The Subaru SP Series overhead cam engines lead the industry in technology offering more power, less noise and easy, one pull starting every time. Introduced as the first air-cooled engine series to use advanced chain-driven overhead cam technology, the Subaru SP Series provides maximum efficiency, performance and power with minimal noise and emissions. The engine design is extremely compatible and easy to install, and simply exchanges with most existing slant cylinder engines.

Models: SP170

Subaru EH72 25hp LP/NG is keyed shaft v-twin engine optimized to run on vapor withdrawal LP or natural gas. This engine is EPA and CARB certified for both stationary or portable applications. 

Models: V-Twin LP/NG

A high performance v-twin model that is only 4mm higher than the current 25hp.The new EH72 FI offers easy and surefire start-up performance as well as excellent running performance. The EFI engines run on a open-loop system, which utilizes an electronic control unit (ECU)

Models: V-Twin Fuel Injection

Models: EH025, EH035, EH035V

With six models ranging from 4.5- to 14-horsepower, the Subaru overhead cam engines lead the industry in technology offering more power, less noise and easy, one pull starting every time. Introduced as the first air-cooled engine line to use advanced chain-driven overhead cam technology, the Subaru EX Series provides maximum efficiency, performance and power with minimal noise and emissions. The engine design is extremely compatible and easy to install, and simply exchanges with most existing slant cylinder engines.


Models: EX13, EX17, EX21, EX27, EX30, EX35, EX40

With a horsepower range of 6.0-11.0 and four models in the family, these air-cooled engines offer great performance at an affordable price, making them suitable for homeowners, recreational user and light-duty professional users. The engines’ compact, lightweight design remains balanced with heavy-duty features that provide for enhanced durability.


Models: EH17-2, EH25-2, EH30, EH34

Designed for high performance in medium to heavy-duty applications, these engines provide exceptional reliability for professional use. With horsepower ratings of 11.5 and 13.5, the EH36 and EH41 work well in a wide range of applications and offer high performance, easy starts and maximum durability.$0

Models: EH36, EH41

Designed with specific rammer engineering requirements, these engines feature overhead valve (OHV) upright cylinder technology to provide continuous rated power for demanding rammer applications. Rammer engines are easy starting and lightweight, yet built for high power, high stress and high performance.


Models: EH09, EH12-2

Featuring six models ranging from 18 to 25 horsepower, the V-Twin cylinder series engines are the workhorses of the Subaru engine line. This engine series provides maximum versatility offering models with horizontal or vertical PTO shafts, allowing engines to be used for an even greater variety of industrial and construction equipment. Compared to conventional side-valve engines, Subaru’s V-Twin provides smooth, reliable torque throughout the rpm range, improved breathing room at high rpm and low fuel consumption.


Models: EH63, EH63V, EH64, EH65, EH65V, EH72