Recommended Pump Size for the Reactor™ 40 Hydraulic Autopilots

Garmin offers several different-size pumps for marine autopilot systems. The boat configuration determines which pump is best suited for the application.

1.0 Liter pump:

• Used for single-cylinder applications with cylinder volumes under ten cubic inches

• A single-engine under 150 HP

• Used on Vessels under 25 feet in LOA

• Not used in pressurized air systems

• Used in cruising application only, no high-performance situations that include drastic and erratic movements

• It is not recommended for fishing or applications that require holding heading while trolling at low speeds or operating in rough waters

• It cannot be used in Verado or UFLEX Pro systems

1.2 Liter pump:

• For single-cylinder applications with cylinder volumes from 6 to 14 cubic inches

• It is a High Pressure / Low Volume pump (HPLV)

• Not used in pressurized air systems above 11 psi

• Used in low-speed trolling and cruising speed applications

• It is intended for many hydraulic systems, including Verado and UFLEX Pro systems

2.0 Liter pump:

• For dual-cylinder applications with total cylinder volumes from 10 to 24 cubic inches

• It is a Low-Pressure High Volume (LPHV) pump

• Not used in pressurized air systems above 11 psi

• Used in low-speed trolling and cruising speed applications

• Only recommend for Low-Pressure hydraulic systems

• It cannot be used in Verado or UFLEX Pro systems

2.1 Liter pump:

• Used for single or multiple cylinder applications with total cylinder volumes of 10 to 24 cubic inches

• It is a High Pressure / High Volume pump (HPHV)

• Not to be used in pressurized air systems above 11 psi

• It is used in low-speed trolling and cruising speed applications

• Used in many hydraulic systems, including Verado and UFLEX Pro systems 

• The 2.1l pump was discontinued and replaced with the SmartPump v2

SmartPump v2: 

• It is the most responsive autopilot drive system

• It is used for single or multiple cylinder applications with total cylinder volumes up to 24 cubic inches

• SmartPump v2 is an adaptable pressure and volume pump

• Used in pressurized air systems up to 35-40 psi

• Recommended for high use, rougher waters, high performance and slow speed applications

• Used in many hydraulic systems including Verado and UFLEX Pro systems

SmartPump v1: 

The device had the same SPECs as the SmartPump v2 but was discontinued and replaced with the Smart Pump v2 system.

For more information, visit the Autopilot Reference Table.