the aftermarket offers only very few opportunities.
• Their amperage, usually between 75 and 95A, is insufficient nowadays for modified vehicles equipped with electric accessories such as high flow fuel pumps, high performance ignition, electric water pumps and fans, modern PDM and ECU, car audio...

With this observation, our partner MZR Garage has developed a kit to install a modern BorgWarner alternator on Subaru EJ20 engines. This is a very common BorgWarner part number, very reliable and ensuring 150A continuously. This "plug & play" kit has been designed to install a BorgWarner alternator as a direct replacement of the original alternator, and guarantees reliable and linear intensity and tension regardless of the load and engine rev.

Kit Contents

• BorgWarner 150A alternator
• Mounting bracket(s)
• Bolts, washers and various hardware
• Electrical connector
• Installation instructions in French and English, also downloadable here.

This kit is compatible with all Subaru EJ20 and EJ20T engines on models such as Impreza, Legacy, Forester... It has been tested on stock and over 500 hp engines. It is also available for Nissan RB, SR & CA and Toyota 1JZ & 2JZ, among others.

Please note, this kit is supplied without belt and is not compatible with the OEM belt.