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Upgrading a Garmin Autopilot to the Reactor 40
Sometimes a Garmin legacy autopilot (those autopilot systems prior to the Reactor 40 series) have a part fail or it is wished to upgrade a legacy autopilot system with newer Reactor 40 components.
How to interpret the tables and use the information to figure out compatibility between devices:
The three tables below show compatibility between autopilot system components. Each table shows all the different devices that can be interchanged for a similar device or with other devices in the Autopilot system. The table is read like a multiplication table; on the left-hand column is the part and across the top the autopilot series, the box that lines up underneath that row and column will show a yes or no answer.
In certain situations, if one part of the autopilot has failed several other devices may also need replacement to get that Autopilot system functional; cables and extensions, split-ring adapters, and to allow for NMEA 0183 or NMEA 2000 networking.
GHP Autopilot Device Compatibility
Hydraulic Autopilot Systems | |||||
| Pumps: 1.2L / 2.0L / 2.1L | |||||
| GHP 10 Marine Autopilot w/GHC 10 | GHP 10 Marine Autopilot w/GHC 20 (010-00705-05) | GHP Reactor Hydraulic (010-00705-15) | Reactor 40 Hydraulic (010-00705-19) | Reactor 40 Hydraulic w/out GHC 20 | |
GHC | |||||
| GHC 10 (7-pin or N2K) | Yes | No | No | No | No |
GHC 20 (010-01141-00) | No | Yes | Yes | Yes | Yes |
| GHC 50 (010-02731-00) | No | No | Yes | Yes | Yes |
CCU | |||||
GHP CCU 10 (010-11052-00) | Yes | Yes | No | No | No |
| GHP Reactor CCU (010-11052-62) | No | No | Yes | No | No |
| Reactor 40 CCU (010-11052-67) | No | No | No | Yes | Yes |
ECU | |||||
| GHP ECU 10 9010-11053-00 | Yes | Yes | Yes | No | No |
| GHP ECU 10 (010-11053-02) | No | No | No | Yes1 | Yes1 |
Interconnect Cable | |||||
| Interconnect Cable (010-11055-00) | Yes | Yes | No | No | No |
| Interconnect Cable (010-11351-40) | No | No | Yes | Yes | Yes |
1 ECU 10 colored Threaded ports 010-11053-02
SmartPump Device Compatibility
SmartPump | |||||
| GHP 20 Corepack w/ SmartPump | GHP 20 Corepack w/ SmartPump GHC 20 | Reactor Hydraulic w/ SmartPump | Reactor 40 Hydraulic w/ GHC 20 | Reactor 40 Hydraulic w/out GHC 20 | |
GHC | |||||
| GHC 10 N2K | Yes | No | No | No | No |
| GHC 20 | No | Yes | Yes | Yes | Yes |
| GHC 501 | No | No | Yes | Yes | Yes |
CCU | |||||
| GHP 20 Hydraulic Compass ball (010-11052-40) | Yes | Yes | No | No | No |
| GHP Reactor CCU (010-11052-62) | No | No | Yes | No | No |
| Reactor 40 CCU (010-11052-67) | No | No | Yes | Yes | Yes |
Interconnect Cable | |||||
| Interconnect Cable (010-11055-30) | Yes | Yes | No | No | No |
| Interconnect Cable (010-11351-40 | No | No | Yes | Yes | Yes |
1GHC 50 will not support calibration on the GHP 10, GHP 12, GHP 20
Reactor 40 Mechanical / Retrofit / Solenoid Compatibility
Mechanical / Retrofit / Solenoid | |||||
| GHP 12 Autopilot (010-00705-30) | GHP 12 Autopilot w/GHC 20 (010-00705-40) | GHP Reactor Mechanical/Retrofit/Solenoid (010-00705-45) | GHP Reactor 40 Mechanical/Retrofit/Solenoid (010-00705-49) | GHP Reactor 40 Mechanical/Retrofit/Solenoid w/o GHC 20 (010-00705-48) | |
GHC | |||||
| GHC 10 N2K | Yes | No | No | No | No |
| GHC 20 | No | Yes | Yes | Yes | Yes |
| GHC 501 | No | Yes | Yes | Yes | Yes |
GHP | |||||
| GHP 12 CCU (010-11052-30) | Yes | Yes | No | No | No |
| GHP Reactor CCU (010-11052-62) | No | No | Yes | No | No |
| Reactor 40 CCU (010-11052-67) | No | No | No | Yes | Yes |
| GHP 12 (010-11053-30) | Yes | Yes | Yes | Yes | Yes |
Interconnect Cable | |||||
| Interconnect Cable (010-11055-30) | Yes | Yes | No | No | No |
| Interconnect Cable (010-11351-40) | No | No | Yes | Yes | Yes |
1GHC 50 will not support calibration on the GHP 10, GHP 12, GHP 20
Upgrade Examples
The discontinued ECU 10 (gray with black connectors) has failed. Can the ECU 10 (threaded) without replacing other autopilot devices in the existing system?
The vessel has the following devices already installed:
1.2-liter pump
GHP 10 CCU
GHC 10 (N2K Powered)
GHP 10 ECU (gray with black connectors)
Interconnect Cable PN 010-11055-00
What will make the Autopilot functional again?
- In this case, purchasing a new Reactor 40 Hydraulic Corepack would be less expensive than replacing individual components.
The 1.2-liter pump is still functional.
- In this scenario, two threaded locking collars, part number 010-11170-01, are also needed on the pump and ECU
The discontinued GHP 20 Hydraulic CCU (compass ball) has failed, can a different CCU be utilized?
The vessel has the following devices installed:
SmartPump
GHC 10 (N2K Powered)
GHP 20 Hydraulic CCU
Interconnect Cable PN 010-11055-30
What will make the autopilot functional again?
The user needs to replace the following:
GHP 20 Hydraulic CCU for the Reactor 40 CCU
GHC 10 for the GHC 20 or GHC 50
Replace the old interconnect cable with the new interconnect cable 010-11351-40
IMPORTANT: Garmin Compact Reactor 40 Autopilot Compatibility Considerations
The individual devices that come with the Compact Reactor 40 Autopilot Starter Pack are extremely limited compatibility with other Garmin Autopilot devices and systems. The following components can be used in any newer Reactor 40 Autopilot system
GHC 20
Shadow Drive
Buzzer
NMEA 2000 network